MCQ Bank

ALGOL68 introduced several advanced features including user-defined data structures, reference types, and dynamic arrays. These features influenced the development of later programming languages.

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Symbolic assembly language and macro assembly were developed in:

A) 1970’s
B) 1960’s
C) 1980’s
D) 1950’s

AI Explanation

Symbolic assembly languages and macro assembly techniques were developed during the 1960s. They improved programmer productivity by allowing more readable code and reusable instruction patterns.

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In__________, there is no need to declare a variable and it takes the form of assigned value.

A) C
B) SNOBOL
C) Ada
D) ALGOL

AI Explanation

SNOBOL allows variables to be used without explicit declaration, taking their form from assigned values. This reflects its dynamic and flexible programming approach.

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SNOBOL 4 supports _________ types of functions.

A) Four
B) Two
C) Five
D) Three

AI Explanation

SNOBOL 4 supports three types of functions: built-in functions, defined functions, and primitive functions. These provide different levels of functionality for text processing and computation.

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The ANSI standard for C++ was first approved in:

A) May, 1995
B) November, 1997
C) August, 1994
D) January, 1996

AI Explanation

The first ANSI standard for C++ was approved in November 1997. This standardization helped establish a consistent specification for the C++ language.

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Identify the feature which was not available in FORTRAN-IV.

A) subprograms could also be passed as parameters
B) logical IF statement
C) support for structured programming
D) support for explicit type declarations

AI Explanation

FORTRAN-IV did not provide structured programming features because it was designed before structured programming became a common paradigm. It did support subprograms, logical IF statements, and explicit type declarations.

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Which statement is correct about Table in SNOBOL?

A) Table is indexed by table name.
B) Table is indexed by the key.
C) Table is indexed by number.
D) Table is indexed by table size.

AI Explanation

In SNOBOL, tables store values using keys as indexes rather than numeric positions. Each key is associated with a corresponding value in the table.

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In SNOBOL, the maximum length of string can be ________ characters.

A) 5000
B) 150
C) 1000
D) 255

AI Explanation

In SNOBOL, the maximum length of a string is generally limited to 1000 characters. This restriction was part of the language's original implementation.

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For string manipulation, SNOBOL does not use:

A) Regular Expressions
B) Variables
C) Keywords
D) Operators

AI Explanation

SNOBOL uses pattern matching features rather than regular expressions for string manipulation. It relies on patterns, variables, and operators to process strings.

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The __________ field is used to alter the flow of control of a SNOBOL program.

A) GOTO
B) PASS
C) STAY
D) CONTINUE

AI Explanation

The GOTO field in SNOBOL is used to change the normal sequence of program execution. It allows control to be transferred to another statement based on conditions or outcomes.

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Q10

In SNOBOL, ____________ operator is used to ensure that assignment occurs ONLY if the entire pattern match is successful.

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

AI Explanation

In SNOBOL, the dollar ($) operator ensures that assignment takes place only when the complete pattern match is successful. It prevents partial matches from causing unintended assignments.

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Q11

Using SNOBOL, the correct way to create a two-dimensional array of 2 x 8 is;

A) N = ARRAY('2.8')
B) N = ARRAY('2;8')
C) N = ARRAY('2:8')
D) N = ARRAY('2,8')

AI Explanation

SNOBOL uses the ARRAY function with dimensions separated by a comma to create multidimensional arrays. Therefore, a 2 x 8 array is created using ARRAY('2,8').

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Q12

Which of the following statement is correct about SNOBOL?

A) Poor Readability Poor Writability
B) Poor Readability Good Writability
C) Good Readability Poor Writability
D) Good Readability Good Writability

AI Explanation

SNOBOL is considered difficult to read and write because of its specialized pattern-matching syntax and unconventional programming style. These characteristics reduce maintainability for many programmers.

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Q13

One of the significant feature associated with SNOBOL is ________.

A) Performing arithmetic operation separately
B) Explicit Variable declaration
C) Allows String manipulation operation only
D) Mixing arithmetic and string operations

AI Explanation

A significant feature of SNOBOL is its ability to combine arithmetic and string manipulation operations. This flexibility was one of the language's notable strengths.

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Q14

_________ was the first language to add macro facility in a high-level language.

A) SNOBOL
B) LISP
C) PROLOG
D) COBOL

AI Explanation

SNOBOL was the first high-level programming language to introduce a macro facility. This allowed programmers to define reusable code patterns within a high-level language.

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Q15

______________ provide(s) support for data abstraction in Ada.

A) If-else structure
B) Procedure
C) Packages
D) Templates

AI Explanation

In Ada, packages provide support for data abstraction by allowing related data types, procedures, and functions to be grouped together with controlled visibility. They are a key feature for modular and abstract programming.

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Q16

Which of the following operator is used for pattern matching in SNOBOL?

A) != (Not Equal)
B) (Space)
C) . (Dot)
D) = (Equal)

AI Explanation

In SNOBOL, the equal sign operator is used for pattern matching operations. It compares patterns and strings to determine whether a match exists.

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Q17

In SNOBOL, control flow is achieved through the ________________ statement.

A) Switch
B) Go to Field
C) If Else
D) For Loop

AI Explanation

SNOBOL controls program flow using the Go to field associated with statements. It allows execution to branch to different parts of the program based on conditions.

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Q18

FORTRAN IV was released in _________ and became the most popular language of its time.

A) 1963
B) 1961
C) 1960
D) 1962

AI Explanation

FORTRAN IV was released in 1963 and became one of the most widely used programming languages of its era. It improved upon earlier FORTRAN versions with additional features and standardization.

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Q19

If z = '10' and x = 5 * -z + '10.6' The what would be the resultant value of x in SNOBOL4?

A) 39.4
B) -30.0
C) 30.0
D) -39.4

AI Explanation

In SNOBOL4, z='10' is converted for arithmetic use, so 5 * -10 gives -50 and adding '10.6' results in -39.4. Therefore, the resultant value of x is -39.4.