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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