MCQ Collection
China MCQs
Practice China questions with answers and explanations.
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Correct Answer: D. Normalisation reduces avoidable redundancy and update anomalies
Explanation:
Normalisation decomposes data structures to improve consistency while preserving meaningful dependencies.
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Correct Answer: A. IP handles addressing and routing, while TCP provides reliable ordered delivery for a connection
Explanation:
The Internet protocol suite separates network-layer routing from transport-layer reliability.
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Correct Answer: C. DNS maps human-readable domain names to network-related records such as IP addresses
Explanation:
The Domain Name System is a distributed naming service used to resolve domains.
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Correct Answer: C. Users and processes should receive only the permissions necessary for their tasks
Explanation:
Limiting permissions reduces the impact of mistakes and compromised accounts.
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Correct Answer: A. Routers forward packets between networks using destination information and routing decisions
Explanation:
Routing selects network paths and forwards packets toward their destination networks.
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Correct Answer: A. A function packages reusable behaviour and parameters supply inputs to that behaviour
Explanation:
Functions support abstraction and reuse, while parameters pass values into a call.
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Correct Answer: D. IP handles addressing and routing, while TCP provides reliable ordered delivery for a connection
Explanation:
The Internet protocol suite separates network-layer routing from transport-layer reliability.
Choose an option to check your answer.
Correct Answer: A. DNS maps human-readable domain names to network-related records such as IP addresses
Explanation:
The Domain Name System is a distributed naming service used to resolve domains.
Choose an option to check your answer.
Correct Answer: A. Users and processes should receive only the permissions necessary for their tasks
Explanation:
Limiting permissions reduces the impact of mistakes and compromised accounts.
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Correct Answer: C. A function packages reusable behaviour and parameters supply inputs to that behaviour
Explanation:
Functions support abstraction and reuse, while parameters pass values into a call.
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Correct Answer: B. A useful debugging process reproduces the fault, isolates causes and verifies the fix with tests
Explanation:
Reproduction, isolation and regression testing make a fix explainable and less likely to create new faults.
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Correct Answer: A. Big-O notation describes how resource use grows with input size
Explanation:
Asymptotic notation characterises growth rates rather than exact machine-specific time.
