Primary key is always unique while foreign key can be duplicated. d) Error arr is a array of function pointer. What function should be used to free the memory allocated by calloc() ? For example: The college Database organizes the data about the admin, staff, students and faculty etc. 16. And, you can use the put() Which of the following establishes a top-to-bottom relationship among the items? . 48. Procedural language among the following is __________ 28. View Answer, 32. printf(\\rha); B. cmp is a void type pointer function. What will you do to treat the constant 3.14 as a float? C. long double . D. None of above. The section contains C++ multiple choice questions and answers on classes and functions, fiend function, objects and operators, operator overloading, constructors and destructors, subscripting and dereferencing and other string classes. 215. a) Referential B. rem = modf(5.5, 1.3) . D. #include. A. What do the following declaration signify? B. D. 100 Multiple Choice Questions In C Programming Part 1 This collection of 100 Multiple Choice Questions and Answers (MCQs) In C Programming : Quizzes & Practice Tests with Answer focuses on C Programming. . A. printf(My salary was increased by 15/%!); Division, Multiplication, Addition, Subtraction D. c) i, iii and iv only Which of the following function is more appropriate for reading in a multi-word string? d) Specific View Answer. Data structures The C++ language provides a new operator for the allocation of memory and a delete operator for the deallocation of memory. Table is a collection of data, organized in terms of rows and columns. Pick the incorrect statement about inline functions in C++? #include a) double B. B. B. .like Once the element gets removed, move all the elements following it, towards the front by 1 position. b) Cursors are used to maintain transactional integrity and consistency Which of the following is a correct identifier in C++? Assignment, 82. d) class having two forms d) Decentralized C. malloc() and calloc() a) Both Type safety & Exception When the function has no definition, such function is known as "do-nothing" function.The "do-nothing" function is known as a pure virtual function.A pure virtual function is a function declared in the base class that has no definition relative to the base class. ((((a+i)+j)+k)+l) A. Decimal system The section contains C++ MCQs on different aspects of a container which includes creation and design of new containers, vectors and sequences, types of inheritance and various class hierarchies, sequences like seq_con array class, seq_con vector class, stl pair and heap, vtable, vptr, generators, array type manipulations, tuples, complex library, valarray, bitset and class relationships. Which of the following user-defined header file extension used in c++? 1000+ DBMS MCQ PDF arranged chapterwise! It also contains arrays, pointers, references and structures. C. During execution B. b) Overloading of classes b) CREATE PACKAGE b) Relational database management system c) Meta data What would be the equivalent pointer expression for referring the array element a[i][j][k][l], A. Which of the following functions construct histograms and use buckets for ranking? Which one of the following is not a reserved keyword for C? B . A. use float(3.14f) C. || operator d) bool *(*(*(*(a+i)+j)+k)+l) D. double In SQL, there are two wildcards: Always use IS NULL to look for NULL values. View Answer, 23. Find the output of the following program. { b) Parameterized constructor strnset(), 32. 45. D. c) 1 Here you see that "S_Id" column in the "Orders" table points to the "S_Id" column in "Students" table. C. int d) All of the mentioned View Answer, 50. B. Which of the following correctly shows the hierarchy of arithmetic operations in C? a) Relation set { The element will be set to 0. The query specifying the SQL view is said to be updatable if it meets which of the following conditions? LIKE is a keyword that is used in the WHERE clause. D. None of the above. printf(%f\n, log(36.0)); 41. C. AT & Ts Bell Laboratories of USA in 1972 }, A. B. flushes only specified stream. What will be the output of the following C++ code snippet? D. Error in fclose(). a) Relational schema 11. echo \\n; }, A. View Answer, 28. C. float, double, long double You must manually create an index for foreign key. View Answer, 14. C. gets(); . c) Purge C.& a) Hierarchical What will you do to treat the constant 3.14 as a long double? _______ indicates the maximum number of entities that can be involved in a relationship. & operator Here, comes the need of file handling in C. File handling in C enables us to create, update, read, and delete the files stored on the local file system through our C program. 19. C. P is character type ALTER TABLE "table_name" A. int num[6] = { 2, 4, 12, 5, 45, 5 }; 215 1 Specify the 2 library functions to dynamically allocate memory? . I n this tutorial, we are going to see how to use the Caesar cipher to encrypt a message.Caesars cipher, also known as Shift Cipher, is one of the oldest and simplest forms of message encryption. FILE *fs, *ft, *fp; fp = fopen(A.C, r); d) spaces in b) i, ii and iii only c) macro . double, long int, float. float a=3.14; d) Sanfoundry 50. C. go back B. b) They are generally very large and complicated function 29. FROM "table_name" d) Drop table teaches; d) All of the mentioned d) ERD c) 0.11 | (pipeline) c) One to many relationship between the tables that connects them The LIMIT operator can be used in situations such as the above, where we need to find the top 3 students in a class and do not want to use any conditional statements. c) try C. use f(3.14) Copyright 2011-2021 www.javatpoint.com. D. printf(\\n); 73. c) Network database management system 20. It is also used to organize the data in the form of a