MongoDB Practice Test 9

1. To protect your data if your main data center fails, keep at least _______ member in an alternate data center.

none of the mentioned

three

two

one

2. Point out the correct statement.

Always start mongod with the same user, even when restarting a replica set member as a standalone instance

The secondary takes time to catch up to the primary

All of the mentioned

Replica sets allow a MongoDB deployment to remain available during the majority of a maintenance window

3. For a member to sync from another, both members must have the same value for the _________ setting.

buildpriIndexes

buildIndexes

getIndexes

secondary

4. mongorestore recreates indexes recorded by _____________

mongodump

all of the mentioned

mongostore

bsondump

5. Which of the following members should be hidden?

Hidden

Delayed

Primary

All of the mentioned

6. The names of rollback files have the following form.

<database>.<collection>.<timestamp>.bson.

<database>.<collection>.<timestamp>.json.

<database>.<collection>.<tp>.bson.

None of the mentioned

7. To modify priorities, you update the members _________ in the replica configuration object.

mdimarray

all of the mentioned

tag

array

8. Secondaries apply operations from the primary asynchronously to provide __________ consistency.

none of the mentioned

strict

eventual

strong

9. ________ applies a new configuration to an existing replica set.

replSetMaintenance

all of the mentioned

replSetReconfig

replSetStepDown

10. The oplog must translate multi-updates into individual operations in order to maintain ____________

scalability

secondary

availability

idempotency