Network-Layer

Question 1

A subnet has been assigned a subnet mask of 255.255.255.192. What is the maximum number of hosts that can belong to this subnet?

A
14
B
30
C
62
D
126
       Computer-Networks       Network-Layer       GATE 2004-IT
Question 1 Explanation: 
Maximum no. of hosts = 2(no. of bits in HID) - 2
= 26- 2
= 64 - 2
= 62
Question 2

A host is connected to a Department network which is part of a University network. The University network, in turn, is part of the Internet. The largest network in which the Ethernet address of the host is unique is:

A
the subnet to which the host belongs
B
the Department network
C
the University network
D
the Internet
       Computer-Networks       Network-Layer       GATE 2004-IT
Question 2 Explanation: 
The answer is option (D), in a specified LAN technology - Ethernet is mentioned here. So, MAC addresses will be specifically taken as physical address which is unique in the entire world.
Question 3

In TCP, a unique sequence number is assigned to each

A
byte
B
word
C
segment
D
message
       Computer-Networks       Network-Layer       GATE 2004-IT
Question 3 Explanation: 
In TCP, a unique sequence number is assigned to each byte.
Question 4

Which of the following objects can be used in expressions and scriplets in JSP (Java Server Pages) without explicitly declaring them?

A
session and request only
B
request and response only
C
response and session only
D
session, request and response
       Computer-Networks       Network-Layer       GATE 2004-IT
Question 4 Explanation: 
Note: Out of syllabus.
Question 5

Consider a 10 Mbps token ring LAN with a ring latency of 400 µs. A host that needs to transmit seizes the token. Then it sends a frame of 1000 bytes, removes the frame after it has circulated all around the ring, and finally releases the token. This process is repeated for every frame. Assuming that only a single host wishes to transmit, the effective data rate is

A
1Mbps
B
2Mbps
C
5Mbps
D
6Mbps
       Computer-Networks       Network-Layer       GATE 2004-IT
Question 5 Explanation: 
Note: Out of syllabus.
There are 5 questions to complete.

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