table, schema, views, and reports, etc. d) Graph Which of the following is not a type of Constructor in C++? Which command is used to remove a relation from an SQL? A. use 3.14LD A compiler return 0; D. Addition, Division, Modulus, Subtraction. C. #include What is the full form of DBMS? c) Environment, Schemas You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice. B. c) Lack of Authentication Which of the following is popular for applications such as storage of log files in a database management system since it offers the best write performance? View Answer. a) array{10}; memalloc(variable_name, 0). int main() View Answer, 44. a) Left outer join D. It may vary from one operating system to another. D. Which concept allows you to reuse the written code in C++? B. d) All of the above 43. D. 84. d) 0 scanf(%Lf %Lf, &a, &b); Make HEAD points to the second node. C. standard error streams Program do no return a value. Double Which of the following command is correct to delete the values in the relation teaches? A. strchr() It has different shortcut keys such as ctrl+c system() a) Storing data D. C. 713 . By default, all the files in C++ are opened in _________ mode. 20. d) Right outer join 4. D. a) #include [userdefined] . b) Concatenation d) hf a) Organized collection of information that cannot be accessed, updated, and managed C. string.h There are four ways to reverse a string in C, by using for loop, pointers, recursion, or by strrev function. d) r distinguishes between comments and outer data Note: A table has a specified number of columns, but can have any number of rows. C. IS NULL operator. b) DCL (Data Control Language) a) Copy constructor FROM "table_name" SQL (Structured Query Language) is a special-purpose programming language designed for managing data held in a relational database management system (RDBMS). a) 4NF b) array array[10]; A. The scope of SQL includes data insert, query, update and delete, schema creation and modification, and data access control. move_uploaded_file() function. Enclosing it with a semicolon will generate an error. . A. strnchar() a) Drop table View Answer, 51. d) Collection of Fields The #define preprocessor directive lets a programmer or a developer define the macros within the source code. b) Constructor called five times and then Destructor called five times WHERE "column_name" LIKE {PATTERN} A variable that stores address of an instruction Which is the subset of SQL commands used to manipulate Oracle Database structures, including tables? Representation of void pointer E. Syntax error, 99. 89. strrchr(). 27. B. . a) Primary Key When the ROLLUP operator for expression or columns within a GROUP BY clause is used? What will the function randomize() do in Turbo C under DOS? c) Super key By default primary key adds a clustered index on the other hand foreign key does not automatically create an index, clustered or non-clustered. A. use 3.14LD c) 5NF 74. d) A successful run in both C and C++ Which of the following function is used to find the first occurrence of a given string in another string? Default arguments in C++. b) Sequence container 83. In this tutorial, we will learn how to perform the deletion of an array element at a particular position, in the C++ programming language. I n this tutorial, we are going to see how to reverse a string in C using pointers.For example, if a user enters the string StackHowTo, it will be oTwoHkcatS when reversed. View Answer, 48. View Answer, 54. Syntax: *(*(*(*(a+i)+j)+k)+l) Here are two tables first one is students table and second is orders table. strchar() What will be printed after execution of the following code? View Answer. 7. Sum Of Series 1 + x ^ 1 + x ^ 2 + x ^ 3 + . By default a real number is treated as a, A. Float View Answer, 20. B. d) RAID level 3 char **ptr[3]; 92. Evaluate the statements issued by the DBA in the given sequence if OE and SCOTT are the users and the ORDERS table is owned by OE. B. c) Maximum cardinality b) Manipulating data 52. Which of the following is a feature of the database? A. use 3.14LD c) query does not have group by or having clause Which of the following is used for comments in C++? b) DBMS is a high-level language b) Delete from teaches where Id =Null; D. dos.h. a) call by object #include 68. A. standard error 54. B. D. Error: we cant divide. Unfortunately, there is no direct way by which we can express the division operator. c) Both code 1 and code 2 Algorithm: DeleteFromBeginning View Answer, 11. b) Storage b) // comment */ What would be the outcome after executing the statements? 31. Which of the following statement obtains the remainder on dividing 5.5 by 1.3 ? c) # SELECT "column_name" D. ptr is an pointer to array. c) delete is a keyword whereas delete[] is an identifier View Answer. View Answer, 33. C. returns a random number generator with a random value based on time. Hello Everyone! a) Instance & Relation C. (hyphen) b) User interface provided Which of the following is not a type of database? printf(\\bsi); b) A^value B. b) Data. b) Providing multi-users access control D. a) Storage space is wasted & Changing the data in one spot will cause data inconsistency A. scanf(%f %f, &a, &b); C. c means argument count v means argument vector b) Relation & Schema Arithmetic . a) class having only single form b) Strong entity set c) Segmentation fault c) Referencing { What will be printed after execution of the following program code? You can use the #define directive to define a string constant. View Answer, 35. B. B. standard error types What is right way to Initialize array? C. Multiplication, Addition, Division, Subtraction b) call by pointer In which of the following formats data is stored in the database management system? math.h, 14. A. The section contains MCQs on different concepts of relational algebra. Which of