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Suppose AES (or any block cipher) is used to encrypt data. Which mode of encryption covered in class is best suited for each of the following two scenarios and why? If more than one mode is suitable, pick one and explain why.
a. Streaming video between a server and client.
b. Disk encryption on a backup server storing system log files where the files are individually encrypted with one key used across all files. In addition, answer the following: Consider the first block of each encrypted file and the fact that the same key was used, what is the implication of this?
Point out the disadvantages of Ring Topology. The drawbacks of ring topologies are: a. It is considerably complex to install and reconfigure ring topology b. Media failur
Higher bandwidth Fibre optic cable an support dramatically higher bandwidths than either twisted pair or coaxial cable currently data rates and bandwidth utilizatio
What are the Call routers Call routers A, B, C, D, and E. There are ten potential lines: AB, AC, AD, AE, BC, BD, BE, CD, CE, and DE. Each of these lines has four possibilities
stop and wait arq
Define the term - public knowledge information It is essential to distinguish between public knowledge information and the more detailed pieces of information relating to spec
10Base2 an Ethernet term meaning a maximum transmitting rate of 10 Megabits per second that uses baseband signaling, with a contiguous cable segment length of 200 meters (185mts).
Identify the 3 major functions at layer 3 of the OSI model Ans) Layer three explains the path, forwards the packet and executes software / logical addressing.
What is data encapsulation? Data encapsulation is the method of breaking down information into smaller manageable chunks before it is transferred across the network. It is also
Hardware Cost It indicates to the cost concerned in the functioning of an interconnection network. It comprises the cost of arbiter unit, connectors, switches, interface logic
1. A low voltage digital device has a low state of 0 V and a high state of 1.8 V. It generates a signal train of high pulses at a rate of 1 MHz, these pulses having a 10 ns width a
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