A special value placed at end of items data list is called
Answer: A
Correct answer: rogue value
A rogue value is a value outside the range of the real data, placed at the end of a list to mark where it stops - a negative mark, or a name of three asterisks.
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A special quantity named in a program and its value can be changed is called
Answer: A
Correct answer: variables
A named quantity whose value may change during the run is a variable; one whose value is fixed is a constant.
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In line "550 INPUT NUM: PRINT 6.9*NUM*NUM+27" of a BASIC program, 'PRINT and INPUT' is
Answer: A
Correct answer: reserved words
PRINT and INPUT are keywords the language keeps for itself, so no program may use them as names of its own. That is what makes them reserved.
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Whole numbers from '0' and all negative numbers are classified as
Answer: A
Correct answer: integers
Zero, the positive whole numbers and the negative whole numbers together are the integers. Real numbers admit a fractional part, which integers do not.
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In high-level language Pascal, area is calculated as
Answer: A
Correct answer: Area: = Width*Length;
Pascal has no line numbers, uses := for assignment, and ends every statement with a semicolon. All three features appear in this one line.
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Loop statement which is repeated to some given number of times is classified as
Answer: B
Correct answer: FOR loop
A FOR loop repeats a fixed number of times, controlled by a counter running between stated limits. WHILE and REPEAT loops repeat until a condition changes, which may be any number of times.
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In line "100 INPUT NUM" of a BASIC program, NUM is if chosen by programmer is classified as
Answer: A
Correct answer: identifier
NUM is a name the programmer chose, which is what an identifier is. Its being chosen rather than fixed by the language is what distinguishes it from a keyword.
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Type of statement written in sequence and are repeated until conditions met is classified as
Answer: A
Correct answer: loop
Statements repeated until a condition is met form a loop. A case statement chooses among alternatives once rather than repeating.
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Size of an array is declared by
Answer: B
Correct answer: programmer
The size of an array is fixed by the programmer in its declaration, so that the translator can reserve the right amount of storage before the program runs.
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In repeat-until loop 'UNTIL Option>0 and Option<8 AND INT(Option) = Option' , INT function is classified as
Answer: B
Correct answer: function
INT takes a value and returns its integer part, so it is a function - here used inside the loop's condition to test whether Option is a whole number.
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