the following key is required in to handle the data when the encryption is applied to the data so that the unauthorised user cannot access the data? . What will be the output of the following C++ code? B. Integer pointer Which bitwise operator is suitable for turning off a particular bit in a number? What is abstract class in C++? Null character in C. Introduction. b) Collection of data or information without organizing It is a common mistake done, and one should always treat this directive as any other header file. View Answer, 6. b) In Structures, members are public by default whereas, in Classes, they are private by default System programming language. Which of the following range is a valid long double (Turbo C in 16 bit DOS OS) ? Delete c) Purge d) Remove View Answer. C. Octal system It will immensely help anyone trying to crack an exam or an interview. View Answer, 42. Delete a Node from the beginning of a Linked list. b) {t | P(t)} PHP File for beginners and professionals with examples, php file, php session, php date, php array, php form, functions, time, xml, ajax, php mysql, regex, string, oop B. . C. argv is a function pointer. Most of the developers prefer the constant names to be in the upper case to find the differences. The #define directive should not be enclosed with the semicolon(;). 47. C.C C. A.C a) Microphone a) Data B.C b) ^ c) Error c) Single-user Access only Which of the following is the best way to represent the attributes in a large db? c) Sanfoundry. B. short int, double, long int . 21. What will you do to treat the constant 3.14 as a float? b) Database Management System Int(*ptr)[10]; A. ptr is array of pointers to 10 integers A. arr is a array of 10 character pointers. JavaTpoint offers college campus training on Core Java, Advance Java, .Net, Android, Hadoop, PHP, Web Technology and Python. What does the following declaration mean? B. asiha 33. b) Error It means a short way to complete the work on time. d) A::value View Answer, 9. c) db_securityadmin void main() Which of following is not a valid name for a C variable? B. free(var-name); c) Natural join Practice here the best Python MCQ Questions, that checks your basic knowledge of Python Programming.This Python MCQ Online Test Contains 30+ best Multiple Choice Questions. The traditional storage of data organized by the customer, stored in separate folders in filing cabinets is an example of ______________ type of database management system. The Null character in the C programming language is used to terminate the character strings. View Answer. b) Data Retrieval Language C. main() A. remove(var-name); b) C++ is a procedural programming language . a) Data and the DBMS a) TCL (Transaction Control Language) Which of the following is the subset of SQL commands used to manipulate Oracle Structures, including tables? c) C++ supports both procedural and object oriented programming language A. rem = (5.5 % 1.3) c) Organized collection of data or information that can be accessed, updated, and managed 28. B. real B. Standard ANSI C recognizes ______ number of keywords? A. examveda Which of the following set should be associated with weak entity set for weak entity to be meaningful? Please mail your requirement at [emailprotected] Duration: 1 week to 2 week. 65. Which bitwise operator is suitable for checking whether a particular bit is on or off? b) cpp d) Code 2 only d) C++ technique to avoid multiple copies of the base class into children/derived class a) Code 1 only d) All of the mentioned Why the following statement is erroneous? What are the different types of real data type in C ? D. d) Error in both C and C++ c) Group expressions or columns specified in a GROUP BY clause in one direction, from right to left, for computing the subtotals Our 1000+ MCQs focus on all topics of the DBMS subject, covering 100+ topics. D. int n(6) = { 2, 4, 12, 5, 45, 5 }; 78. . 51. c) Deletes particular tuple from relation C. use 3.14DL The section contains C++ multiple choice questions and answers on different types of algorithms like C style, standard library, modifying sequence and non modifying sequence, different types of iterators, stl algorithms, functors, sequences, containers and allocators. Which of the following range is a valid long double (Turbo C in 16 bit DOS OS) ? The "S_Id" column in the "Students" table is the PRIMARY KEY in the "Students" table. A. d) Analysing code a) Saves overhead of a return call from a function c) Value of a: 10 10. What do the following declaration signify? B. PHP form for beginners and professionals with examples, php file, php session, php date, php array, php form, functions, time, xml, ajax, php mysql, regex, string, oop b) Physical C. Both can occur multiple times, but a definition must occur first. Wish you the best in your endeavor to learn and master Database Management System! . a) Based on the number of bits in the system ft = fopen(C.C, r); The scope of a variable is defined as its range in the program under which it can be accessed. A. Integer DBMS Integrity Constraints with DBMS Overview, DBMS vs Files System, DBMS Architecture, Three schema Architecture, DBMS Language, DBMS Keys, DBMS Generalization, DBMS Specialization, Relational Model concept, SQL Introduction, Advantage of SQL, DBMS Normalization, Functional Dependency, DBMS Schedule, Concurrency Control etc. 3. d) DBMS stores, modifies and retrieves data View Answer, 2. D. None of above, 60. d) C++ is a functional programming language B. void main() 8. A.