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Question 1
a) Explain how CSMA/CD works. b) Describe the term "exponential back-off". c) Describe the differences between "circuit switching" and "packet switching".d) There are many good reasons why Virtual Private Network is being used.
i) Explain how VPN works. ii) Give three of those reasons.
Question 2
a) One of the five main functional areas in Network Management is "Accounting Management". Briefly describe its importance. b) Describe two approaches for the management system to obtain information from SNMP (Simple Network Management Protocol). Briefly describe each one. c) Give three advantages and three disadvantages of using centralized architecture. d) Name four goals of using clustering.
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LOG FILE MONITORS Log file monitor (LFM) is similar to NIDS. It reviews log files generated by servers, network devices, and even other IDSs for patterns and signatures. Pattern
INTRODUCTION TO PLANNING FOR SECURITY The creation of an information security program begins with creation and review of organization’s information security policies, standards,
FRAGMENTATION One method is to limit datagram size to smallest MTU of any server. IP needs fragmentation i.e. datagrams can be divided into pieces to fit in network with small
Question: (a) Distinguish between Steganograhy and Cryptography. (b) "Playfair cipher is more secure than Monoalphabetic cipher." Justify this statement. (c) Various ap
Network diagram for a mediacal care
DEPLOYMENT AND IMPLEMENTING OF AN IDS The strategy for deploying IDS should consider various factors. These factors will determine the number of administrators required to insta
POINT-TO-POINT: In Point-to-Point topology there are two kind of topologies. 1) STAR topology 2) TREE topology In star topology each and every computer is connect
(a) Show four Network Security attacks. How do they compromise security? (b) In what ways do the following devices or services contribute to security: (i) Firewall (ii) In
Information System Security 1. Write about: a. Potential Risks to Information Systems b. Factors to be addressed for making information systems more secure 2. Write about t
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