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Problem (a) The IEEE 802 series of standards describe both the Physical and Data Link layers of their respective technologies. Two important standards are 802.3 and 802.5, respectively known as CSMA/CD (Ethernet) and Token Ring.
i. Explain how CSMA/CD operates and describe how Ethernet deals with collisions.
ii. Give the structure of a typical Token Ring frame and explain how communication is effected in a Token Ring Network.
Problem (b) A datagram of 3000 bytes has to travel over a network with a MTU size of 1000 bytes. Explain how fragmentation can be used to solve this problem.
You should give the value of the 3 key fields used in fragmentation for each fragment created.
Problem (c) Nowadays many companies are shifting towards the IEEE 802.11x standard for extending their network.
i. Outline two popular flavours of this wireless standard. Elaborate on the operating frequency, range and speed of each flavour.
ii. What are the two modes of operation of this standard and explain the difference between the two.
iii. Mention one security issue with this wireless technology and explain how this issue can be addressed.
(a) (i) Bob has public RSA key (n = 77, e = 7). Show that Bob's private key is (d = 43). (ii) Alice wants to send the message m = 13 to Bob. She encrypts the message usi
Five years ago, Calgary Kids' Cloth Ltd was just a small retail store in downtown Calgary. The company started their own factory in SE Calgary to produce outdoor clothes for kids.
Problem 1: Discuss how TWO of the following gurus have contributed to the Quality Movement, highlighting the major points of their philosophies: (a) Edward Deming (b) Jose
The Security Systems Development Life Cycle (SecSDLC) The same phases which is used in traditional SDLC can be adapted to support specialized implementation of IS project,At its
ARP RESPONSES Let's search out how does a computer know whether an incoming frame have an ARP message. The type field in the frame header defines that the frame contain an ARP
Incident Response: Complete the following sections as identified from your Incident Response template (in MS Word format): Update the table of contents (autogenerated) Separate
algorithm on simple intrest
Problem : (a) Provide one possible classification of PCA, ART, RBF, and Fuzzy ARTMAP networks. (b) Describe in detail the characteristics of Radial Basis Function Neural Net
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
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.
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