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1 The City School PAF Chapter Comprehensive Worksheet December 2015 ICTech ANSWERING KEY Class 7 Candidate Name: Index Number: Section: Branch/Campus: Date: Maximum Marks: 50 Time Allowed: 2 hours INSTRUCTIONS: Write your name, index number, section, branch/campus and date clearly in the space provided. Read and follow the instructions of the given questions. Answer all the questions in the space provided. Select only one answers when made to choose, otherwise no marks will be given. Check your answers before handing your paper in. Marks for each section are shown below. This paper consists of 07 printed pages including the cover page For Examiner s use only Sections Section 2 Section 1 Question Question 1 Question 2 Question 3 Total Max. Marks (20) (10) (10) (10) (50) Marks Obtained Percentage Grade INVIGILATED BY MARKED BY MARKS TALLIED BY The City School / PAF Chapter/ Comprehensive Worksheet/ December 2015/ ICTech/ Class 7 / Ans Key Page 1 of 7

2 Section 1 [ /20] Section 1 consists of 10 multiple choice questions. Each question carries 2 marks. Answer all the questions. 1) Computers connected by cable segment to centralized device this topology is known as. [ /02] a. bus b. tree c. star d. ring 2) Arrangement of computers on the network is called? [ /02] a. IP Protocol b. Network topology c. Bus topology d. Tree topology 3) In Computer networks transmission channels can be. [ /02] a. Wired or wireless b. Pc or laptop c. Local or wide d. Server or peer to peer 4) Online banking is an example of? [ /02] a. Peer to peer architecture b. Personal area network c. Client/Server architecture d. Local area network 5) Two types of twisted pair cables are? [ /02] a. Fiber optic and coaxial b. STP and UTP c. Wired and wireless d. Single pair and two pair The City School / PAF Chapter/ Comprehensive Worksheet/ December 2015/ ICTech/ Class 7 / Ans Key Page 2 of 7

3 6) In MS Excel each excel file is known as. [ /02] a. document b. workbook c. textbook d. slide 7) Cell reference is also known as. [ /02] a. rows b. columns c. cell address d. formula 8) Format cells using specific color, border, font, etc is known as. [ /02] a. Optional formatting b. Conditional formatting c. sorting d. filtering 9) In MS Excel, the formula is made up of [ /02] a. Row and Column b. Operand and Operator c. Operator and Cell reference d. Function and Operator 10) Applications that make it easy to access the World Wide Web are known as. [ /02] a. Search engine b. Transmission channels c. Web browsers d. HTTP The City School / PAF Chapter/ Comprehensive Worksheet/ December 2015/ ICTech/ Class 7 / Ans Key Page 3 of 7

4 Section 2 [30 Marks] Section 2 consists of 3 written questions. All question carry equal marks. Answer all the questions. Question 1 [ /10] (1) What are the disadvantages of computer network? Write at least four disadvantages. [ /02] Viruses: If a virus is introduced to the network, either intentionally or unintentionally, it will rapidly spread around all of the workstations and could start to cause damage to files. Network failure: If the file server fails then no-one on the network can access any files or folders. This means that nobody can do any work. Slow service: As more users log onto the network and request files, send things to be printed and open more software applications, the network can start to slow down. Cost: Building a network isn't cheap. Every machine has to be connected to the network either by physical cables or perhaps by wireless technology. (2) What is the difference between client/server and peer to peer network? [ /03] Client/server network Peer to peer network Answers: textbook Page # 5 (3) Name the following types of Protocols on the web. [ /05] S.No Name of Protocol Definition Answers: textbook Page # The City School / PAF Chapter/ Comprehensive Worksheet/ December 2015/ ICTech/ Class 7 / Ans Key Page 4 of 7

5 Question 2 [ /10] (1) Name the following Topology types? [ /02] STAR TOPOLOGY BUS TOPOLOGY RING TOPOLOGY The City School / PAF Chapter/ Comprehensive Worksheet/ December 2015/ ICTech/ Class 7 / Ans Key Page 5 of 7

6 (2) Write at least two advantages and disadvantages of each Topology? [ /03] Star Topology Bus Topology Answers: textbook Page # 6-7 Ring Topology (3) Give full forms of the following. [ /05] S.No. Name Full Form 1 CAN CAMPUS AREA NETWORK 2 Wi-Fi WIRELESS FIDELITY 3 ISP INTERNET SERVICE PROVIDER 4 WWW WORLD WIDE WEB 5 FTP FILE TRANSFER PROTOCOL 6 W3C WORLD WIDE WEB CONSORTIUM 7 TCP TRANSMISSION CONTROL PROTOCOL 8 LAN LOCAL AREA NETWORK 9 UTP UNSHIELDED TWISTED PAIR 10 MAN METROPOLITAN AREA NETWORK Question 3 [ /10] (1) Match the following. [ /05] The City School / PAF Chapter/ Comprehensive Worksheet/ December 2015/ ICTech/ Class 7 / Ans Key Page 6 of 7

7 (2) Identify the following charts and write down their usage: [ /03] Chart image Chart Name Usage Column Chart Shows data changes over a period of time or illustrates comparison Pie Chart Line Chart Shows the size of items that make up a data series proportional to the sum of the items, containing only one data series Shows trends in data at equal intervals (3) What is sorting? How many types of sorting are possible? [ /02] Answers: textbook Page # 15 The City School / PAF Chapter/ Comprehensive Worksheet/ December 2015/ ICTech/ Class 7 / Ans Key Page 7 of 7

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