-3.4e38 to 3.4e37 If the condition is correct, it returns TRUE otherwise FALSE. What is the purpose of fflush() function. As the preprocessor parses the source file, each occurrence of the name is replaced by its associated text. SQL (Structured Query Language) is used to perform operations on the records stored in the database, such as updating records, inserting records, deleting records, creating and modifying database tables, views, etc. 36. It only serves as a placeholder. Wish you the best in your endeavor to learn and master C++! d) Candidate key View Answer, 25. This way, the remaining elements will still be stored in a continuous form. The section contains MCQs on query processing and optimization techniques, selection, sort and join operations, relational expressions and materialized views. A. char *ptr[3](); DROP COLUMN "column_name" d) All of the mentioned Which files will get closed through the fclose() in the following program? I have updated customer table that contains latest customer details from another source system. d) Data Backup Management System Java reserved keywords are predefined words, which are reserved for any functionality or meaning. D. / * + . C. free(); b) Deletes relation A virtual function is not used for performing any task. Addition, Subtraction, Multiplication, Division What is the size of wchar_t in C++? c) Changing the data in one spot will cause data inconsistency ch = G; a) $ Which of the following range is a valid long double (Turbo C in 16 bit DOS OS) ? B. laststr() who have taken all the subjects required for one to graduate.) The foreign key constraint is generally prevents action that destroy links between tables. C. strstr() b) Tuples What will be the output of the following C++ code? View Answer, 44. View Answer, 37. 1. Who invented C++? If the two strings are identical, then strcmp() function returns. d) Data Definition Language A. What is information about data called? 57. . c) Text fs = fopen(B.C, r); 38. b) Tera data You cannot use it as a variable name, constant name etc. as b) Default constructor D.Bjarne Stroustrup, A. The database is a collection of inter-related data which is used to retrieve, insert and delete the data efficiently. c) Error in C++ and successful execution in C So now, let's try to find out the correct SQL query for getting results for the first requirement, which is: Query: Find all the students who can graduate. What is the maximum number of dimensions an array in C may have? a) Dept_id should not be used in group by clause D. ! Which of the following C++ code will give error on compilation? This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. int i=01289; . d) The program compiled successfully but throws an error during run-time . lB. C++ MCQ on Class Hierarchies, Library & Containers. D. printf(My salary was increased by 15%%!); 42. PHP File for beginners and professionals with examples, php file, php session, php date, php array, php form, functions, time, xml, ajax, php mysql, regex, string, oop #include C. char *p = (char*)malloc(100); D. The compiler would report an error. View Answer, 12. d) With B. argv is a pointer to a char pointer. default The section contains C++ MCQs on function declaration and overloading, operators and statements, values and arguments, macros, namespaces and exceptions. d) Type safety C. Error D. None of above. A keyword is a reserved word. d) To produce a cross-tabular report for computing subtotals by grouping phrases or columns given within a GROUP BY clause in all available directions A. 3.4E-4932 to 1.1E+4932 Which of the following helps in achieving this goal? 13. SQL General Functions: NVL, NVL2, DECODE, COALESCE, NULLIF, LNNVL and NANVL, SQL Server's Categorization of Stored Procedures based on Input and Output Parameters, Use of Single Quotes for Stored Procedure Parameters in SQL Server. C. Exam veda . b) 2NF What will be the output of the following C++ code? Which of the following is known as the process of viewing cross-tab with a fixed value of one attribute? View Answer. }, A. a) Pointers are used to maintain transactional integrity and consistency C. use f(3.14) C. main 2011-2022 Sanfoundry. It is made up of the combination of two or more keys. b) Text The section contains multiple choice questions and answers on different storage structures like physical, flash, tertiary, data-dictionary and file structures like RAID, file record organisation and buffers. a) Where Exception Handling: It does not provide any direct support for exceptional handling. d) Store data in multiple locations What is DBMS? C. stdio.h and stddef.h Which standard library function will you use to find the last occurance of a character in a string in C? View Answer, 49. Typically, #defines is shared between multiple files are stored in a header file (*.h) which is included in each source file that requires the #define. B. returns a random number generator in the specified range. B. 56. SQL UPDATE with JOIN. 1289 What will be the output of the following C++ program? a) Dot representation The section contains C++ multiple choice questions and answers on basics, oops concepts, c++ concepts, static constant keyword, differences between c and c++. D. memalloc() and faralloc(). Which of the following is not a correct variable type? A. ptr is a pointer to an array of 30 integer pointers. It holds only two values: TRUE (1) or FALSE (0).It is often used with conditional statements. For 16-bit compiler allowable range for integer constants is ________? To print out a and b given below, which of the following printf() statement will you use? 61. c) Domain & Schema }, A. absiha View Answer, 7. The move_uploaded_file() function moves the uploaded file to a new location. C. printf(My salary was increased by 15%!); Learn competitive MySQL mcq questions and answers with easy and logical explanations. The logical design, and the snapshot of the data at a given instant in time is known as? Which of the following is known as a set of entities of the same type that share same properties, or attributes? A. Expression: is the value that is assigned to that constant which is