MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) easy pass guide & C100DBA training pdf & MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) torrent vce

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The MongoDB C100DBA exam is designed to test the candidate's knowledge of MongoDB architecture, installation and configuration, security, performance tuning, backup and recovery, and monitoring and diagnostics. Candidates should have a solid understanding of these topics before attempting the exam. C100DBA Exam consists of 60 multiple-choice questions that must be completed within 90 minutes.

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MongoDB is a popular and widely used NoSQL database that has gained immense popularity in recent years among businesses of all sizes. To ensure that professionals are equipped to handle the various tasks and responsibilities that come with administering MongoDB databases, MongoDB offers the C100DBA Certification. The MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) is a rigorous certification exam designed to test the skills and knowledge of individuals who wish to become certified MongoDB DBAs.

MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) Sample Questions (Q131-Q136):

NEW QUESTION # 131
Which of the following aggregation commands in MongoDB does not support sharded collections?

A. group
B. aggregate
C. All of the above
D. mapReduce

Answer: A

NEW QUESTION # 132
What is a limitation of encryption at rest?

A. It can impact performance greatly.
B. It does not protect against data breaches.
C. It protects against insecure network connections.
D. It requires a lot of additional configuration.

Answer: B

Explanation:
Encryption at rest protects persisted database data on storage media, but it is not a complete defense against every form of data exposure or breach. MongoDB ' s encrypted storage capabilities protect files and storage- level data, yet applications and the database server must still process authorized data in usable form. A compromised application account, stolen database credentials, excessive privileges, or a malicious authorized user can therefore expose data even when the underlying storage is encrypted. Network traffic also requires separate transport protection such as TLS; encryption at rest does not secure data as it travels between clients and servers. Option B incorrectly describes transport encryption rather than an at-rest capability. Option A is too subjective and not an inherent limitation, particularly in managed deployments where storage encryption may be enabled automatically. Option D is similarly overstated; encryption adds cryptographic work, but severe performance impact is not an intrinsic defining limitation. The correct security model is defense in depth: combine at-rest encryption with TLS, strong authentication, least-privilege authorization, auditing, and secure key management. Among the choices, C best captures the limitation that at-rest encryption alone cannot prevent all data breaches.
Study Guide reference/topic:Security, Networking, and Encryption - encryption at rest, TLS, authorization, and defense in depth.

NEW QUESTION # 133
Which option can be used with update command so that a new document gets created if no matching document is found based on the query condition?

A. {update: true, insert: true} as the third parameter of update command
B. Specify {upsert : true } as the third parameter of update command
C. This has to be handled in application code (Node.js, PHP, JAVA, C#, etc.) and cannot be handled in mongo shell query
D. upsert command instead of update command

Answer: B

NEW QUESTION # 134
Which of the following is true about sharding?

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

Answer: A

NEW QUESTION # 135
Which of the following is incorrect statement about find and findOne operations in MongoDB?

A. findQ returns all the documents in a collection while findOne() retrieves only the first one.
B. findQ and findOneQ returns cursors to the collection documents
C. findOneQ returns the actual first document retrieved from a collection
D. find.limit(l) is not the same query as findOne()

Answer: B

NEW QUESTION # 136
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