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MongoDB C100DBA 덤프는 MongoDB C100DBA 시험의 모든 문제를 커버하고 있어 시험적중율이 아주 높습니다. DumpTOP는 Paypal과 몇년간의 파트너 관계를 유지하여 왔으므로 신뢰가 가는 안전한 지불방법을 제공해드립니다. MongoDB C100DBA시험탈락시 제품비용 전액환불조치로 고객님의 이익을 보장해드립니다.

MongoDB Certified DBA Associate Exam (C100DBA)은 MongoDB 4.4 배포를 관리하는 데 필요한 기술과 지식을 검증하고자 하는 전문가들을 위한 인증 시험입니다. MongoDB는 전 세계 많은 조직에서 사용하는 인기있는 NoSQL 데이터베이스입니다. 이 시험은 MongoDB 4.4를 기반으로 하며 보안, 데이터 모델링, 복제, 샤딩, 백업 및 복구와 관련된 다양한 주제를 다룹니다.

MongoDB C100DBA 시험에 통과하려면, 후보자는 데이터베이스 개념과 기술에 대한 견고한 이해와 MongoDB 데이터베이스를 배포하고 관리하는 실전 경험이 필요합니다. 또한 mongod, mongos 및 MongoDB Compass와 같은 MongoDB 도구와 유틸리티를 숙지해야 합니다. 추가적으로, 후보자는 성능, 보안 및 데이터 무결성과 관련된 일반적인 문제를 해결할 수 있어야 합니다. 전반적으로, MongoDB C100DBA 자격증 시험은 MongoDB 데이터베이스 관리 전문성을 입증하도록 후보자들에게 종합적이고 도전적인 시험입니다.

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몽고디비 C100DBA 시험은 몽고디비를 사용한 데이터베이스 관리와 관련된 다양한 주제를 다루는 포괄적인 시험입니다. 이 시험은 몽고디비의 설치 및 구성, 데이터 모델링, 인덱싱, 복제, 샤딩, 보안 및 관리와 같은 주제를 다룹니다. 시험은 이러한 주제와 관련된 작업을 수행할 수 있는 능력과 기본 개념에 대한 이해를 입증하는 후보자의 능력을 시험하는 것을 목적으로합니다.

최신 MongoDB Certified DBA Associate C100DBA 무료샘플문제 (Q132-Q137):

질문 # 132
Which of the following is true about sharding?

A. A sharded environment does not support sorting functionality since the documents lie on various mongod instances
B. Creating a sharded key automatically creates an index on the collection using that key
C. We cannot change a shard key directly/automatically once it is set up
D. Sharding is enabled at the database level

정답：C

질문 # 133
A user stores movie data in a collection called movies. The collection contains thousands of documents.
A sample document looks like this:
{ " title " : " Titanic " , " year " : 1997, " rating " : 8.6 }
The user runs the following query to sort movies first by year, and then by rating:
db.movies.find().sort({ " year " : 1, " rating " : -1 })
Which index would improve the query ' s performance the MOST?

A. db.movies.createIndex({ " year " : 1, " title " : 1, " rating " : -1 })
B. db.movies.createIndex({ " rating " : -1, " year " : 1 })
C. db.movies.createIndex({ " rating " : 1, " year " : -1 })
D. db.movies.createIndex({ " year " : -1, " rating " : 1 })

정답：D

설명：
MongoDB can use a compound index to satisfy a multi-field sort when the sort keys appear in the same sequence as the index keys and the requested directions either match the index pattern or are the exact reverse of the entire pattern. The query sorts by { year: 1, rating: -1 }. Option B defines { year: -1, rating: 1 }, which is the complete inverse, so MongoDB can scan that index backward and produce year ascending with rating descending without a blocking in-memory sort. Option A puts title between year and rating; because there is no equality condition fixing title, the index cannot provide a global ordering by { year, rating } across all titles. Options C and D put rating before year, so their primary index ordering does not match the query ' s primary sort key. For multi-field sorts, field sequence is just as important as direction. Therefore B is the strongest index among the presented choices. A forward index { year: 1, rating: -1 } would also be ideal, but it is not offered.
Study Guide reference/topic:Indexing and Query Optimization - compound index sort order, reverse traversal, and index prefixes.

질문 # 134
What does the following aggregate query perform?

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

정답：A

질문 # 135
The Production MongoDB Cluster contains Personally Identifiable Information, such as Name, Demographics, Date of Birth, and Government Identification Number. Due to strict compliance requirements, a database administrator is tasked to ensure a client ' s side encryption.
What feature should the administrator use to meet the requirement?

A. Queryable Encryption
B. Encrypted Storage Engine
C. TLS/SSL
D. Role Based Access Controls

정답：A

설명：
Queryable Encryption is designed for client-side protection of sensitive fields while preserving supported query capabilities over encrypted values. With this model, appropriately configured client drivers encrypt selected fields before data is transmitted to the MongoDB server and decrypt authorized results on the client side. That architecture is well suited to highly sensitive PII such as government identification numbers, dates of birth, or regulated demographic information because the database server stores encrypted field values rather than plaintext for those protected fields. The Encrypted Storage Engine, option A, protects database files at rest but the server can still process decrypted data internally. TLS/SSL, option B, protects data while it is moving across the network, not the application field values from the database server itself. Role-Based Access Control, option C, restricts which authenticated principals can perform actions but does not itself cryptographically protect the field contents. Queryable Encryption complements, rather than replaces, TLS, authentication, authorization, auditing, and storage encryption. For the specific requirement of client-side encryption of sensitive application data, option D is the correct MongoDB feature.
Study Guide reference/topic:Security, Networking, and Encryption - Queryable Encryption, client-side encryption, sensitive fields, and key management.

질문 # 136
Consider the following example document from the sample collection. All documents in this collection have the same schema.

Which of the following queries will replace this with the document.

A. db.sample.update( { "_id" : 3 } , { "$set" : { "_id" : 7 , "c" : 4 } } )
B. db.sample.update( { "_id" : 3 } , { "_id" : 7 , "c" : 4 } )
C. db.sample.update( { "_id" : 3 } , { "_id" : 7 , "c" : 4 } , { "justOne" : true } ) // This operation cannot be done with a single query.
D. db.sample.update( { "_id" : 3 } , { "_id" : 7 , "c" : 4 , { "$unset" : [ "a" , "b" ] } } )

정답：D

질문 # 137
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