22.In which layer are routers used

Ans. In network layer

23.In which layer are packets formed ( in network layer )

24.heap ( priority queue )

25.copy constructor ( constant reference )


26.Which of the following sorting algorithem has average sorting behavior --
       Bubble sort,merge sort,heap sort,exchange sort

Ans. Heap sort

27.In binary search tree which traversal is used for getting ascending order values--Inorder ,post order,preorder

Ans.Inorder

28.What are device drivers used for

Ans.To provide software for enabling the hardware


29. Irrevalent to unix command ( getty)


30.What is fork command in unix

Ans. System call used to create process



31.What is make command in unix

Ans. Used forcreation of more than one file


32.In unix .profile contains

Ans. Start up program


33.In unix echo is used for ( answer C)


34.In unix 'ls 'stores contents in

Ans.inode block

                                                                                                     NEXT