IBM MQ v9.4 Administrator - Professional 認定 C1000-200 試験問題:
1. How does IBM MQ ensure atomic processing of messages when multiple messages are sent and consumed within a single transaction, so that either all operations succeed together or none are committed, avoiding partial updates in case of application failure or system crash?
A) By sending all messages as non-persistent without acknowledgment
B) By using message groups without transactional support
C) By using syncpoint-controlled PUT and GET operations
D) By replicating messages to multiple queues without commit control
2. In IBM MQ, which mechanism allows messages that cannot be delivered due to errors such as queue full, queue does not exist, or authorization failures to be captured in a separate queue, and what configuration is necessary to ensure these messages are properly handled for analysis or retry?
A) Persistent queues store messages reliably but do not handle undeliverable messages.
B) Queue Grouping automatically redistributes messages to other consumers if delivery fails.
C) Dead Letter Queue captures undeliverable messages and requires the queue manager's DLQ parameter to specify its target queue.
D) Multi-instance queue managers provide failover for delivery but do not redirect failed messages.
3. How does IBM MQ handle message persistence, and what are the trade-offs between using persistent messages versus non-persistent messages in terms of performance, reliability, and resource usage?
A) Persistent messages are stored on disk to survive crashes, ensuring reliability but with higher I/O overhead; non-persistent messages exist in memory for faster performance but are lost on failure.
B) Non-persistent messages are automatically replicated for reliability, while persistent messages are lost on system crash.
C) Both persistent and non-persistent messages are stored on disk, with no difference in reliability.
D) Persistent messages are only used in clustering, while non-persistent messages are for local queues.
4. In IBM MQ, administrators often need to handle messages that cannot be delivered to their intended destination because of issues such as application downtime or incorrect routing. To prevent message loss and provide a mechanism for reprocessing these messages later, which IBM MQ component should be implemented?
A) Non-persistent queues with application-level retry logic
B) Temporary dynamic queues for retry attempts
C) Dead-letter queues with dead-letter handlers for processing undeliverable messages
D) Manual intervention by system operators to capture failed messages
5. Which IBM MQ feature allows multiple applications to read from the same queue concurrently without conflicts, and how does it ensure message integrity in a multi-consumer environment?
A) Shared Queues allow applications to read the same message simultaneously, with MQ automatically managing locks.
B) Message Channels serialize access to ensure only one consumer can read at a time.
C) Queue Grouping lets applications share a queue by distributing messages among members while maintaining exclusive access to individual messages.
D) Clustering ensures that messages are replicated to all queue managers for concurrent access.
質問と回答：
| 質問 # 1 正解： C | 質問 # 2 正解： C | 質問 # 3 正解： A | 質問 # 4 正解： C | 質問 # 5 正解： C |
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