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QUESTION
a) "Two of the key attributes of an enterprise network is that it have to be multi-platform and multisite."
Decribe what you understand by this statement.
b) A logical network diagram is the deliverable at the end of the Needs Analysis stage in network planning. Illustrate the different phases in this stage.
c) Describe the following in relation to redundancy:i) RAID Level 0+1 ii) Differential backupiii) Level 3 UPS
d) In terms of performance, consider a network with an MTBF of 3000 Hours and MTTR of 2 Hours:
i) Evaluate the percentage availability of the network.ii) Evaluate the percentage reliability of such a network over a one-year period.iii) Determine the average throughput between two hosts given that the RTT for a 32 bytes ICMP request-reply is 1 millisecond and that for a 1500 bytes ICMP request-reply is 6 milliseconds.
QUESTION (a) Compare and contrast phishing and pharming attacks (b) Nowadays, web defacement may not always be visual (i) Explain web defacement (ii) What is the main
MegaCorp INC. is a large manufacturing firm that operates 5 factories in Dallas, 4 factories in Los Angeles, and 5 factories in Albany, New York. It operates a tightly connected
Problem: (a) Use a simple example to explain what is meant by a finite state machine. (b) Describe the time limit problem in an interrupt-driven system. (c) A certain m
QUESTION a) Consider the speed of propagation of an electrical signal is same to 2x10 8 m/s, evaluate the ratio of the propagation delay to the transmit time for the given typ
Data Classification and Management Corporate and military organizations use a several of classification schemes. Information owners are responsible for classifying information a
FRAGMENTATION AND PATH MTU IPv6 source is responsible for fragmentation. Routers simply drop datagrams bigger than network MTU. So source have to fragment datagram to arrive d
Bridges perform both in the data link layers and physical of LANs of same kind. They split a bigger network in to smaller segments. They have logic that accept them to store the
Routers They transfer packets among multiple interconnected network machines (i.e. LANs of different kind). They perform in the data link, physical and network layers. They ha
Question (a) For the bit stream 010011, show the waveforms for each of the code indicated. Consider that the signal level for NRZ-L for mark is positive; the signal level for t
Question : Environmental Accounting is a means for businesses to fulfill their responsibilities for accountability to stakeholders. (a) What do you understand by Environment
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