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(a) Outline the main interactions that take place when a user requests a valid web resource in the Address Bar of a modern web client till the resource is eventually displayed on-screen.
Your answer should include a most complete explanation of internetworking terms and concepts.
(b) In terms on network security, distinguish between the following:
i. Confidentiality and Authentication ii. Integrity and Authorization iii. Private and Public Key cryptography
(c) Describe, in reasonable detail, the process by which an electronic mail can be constructed and sent to another uniquely identifiable email recipient in another part of the world.
You should concentrate in particular on the underlying network requirements and the different protocols involved.
Recognize the two commands that copies the configuration in NVRAM to RAM Ans) a) Copy startup-config running-config b) Configure memory
Shortest path The dijkstra algorithms four steps to discover what it called the shortest path tree . a.The algorithm beings to build the tree identifying its root.
Overview of Data transmission network model A network is a combination of hardware and software that sends data from one location to another. The hardware consists of the physi
What is VRC? It is the most common and least costly mechanism for Error Detection. In VRC, a parity bit is added to each data unit so that the total number of 1s becomes even f
Describe Network Topology and VPN Network Topology refers to the layout of a computer network. It presents how devices and cables are physically laid out, as well as how they j
Other than performance issues, there could be security reasons for using something like xinetd. Make simple design in which a new version of xinetd gives a layer of security.
What is NIC and WAN? NIC is short for Network Interface Card. This is a peripheral card that is joined to a PC in order to connect to a network. Each NIC has its own MAC addres
What is packet filter? Packet filter is a standard router up to with some extra functionality. The extra functionality permits every incoming or outgoing packet to be inspected
Station Types No-transition mobility moreover stationary or moving only inside a BSS BSS-transition mobility is able to move from one BSS to another, but confined inside one
Q. Unshielded Twisted Pair - transmission media? - A most common kind suitable for both voice and data transmission - Categories are determined by chain quality - Cat 3 c
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