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CS-68 Computer Network June-2001

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Question Paper of CS-68 Computer Network June-2001

Q l (i) Explain how the notion of layering and internetworking make the rapid growth of applications such as the WWW possible.

Ql(ii) What universal set of communications services is provide by TCP/IP?

Ql(iii) Suppose transmission channels becomes virtually error free. Is the data link layer still needed?

Ql(iv) With reference to ISO reference model, point out which layer/layers carry the following functions:

1. Text/Data Compression
2. Virtual Terminal Management
3. Connection management
4. Error free data transmission
5. Deadlock free.

Ql(v) With respect to WAN, distinguish between virtual circuit service and datagram service.

Ql(vi) What is the difference between a confirmed and unconfirmed service? For each of the following tell whether it might be a confirmed service and unconfirmed service, both nor neither:

1. Connection establishment
2. Data transmission
3. Connection release

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