C100DBA Exam Torrent - MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) Actual Test & C100DBA Prep Torrent

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What are the questions asked in MongoDB C100DBA Exam

The questions are to be answered using Write, Flush, Recover, and Update policies for MongoDB. Command-line interface tools are used to administer, install, configure, monitor, secure, and troubleshoot MongoDB. Dumps offered by MongoDB C100DBA Certification Exam help people to improve their weaknesses in this entry-level certification exam.

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To take the MongoDB Certified DBA Associate Exam (C100DBA), candidates need to have a good understanding of MongoDB, its architecture, and various features. They should also have hands-on experience working with MongoDB and managing databases. MongoDB recommends that candidates have at least six months of experience working with MongoDB before taking C100DBA exam.

MongoDB Certified DBA Associate Exam (C100DBA) is an important certification exam for professionals who want to validate their skills and knowledge in managing MongoDB databases. It is based on MongoDB 4.4 and tests candidates' skills in various areas of database administration. To prepare for C100DBA Exam, candidates should gain a deep understanding of MongoDB, practice working with databases hands-on, and familiarize themselves with the exam format. Passing C100DBA exam can help professionals advance their careers and open up new opportunities in the field of database administration.

MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) Sample Questions (Q24-Q29):

NEW QUESTION # 24
What is the correct read preference option to direct all read operations to the secondary?

A. secondaries
B. secondaryPreferred
C. secondariesPreferred
D. secondary

Answer: D

Explanation:
MongoDB read preference controls which replica-set members are eligible to serve read operations. The mode secondary sends reads only to eligible secondary members. If no suitable secondary is available, the read fails rather than falling back to the primary. That strict behavior is exactly what the question asks for.
secondaryPreferred, option A, normally routes reads to secondaries but can use the primary when no suitable secondary is available, so it does not guarantee that every read is served by a secondary. Options B and C are not valid MongoDB read preference mode names. Secondary reads are useful for specific workloads, but DBAs must account for asynchronous replication: a secondary can lag the primary, so data returned from a secondary may be stale relative to the latest acknowledged primary write. MongoDB provides additional controls such as tag sets and maximum staleness settings to restrict which secondary members are considered acceptable. When the explicit requirement is to direct all reads away from the primary and exclusively to secondary members, secondary is the correct read preference. Therefore option D is correct.
Study Guide reference/topic:Cluster Reliability and Data Resilience - replica-set read preferences, secondary reads, and staleness.

NEW QUESTION # 25
What command adds a document to the class101 collection where the student is " Randall " and the student passed the class?

A. db.class101.insertOne({ student: Randall, passed: true })
B. db.class101.insertOne({ student: Randall, passed: True })
C. db.class101.insertOne({ student: " Randall " , passed: true })
D. db.class101.insertOne({ student: " Randall " , passed: True })

Answer: C

Explanation:
db.collection.insertOne() inserts one BSON document into a collection. In mongosh, string values must be quoted and Boolean literals use JavaScript syntax: lowercase true or false. Therefore the student ' s name must appear as " Randall " , and the passed flag must be true. Option D is the only choice that gets both value types correct. Option A quotes the string properly but uses True, which is not the JavaScript Boolean literal.
Options B and C leave Randall unquoted, so mongosh would interpret it as an identifier or variable rather than as the literal string required by the document. Option C additionally uses the invalid capitalized Boolean form.
If an _id field is omitted, MongoDB automatically adds a unique _id, typically an ObjectId, before storing the document. That behavior does not affect the two requested fields. This question tests both CRUD syntax and the BSON/JavaScript literal representation used by mongosh. The correct command is db.class101.insertOne ({ student: " Randall " , passed: true }), so option D is correct.
Study Guide reference/topic:MongoDB Architecture and Core Operations - insertOne(), BSON values, strings, Booleans, and automatic _id.

NEW QUESTION # 26
Consider that you have a collection called population which has fields state and city. Which of the following query will calculate the population grouped by state and city?

A. db.population.aggregate( [{ $group: { _id: { state: "$state", city; "$city" },pop: { $sum: 1 > > >] )
B. db.population.aggregate( [{ $group: { _id: { city: "$city" },pop: { $sum: "$pop" } } }] )Multi Document Transaction is not supported by MongoDB
C. db.population.aggregate( [{ $group: { _id: { state: Estate", city: "$city" },pop: { $pop: 1 } } }] )
D. db.population.aggregate( [{ $group: { _id: { state: Estate", city: n$city" },pop: { $sum: "$pop" } } }] )

Answer: D

NEW QUESTION # 27
In a replica set, a_________number of members ensures that the replica set is always able to select a primary.

A. 0
B. Odd
C. Even
D. Depends on the application architecture

Answer: B

NEW QUESTION # 28
Which of the following does MongoDB use to provide High Availability and fault tolerance?

A. Indexing
B. Sharding
C. Replication
D. Write Concern

Answer: C

NEW QUESTION # 29
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