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Question 1
a) Provide three advantages of using optical fiber. b) Distinguish between "Direct Sequence Modulation" and "Frequency Hopping" c) Decribe the purpose of using "Straight-Through" cable and "Cross-over" cable. d) Briefly explain the role of the "session and transport layer" of the OSI.
Question 2
a) The IP gives a number of core functions and associated procedures to carry out the several harmonizing functions. What are three main functions of IP, provide a brief description about each function. b) i) Describe what Network Address Translation (NAT) is? ii) Why is NAT used? c) Give three advantages and three disadvantages of NAT. d) Which TCP/IP utility will be used to evaluate the path taken by messages from workstation to a destination?
Who are the individuals who cause these security problems? Many unauthorized people who cause network security problems for obtaining information about the other users and causi
Discuss how developers should apply the following countermeasures to improve the security of their code:
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UDP- DATAGRAM TRANSPORT SERVICE INTRODUCTION: UDP is the one of the transport protocols in TCP/IP protocol suite. UDP protocol accepts applications on the computers to
Problem (a) Give two reasons for companies to implement security measures. (b) What is the regulatory expectation regarding i. healthcare information, ii. financial
Advantages and Disadvantage of Packet Filtering firewall Advantages One screening router can help protect entire network One key advantage of packet filter
Risk Control Strategies Once the ranked vulnerability risk worksheet has created, they should choose one of following 4 strategies to control each risk: •Apply safeguards which
Produce a short report of your experiences in installing and using PGP. The report should be written in the form of a journal that contains at least the following items: A de
FRAME FORMAT AND ERROR DETECTION The changed frame format also adds CRC. If there is an error happened in frame, then it typically causes receiver to removed frame. The frame
With explain the encryption model the help of diagram. Symmetric cipher model uses the secret-key or a single-key for encryption/decryption purposes. It employs a symmetric encr
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