Tuesday, October 21, 2014

Placement Paper - Netwoking



1. A station in a network forwards incoming packets by placing them on its shortest output queue. What routing algorithm is being used?
A.
hot potato routing
B.
flooding
C.
static routing
D.
delta routing

2.
Frames from one LAN can be transmitted to another LAN via the device
A.
Router
B.

Bridge

C.
Repeater
D.
Modem

3.Which of the following condition is used to transmit two packets over a medium at the same time?
A.
Contention
B.

Collision

C.
Synchronous
D.
Asynchronous

4.What are the most commonly used transmission speeds in BPS used in data communication?
A.
300
B.
1200
C.
2400
D.
9600

5. Which of the following is used for modulation and demodulation?
A.
modem
B.
protocols
C.
gateway
D.
multiplexer

6.Which of the following is not a disadvantage of wireless LAN?
A.
Slower data transmission
B.
higher error rate
C.
interference of transmissions from different computers
D.

All of the above


7.The Internet Control Message Protocol (ICMP)
A.
allows gateways to send error a control messages to other gateways or hosts
B.
provides communication between the Internet Protocol Software on one machine and the Internet Protocol Software on another
C.
reports error conditions to the original source, the source must relate errors to individual application programs and take action to correct the problem
D.

All of the above


8.The term 'duplex' refers to the ability of the data receiving stations to echo back a confirming message to the sender. In full duplex data transmission, both the sender and the receiver
A.
cannot talk at once
B.
can receive and send data simultaneously
C.
can send or receive data one at a time
D.
can do one way data transmission only

9. 
How many hosts are attached to each of the local area networks at your site?
A.
128
B.
254
C.
256
D.
64

10.Which of the following technique is used for fragment?
A.
a technique used in best-effort delivery systems to avoid endlessly looping packets

B.

a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame
C.

one of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size

D.

All of the above




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