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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.
QUESTION (a) Which PKI (Public Key Infrastructure) model is typically favored by business organization? (b) Give one possible use of the "extensions" field of an X.509 certi
Question: Network diagrams combine with a set of systematic analysis procedures, serve to remedy the shortcomings of the Gantt chart. Explain the following terms used in the ne
ACCESS CONTROL DEVICES Successful access control system includes number of components, which depends on system’s requirements for authentication and authorization. Powerful auth
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