What is a snapshot in Elasticsearch?
a) A real-time query of an index
b) A backup of an index or cluster at a point in time
c) A collection of shards
d) A replica of a node
Answer:
b) A backup of an index or cluster at a point in time
Explanation:
A snapshot in Elasticsearch is a backup of an index or cluster at a specific point in time, which can be stored and restored when needed.