defined. This macro definition will allow the constant value that should be declared for the usage. The section contains multiple choice questions and answers on dealing with the concept of Relational Model. #include Which of the following is not an example of DBMS? What is the benefit of c++ input and output over c input and output? What do the following declaration signify? Theoratically no limit. D. This is a type of substitution cipher in which each letter of the original message is replaced by a letter corresponding to a number of letters shifted up or down in the What will be the output of the following C++ code snippet? C++ Source Files, Classes and Operator Overloading, C++ Derived Classes, C++ Templates & Exception Handling, C++ Class Hierarchies, C++ Library & Containers, Data Structures Multiple Choice Questions, Computer Science Multiple Choice Questions, Object Oriented Programming MCQ PDF Download, 1000 Data Structures & Algorithms II MCQs, 50k Electronics & Communication Engg MCQs. a) CREATE CLUSTER 63. A. SQL INSERT STATEMENT. Which one of the following is not a valid identifier? What is the difference between a declaration and a definition of a variable? ((((a+i)+j)+k)+l) a) Segmentation fault B. b) delete is used to delete normal objects whereas delete[] is used to pointer objects What is meant by a polymorphism in C++? What is the similarity between a structure, union and enumeration? Which header file should be included to use functions like malloc() and calloc()? Deletion refers to removal of an element from an Array, without effecting the sequence of the other elements. D. Cambridge University in 1972. 0289 C. printf(%Lf %Lf, a, b); C. 216 d) Query language d) 0.10000000000000001 d) Both Pivoting and Dicing Check Positive / Negative Number Of An Array, Find First Occurrence of number in Sorted Array, Find Last Occurrence of number in a Sorted Array, Read A Line By Line And Write Line By Line, Reading A No. a) Error in C and successful execution in C++ 17. A. float B. However, if we need to do so, we may store it onto the local file system which is volatile and can be accessed every time. B. stdlib.h #define in C. #define in C. In the C programming language, the preprocessor directive acts an important role within which the #define directive is present that is used to define the constant or the micro substitution. d) runtime error Which of the following operations can be performed on the file NOTES.TXT using the below code? A. conio.h use 3.14L a) Data Described Language Both can occur multiple times, but a declaration must occur first. c) These functions are inserted/substituted at the point of call b) Tuple relational calculus c) compile time error View Answer, 4. 3.4E-4932 to 3.4E+4932 D.-32768 to 32767. D. So, it is always better to learn any concept in C language compared to other languages. 80. What will be the output of the following C++ code? View Answer, 26. a) Binary A definition occurs once, but a declaration may occur many times. C. + / * b) ] C. stdio.h . View Answer, 3. . View Answer, 48. 14. A special symbol other than underscore }. D.->, A. In which order do the following gets evaluated, 1. d) Remove View Answer, 16. 15. -1 D. Both A and B. What happens if a piece of data is stored in two places in the db? a) Primary key What will be the output of the following C++ program? You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice. Which of the following is a function of the DBMS? Writing gets replaced by the contents of the file stdio.h, A. b) Nothing is printed DBMS Three schema Architecture with DBMS Overview, DBMS vs Files System, DBMS Architecture, Three schema Architecture, DBMS Language, DBMS Keys, DBMS Generalization, DBMS Specialization, Relational Model concept, SQL Introduction, Advantage of SQL, DBMS Normalization, Functional Dependency, DBMS Schedule, Concurrency Control etc. A. int main() a) 30 79. What will be printed after execution of the following code? 6. View Answer. a) Neighbour set D. f is a simple declaration of pointer variable. Originally based upon relational algebra and tuple relational calculus, SQL consists of a data definition language and a data manipulation language. C. use 3.14DL Practice SQL Query in browser with sample Dataset. ______________ is a set of one or more attributes taken collectively to uniquely identify a record. D. scanf(%f %lf, &a, &b); 90. C. (((a+i)+j)+k+l) The #define is a preprocessor directive allows you to specify a name and replacement text. What will be the output of the following C++ program? . c) DDL (Data Definition Langauge) D. dalloc(var-name); 25. c) IBM DB2 c) Table int arr[10] = {1,2,3,4,5}; 64. b) VTC In the C programming language, the preprocessor directive acts an important role within which the #define directive is present that is used to define the constant or the micro substitution. A. a) r distinguishes between comments and inner data View Answer. Run C++ programs and code examples online. ALTER TABLE "table_name" View Answer. It is used to insert a single or a multiple records in a table. B.Hexadecimal system c) DBMS is a programming language Which statement will you add in the following program to work it correctly? What is the correct value to return to the operating system upon the successful completion of a program? A. B. ptr is a pointer to an array of 10 integers Which is the only function all C programs must contain? Developed by JavaTpoint. . B. malloc(variable_name, 0) View Answer, 12. d) All of the mentioned int i; View Answer, 40. Which of the following symbol is used to declare the preprocessor directives in C++? Mail us on [emailprotected], to get more information about given services. #include. C. All of them let you define new pointers Using Division Operator. b) stored on disk in an ASCII text format 37. B. B. b) Sanfoundry!. 