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Complete C100DBA MongoDB Materials

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Total 132 questions

MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) Questions and Answers

Question 9

Which mongodb tools allow us to work with our data in a human readable format?

Options:

A.

mongodump

B.

mongostat

C.

mongoimport

D.

mongoexport

Question 10

As per the aggregation pipeline optimization concepts, if you have a $sort followed by a $match:

Options:

A.

Providing these parameters in any order does not impact the performance

B.

$sort moves before $match

C.

MongoDB does not do any movements by default and will use the order provided

D.

$match moves before $sort

Question 11

What is the defau size of a GridFS chunk?

Options:

A.

255 K

B.

1 MB

C.

16 MB

D.

2 MB

Question 12

Which of the following is a valid Replica Set configuration if you want:

1-Have 3 copies of everything

2- That RS3 is never primary

2- That RSI and RS2 can be primary?

You had to see the different configurations, RS3 could be hidden or priority 0 (But not a referee because we need

3 replicas), while RSI and RS2 could NOT have priority 0 or be hidden or anything like that

In a 4-member RS RSO , RSI, RS2 and RS3 + Referee, RSO (primary) falls after some write operations that have

replicated RSI and RS2 (but NOT RS3), who can get up as the new primary?

The configuration comes and in it we see that RS2 has a hidden: true (or a priority: 0, (I don't remember)

Options:

A.

ORS1

B.

ORS2

C.

ORS3

D.

O arbiter

E.

RSO

Page: 3 / 5
Total 132 questions