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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.
Name the physical interfaces that PPP can be configured on a Cisco router: Ans) A. Asynchronous serial B. HSSI C. ISDN D. Synchronous serial These four of th
What is IPv6? IPv6, or Internet Protocol version 6, was developed to change IPv4. At present, IPv4 is being used to control internet traffic, butis expected to get saturated in
802.11g OFDM a) Uses OFDM with same 2.4 GHz band b) Achieves a 54-Mbps data rate c) Works with same 802.11b equipment
Q. Show the Need for Network Layer? Need for Network Layer - To solve the problem of delivery of data through several links. - Accountable for Host to Host delivery
Define Routing? The process of determining systematically hoe to forward messages toward the destination nodes based on its address is known as routing.
1. What does RIP stand for? 2. What metric does RIP use for Path Selection? 3. If the metric used by RIP exceeds this value for a route it is considered unreachable, effec
What is Synchronous TDM? In STDM, the multiplexer allocates exactly the same time slot to every device at all times, whether or not a device has anything to transmit.
Packet Cost Both distance vector and link state routing are lowest algorithms. Tow factors govern how cost is applied to packets in determines a route. Cost is a
Notice repetition of information in routing table for node 1 as given above in the figure. We can see that switch has only outgoing connection, all traffic must goes that connec
What are the disadvantages of Star Topology? The disadvantages are considered as follows: a. Needs more cable than most topologies. b. Moderately complex to install.
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