Question: 1 . In a linked chain implementation of a queue, when both the firstNode and lastNode entries are null, the chain is empty. Answer: 2

1. In a linked chain implementation of a queue, when both the firstNode and lastNode entries are null, the chain is empty.
Answer:
2. In a linked chain implementation of a queue, the enqueue operation requires a traversal to the end of the chain to insert a new entry onto the queue.
Answer:
3. In a linked chain implementation of a queue, the enqueue operation could potentially be dependent on the other entries and will require a search.
Answer:
4. In an array-based implementation of a queue, keeping the front entry of the queue at queue[0] is inefficient.
Answer:
5. In an array-based implementation of a queue, inserting and deleting entries is accomplished using modulo arithmetic.
Answer:

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