Explanation:Each database has a readers-writer lock that allows concurrent read access to a database, but gives exclusive access to a single write operation per database. 4. _________ supports concurrent access by readers and writers to the documents in a collection.
A. MMAPv1
B. WiredTiger
C. WirelessTiger
D. All of the mentioned
Answer:A
Explanation:Each database has a readers-writer lock that allows concurrent read access to a database, but gives exclusive access to a single write operation per database. 4. _________ supports concurrent access by readers and writers to the documents in a collection.
A. MMAPv1 B. WiredTiger C. WirelessTiger D. All of the mentioned
Explanation:Clients can read documents while write operations are in progress, and multiple threads can modify different documents in a collection at the same time. 5. Point out the correct statement :