39. c) Charles Babbage What is a database? 101.011 View Answer. c) Rank() 36. b) Group by clause is not valid in this query The section contains C++ questions and answers on integer, float, character and boolean types. . View Answer, 15. 69. The section contains C++ MCQs on lambda expressions and command line arguments. 88. d) : D. d) finally B. Let us look into the data structures and algorithms in C. Before moving ahead, and we need to know the data structure. In SQL, which command(s) is(are) used to change a table's storage characteristics. B. char *ptr[3]; 94. c) Classes with same names What do the c and v in argv stands for? C++ Keywords. #include What will you do to treat the constant 3.14 as a long double? What do the following declaration signify? A number && operator B. We add new tests every week. The #define directive can use any of the basic data types present in the C standard. SQL FOREIGN KEY. D. double, long int, float. 128 characters View Answer. B. D. What operator tests column for the absence of data? printf(%d, arr[5]); What will be the output of the following C++ program? D. Reposition the file pointer to begining of file. D. Read and Write, A. P is a constant What is the function of the following command? stddef.h c) Owner set B. Dennis Ritchie 34. _ (underscore). use (f)(3.14). a) Segmentation fault b) Pivoting C. Prototyping View Answer, 47. A keyword used to create variables View Answer. How structures and classes in C++ differ? use 3.14f 87. Which of the following is a feature of DBMS? d) Entity Relation model View Answer, 7. c) Data Integrity Free the first node from memory. The DBMS acts as an interface between ________________ and ________________ of an enterprise-class system. Which of the following cannot be checked in a switch-case statement? b) Minimum cardinality The following is an example of how you use the #define directive to define a numeric constant: In this example, the constant named AGE would contain the value of 10. Learn competitive MySQL mcq questions and answers with easy and logical explanations. c) 4 D. During preprocessing. View Answer. Sun Microsystems in 1973 #include B. b) 10 2.5 For any query, feel free to reach out to us via the comments section down below. 42. The library function used to find the last occurrence of a character in a string is, A. strnstr() a) Any Class in C++ is an abstract class NAME: is the name of a particular constant. The maximum combined length of the command-line arguments including the spaces between adjacent arguments is, A. B. ptr is a array of 30 pointers to integers. OR What will be the output of the following C++ program? .n, Swap Two Numbers Without Using Third Variable, Calculate Standard Deviation Using Function, Print Reverse Order And Print Sum Of Elements. b) #define . View Answer, 8. c) Data in the form of audio or video Check the Evenness / Oddness Of An Array. c) Class specifically used as a base class with atleast one virtual functions d) cin: garbage value If a variable is a pointer to a structure, then which of the following operator is used to access data members of the structure through the pointer variable? 44. In the following code, the P2 is Integer Pointer or Integer? D. The below code will help you understand this logic. B. d) 2 A. returns a random number. a) A->value D. A declaration occurs once, but a definition may occur many times. A. flushes all streams and specified streams. These Python MCQs are very popular & asked various times in Python Exam/Interviews. c) SCOTT would be able to query the OE.ORDERS table (i.e. Macro definitions cannot be changed within the programs code as one does with other variables, as macros are not variables. . c) S 0713 d) Top-down d) None d) Friend constructor The scope of #define is limited to the file in which it is defined. d) Catalogs, Schemas 77. A list of 32 Keywords in C++ Language which are also available in C language are given below. c) Catalog A. The operator used to get value at address stored in a pointer variable is. In which numbering system can the binary number 1011011111000101 be easily converted to? View Answer. D. scr is a member of function pointer. In other words, "The scope of a variable is the portion of the program within which it is defined and can be accessed." You can also download the PDF of Database Management System MCQs by applying below. d) define B. strrchr() In simple words you can say that, a foreign key in one table used to point primary key in another table. a) spacesintext fclose(fp, fs, ft); a) db_sysadmin b) Error in C and successful execution in C++ 1. stdlib.h . a) Deriving new classes from existing classes In this tutorial, we will learn how to perform the deletion of an array element at a particular position, in the C++ programming language.. Let's first understand what does deletion of an element refers to in an Array. c) Security for stored data a) i, ii, and iv only You can also download the PDF of C++ Programming MCQs by applying below. D. c) Error If you would like to learn "Database Management System" thoroughly, you should attempt to work on the complete set of 1000+ MCQs - multiple choice questions and answers mentioned above. d) 3NF & operator C. || operator D. ! C. 101011 C. ptr is an array of 10 integers Take Python MCQ Online Test to Test Your Knowledge . SQL INSERT statement is a SQL query. Sum Of Series x + x ^ 2 / 2 + x ^ 3 / 3 + x ^ 4 / 4 + . c) class having many forms View Answer, 21. B. scr is a function pointer. Booleans are the simplest data type works like switch. 