Multiple Choice Questions: Distributed Systems

Add the following multiple choice questions and answers and explanations verbatim (DO NOT change the given wording). ========================================== New Question 1: What are common reasons a distributed system may need to scale? Choice A: Increased data volume Choice B: Decreased user ba...

Add the following multiple choice questions and answers and explanations verbatim (DO NOT change the given wording). ========================================== New Question 1: What are common reasons a distributed system may need to scale? Choice A: Increased data volume Choice B: Decreased user base Choice C: Reduced number of transactions Choice D: Lower network speed Correct answer: A Explanation: Systems may need to scale due to increased data volume or an increased number of transactions to handle more work without performance loss. ========================================== New Question 2: Which of the following factors can limit the efficiency scalability of a distributed system? Choice A: Network load Choice B: Redundancy Choice C: Number of users Choice D: Disk storage capacity Correct answer: A Explanation: Network load and topology significantly influence the efficiency of operations within a distributed system, potentially limiting scalability. ========================================== New Question 3: What aspect of manageability involves the ability to quickly repair or update a system? Choice A: Scalability Choice B: Reliability Choice C: Serviceability Choice D: Efficiency Correct answer: C Explanation: Serviceability or manageability involves the simplicity and speed with which a system can be repaired or maintained. ========================================== New Question 4: Why is analyzing only the number of messages sent in a distributed system considered over-simplistic? Choice A: It ignores network topology and load Choice B: It counts message sizes inaccurately Choice C: It includes redundant messages Choice D: It overestimates the efficiency Correct answer: A Explanation: Analyzing just the number of messages ignores the impact of network topology, network load, and other factors affecting system performance. ========================================== New Question 5: How does a balanced load across nodes contribute to system scalability? Choice A: It ensures that no single node becomes a bottleneck. Choice B: It increases the redundancy of data. Choice C: It minimizes the need for manageability. Choice D: It reduces the overall number of nodes required. Correct answer: A Explanation: Balancing the load across nodes ensures that no single node becomes a bottleneck, allowing the system to scale efficiently. ========================================== New Question 6: Which of the following best describes the relationship between response time and throughput in measuring system efficiency? Choice A: Response time measures latency, while throughput measures the number of items delivered per time unit. Choice B: Response time measures the total operational time, while throughput measures the error rate. Choice C: Response time measures the number of messages, while throughput measures the network load. Choice D: Response time measures uptime, while throughput measures redundancy. Correct answer: A Explanation: Response time (latency) denotes the delay to obtain the first item, while throughput (bandwidth) denotes the number of items delivered in a given time unit. ==========================================