If needed to split a node or coalesce it with its siblings, or redistribute key values between siblings, the crabbing protocol locks the parent of the node in ____________ mode.
A. Shared
B. Exclusive
C. Read only
D. None of the mentioned
Answer:A
If needed to split a node or coalesce it with its siblings, or redistribute key values between siblings, the crabbing protocol locks the parent of the node in ____________ mode.
A. Shared B. Exclusive C. Read only D. None of the mentioned
Explanation: Crabbing protocol moves in a crab like manner down the index tree.