67. View Answer, 34. d) Storage space is wasted . Which of the following approach is used by C++? Suppose we want to delete a node from the beginning of the linked list. View Answer, 23. c) Database application and the database 1 View Answer, 39. The syntax is as follows: C. None of the above 75. C. 1.1E-4932 to 1.1E+4932 a) Edgar Frank Codd A. So, #defines which are created in one source file are NOT available in a different source file. 71. What happens if the following program is executed in C and C++? View Answer, 45. ADD "column_name" datatype D. 1.7E-4932 to 1.7E+4932. What will happen if in a C program you assign a value to an array element whose subscript exceeds the size of array? C. strrchr() c) Distributed b) Text, files containing data Ltd. B. View Answer. b) Schemas, Environment D. return. a) Sanfoundry! 85. How will you free the allocated memory ? d) Hello World 81. a) Find the groups that make up the subtotal in a row b) Network View Answer, 56. Integer stdlib.h b) #include userdefined c) call by value Prop 30 is supported by a coalition including CalFire Firefighters, the American Lung Association, environmental organizations, electrical workers and businesses that want to improve Californias air quality by fighting and preventing wildfires and reducing air pollution from vehicles. 30. Which of the following is the correct syntax of including a user defined header files in C++? a) Object-oriented database management system d) Bjarne Stroustrup B. The oldest DB model is _______________ . a) /* comment */ a) No-backup for the data stored b) Ken Thompson View Answer, 34. b) Create view as 3.4E-4932 to 3.4E+4932 b) High Level of Security _____________ is a hardware component that is most important for the operation of a database management system. d) DML (Data Manipulation Langauge) PHP Boolean. b) float d) Triggers are used to maintain transactional integrity and consistency The section contains MCQs on classification of failures, backup systems, buffer management and recovery and different lock releases. We can not use these keywords as our identifier names, such as class name or method name. . d) SCOTT would not be able to query the OE.ORDERS table Exam_veda C. arr is a array of characters. Which of the following is correct according to the technology deployed by DBMS? View Answer, 3. Representation of NULL pointer Series 1 -4 7 -10 . D. A. (Defining a foreign key constraint on single column). d) Printer i = ch-A; C. f is a function pointer. b) The REVOKE statement would remove the SELECT privilege from SCOTT as well as from the role R1 View Answer, 46. C. rem = fmod(5.5, 1.3) B. a) MySQL View Answer, 4. Who created the first DBMS? SQL Tutorial. View Answer, 24. An identifier should not be any query language keywords such as SELECT, FROM, COUNT, DELETE, etc. printf(). A. Examveda Defining b) from clause has 1 relation A. printf(\n); _________________ operations do not preserve non-matched tuples. void main() { int arr[10] = {1,2,3,4,5}; printf(%d, arr[5]); }. To begining of file about inline functions in C++ are opened in _________ mode the above 75 the element be... And algorithms in c. Before moving ahead, and reports, etc at & Ts Bell of. The maximum number of dimensions an array, without effecting the sequence of the following code, the remaining will... Constructor D.Bjarne Stroustrup, a numbering system can the Binary number 1011011111000101 be easily converted to system upon successful! Range is a collection of inter-related data which is the size of wchar_t in?. A virtual function is not a type of constructor in C++ language statement. Python Exam/Interviews operator D. any task the concept of relational Model, modifies and retrieves data View Answer 47... Column for the usage to retrieve, insert and delete the data at a given instant in is! Competitive MySQL MCQ questions and answers with easy and logical explanations be in the `` Students '' table or... A collection of data a virtual function is not used for comments in C++ a switch-case statement program!, 32 work on time be involved in a continuous form Write, P! Number generator with a fixed value of a: 10 10 from clause has 1 relation a. (... Double b random value based on time character in a pointer variable need to know the data at given... Table is a programming language is used to free the first DBMS code as one with... Moves the uploaded file to a new operator for expression or columns a... Compiler return 0 ; D. Addition, Division what is the similarity a... Free ( ) function moves the uploaded file to a char pointer correct according to the operating upon. Select, from, COUNT, delete, etc what is delete operator in c++ mcq, each occurrence of the is! I = ch-A ; c. f is a feature of DBMS popular & asked various in! Manually create an index for foreign key can be involved in a continuous form between ________________ ________________... Having many forms View Answer, 7, it is made up of the following helps in this! Where clause as one does with other variables, as macros are variables... < stdio.h > a ) call by object # include < conio.h > 68 operations can be on! The beginning of the following is correct according to the Technology deployed by DBMS Bell! 2, 4, 12, 5, 45, 5, 45,,! Language keywords such as class name or method name the beginning of a data language! Graduate. attributes taken collectively to uniquely identify a record data types present in the is!: TRUE ( 1 ) or FALSE ( 0 ).It is often used with conditional statements, quizzes viva-voce! Number of dimensions an array of 30 Integer pointers shows the hierarchy of arithmetic operations in c or. A pointer variable is with sample Dataset and command line arguments } memalloc. Wish you the best in your endeavor to learn any concept in c language given! Must occur first ) RAID level 3 char * what is delete operator in c++ mcq ptr [ 3 ;!, 7. c ) Purge d ) storage space is wasted not be checked in table. Us on [ emailprotected ] Duration: 1 week to 2 week are used to organize the data and. A and b given below C++ language provides a new location = ;! Provide any direct support for exceptional Handling ) They are generally very and... Scope of SQL includes data insert, query, update and delete, schema views... Would be able to query the OE.ORDERS table Exam_veda c. arr is a functional programming language key always. Data integrity free the memory allocated by calloc ( ) a. remove ( var-name ) ; 73. )! ( ; ) line arguments of entities of the other elements by 1 position 2! Strstr ( ) a. remove ( var-name ) ; what will be the output of the following construct... At a given instant in time is known as will allow the constant 3.14 as a float requirement [. Competitive MySQL MCQ questions and answers on dealing with the concept of relational algebra and tuple calculus. 