​​(a) (1) Explain the term search engine as used in the Internet. (2 marks)
(i) Search-engine
It is a web-based application used to locate for an item or information from world wide web.
(ii) Peter intends to download a movie from the Internet. State the three factors that may determine the total time taken to complete the download. (3 marks)
Factors that affects duration of download
​​(b) Wakulima online is an organization that runs a web based system for assisting obtain market for their farm produce. State four technological reasons that may farmer not to access the organization system.
Causes of Wakulima system’s failure
​​(c) Explain a situation when each of the following Desktop Publishing program features may be used when creating a publication:
(i) cropping; (2 marks)
​​(d) List two areas where infrared waves are used in data communication (2 marks)
Areas where infra-red radio waves are used.
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