1
GATE CSE 2004
MCQ (Single Correct Answer)
+2
-0.6
A and B are the only two stations on an Ethernet. Each has a steady queue of frames to send. Both A and B attempt to transmit a frame, collide, and A wins the first backoff race. At the end of this successful transmission by A, both A and B attempt to transmit and collide. The probability that A wins the second backoff race is
A
0.5
B
0.625
C
0.75
D
1.0
2
GATE CSE 2004
MCQ (Single Correct Answer)
+1
-0.3
Which of the following is NOT true with respect to a transparent bridge and a router?
A
Both bridge and router selectively forward data packets
B
A bridge uses IP addresses while a router uses MAC addresses
C
A bridge builds up its routing table by inspecting incoming packets
D
A router can connect between a LAN and a WAN
3
GATE CSE 2004
MCQ (Single Correct Answer)
+2
-0.6
The routing table of a router is shown below: GATE CSE 2004 Computer Networks - Network Layer Question 18 English

On which interface will the router forward packets addressed to destinations 128.75.43.16 and 192.12.17.10 respectively?

A
Eth1 and Eth2
B
Eth0 and Eth2
C
Eth0 and Eth3
D
Eth1 and Eth3
4
GATE CSE 2004
MCQ (Single Correct Answer)
+2
-0.6

Consider three IP networks A, B and C. Host HA in networks A sends messages each containing 180 bytes of application data to a host HC in network C. The TCP layer prefixes a 20 byte header to the message. This passes through an intermediate network B. the maximum packet size, including 20 byte IP header, in each network is:

A : 1000 bytes
B : 100 bytes
C : 1000 bytes

The network A and B are connected through a 1 Mbps link, while B and C are connected by a 512 Kbps link (bps = bits per second).

GATE CSE 2004 Computer Networks - TCP UDP Sockets and Congestion Control Question 24 English

Assuming that the packets are correctly delivered, how many bytes, including headers, are delivered to the IP layer at the destination for one application message, in the best case? Consider only data packets.

A
200
B
220
C
240
D
260
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