A company has several IT rooms. The computers in each IT room are connected to the company’s network. One of the physical safety issues is workers tripping over cables. Describe, in detail, three other physical safety issues that can arise from the use of IT rooms. For each issue, give one method of helping to prevent it. Each method must be different. Issue 1 Prevention method Issue 2 Prevention method Issue 3 Prevention method

9626_s21_qp_13

THEORY

2021

Paper 1, Variant 3

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When data is transmitted across networks it needs to be protected from interception and eavesdropping. Explain how each of these network security protocols operates. Secure Shell (SSH) Internet Protocol Security (IPsec) Explain why the use of Telnet for remote login may put data at risk.

9626_s23_qp_32

THEORY

2023

Paper 3, Variant 2

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Describe, in detail, three different safety (apart from e-safety) issues that can arise from the use of IT. For each issue give one method of helping to prevent it. Each method must be different. Issue 1 Prevention Issue 2 Prevention Issue 3 Prevention

9626_w18_qp_11

THEORY

2018

Paper 1, Variant 1

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Describe, in detail, three different safety (apart from e-safety) issues that can arise from the use of IT. For each issue give one method of helping to prevent it. Each method must be different. Issue 1 Prevention Issue 2 Prevention Issue 3 Prevention

9626_w18_qp_13

THEORY

2018

Paper 1, Variant 3

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A company selling goods online has a network which is configured to allow its web server, FTP server and email server to be accessible from the internet. The company was concerned that the network configuration exposed the whole LAN to security risks so has attempted to improve security by altering the configuration from that in Fig. 4 to the configuration shown in Fig. 5. Internet Router Firewall Web server FTP server Company internal file, database and email servers Email server Staff workstations Internet Router Internal firewall External firewall Web server FTP server Company internal file, database and email servers Email server Staff workstations Fig. 4 Fig. 5 Explain how the network configuration has been altered in order to maximise security of the company file servers while still allowing access to the other services from the internet. Explain, using the information from Fig. 5, why the additional firewall provides more security for the company network.

9626_w18_qp_33

THEORY

2018

Paper 3, Variant 3

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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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A bank stores details of customer accounts on its computer system. Customers and staff can access the accounts by logging in to the bank’s website. Describe the security methods that could be used to ensure that the person logging in is authorised to do so. The bank insists that its staff use a VPN when accessing the accounts from outside the bank’s intranet. Describe the network protocols that could be used by this VPN.

9626_w19_qp_32

THEORY

2019

Paper 3, Variant 2

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Many companies allow workers who work from home to access company data using a virtual private network (VPN). Discuss the benefits and drawbacks to companies of using a VPN.

9626_w20_qp_12

THEORY

2020

Paper 1, Variant 2

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Companies are concerned that their employee files may be viewed and used by unauthorised people. A company uses access rights to protect files stored on its network. Explain how different access rights can be used to control access to files.

9626_w20_qp_33

THEORY

2020

Paper 3, Variant 3

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