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Question:
(a) Explain the following terms: Information Communication Technology, Operating System and Application Software.
(b) Define what a computer is, give four anatomies of a Personal Computer and list five components of a System unit.
(c) Write short notes on the following Internet terminology:
1) Uniform Resource Locator (URL)
2) Hyper Text Transfer Protocol (http)
(d) You have been invited to attend a job interview. Explain the preparations that you would make prior to attending the interview.
(e) Describe benefits of effective communication within organisations.
Question 1: (a) (i) Radio waves are subject to several propagation problems. Name any three of them. (ii) A Wi-Fi receiver requires a signal power of 50mW to operate correc
Question An organization is planning to connect its networks to the Internet. The network is located within a four story building. A web server supporting online sales is also
Problem a) Give three reasons why traditional Network Design approach is less appropriate for many of today's networks? b) The network requires of users are organized into m
#Under what circumstances would the use of a SecSDLC be more appropriate than an SDLC?
Question: a. State briefly three reasons why computer networks are used? b. Differentiate between simplex, half-duplex and full-duplex mode of transmission. c. State any
IP DATAGRAM HEADER FORMAT: It is given in the figure below: In the table: VERS denotes the version of IP. H.LEN denotes the header length in units of
(a) Mention the five main security services. (b) What is a passive attack? Give an example of passive attack? (c) What four types of active attacks and mention their respecti
Example : UCSF Medical Center In the year 2002, the University of California, San Francisco (UCSF) Medical Center received an email message from someone who claimed to be a doct
DIRECT INDEXING It is less usually known method. It is possible only is cases where protocols address are given from a compact range. In the diagram below an example of direct
Hashing is the transformation of a string of characters into a generally shorter fixed-length key or a value that presents the original string. Hashing is used to index and retri
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