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Question:
a) Give two reasons why the building-block approach is favoured to the traditional network design approach.
b) With reference to network monitoring parameters, distinguish between:
i) Logical network statisticsii) Physical network statistics
c) Two important system performance parameters are: Availability and Reliability.
i) Describe the difference between those two parameters.
ii) Determine the MTTR to the nearest hour of a system with an availability of 99% with an average of 2 failures per year.
iii) Evaluate the MTBF to the nearest hour if the reliability of a system needs to be 99.99% over 30 days.
d) Give three steps that will be taken to reduce network management costs.
e) Using all of 6 physical disks, sketch the possible arrays that you will implement in RAID 0+1 and showing how stripes A, B, C, D, E and F are written to the arrays. Provide the total effective size of each array if each disk has a size of 20 GB.
RSA Block and Vernam Stream Ciphers This assignment involves writing two small Python scripts and a report. Before you start you must download the ?le summarysheets.zip from th
(a) Describe RSA encryption. (b) For an RSA encryption the values of the primes are: p=29, q=31. select e=11, evaluate the public and private keys. (c) How can RSA be used fo
SDLC Systems development life cycle (SDLC) is process of developing information systems through analysis, design, investigation, implementation and maintenance. SDLC is called as
The project will be involving a design and a report of which explain the simulation and how it functions. The aim of the project is to help the administrators and staff at the war
Transposition technique
Question (a) Name 3 popular electronic mail access protocols? (b) i. What is DNS? ii. Briefly, describe what it does and how it works? iii. Why does DNS use a dist
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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
Netfilter Firewall Netfilter is the popular name for the packet filtering system installed by default in the Linux kernel. The filtering system can be used as a very effective
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