2023 Latest MongoDB C100DBA Real Exam Dumps PDF
C100DBA Exam Dumps, C100DBA Practice Test Questions
Is This Certification Worth It?
This certification not only shows how much you know about MongoDB but also shows all your past experiences with MongoDB. Having this certification can be very helpful for those who are planning on applying for a job where knowledge of this database is required. Also, having this certification will make you stand out among other applicants because most employers tend to favor employees who are certified. Posts with likes and comments will help you gain the recognition you deserve. This certification will allow you to have a chance at many job opportunities. With this certification, employers will see how experienced you are with MongoDB without having to actually see your knowledge. The only way the employers can carve out a good impression is if they meet with you before making a hiring decision. For those who are planning on applying for a job where knowledge of this database is required, I would say that MongoDB C100DBA exam certification is definitely worth it.
Real life experience in a field where MongoDB is being used will give you an advantage over other applicants. Because of the continued increase of demand for MongoDB, many organizations have started to hire candidates with these skills. MongoDB C100DBA exam certification will be useful for those who are planning on applying for a job that requires knowledge of MongoDB. MongoDB C100DBA Dumps will help you get this certification. Having this certification would help you stand out among other applicants because most employers tend to favor employees who are certified. It is worth mentioning that having this certification will make you more valuable as an employee because the company will know right away how knowledgeable you are on their system.
Best Time To Take The Exam
If this exam has been objective 10 then there was no best time to take it. Environment - If you are taking this exam for the first time, the best time to take it will be after you have completed all your Java training courses. Architecture - If you are taking this exam for the second time, the best time to take it will be after you have completed all your Java training courses. Exam environment and architecture are exactly like the Java certification exam. Expect between 60 and 85 questions in each exam cycle.
What Is MongoDB Certification Validity?
Certification validity is one year and it can be renewed every year. There are two types of exam and these exams are based on the field type. Certified that you have the experience and knowledge of using MongoDB to be able to answer these kinds of questions in no time. Exam for this certification includes different kinds of questions such as programming, multiple choice questions and others. Confirm your knowledge about this exam with the help of online learning at FDT Training. Validity is available for two years, after that it can be renewed. It is always a paid certification and no free version is available to customers out there in the market. There are different types of benefits of MongoDB C100DBA certification exam questions which can be found on several sources easily. Identity, which includes all the data related to a specific document including its primary key and other details. Perfect and authentic way to ensure the security and privacy of the data. Updates are done without any problem, which can be found easily on Google. Code that can be used to ensure the security and privacy of the data. Excellent way to ensure the security and privacy of data.
NEW QUESTION 34
Write the command(s) are correct to enable sharding on a database "testdb" and shard a collection "testCollection" with _id as shard key.
Answer:
Explanation:
sh.enableSharding("testdb") & sh.shardCollection("testdb.testCollection", {_id : 1 }, true )
NEW QUESTION 35
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
Answer: D
NEW QUESTION 36
Which of the following operators is used to updated a document partially?
- A. $modify
- B. $project
- C. $update
- D. $set
Answer: D
NEW QUESTION 37
What does the following aggregate query perform?
- A. Groups the posts by number of likes (101, 102, 103.) by adding 1 every time
- B. Fetches the posts with likes between 100 and 200 and sets their _id as null
- C. Calculates the number of posts with likes between 100 and 200
- D. 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
Answer: C
NEW QUESTION 38
Which of the following commands will return all the posts with number of likes greater than 100 and less than
200, both inclusive?
- A. db.posts.find({ likes : { $gt : 100, $lt : 200 > > );
- B. db.posts.find({ likes : { $gte : 100 , $lte : 200 } } );
- C. db.posts.find({ likes : { $gte : 100, $lt : 200 } } );
- D. db.posts.find({ likes : { $gt : 100 , $lte : 200 } } );
Answer: B
NEW QUESTION 39
Using an arbiter allows one to easily ensure an odd number of voters in replica sets. Why is this important?
- A. To enable certain read preference settings
- B. For more efficient backup operations
- C. To protect agains network partitions
- D. To add greather redundancy
- E. To help in disaster recovery
Answer: C
NEW QUESTION 40
The MongoDB explain() method does not support which of the following verbosity mode:
- A. queryPlanner
- B. executionStats
- C. customExecutionStats
- D. allPlansExecution
Answer: C
NEW QUESTION 41
'$set' sets the value of
- A. Code block
- B. None of the above
- C. Name/value pair
- D. Key
Answer: D
NEW QUESTION 42
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. Depends on the application architecture
- D. Even
Answer: B
NEW QUESTION 43
Which of the following is true about sharding?
- A. We cannot change a shard key directly/automatically once it is set up
- B. Sharding is enabled at the database level
- C. A sharded environment does not support sorting functionality since the documents lie on various mongod instances
- D. Creating a sharded key automatically creates an index on the collection using that key
Answer: A
NEW QUESTION 44
What tool do you use to see if you have a problem in the consumption of disk I / 0?
Answer:
Explanation:
Mongoperf
NEW QUESTION 45
Which is the default mode in which the explain() command runs?
- A. executionStats
- B. queryPlanner
- C. allPlansExecution
- D. customExecutionStats
Answer: B
NEW QUESTION 46
Addding the index {a:l} can potentially decrease the speed of which of the following operations? Check all that apply.
- A. db.collection.find( {a : 232} )
- B. db.collection.insert( { a:341})
- C. db.collection.update({b:456>, {$inc: {a:l> })
Answer: B,C
NEW QUESTION 47
Which of the following are common uses of the mongo shell? Check all that apply
- A. Use as a JavaScript framework for your production system
- B. Perform queries against MongoDB collections
- C. Perform administrative tasks
Answer: B,C
NEW QUESTION 48
Which command can be used to rebuild the indexes on a collection in MongoDB?
- A. db.collection.relndexQ
- B. db.collection.createlndex({relndex:l})
- C. db.collection.reIndex({author:l})
- D. db.collection.createIndex({author:l}).reIndex()
Answer: A
NEW QUESTION 49
Below is a sample document of "orders" collection
Answer:
Explanation:
$project
NEW QUESTION 50
Which of the following aggregate commands in MongoDB uses a pipeline approach with the goals of improving the aggregation performance?
- A. All of the above
- B. aggregate
- C. group
- D. mapReduce
Answer: B
NEW QUESTION 51
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( [{ $group: { _id: { city: "$city" },pop: { $sum: "$pop" } } }] )Multi Document Transaction is not supported by MongoDB
- B. db.population.aggregate( [{ $group: { _id: { state: Estate", city: n$city" },pop: { $sum: "$pop" } } }] )
- C. db.population.aggregate( [{ $group: { _id: { state: Estate", city: "$city" },pop: { $pop: 1 } } }] )
- D. db.population.aggregate( [{ $group: { _id: { state: "$state", city; "$city" },pop: { $sum: 1 > > >] )
Answer: B
NEW QUESTION 52
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PDF (New 2023) Actual MongoDB C100DBA Exam Questions: https://easytest.exams4collection.com/C100DBA-latest-braindumps.html
