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2. Communication
A section of Computer Science, 9618
Listing 10 of 11 questions
A networked closed‑circuit television (CCTsystem in a house uses sensors and cameras to detect the presence of a person. It then tracks the person and records a video of their movements. Data from the CCTV cameras is transmitted to a central computer. This computer has both Read Only Memory (ROM) and Random Access Memory (RAM). Describe the contents of the ROM in the central computer. The central computer has Dynamic RAM (DRAM). Identify two advantages of using DRAM instead of Static RAM (SRAM). The central computer stores the video files on secondary storage. Describe two reasons why magnetic storage is more appropriate than solid state storage for this computer. The CCTV system uses Artificial Intelligence (Ato identify the presence of a person in the house and to track their movements. Describe how AI is used in this system. The CCTV cameras are connected to a network and transfer their data wirelessly to the central computer. Each device on the network has an IP address. Complete the description of IP addresses. An IPv4 address contains groups of digits. Each group is represented in bits and the groups are separated by full stops. An IPv6 address contains groups of digits. Each group is represented in bits. Multiple groups that only contain zeros can be replaced with a . The network makes use of subnetting. Describe two benefits of subnetting a network.
9618_s23_qp_11
THEORY
2023
Paper 1, Variant 1
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Questions Discovered
11