최신MongoDB Certified Developer Associate - C100DEV무료샘플문제

A. db.sales.find( { items: { elemMatch: { name: 'printer paper' } } } )

B. db.sales.find( { items: { $elemMatch: { name: 'printer paper' } } } )

C. db.sales.find( { items: { $match: { name: 'printer paper' } } } )

A. $ cat /var/mongod.conf

B. $ cat /bin/mongod.conf

C. $ cat /home/mongod.conf

D. $ cat /etc/mongod.conf

A. db.collection.getIndexes()

B. db.collection.insert()

C. db.collection.createIndex()

D. db.collection.create()

A. Yes

B. No

A. Your organization outgrows the most powerful servers available, which limits your vertical scaling capabilities.

B. Every time you start a new project with MongoDB.

C. Your server disks are full, but you can scale up.

D. You have over 6TB per server and operating costs are increasing dramatically.

A. This stage distributes documents evenly across predefined number of buckets.

B. The granularity option allows us to specify preferred bucket boundaries.

C. The syntax for this stage is as follows:

A. Because MongoDB does not utilize tables, rows and columns to organize data.

B. Because MongoDB uses a structured way to store and organize data (collections).

C. Because MongoDB uses tables, rows and columns to organize data.

A. Replica sets use failover to provide high availability to client applications.

B. Replica set members have a fixed role assigned.

C. We can have up to 50 replica set members, but only 7 of those will be voting members.

A. A way to show your database with graphs.

B. A way to organize fields in a document to support your application performance and querying capabilities.

C. A way to decide whether to store your data in the cloud or locally.

D. A way to build your application based on how your data is stored.

A. social_app.posts

B. posts.db

C. posts.social_app

D. db.posts

E. db.social_app

A. mongodump

B. mongostore

C. mongoimport

D. mongoexport