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Question
(a) Draw a typical hybrid star-ring topology paying attention to how the clients and switching hubs are connected.
(b) State 3 main differences between a router and a layer 2 switch.
(c) (i) List the four functional areas of Network Management. (ii) What are the two parameters monitored by a Network Management System?
(d) Explain the Building Block Design process.
(e) In terms of Performance, assuming a network with an MTBF of 2000 Hours and MTTR of 12 Hours:
(i) What do you understand by MTTR? (ii) Calculate the percentage Availability of the network. (iii) Calculate the percentage Reliability of such a network over a one-year period. (iv) What does this Reliability value mean?
(f) List the three different Management Information Base System (MIBS) modules available, giving a brief description of each.
(g) (i) Name the two methods by which a Network Management System can obtain information from SNMP?
(ii) Name three pieces of information that is included in a SNMP Trap?
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
CYCLIC REDUNDANCY CHECK (CRC) To activate a network system to check move error without increasing the amount of information in every packet another most successful method is m
Question: (a) Distinguish between a mobile agent "state" and "code". (b) Differentiate between "weak" and "strong" mobility. (c) Mobile agent systems are known to have
There are various benefits related with providing the security. They are given below, (i) Confidentiality/ Privacy (ii) Integrity (iii) Availability (iv)Authenticatio
Explain how can we achieved privacy in an e-mail system. The full form of PEM is Privacy Enhanced Mail: PEM is the internet Privacy Enhanced Mail standard adopted
(a) An opponent is using RSA with the public key {e=53, n=77}. You intercept the ciphertext C=10. (All values on this problem, including the ciphertext and the cleartext, are nume
Vulnerability Identification Specific avenues threat agents can exploit to attack an information asset are known as vulnerabilities. Examine how each threat can be generated and
Question (a) Draw a typical hybrid star-ring topology paying attention to how the clients and switching hubs are connected. (b) State 3 main differences between a router
1. We used the National Vulnerability Database. Select a recent vulnerability from that Database and analyse it from the following aspects: Criticality level Impact in
What questions should Iris ask Charlie about the new job, about Kelvin''s team, and about the future of the company?
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