Narinder works as a computer operator for a company which has its own LAN. Describe the characteristics of a LAN, including the technologies used. The company Narinder works for is in Ghana. Her parents live in Tanzania, a long way from Ghana. She writes a blog and uses instant messaging to stay in touch with her parents. Describe four other methods by which Narinder could use the internet to communicate with her parents, giving a different drawback of each method. Method 1 Drawback Method 2 Drawback Method 3 Drawback Method 4 Drawback

9626_s21_qp_12

THEORY

2021

Paper 1, Variant 2

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The introduction of 5G cellular communication systems will provide increased bandwidth for users. 5G cellular communication systems will enable video delivery to users to be more reliable. Describe two other improvements that 5G will be able to provide. Describe two drawbacks of the introduction of 5G cellular communication systems.

9626_s21_qp_31

THEORY

2021

Paper 3, Variant 1

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Describe the limitations of using wireless access points (WAPs) to connect portable computers to a cabled network.

9626_s21_qp_32

THEORY

2021

Paper 3, Variant 2

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Switches are devices used in computer networks. Describe the role and operation of a network switch.

9626_s21_qp_32

THEORY

2021

Paper 3, Variant 2

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The introduction of 5G cellular communication systems will provide increased bandwidth for users. 5G cellular communication systems will enable video delivery to users to be more reliable. Describe two other improvements that 5G will be able to provide. Describe two drawbacks of the introduction of 5G cellular communication systems.

9626_s21_qp_33

THEORY

2021

Paper 3, Variant 3

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Frame Relay is used in networks. Explain why Frame Relay is used. Explain the drawbacks of using Frame Relay.

9626_s22_qp_32

THEORY

2022

Paper 3, Variant 2

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A company network has a file server and a print server. Employees store their files on the file server and use the print server when they need hard copies of their work. Discuss the benefits and drawbacks of the use of a print server on company networks. The company also has an FTP server. Its web designers use FTP to upload and download files between the FTP server and their workstations. Evaluate the use of FTP in this scenario.

9626_s24_qp_32

THEORY

2024

Paper 3, Variant 2

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Many organisations have an intranet and often extend it to form an extranet. Describe, using examples, what an intranet is and how it could be extended into an extranet.

9626_w19_qp_12

THEORY

2019

Paper 1, Variant 2

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Laura, the manager of a new company, has just purchased some computers for workers to use. With the increase in the use of ransomware by hackers she has decided that the workers will not be allowed access to the internet. However, she needs to decide whether or not to connect the computers together to form a network. Without referring to the internet, discuss the advantages and disadvantages of networking these computers.

9626_w19_qp_12

THEORY

2019

Paper 1, Variant 2

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There are a number of computers which a school is planning to network. Discuss the advantages and disadvantages, to the students, of having a computer network.

9626_w20_qp_11

THEORY

2020

Paper 1, Variant 1

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