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State the Example of security audit as case study
Linda narrates one of her experience about a security audit. She was performing a spot audit where she was checking certain systems. It was noticed that there could be systems that was not even part of the audit. The exact location on the network layout plan was found out and it was noticed that it had an extra connection to it but she could not make out by the network map where the connection lead to. Consequently, she decided to audit that system and found that it was connected to the Internet, to that company's Intranet as well as to a customer network. Still ahead, it was found that a hacker had broken into the system and replaced the system files and put them back in proper place. Nobody in the company even knew that the system had been broken into and only two people knew that it was even connected to the Internet.
Tree interconnection network Tree interconnection network(TIN)), processors are organized in a whole binary tree pattern.
Network Data Storage 1. What is the Small Computer System Interface Architecture 2. Describe the various Fibre Channel standards. 3. What is the difficulties in building
Carrier Sense Multiple Access/Collision Avoidance a) Necessary since wireless LANs cannot implement CSMA/CD b) Collision detection requires increased bandwidth requirements
State about the communications network 1) The communications network may only accept blocks of data up to a specific size. (2) Error control might be more effective with a
ICMP is used to send error and control messages. Ping uses ICMP to carry the echo-request and echo-reply.
Router(config)# interface serial1/0
RIP and IGRP are Distance Vectoring protocols that send their whole routing tables to their neighbours. In some Cisco literature, EIGRP is listed as an 'advanced distance vector
The following issues are decided by the system in the process of message passing: 1) Whether the communication link is established or not 2) Whether the receiver is ready to
Q. Describe Physical Layer in OSI layers model? Physical Layer : Controls the transmission of the actual data onto the network. It describes the electrical signals, line state
5. Suppose that frames are 1250 bytes long including 25 bytes of overhead. Also assume that ACK frame are 25 bytes long. Calculate the efficiency of Stop-and-Wait ARQ in a system t
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