Computer Science MCQs With Answer by General knowledge Solutions

Computer Science MCQs With Answer  by  General knowledge Solutions

1) What is an array? 
 Ans: An array is a group of data of the same data type stored in successive storage locations.

 2)How are elements of an array accessed? 
 Ans: Elements of an array are accessed using subscripts.


3)What is a subscript? 
  Ans:  A subscript or an index is a positive integer value that identifies the storage position of an element in the array.

4)Which is the smallest subscript? 
Ans: 0


5)How many subscripts does a one and two dimensional array have?
Ans:  one dimensional array has one subscript and a two dimensional array has two subscripts( row and a column subscript).

6)Write the syntax for declaring a one dimensional array. 
 Ans:  syntax:datatype arrayname [size];

7) Write the syntax for declaring a two dimensional array.
 Ans: Syntax: datatype arrayname [row size] [column size];


8) What do you mean by initializing an array? 
Ans: Initializing of an array means storing data in to an array at the design time.

9) What is a string?
Ans: A string is a sequence of one or more characters.


10) Write the syntax for declaration of a string.
  Ans: syntax: char arrayname [size]; Ex: char str [100];


11) State the difference between a null character and a null sting.
   Ans:  A null character indicates the end of the string.
 A null string is a string with zero characters or no characters.