Question 1

Assume that x = 5 and y = 2. Then in Java operation x + = y, the result is

Accepted Answer

The operator + = means add and assign.

Question 2

Which of the following is not a valid integer constant in C (for 16 bit)?

Accepted Answer

The range is from - 32768 to + 32767.

Question 3

Which of the following can not be used as a variable name in C?

Accepted Answer

else is not allowed as variable name in C.

Question 4

In Java it is possible to have An array of integers An array of string objects An array of arrays An array on integer and strings Which of the above are correct?

Accepted Answer

An array on integers and strings is not possible.

Question 5

Which of the following is invalid in Basic?

Accepted Answer

Two operators cannot exist together.

Question 6

Let JCOKE = 98 and LPEPSI = 42 Consider the statement IF (JCOKE - 3 * LPEPSI) 5, 6, 7 5 JCOKE = JCOKE + 5 6 JCOKE = JCOKE + 8 7 JCOKE = JCOKE + 11 The value of JCOKE after the execution of above statement will be

Accepted Answer

Since (J COKE - 3 x L PEPSI) is negative, statement 5 is executed and the result is 98 + 5 = 103.

Question 7

While selecting a memory chip the feature which should be examined is

Accepted Answer

All these characteristics are important.

Question 8

Read the following statements about files in Pascal A file is a data structure which consists of a sequence of components of the same type. The number of components in a file is variable. The components in a file can be accessed only sequentially st…

Accepted Answer

All statements are true.

Question 9

In a computer the instructions, data, intermediate and final results during processing are held in ALU.

Accepted Answer

These are not held in ALU. Only computations are done by ALU.

Question 10

Which of the following computer memories is fastest?

Accepted Answer

Cache memory has a speed of about four times the speed of main memory. It is a small high speed memory.

Question 11

Which of the following real variable names is not valid in Fortran?

Accepted Answer

Operator is not allowed.

Question 12

Which of the following is not a valid real constant in C?

Accepted Answer

Real constant must have a decimal point.

Question 13

Which of the following is not a valid variable name in C?

Accepted Answer

First character must be alphabet.

Question 14

Consider the following C program int ram float alpha, gamma ram = 6400 alpha = 0.562 gamma = alpha * ram + 1 Now consider the following statements about this program ram is an integer variable alpha, gamma are real variables *, + are arithmetic oper…

Accepted Answer

0.562 is not an integer constant.

Question 15

Computer virus can hide itself in a diskette but not in a hard disk.

Accepted Answer

Computer virus can hide in hard disk also.

Question 16

IC (instruction cycle), FC (fetch cycle) and EC (executive cycle) are related as

Accepted Answer

Instruction cycle consists of fetch and execute cycles.

Question 17

MICR stands for

Accepted Answer

Magnetic ink character recognition is used in banking.

Question 18

Binary number 1101.101 is equivalent to decimal number?

Accepted Answer

Binary .101 equals 0.625 in decimal.

Question 19

The number of storage classes in C is

Accepted Answer

C has four storage classes viz. automatic storage class, register storage class, static storage class and external storage class.

Question 20

Consider the following DO statement in Fortran 77 DO 52 N = 1, 10, 3 The number of DO loop executions in the above statement is

Accepted Answer

Do statement is executed when N = 1, 4, 7, 10, i.e., a total of 4 times.

Microprocessors Questions