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QUESTION:
(a) Below is a capture of an Ethernet II frame which contains an IPv4 packet and a TCP segment. Give the source MAC address for the frame in hexadecimal; the source IP address, the total length in bytes and the header checksum for the packet in decimal; the destination port number in decimal for the segment and hence deduce the application layer protocol this segment is destined to.
00 24 2b ec 4a cc 00 19 4b 3b f2 10 08 00 45 00 01 de 56 08 00 00 38 06 38 9e 4a 7d e6 44 c0 a8 01 0a 00 50 2c 5e 28 b6 ca f6 e1 5e 81 e8 50 18 1c 0e a1 9d 00 00
(b) Given a following information by your ISP about your newly acquired 256 kbps Frame Relay Over IP connection: Public IP: 202.123.21.0 /26
You are required to design a network layout which constitutes of a LAN having 3 subnets (with Internet connectivity) for each department in your company.
QUESTION The major decision hierarchy for disclosing security problems is if the problem is with the product owned by the business or if it is used by the business. Although th
Consider the details of the X.509 certificate shown below. a. Identify the key elements in this certificate, including the owner''s name and public key, its validity dates, the nam
You have been asked to design a Banking Network with two primary types of locations. Branches that will have 3 subnets, one /25 subnet one /26 subnet for ABMS and one /26 s
nstissc secuiryt model
Problem (a) Distinguish between passive and active attacks. (b) Give two reasons why it is important to organise security awareness programs for users. (c) Describe how
Problem (1) - Alice, Bob and Charlie have a secret key a=3, b=4, c=5, respectively. - They want to find a common secret key using Diffie-Hellan key exchange protocol (with g
A full-duplex (FDX) , accepts communication in both ways, and, unlike half-duplex, accept this to occur simultaneously. Land-line telephone networks are full-duplex, since they
Encode the following plaintext, using the Caesar cipher: LORD OF THE RINGS b) The following ciphertext jw njbh lxmn cx kanjt has been encoded usi
IDS Intrusion is a attack on information assets in which instigator attempts to gain entry into or disrupt normal system with harmful intent Incident response is an identificatio
QUESTION (a) Briefly explain the contents of the Needs Analysis, which is step in the process of network design. (b) Describe on the three ways of improving the performan
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