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 :
A. MongoDB distributions are currently available for Mac OS X, Linux, Windows Server 2012, Windows Server 2008 R2 64bit, Windows 7 (64 bit), Windows Vista, and Solaris
B. The MongoDB distribution for Solaris include support for the WiredTiger storage engine
C. mongod will not start if dbPath contains data files created by a storage engine
D. None of the mentioned
Answer:A
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 :
A. MongoDB distributions are currently available for Mac OS X, Linux, Windows Server 2012, Windows Server 2008 R2 64bit, Windows 7 (64 bit), Windows Vista, and Solaris B. The MongoDB distribution for Solaris include support for the WiredTiger storage engine C. mongod will not start if dbPath contains data files created by a storage engine D. None of the mentioned
Explanation: The MongoDB distribution for Solaris does not include support for the WiredTiger storage engine. 6. MongoDB uses ________ logging to an on-disk journal.