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B-link tree requires a pointer to its __________ sibling.

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B-link tree requires a pointer to its __________ sibling. (a) Upper (b) Lower (c) Right (d) Left This question was posed to me in a job interview. This question is from Concurrency in Index Structures in section Concurrency Control of Database Management Select the correct answer from above options Interview Questions and Answers, Database Interview Questions and Answers for Freshers and Experience

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Right choice is (c) Right Best explanation: This pointer is required because a lookup that occurs while a node is being split may have to search not only that node but also that node’s right sibling.

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