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Computer Networks
1. Differentiate WAN and LAN.
2. Describe the TCP/IP Reference Model with diagram.
3. Explain Circuit switching and message switching.
4. List the functions of (i) Routers (iii) Bridges.
5. State the terms Error Detection and Correction with respect to Data Transmission. Also describe the following concepts with respect to Error Detection and Correction:
a. Parity Bits b. Cyclic Redundancy Check
6. Write short notes on
(i) Non-Persistent CSMA (ii) 1-Persistent CSMA (iii) P - Persistent CSMA.
Q. Show the Flow characteristics? Flow characteristics Reliability - if lacking means that packets or ACKs are lost - more important with FTP, SMTP than with audio
Question: a) Consider the following MIP scenario. Quite a few enterprise networks use private addresses and NAPT for the communication to the Internet. i. Discu
Reverse Address Resolution Protocol is used to get a layer 3 address if the MAC address is called which then facilitates the loading of the O/S.
what's the difference among Symmetric and Asymmetric cryptosystem?
Q. Describe about Cryptography? - Some media cannot be protected from unauthorized reception (or interception) - Encryption involves transforming the original information in
State in brief about the Graceful degradation With FDMA or TDMA, a fixed number of users can concurrently access the system. Though, with CDMA, as more user concurrently access
Challenge Handshake Authentication Protocols (CHAP) CHAP as its an implies implements a form of authentication that requires a challenge and a response. A CHAP authenticator
Internet Mail Access Protocol Another mail access protocols is internet mail access protocols version 4 ( IMAP4). IMAP4 is similar to POP3 but it has more feature
Hierarchy of DNS Servers DNS uses a large number of server organized in hierarchical fashion and distribution around the world. No single DNS server has all of the mappin
As discussed in the earlier section each computer linked to the Internet has a unique address. Let's assume your IP address is 1.2.3.4 & you wish to send a message to the computer
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