MCQ Bank

C++ was developed by Bjarne Stroustrup at Bell Labs and evolved from the C language with influences from SIMULA 67. It introduced object-oriented programming features while maintaining compatibility with C.

CS508 Final Term AI Solved

Q21

Using SNOBOL, the correct way to create a one-dimensional array of 10 elements and each element contains 1.0, is;

A) V = ARRAY(10: 1.0)
B) V = ARRAY(10. 1.0)
C) V = ARRAY(10; 1.0)
D) V = ARRAY(10, 1.0)

AI Explanation

In SNOBOL, the ARRAY function uses a comma to separate the size and initial value of a one-dimensional array. ARRAY(10, 1.0) creates an array of 10 elements initialized with 1.0.

CS508 Final Term AI Solved

Q22

We use ______operator for indirect referencing in SNOBOL.

A) Binary dot(.)
B) Unary $
C) Unary dot(.)
D) Binary $

AI Explanation

SNOBOL uses the unary dot operator for indirect referencing. It allows the value of a variable to be treated as the name of another variable or object.

CS508 Final Term AI Solved

Q23

Which of the following language was designed as a hardware description language?

A) APL
B) PASCAL
C) SIMULA
D) PL/1

AI Explanation

PL/I was designed by IBM as a general-purpose language with features that included support for scientific, business, and system programming. It was also used for hardware and system-oriented applications.

CS508 Final Term AI Solved

Q24

Plus sign (+) is used for _______ in SNOBOL.

A) Body of the program
B) Immediate assignment
C) Line Continuation
D) Line Breakge

AI Explanation

In SNOBOL, the plus sign (+) is used to indicate line continuation. It allows a statement to continue onto the next line for better formatting and readability.

CS508 Final Term AI Solved

Q25

Which of following is considered as legal variable name in SNOBOL.

A) _myvar
B) .myvar
C) my.var
D) 1myvar

AI Explanation

In SNOBOL, variable names can begin with an underscore followed by letters or digits. Names beginning with a dot or number, or containing a dot within the name, are not valid variable identifiers.

CS508 Final Term AI Solved

Q26

The GOTO statement in SNOBOL is__________.

A) Implicit
B) An indirect reference
C) Explicit
D) Pattern matched

AI Explanation

The GOTO statement in SNOBOL is explicit because the programmer specifies the transfer of control directly. It uses labels to determine the target statement for execution.

CS508 Final Term AI Solved

Q27

Which of the following statement is correct in SNOBOL?

A) :S(label) F (label2)
B) : S(label) F(label2)
C) :S(label) F(label2)
D) :S(label)F(label2)

AI Explanation

The correct SNOBOL statement format uses a colon followed by success and failure labels with proper spacing and syntax. It allows control flow based on whether a pattern match succeeds or fails.

CS508 Final Term AI Solved

Q28

The ___________ operator is used for conditional assignment only when the entire pattern is matched.

A) . (dot)
B) $ (dollar)
C) + (plus)
D) - (minus)

AI Explanation

The dollar ($) operator in SNOBOL performs conditional assignment only after the complete pattern match is successful. This prevents assignments from occurring during partial matches.

CS508 Final Term AI Solved

Q29

In SNOBOL4, the ____________ function is used to replace one character with another in the entire string.

A) REPLACE
B) CHANGE
C) ALTERATION
D) EXCHANGE

AI Explanation

The REPLACE function in SNOBOL4 is used to substitute one character or substring with another throughout a string. It performs replacement operations on the specified text.

CS508 Final Term AI Solved

Q30

Which of the following language had great influence on modern high level programming languages like C?

A) Lisp
B) ALGOL68
C) FORTRAN I
D) COBOL

AI Explanation

ALGOL68 had a major influence on the design of modern high-level programming languages, including concepts that appeared in languages like C. It introduced structured programming features and advanced data handling concepts.

CS508 Final Term AI Solved

Q31

Space operator in SNOBOL can be used for _____________.

A) End Statement
B) Concatenation
C) Immediate Assignment
D) Replacement

AI Explanation

In SNOBOL, the space operator is used for concatenating strings or patterns. It combines elements to form a larger string expression.

CS508 Final Term AI Solved

Q32

The result of expression 2**3 in SNOBOL will be:

A) 5
B) 36
C) 8
D) 6

AI Explanation

The expression 2**3 represents exponentiation in SNOBOL, meaning 2 raised to the power of 3. The result is 8.

CS508 Final Term AI Solved

Q33

“Everything for everybody” was the motive of the language:

A) LISP
B) PL/1
C) JAVA
D) COBOL

AI Explanation

PL/I was designed with the goal of being a general-purpose language suitable for many types of applications, summarized by the phrase “Everything for everybody.” It combined features from scientific, business, and system programming languages.

CS508 Final Term AI Solved

Q34

Maps in SNOBOL may also be available in _______________

A) MATLAB online sources
B) C++ standard library
C) C standard library
D) Prolog standard library

AI Explanation

Maps are a data structure concept that is also supported in Prolog through its standard libraries and associative data handling mechanisms. SNOBOL's table features are similar to map structures in other languages.

CS508 Final Term AI Solved

Q35

COBOL was the first language that brought the concept of __________.

A) Structure
B) Variable
C) Records
D) Object

AI Explanation

COBOL was the first programming language to introduce the concept of records for organizing related data items. This feature made it suitable for business data processing applications.

CS508 Final Term AI Solved

Q36

____________ was designed by Niklaus Wirth in 1971.

A) Simula
B) Java
C) C
D) Pascal

AI Explanation

Pascal was designed by Niklaus Wirth in 1971 as a language intended for teaching structured programming. It became influential in programming education and language design.

CS508 Final Term AI Solved

Q37

Which statement is correct about SNOBOL?

A) Variable is declared first
B) Variables are not declared before use
C) Value is assigned to variable first
D) Variables must be declared before use

AI Explanation

In SNOBOL, variables do not require explicit declaration before they are used. Their type and existence are determined dynamically during program execution.

CS508 Final Term AI Solved

Q38

Plankalkül has __________ arithmetic.

A) Decimal Point
B) Long Point
C) Floating Point
D) Double Point

AI Explanation

Plankalkül, an early programming language designed by Konrad Zuse, included support for floating-point arithmetic. This was an advanced feature for its time.

CS508 Final Term AI Solved

Q39

Which of the following is an example of null assignment in SNOBOL?

A) NULL =
B) V = “NULL”
C) NULL = “NULL”
D) NULL = “Hello”

AI Explanation

In SNOBOL, a null assignment is represented by assigning an empty value, such as NULL =. It indicates that a variable is assigned no value.