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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.
How does the POP functions? What are the advantages/benefits of IMAP over POP? POP stands for Post Office Protocol, version 3 (POP3) is one of the easiest message access protoc
Question (a) Estimate the average throughput between two hosts given that the RTT for a 100 bytes ICMP request-reply is 1 millisecond and that for a 1500 bytes is 2 millisecon
ROUTING TABLE For efficiency, information about forwarding is saved in a routing table, which is started at system initialization and must be updated as network topology modif
Network-Based IDS (NIDS) A NIDS resides on computer or appliance connected to segment of an organization’s network and looks for signs of attacks. While examining packets, a NID
IPv6 ADDRESSING IPv6 has 128-bit addresses. A 128-bit address adds network prefix and host suffix. An benefit of IPv6 addressing is that there is address classes i.e. prefix/s
Ask You have been asked by a new client to assist in setting up a new computer for her coffee shop. She has just purchased the newest Apple computer from an online site. Should wou
INTRODUCTION TO RISK MANAGEMENT Risk management is the procedure of identifying and controlling risks facing an organization. Risk management is the discipline which is employed
ENCAPSULATION Network interface layer adds IP datagram as data area in hardware frame. Hardware ignores IP datagram message format. Standards for encapsulation defines details
crack the secret message and explain how the code works. The clue is that it has something to do with the computer keyboard. J-Q-H-6 Q-E-F-Q-H-D-3-W 8-H 5-Y-3 7-W-3 9-R--D-9-J
QUESTION There are generally five factors that will influence how you respond to computer security incidents- The effect the incident has on your business Legal issue
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