Latest HCL Interview Questions And Answers

1. Which of the following involves context switch,

a) System call

b) privileged instruction

c) floating point exception

d) all the above

e) none of the above

2. In OST, terminal emulation is done in

a) Sessions layer

b) application layer

c) presentation layer

d) transport layer

3. For a  25MHz processor , what is the time taken by the instruction which needs 3 clock cycles,

a)120 nano secs

b)120 micro secs

c)75 nano secs

d)75 micro secs

4. For 1 MB memory, the  number of address lines required,

a)11

b)16

c)22

d) 24

5. Semaphore is used for

a) synchronization

b) dead-lock avoidence

c) box

d) none

6. Which holds true for the following statement

class c: public A, public B

a) 2 member in class A, B should not have same name

b) 2 member in class A, C should not have same name

c) both

d) none

7.Preproconia.. does not do which one of the following

a) macro

b) conditional compliclation

c) in type checking

d) including load file

8. Piggy backing is a technique for

a) Flow control

b) Sequence

c) Acknowledgement

d) retransmition

9. Find the output for the following C program

f=(x>y)?x:y

a) f points to max of x and y

b) f points to min of x and y

c)error

10. In signed magnitude notation what is the minimum value that can be represented with 8 bits

a) -128

b) -255

c) -127

d) 0







ANSWERS

1.  (a) System Call

2. (b) Application Layer

3.  (a) 120 nanoseconds

4.  (b) 16

5. (a) Synchronization

6. (a) 2 member in class A, B should not have same name

7. (c) In type checking

8. (c) Acknowledgement

9. (a) f points to max of x and y

10. (a)-128