11.) What is a hidden node in a replica set?
A) A node that is not visible to the application
B) A node that stores encrypted data
C) A node that handles only write operations
D) A node that does not participate in replication
12.) Which command is used to check the status of a replica set?
A) rs.info()
B) rs.check()
C) rs.status()
D) rs.health()
13.) What is the default priority of a secondary node in a replica set?
14.) What is the role of a delayed secondary node?
A) To speed up replication
B) To act as an arbiter
C) To handle write operations
D) To delay replication for disaster recovery purposes
15.) Which of the following is true about the votes property in a replica set?
A) It determines the storage capacity of a node
B) It determines whether a node can vote in elections
C) It determines the read preference of a node
D) It determines the write concern of a node
16.) What is the purpose of the priority property in a replica set?
A) To determine the likelihood of a node becoming primary
B) To determine the storage capacity of a node
C) To determine the read preference of a node
D) To determine the write concern of a node
17.) What is the default write concern in a replica set?
A) {w: 1}
B) {w: 2}
C) {w: “majority”}
D) {w: “all”}
18.) What is the purpose of the rs.slaveOk() command?
A) To enable writes on secondary nodes
B) To allow reads from secondary nodes
C) To initiate a replica set
D) To configure an arbiter
19.) What is the maximum replication lag allowed for a secondary node to participate in elections?
A) 10 seconds
B) 30 seconds
C) 60 seconds
D) 120 seconds
20.) Which of the following is true about read preferences in a replica set?
A) They determine the write concern
B) They determine where reads are directed (primary or secondary)
C) They determine the storage engine
D) They determine the election process
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