Table of Content

UGC NET Computer Science : June 2012 – Paper 2 (Solved Papers)


Question 1
Both hosts and routers are TCP/IP protocol software. However, routers do not use protocol from all layers. The layer for which protocol software is not needed by a router is
A
Layer – 3 (Internet)
B
Layer – 5 (Application)
C
Layer – 2 (Network Interface)
D
Layer – 1 (Physical)
Question 2
In multiuser database if two users wish to update the same record at the same time, they are prevented from doing so by
A
Jamming
B
Documentation
C
Password
D
Record lock
Question 3
A binary search tree is a binary tree :
A
All of the above
B
All items in the left subtree are less than root
C
Each subtree is itself a binary search tree
D
All items in the right subtree are greater than or equal to the root
Question 4
What deletes the entire file except the file structure ?
A
ERASE
B
ZAP
C
PACK
D
DELETE
Question 5
Which command is the fastest among the following ?
A
COPY STRUCTURE TO [NEW FILE]
B
COPY FILE FILE1 FILE2
C
COPY TO [NEW FILE]
D
COPY TO MFILE-DAT DELIMITED