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QUESTION :
a) A datagram of 3000 bytes has to travel over a network with a MTU size of 1000 bytes. Describe how fragmentation can be used to solve this problem. You should provide the value of the 3 key fields used in fragmentation for each fragment created.
b) Ethernet has grown in popularity in the recent years and is now widely used in LANs. Give reasons for the success behind Ethernet.
c) Ethernet uses CSMA/CD. Explain the features behind CSMA/CD.
d) A repeater is a physical-layer device generally used in an Ethernet network. List the features of a repeater.
e) Consider you have to recommend someone to build a network. Would you recommend him to use a repeater? Illustrate your answer giving your reasons, specifying any other device that will be used instead.
Improving domain blacklisting: Current domain blacklisting techniques are not very effective as spammers keep replacing blacklisted domains with newly registered domains. Also
Many applications are vulnerable to intrusion attacks and can provide misleading reports about misbehaving nodes. Some of the mechanisms under such a category include the Bayesian
Benchmarking An alternative approach to risk management is Benchmarking. It is process of seeking out and studying practices in other organizations which one’s own organization de
Sometimes the special character may see in data and as a part of data they will be misinterpreted as packet data. The solution to this cause is Byte stuffing. In general to
The "Big Red Rocks" (BRR) mining company is based and operates in Western Australia. They are primarily an iron ore miner, but they also produce electricity through tidal power to
In the e-mail system, where the e-mail messages are saved and why? E-mail messages are saved in user’s private electronic mailbox. A mailbox refers to a local/domestic hard drive c
Problem 1: Show what are the benefits of project quality management? • Customer satisfaction • Reduced cost • Increased competitiveness • Fulfilment of social and economic r
QUESTION (a) Hashing and salting is commonly used as password storage techniques for most applications. Describe how hashing and salting enable secure storage of password (b
every time i connect to WIFI the UC goes directly to 100% then i doesn''t want to come down. what shall i do ?
Question 1 (a) Explain briefly the following terms as used in network security: (i) Denial of service (DoS) attack (ii) Birthday attack (iii) DeMilitarized Zone
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