1.  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

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

(a) macro
(b) conditional compliclation
(c) in type checking
(d) including load file

3. Piggy backing is a technique for

(a) Flow control
(b) Sequence
(c) Acknowledgement                                                                              
(d) retransmition

Answer : (c)

4.OLE is used in

(a) inter connection in unix                                                                              
(b) interconnection in WINDOWS
(c) interconnection in WINDOWS NT

 5. Which of the following involves context switch,

(a) system call
(b) priviliged instruction
(c) floating poitnt exception
(d) all the above
(e) none of the above

Answer : (a)

6. Type duplicates of a row in a table customer with non uniform key field customer number you can see

(a) delete from costomer where customer number exists ( select distinct customer number from customer having count )
(b) delete customer a where customer number in b rowid
(c) delete customer a where custermor number in ( select customer number from customer a, customer b )
(d) none of the above

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

(a) -128
(b) -255
(c) -127
(d) 0

8. There is an employer table with key fields as employer number data in every n'th row are needed for a simple following queries will get required results.

(a) select A employee number from employee A , where exists from employee B where A employee no. >= B employee having (count(*) mod n)=0
(b) select employee number from employe A, employe B where A employe number>=B employ number group by employee number having(count(*) mod n=0 )
(c) both (a) & (b)
(d) none of the above

9. Semaphore is used for

(a) synchronization
(b) dead-lock avoidence
(c) box
(d) none

Answer : (a)

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

(a)11
(b)16                                                                                                            
(c)22
(d) 24

Answer : (b)

11. 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

Answer : (a)

12. Macros and function are related in what aspect?

(a)recursion
(b)varying no of arguments
(c)hypochecking
(d)type declaration

13. In OST, terminal emulation is done in

(a) sessions layer
(b) application layer
(c) presentation layer
(d) transport layer

Answer : (b)

14. A merchant sells an item at a 20 percent discount. but still makes a gross profit of 20 percent of the cost. What percent of cost would be gross profit on the item have been if it had been sold without the discount?

(a)   20%        (b)   40%    (c)   50%      (d)   60%     (e)  66.6%
   

Answer : (c) 50%

15. At a special sale, 5 tickets can be purchased for the price of 3 tickets. If 5 tickets are purchased at the sale, the amount saved will be what percent of the original price of the 5 tickets?

(a)20%      (b)33.3%      (c)40%         (d)60%         (e)66.6%

Answer : (c)40%