MongoDB Exam C100DBA Topic 1 Question 93 Discussion

Actual exam question for MongoDB's C100DBA exam

Question #: 93
Topic #: 1

In a sharded replica set environment, the w Option provides ability for write concern and j Option provides ability for the data to be written on disk journal. Consider that we have a seven member replica set and we want to assure that the writes are committed to journal. What should be the value of j?

Show Suggested Answer

Suggested Answer: A

by Sabine at Jul 18, 2024, 08:15 PM

Limited Time Offer

25%

Off

Get Premium C100DBA Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Carman

1 days ago

Option D) 0? That would be like asking the journal to take a coffee break during the writes. No way, man. Gotta be 1 for the j option!

upvoted 0 times

...

Gilberto

2 days ago

Hold on, why would we need a value of 7 for the j option? That's the total number of members in the replica set, not the journal write concern. I'm going with C) 1.

upvoted 0 times

...

Mee

5 days ago

I agree with Miss. A value of 1 for the j option will ensure the data is written to the journal, which is what we want in a sharded replica set environment.

upvoted 0 times

...

Lourdes

5 days ago

But wouldn't setting j to 7 be even more secure since it ensures all members have committed the write?

upvoted 0 times

...

Miss

7 days ago

Hmm, if we want to ensure the writes are committed to the journal, then the value of j should be 1. The j option is for the data to be written to the disk journal, so 1 should do the trick.

upvoted 0 times

...

Jeannine

10 days ago

I agree with Dortha, setting j to 1 will provide the necessary durability for the writes.

upvoted 0 times

...

Dortha

16 days ago

I think the value of j should be 1 to ensure data is written on disk journal.

upvoted 0 times

...