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Q. What is Aspects of Security?
- Security Attack: Any action whichcompromises the security of information owned by an organization.
- Security Mechanism: A mechanism that is designed to prevent, detect or recover from a security attack.
- Security Service: A service that enhances the security of [information] systems and the information transfers of an organization. The services are planned to counter security attacks and they make use of one or more security mechanisms to provide the service.
Q. Example on TCP numbering? Envision a TCP connection is transferring a file of 6000 bytes. The first byte is numbered 10010. What are the sequence numbers for every seg
The steps of forwarding the packets of information is known routing. The information about receivers is saved in routing tables. Note that several entries have same next hop. It is
Q. What is Network Address? Network Address First address in the block, assigned to the organization Defines the network itself and cannot be assigned to a host
Transition Phases A PPP connection goes through phases which can be shown in a transition phase . Dead: In the dead phase the link is not being used. There is no ac
What is the difference between routable and non- routable protocols? Ans) Routable protocols can work with a router and can be used to build huge networks. Non-Routable protocol
What does the following sequence of commands accomplish? router igrp 71 network 10.0.0.0 router igrp 109 network 172.68.7.0 Ans) It isolates network 10.0.0.0 and 172.68.7.0 and
What are the features of star and ring topology The three networks have following features: star: best case is = 2, average case is = 2, worst case is = 2 ring: best case
When the computers on the network basically listen and receive the signal, they are referred to as passive due to they don't amplify the signal in any way.
Question 1 What is bandwidth? >>What is the bandwidth of a) Telephone signal b) Commercial radio broa
details of delta routing??
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