5, 45, 5, 45, 5, 45, 5 } ; memalloc (,... A keyword that is used to what is delete operator in c++ mcq a single or a multiple in. Domain & schema }, a P2 is Integer pointer which bitwise operator is suitable for checking whether a bit... And enumeration include < conio.h > 68 taken all the files in C++ language provides new! ( 0 ).It is often used with conditional statements of a: 10 10 the constant 3.14 as float. The best in your endeavor to learn and master C++ happen if in a c program you assign value. Php Boolean have group by clause D. x ^ 2 / 2 x! Using Third variable, Calculate standard Deviation Using function what is delete operator in c++ mcq Print Reverse order and Print sum Series. Applying below 30 pointers to integers data integrity free the first node from the beginning of the following C++ snippet! Choice questions and answers with easy and logical explanations and consistency c. use 3.14DL practice SQL query in with! Delete a node from the beginning of a program Integer pointers the combination two! 4Nf b ) A^value b. b ) They are generally very large and complicated 29! Address stored in two places in the `` Students '' table a float on lambda expressions command... Int n ( 6 ) = { 2, 4, 12, 5, 45, }... Backup Management system Java reserved keywords are predefined words, which of following. Hierarchical what will be the output of the following is a array of 10 integers Take Python MCQ Test. Long double is often used with conditional statements for checking whether a particular bit is on or?! Students '' table is the purpose of fflush ( ) c ) query does not have group or. > 68 language and a delete operator for the absence of data is stored in a number # defines are! Entities of the following is known as a float be in the helps... Are generally very large and complicated function 29 as one does with other variables, as are... And tuple relational calculus, SQL consists of a return call from a function c ) cardinality... Read and Write, a. a ) 4NF b ) stored on disk in an ASCII text 37. A table, schema what is delete operator in c++ mcq views, and we need to know the data.. Entity to be meaningful, Calculate standard Deviation Using function, Print Reverse order and Print sum of Series -4! A foreign key can be involved in a c program you assign a value what is delete operator in c++ mcq do not preserve non-matched.. Written code in C++ expressions and command line arguments operations, relational expressions and materialized views able query., from, COUNT, delete, etc and Write, a. P is a pointer... Laboratories of USA in 1972 }, a, long double you must manually an. 12, 5 } ; memalloc ( variable_name, 0 ), as macros are not variables other languages simple! What will you do to treat the constant 3.14 as a set of one more... Ptr [ 3 ] ; a Students '' table is a pointer to an,... Conditional statements [ emailprotected ] Duration: 1 week to 2 week, & a ) Left outer join it! And Python 30 79 on [ what is delete operator in c++ mcq ] Duration: 1 week to 2.! C. go back b. b ) Parameterized constructor strnset ( ) statement will you do to the! Checking whether a particular bit is on or off known as delete from teaches WHERE Id ;... Do in Turbo c in 16 bit DOS OS ) SCOTT as well as from the beginning of table! ) runtime error which of the following C++ program and retrieves data View Answer, 40 Deviation function! C may have execution in C++ from another source system training on Core Java,.Net, Android,,! > which of the following approach is used by C++ c. standard error types what is size... Following is known as upon the successful completion of a program the program successfully... Can occur multiple times, but a declaration may occur many times ] Duration: 1 week to week. 7 -10 PDF of database Management system d ) all of them let you define new pointers Using Division.! Arrays, pointers, references and structures by or having clause which of the command-line arguments the. Benefit of C++ input and output over c input and output over c input output! Instant in time is known as 34. d ) data in the?... Insert a single or a multiple records in a different source file works like switch what is delete operator in c++ mcq attributes records. Lf, & b ) A^value b. b ) array array [ 10 ] 92!, from, COUNT, delete, etc COUNT, delete, schema, views, the. To define a string in c language are given below, which command ( s ) is are! Test to Test your Knowledge learn any concept in c output of the command-line arguments including spaces... This goal to uniquely identify a record its associated text output over c input and output and stddef.h which Library... The file pointer to an array of 30 Integer pointers download the PDF database. ) c ) maximum cardinality b ) Deletes relation a virtual function not. As one does with other variables, as macros are not variables examveda Defining b ) Deletes relation a function. Or off, 1. d ): D. d ) 3NF & operator ||... Your requirement at [ emailprotected ], to get more information about given services characteristics.

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