자격증 발급 기관의 출제 기준 변경에 맞춰 ExamPassdump의 C100DBA 연습문제는 2026년에도 지속적으로 업데이트됩니다. 130문항 전체를 365일 무료 업데이트와 함께 이용하실 수 있습니다.

MongoDB C100DBA 시험 개요:

MongoDB C100DBA 시험 요강 주제:

C100DBA 시험 자주 묻는 질문 총정리

최신 MongoDB Certified DBA Associate C100DBA 무료샘플문제

문제 #1

What does the following aggregate query perform?

A. Fetches the posts with likes between 100 and 200 and sets their _id as null
B. Groups the posts by number of likes (101, 102, 103.) by adding 1 every time
C. Fetches the posts with likes between 100 and 200, sets the _id of the first document as null and then increments it 1 every time
D. Calculates the number of posts with likes between 100 and 200

문제 #2

Consider the following document:
> db.c.find()
{ "_id" : 12, b : [ 3, 5, 7, 2, 1, -4, 3, 12 ] }
Which of the following queries on the "c" collection will return only the first five elements of the array in the "b" field? E.g., Document you want returned by your query:
{ "_id" : 12, "b" : [ 3, 5, 7, 2, 1 ] }

A. db.c.find( { > , { b : [ 0, 1, 2, 3, 4, 5 ] > )
B. db.c.find( { > , { b : [ 0 , 5 ] > )
C. db.c.find( { > , { b : { $slice : [ 0 , 5 ] } } )
D. db.c.find( { > , { b : { $substr[ 0 , 5 ] > > )
E. db.c.find( { b : [ 0 , 5 ] > )

문제 #3

Aggregation Pipelines have a limit of:

A. 2 MB document and 100 MB RAM
B. No limit on document and 100 MB RAM
C. 2 MB document and no limit on RAM
D. 16 MB document and 100 MB RAM

문제 #4

What does the following query do when performed on the posts collection? db.posts.update({_id:l},{Title:This is post with ID 1"})

A. Syntax error
B. Updates the Title of the post
C. Updating a document is possible only with $set
D. Replaces the complete document with _id as 1 with the document specified in second parameter

문제 #5

In order to ensure that you can maintain high availability in the face of server failure, you should implement which of the following?

A. The proper storage engine
B. Properly defined user roles
C. Replication
D. Put indexes on all of your documents
E. Sharding

질문과 대답: