1. The DNS name space is divided into non overlapping ……………

(A) regions
(B) zones 
(C) divisions
(D) blocks

2. Which of the following is required to communicate between two computers?

(A) communications software
(B) protocol
(C) communication hardware
(D) all of above including access to transmission medium

3. Which of the following routing algorithm takes into account the current network load?

(A) broadcast
(B) shortest path
(C) flooding
(D) distance vector routing

4. The physical layer is responsible for

(A) line coding
(B) channel coding
(C) modulation
(D) all of the mentioned

5. An endpoint of an inter-process communication flow across a computer network is called

(A) socket
(B) pipe
(C) port
(D) none of the above

6. The method of Broadcast routing in which each packet contains either a list of destinations or a bit map indicating the desired destinations is ……………….

(A) Reverse Path forwarding
(B) Spanning tree
(C) Multidestination
(D) Flooding

7. A .......... line considered as a fast WAN link, transmits at 1.5 Mbps, or 1 million bits per second. 

(A) L1
(B) F1
(C) W1
(D) T1

8. Terminals are required for ……………..

(A) real-time, time sharing & message switching 
(B) real time, time-sharing & distributed message processing
(C) real time, distributed processing & manager inquiry
(D) real-time, batch processing & time-sharing

9. Which of the following OSI layers correspond to TCP/IP's application layer?

(A) Application
(B) Presentation
(C) Session
(D) All of the above

10. How many OSI layers are covered in the X.25 standard?

(A) Two
(B) Three
(C) Seven
(D) Six