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MongoDB C100DBA Exam Overview:

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The MongoDB C100DBA exam consists of multiple-choice questions and lasts for 90 minutes. The candidates need to score at least 65% to pass the exam and obtain the MongoDB Certified DBA Associate certification. C100DBA exam fee is $150, and it can be taken online or at a testing center. MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) certification is valid for two years, after which the candidates need to renew it by passing a recertification exam. The MongoDB C100DBA Certification is recognized globally and can help professionals enhance their career prospects and improve their credibility in the industry.

MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) Sample Questions (Q117-Q122):

NEW QUESTION # 117
Which TWO commands can be used to remove the role, " specialRole " from " user1 " ?

• A. db.revokeRolesFromUser( " user1 " , [ " specialRole " ])
• B. db.revokeRolesFromUser( " user1 " , [{ role: " specialRole " , db: " myDB " }])
• C. db.revokeRoleFromUser( " user1 " , " specialRole " )
• D. db.revokeRoleFromUser({ user: " user1 " , role: " specialRole " })
• E. db.revokeRolesFromUser( " user1 " , [{ " myDB " : " specialRole " }])

Answer: A,B

Explanation:
The documented mongosh helper is db.revokeRolesFromUser(), and its second argument is an array of roles to revoke. MongoDB permits each role in that array to be expressed either as an explicit document { role: < roleName > , db: < database > } or, when the role belongs to the database in which the command is run, as a simple role-name string. Option C uses the explicit role-document form and is therefore valid for a role named specialRole defined in myDB. Option E uses the shorthand string form and is valid when specialRole is in the current database context. Option A reverses the required document structure and does not supply the mandatory role and db keys. Options B and D use a singular helper, db.revokeRoleFromUser(), which is not the documented MongoDB method. The plural method name reflects that multiple roles can be revoked in a single operation. Administrators should also remember that revoking a directly assigned role does not necessarily remove privileges inherited through other roles. Among the choices, C and E are the syntactically valid revocation forms.
Study Guide reference/topic:Security, Networking, and Encryption - RBAC, user administration, and revokeRolesFromUser().

NEW QUESTION # 118
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. 1
• C. 2
• D. None of the above

Answer: B

NEW QUESTION # 119
Which type of indexes does MongoDB support?

• A. Compound Indexes
• B. All of the above
• C. Geospatial Indexes
• D. Multikey Indexes

Answer: B

NEW QUESTION # 120
'mongoimport' command is used for

• A. Batch data insertion
• B. Multiple command import
• C. None of the above
• D. Multiple command insertion

Answer: A

NEW QUESTION # 121
Given a collection posts as shown below having a document array comments, which of the following command will create an index on the comment author descending?

• A. db.posts.createIndex({

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