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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.
Firewalls After several security related internet newsgroups started overflowing with posts it becomes clear something hand to done to help secure networks. The first
Path Layer The path layer maps services such as DS3, FDDI, and ATM into the SONET payload formal. This layer provides end to end communications signals labelling path m
The three ways to give login access to the router are by the Console port, auxiliary port, and virtual terminal (Telnet)
Sending a message to a group multicast address is known as multicasting, and its routing algorithm is known as multicast routing.
100Base-T4 Utilizing four pairs of category 3 (voice grade) UTP to transmit 100 Mbps Two pairs are bidirectional and other two are unidirectional 8B/6T (eight bin
Fiber Optic Cable A fiber optic cable is made of glass or plastic and transmits signals in the form of light pulses. An optical fiber is a thin flexible medium conducts
What is DoS? A do, or Denial-of-Service attack, is an attempt to stop users from being able to access the internet or any other network services. Such attacks might be come in
Operating system does CISCO have
SONET STS SONET defines a hierarchy of signalling levels called as STSs (Synchronous Transport Signals). Every STS level supports a certain data rate specified in megabits p
what is compurter network and types, topology, communication media
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