Unit Test 2 Gr 10 C D.docx
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The document provides information about a curriculum unit test for an ICT grade 10 class. It includes general instructions, questions, and maximum marks for each question. The questions cover topics like systems development life cycles, implementation methods for new computer systems, testing data types, and database validation rules.
![CAMBRIDGE CURRICULUM
UNIT TEST 2 January 2022
INFORMATION AND COMMUNICATION TECHNOLOGY GRADE 10
Date: 27-01-22 Time: 45 Minutes.
Name: ______________________________ Roll No___________ Sec______
General Instructions: -
1. All questions are compulsory.
2. Marks for each question is indicated in the bracket [ ].
3. Please check that the questions are printed on all pages.
This question paper consists of 2 printed pages.
Maximum Marks: 20 Marks Obtained: _______
QuestionNo. 1 2 3 4 5 6 7 8 9 10 11
Marks
Obtained
Maximum
Marks](https://image.slidesharecdn.com/unittest2gr10cd-220911061057-56f80955/85/Unit-Test-2-Gr-10-C-D-docx-1-320.jpg)
Unit Test 2 Gr 10 C D.docx
- 1. CAMBRIDGE CURRICULUM UNIT TEST 2 January 2022 INFORMATION AND COMMUNICATION TECHNOLOGY GRADE 10 Date: 27-01-22 Time: 45 Minutes. Name: ______________________________ Roll No___________ Sec______ General Instructions: - 1. All questions are compulsory. 2. Marks for each question is indicated in the bracket [ ]. 3. Please check that the questions are printed on all pages. This question paper consists of 2 printed pages. Maximum Marks: 20 Marks Obtained: _______ QuestionNo. 1 2 3 4 5 6 7 8 9 10 11 Marks Obtained Maximum Marks
- 2. Answer All the Questions 1 The systems life cycle is shown. The Implementation, Design, Evaluation, Documentation, Development and testing stages are missing. Write these stages into their correct places. 2 2 Tawara High School has developed a new computerized system to timetable lessons and examinations. The school needs the new system to be in use before the start of the new school year. The school is planning to implement the new system using either direct changeover or parallel running. (a) Discuss the advantages and disadvantages of using direct changeover compared with parallel running as a method of implementing the system. In your answer name the method you would use, giving four reasons for your choice. Max three from: Advantages Benefits are immediate whereas in parallel it takes time to fully implement Costs are reduced as there is only one system to maintain but in parallel there are two systems and two sets of workers Data only needs to be entered into one system but with parallel running data has to be entered into two systems therefore is more time consuming Less possibility of bugs as the system will have been fully tested Disadvantages If the system fails there is no backup but in parallel running if the system fails then the old system is still operational//risk of loss of data 4
- 3. Staff have to be trained on the new system as it is implemented with parallel it is possible to train staff gradually. 3 During the analysis stage for a new computer system, the systems analyst could examine existing documents. Name two other methods the systems analyst could use to research the current system. Give one benefit of each. Method1................................................................................................ Benefit................................................................................................ .......................................................................................................... Method2................................................................................................ Benefit................................................................................................ .......................................................................................................... Interview Benefit one from: The useris more open and honest with the answers Questions can be added to/extended Questions can be modified Can see body language/facial expressions Questionnaire Benefit one from: Faster to complete all questionnaires Cheaper to produce questionnaires than pay/employ an interviewer Individuals can remain anonymous therefore they are more truthful More people can answer the questionnaire than can be interviewed They can fill it in in their own time 2 4 When the new computer system has been produced, it will need to be tested. There are three types of test data that can be used to test a system, normal, abnormal and extreme. (a) Explain what is meant by normal, abnormal and extreme test data. Normal ............................................................................................................ ............................................................................................................ Abnormal ............................................................................................................ ............................................................................................................ Extreme 3
- 4. ............................................................................................................ ............................................................................................................ Normal Data is within the range of acceptability Abnormal One from: Data outside the range of acceptability Data that is of an incorrect type Extreme Data that is on the boundary/limit of acceptability 5 A teacher is creating a spreadsheet that will record the grades students achieved in recent tests and compare the average grades of these tests with the students forecast grades. The grading the teacher is using awards 1 for the highest grade down to 10 for the lowest. The teacher has created a validation rule on the grade entered. Give examples of data used to test the validation rule. Your answers for abnormal test data must be for a different reason in each case. Type of test data Example of test data Normal Abnormal Abnormal Extreme One from: Normal data: Any integer between 1 and 10 Two from: (must be a different type)Abnormal data: Any number outside the range/alphabetic/symbol/negative number/decimal number One from: Extreme: 1 or 10 2
- 5. 6 In System life cycle, when analyzing the current booking system, the systems analyst must identify the user requirements. Explain why it is important for the systems analyst to do this. ............................................................................................................ ............................................................................................................ ............................................................................................................ ............................................................................................................ ............................................................................................................ ............................................................................................................ Tick () the relevant stage of the systems life cycle for each of the following activities Activity Analysis () Development and testing () Evaluation () Identifying the problems with the current system Comparing the solution with the original task requirements Create the file structure Identify limitations to the new system and improvements to be made 3 2 7 A company is planning to improve its computer system. They have employed a systems analyst who is recording and analyzing information about the current system. Describe why he needs to identify the inputs, processing and outputs of the current system. ............................................................................................................ ............................................................................................................ ............................................................................................................ ............................................................................................................ 2
- 6. Helps the systems analyst to understand howthe systemworks The new systemthat is designed will have to deal with similar inputs and outputs as the current systemYou would need to have the inputs/outputs to showthe input/output devices that are needed You would need to have the processing to show the processing devices that are needed You would need to have the processing to showthe storage/diskspace that are needed 9 A hospital is creating a database to store blood donors medical details. Name the most appropriate validation check for the Health_number. Range check/ length check 1 10 A large organization is introducing a new computer system. Compare and contrast pilot implementation with phased implementation of the new system. ............................................................................................................ ............................................................................................................ ............................................................................................................ ............................................................................................................ ............................................................................................................ ............................................................................................................ ............................................................................................................ ............................................................................................................ Max four from: Neither introduce the system as a whole new system (across the company) / both introduce system in parts Both allow for the performance of the new system to be thoroughly assessed / tested Both allow gradual training Both take time to introduce the whole of the new system (to the whole company) Only one distinct part is being used so safer to implement 4
- 7. Max four from: Pilot implementation Whole system is implemented in one branch / one office at a time If the new system fails only one branch is affected Implemented in a company which has many branches all doing the same work Phased implementation New system is implemented part by part Only one part is being implemented but could affect other departments To gain full marks at least one point from each section is needed, both pilot and phased must also have been compare