COMPUTER STUDIES QUESTIONS WITH ANSWERS
State the role of each of the following data communication devices:repeater and router
(b) Figure 3 shows a network based on the bus topology.
(i) Identify the component labelled P. (ii) State the function of the component labelled P. (c) Students of Neema Secondary School formed an environmental club with a goal of taking part in environmental conservation activities. Outline three ways in which they can use the internet to achieve this goal. (d) (i) A company has three branches A, B and C where A is the headquarter. The local area network (LAN) at A is directly connected to the LAN at B and directly to the LAN at C. Explain two benefits of having the LAN at B also directly connected to the LAN at C. (4 marks) (ii) State three ways in which a company can protect its computer network from hackers.
(a) (i) Repeater
(ii) Terminator in a backbone is used to prevent data signal from bouncing back/absorb signals. (c) Use of internet in environmental conservation club
0 Comments
With the aid of a diagram. describe time sharing mode as used in computer data processing.
(b) A company’s management has opted to use computers to process data. State four factors that the management needs to consider when selecting the company data processing mode.
(c) Explain the purpose of each of the following in system documentation: (î) user manual; (ii) sample data: (iii) table descriptions.
RESPONSES
(a) Time-sharing mode
This is a processing mode in which a central processor serves two or more users with different requirements. The processor time is divided equally among the tasks in the queue. A user whose task requirements are more than is apportioned is send back to the queue. For example, four jobs requiring times t1, t2, t3 and t4 to complete is apportioned equal time in each round until when they are done.
(b) Factors to consider when selecting data processing mode
State two advantages of using low level programming languages.(b) Other than flowcharts, state three tools that can be used to present an algorithm.
|
Categories
All
Archives
December 2024
|
We Would Love to Have You Visit Soon! |
Hours24 HR Service
|
Telephone0728 450425
|
|
8-4-4 materialsLevels
Subjects
|
cbc materialsE.C.D.E
Lower Primary
Upper Primary
Lower Secondary
Upper Secondary
|
teacher support
Other Blogs
|