（2023)C100DBA問題集と練習テスト（123問題)
ガイド（2023年最新)リアルなMongoDB C100DBA試験問題
MongoDBのC100DBA認定試験は、MongoDBデータベースシステムの管理と展開における熟練度を証明したいデータベース管理者向けに設計されています。この認定試験は、MongoDBの最新バージョンであるバージョン4.4に基づいています。データベースセキュリティ、データモデリング、バックアップとリカバリ、パフォーマンスチューニング、およびレプリケーションなど、さまざまなトピックをカバーしています。
質問 # 64
What tool do you use to see if you have a problem in the consumption of disk I / 0?
正解：
解説：
Mongoperf
質問 # 65
What tool do you use if you want to extract a CSV from mongo?
正解：
解説：
mongoexport
質問 # 66
What is the replication factor for a replicated cluster with 1 primary, 3 secondaries with one of them hidden.
The set also has an arbiter?
- A. 0
- B. None of the above
- C. 1
- D. 2
正解：A
質問 # 67
Below is a sample document of "orders" collection
正解：
解説：
$sort
質問 # 68
Which operations add new documents to a collection?
- A. insert
- B. Create
- C. delete
- D. update
正解：A、B
質問 # 69
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. Updating a document is possible only with $set
- B. Syntax error
- C. Updates the Title of the post
- D. Replaces the complete document with _id as 1 with the document specified in second parameter
正解：D
質問 # 70
You are comparing values of different BSON types in mongodb. You want to compare from lowest to highest.
Which comparison order is used?
- A. Objec^Array^inData,Symbol, String,MinKey, Null, Numbers
- B. MinKey, Null, Numbers,Symbol, String,Object,Array,BinData
- C. Object/Array^inData/Symbol,MinKey, Null, Numbers,String
- D. MinKey, Null, Numbers,Object,Array,BinData,Symbol, String
正解：B
質問 # 71
Which of the following collections stores authentication credentials in MongoDB?
- A. users.users
- B. local.users
- C. test.users
- D. system.users
正解：D
質問 # 72
MongoDB is
- A. Relational DBMS
- B. Object-oriented DBMS
- C. Document-oriented DBMS
- D. None of the above
正解：C
質問 # 73
What is the defau size of a GridFS chunk?
- A. 1 MB
- B. 16 MB
- C. 255 K
- D. 2 MB
正解：C
質問 # 74
Which option should be used to update all the documents with the specified condition in the MongoDB query?
- A. specify {updateAII: true} as the third parameter of update command
- B. specify {multi : true} as the third parameter of update command
- C. specify {all: true} as the third parameter of update command
- D. updateAII instead of update
正解：B
質問 # 75
Which of the following statements are true about the $match pipeline operator? Check all that apply.
- A. You should use it early as possible in the pipeline
- B. It can be used as many time as needed.
- C. It has a sintax similar to findQ commands.
正解：A、B、C
質問 # 76
Which of the following does MongoDB use to provide High Availability and fault tolerance?
- A. Replication
- B. Write Concern
- C. Sharding
- D. Indexing
正解：A
質問 # 77
Which of the following commands can cause the database to be locked?
- A. Inserting data
- B. Map-reduce
- C. All of the above
- D. Issuing a query
正解：C
質問 # 78
A collection and a document in MongoDB is equivalent to which of the SQL concepts respectively?
- A. Column and Row
- B. Table and Column
- C. Database and Table
- D. Table and Row
正解：D
質問 # 79
What does the following $slice query return using the following command? db.posts.find( {}, { comments: {
$slice: [ -10, 5 ] } } )
- A. Returns 10 comments, beginning with the last
- B. Returns 5 comments, beginning with the last 10 items
- C. Returns 5 comments, beginning with the first 10 items
- D. Returns 10 comments, beginning with the first
正解：B
質問 # 80
The oplog (operations log) is a special capped collection that keeps a rolling record of all operations that modify the data stored in your databases. All the replica set members contain a copy of the oplog in the following collection:
- A. <replicasetid>.oplog.rs
- B. <database>..oplog.rs
- C. oplog.rs
- D. local.oplog.rs
正解：D
質問 # 81
Which format/standard is used by MongoDB internally to store documents?
- A. B+ Trees
- B. JSON - Extended
- C. JSON
- D. BSON
正解：C
質問 # 82
In mongodb how do you update a document partially?
- A. $set
- B. $project
- C. $modify
- D. $update
正解：A
質問 # 83
You have the following index on the toys collection:
{
"manufacturer" : 1,
"name" : 1,
"date" : -1
}
Which of the following is able to use the index for the query? Check all that apply.
- A. db.toys.find( { date : "2015-03-01", manufacturer : "Loggo", name : "Brick Set" } )
- B. db.toys.find( { manufacturer : "Matteo", name : "Barbara", date : "2014-07-02" } )
- C. db.toys.find( { name : "Big Rig Truck", date : "2013-02-01", manufacturer : "Tanko"
正解：A、B、C
質問 # 84
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C100DBA試験問題集パスできる2023年最新の認証された試験問題：https://www.goshiken.com/MongoDB/C100DBA-mondaishu.html
C100DBA試験問題リアルな最新問題PDF：https://drive.google.com/open?id=1FRs6oi5YJZGTyC5DyZ2vtyOw1PW_dqeF