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QUESTION:
a) Below is a capture of an Ethernet II frame which has an IPv4 packet and a segment. Provide the source MAC address in hexadecimal; the source IP address, the length, and the header checksum of the packet in decimal; the source port number in decimal and thus deduce the application layer protocol and whether this capture relates to a response or request message.
00 13 02 4a 88 97 00 15 56 3a 4c 79 08 00 45 0000 4c ae 91 40 00 3c 06 01 9b ca 7b 02 1a c0 a801 42 00 19 04 35 aa 36 09 bb e5 30 36 00 50 1840 b0 05 fa 00 00 32 35 30 20 6f 6b 3a 20 20 4d
b) A company occupies 3 floors of a building plus the basement. Each floor is occupied by one department and adds the office of one senior manager responsible for each department. About 30 PCs having internet access are expected on each floor. The basement accommodates various server machines. For security reasons the senior managers should be accessible from the other machines only via a firewall router. The company uses a private internal network: 192.168.1.0./24. The company has an ADSL connection to the Internet. As part of this arrangement the ISP issues the company with a single public Internet address: 202.123.21.144.
Show a full network diagram for the company and make sure you identify any network devices, transmission technology and media. You have to give the IP, subnet mask and gateway addresses for all devices and servers that you find pertinent to your design. You have to also devise a scheme to allow the single public IP address to be shared among the whole staff and give special server configurations to meet company's goals. Provide the network configuration for 1 staff PC and 1 senior manager PC from each department.
IPV6 DATAGRAM FORMAT It is given in the figure below:
A digital signature is a stamp on the data, which is unique and very hard to forge. A digital signature has 2 steps and creates 2 things from the security perspective. STEP 1
What is the use of it
COLLISION: The receiver can get simultaneous requests, which gives in collision at receivers and both service lost and in this way no transmitter accepts reservations and both use
QUESTION Testing of a Business Continuity Plan (BCP) does not need to be costly or to interrupt the daily operations of the business. The result of the test should also be look
ADDRESS RESOLUTION WITH CLOSED-FORM COMPUTATION For networks use reliable addressing, it is possible to select an address that creates closed-form address resolution possible.
Bridges perform both in the data link layers and physical of LANs of same kind. They split a bigger network in to smaller segments. They have logic that accept them to store the
Information and Network Security Part 1- Recovery of an encrypted `word' using a forward search attack. Complete and correct summary for part 1. Adequately commented, clea
Question: (i) ‘Implementation' is a critical stage of the Systems Development Life Cycle. Show the four approaches which are commonly used to implement information systems in
what are the participant of marketing channal?
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