[Aug-2023] The Best MongoDB Certified DBA Associate Study Guide for the C100DBA Exam
C100DBA certification guide Q&A from Training Expert Dumpexams
MongoDB Certified DBA Associate Exam (C100DBA) is a certification exam designed for professionals seeking to validate their skills and knowledge in managing MongoDB 4.4 deployments. MongoDB is a popular NoSQL database used by many organizations worldwide. The exam is based on MongoDB 4.4 and covers a wide range of topics related to MongoDB administration, including security, data modeling, replication, sharding, backup, and recovery.
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 # 41
If you have created a compound index on (A,B, C) which of the following access pattern will not be able to utilize the index?
- A. B, C
- B. A
- C. A, B, C
- D. A, B
Answer: A
NEW QUESTION # 42
You have a replicated cluster with 1 primary, 3 secondary, 1 arbiter. One of the secondary is hidden. What is the replication factor of this replicated cluster?
- A. 06
- B. 0
- C. 03
- D. 04
Answer: D
NEW QUESTION # 43
Which is the default mode in which the explain() command runs?
- A. customExecutionStats
- B. allPlansExecution
- C. executionStats
- D. queryPlanner
Answer: D
NEW QUESTION # 44
Which of the following aggregation commands in MongoDB does not support sharded collections?
- A. mapReduce
- B. aggregate
- C. All of the above
- D. group
Answer: D
NEW QUESTION # 45
Addding the index {a:l} can potentially decrease the speed of which of the following operations? Check all that apply.
- A. db.collection.insert( { a:341})
- B. db.collection.update({b:456>, {$inc: {a:l> })
- C. db.collection.find( {a : 232} )
Answer: A,B
NEW QUESTION # 46
Which of the following is true of the mechanics of replication in MongoDB? Check all that apply.
- A. Clients read from the nearest member of a replica ser by default
- B. Members of a replica set may replicate data from any other data-bearing member of the set by default
- C. Operations on the primary are recorded in a capped collection called the oplog
Answer: C
NEW QUESTION # 47
What is the first task that a secondary would perform on being prompted by another secondary for an election?
- A. Vote for the first secondary so that it would become the next primary
- B. Vote for itself and then call for election
- C. Connect to primary to confirm its availability
- D. Start the election process for primary
Answer: C
NEW QUESTION # 48
Which of the following are valid json documents? Select all that apply.
- A. { }
- B. {"a":l, "b":{"b":l, "c":"foo", "d":"bar", "e":[l,2,4]}}
- C. {"city":"New York", "population", 7999034, boros:{"queens", "manhattan", "staten island", "the bronx", u "brooklyn"}}
- D. {"name":"Fred Flintstone";"occupation":"Miner";"wife":"Wilma"}
Answer: A,B
NEW QUESTION # 49
What is the use of mongodump and mongorestore tools?
- A. performance tune mongodb deployment
- B. audit mongodb deployment
- C. backup mongodb deployment
- D. replicate mongodb deployments
Answer: C
NEW QUESTION # 50
JSON stands for
- A. None of the above
- B. JavaScript Object Notation
- C. JavaScript Object Notice
- D. JavaScript Object Naming
Answer: B
NEW QUESTION # 51
Which of the following is a valid insert statement in mongodb? Select all valid.
- A. db.test.insert{"x":2, "y":"apple"})
- B. db.test.insert({x:2,y:"apple"})
- C. db.test.push({x:2,y:"apple"})
- D. db.test.insert({x:2},{y:"apple"})
Answer: A,B
NEW QUESTION # 52
Consider the following documents:
You perform the following query;
How many documents will be updated by the query?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
Answer: B
NEW QUESTION # 53
What is the output of following two commands in MongoDB: db. posts. insert({n_id":l}) db.posts.insert({"_id":l})
- A. It will insert two documents and throw a warning to the user
- B. MongoDB will automatically increment the _id of the second document as 2
- C. This will throw a duplicate key error
- D. Two documents will be inserted with _id as 1
Answer: C
NEW QUESTION # 54
Which features of relational database management systems were deliberately omitted in MongoDB and help us to obtain horizontal scalability? Check all that apply.
- A. Joins
- B. Multi-statement transactions
- C. Authentication
Answer: A,B
NEW QUESTION # 55
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( [{ $group: { _id: { state: Estate", city: n$city" },pop: { $sum: "$pop" } } }] )
- B. db.population.aggregate( [{ $group: { _id: { state: Estate", city: "$city" },pop: { $pop: 1 } } }] )
- C. db.population.aggregate( [{ $group: { _id: { city: "$city" },pop: { $sum: "$pop" } } }] )Multi Document Transaction is not supported by MongoDB
- D. db.population.aggregate( [{ $group: { _id: { state: "$state", city; "$city" },pop: { $sum: 1 > > >] )
Answer: A
NEW QUESTION # 56
Which of the following is incorrect statement about find and findOne operations in MongoDB?
- A. findQ and findOneQ returns cursors to the collection documents
- B. findQ returns all the documents in a collection while findOne() retrieves only the first one.
- C. findOneQ returns the actual first document retrieved from a collection
- D. find.limit(l) is not the same query as findOne()
Answer: A
NEW QUESTION # 57
Which node in a replica set does accept write operation?
- A. arbiter
- B. secondary
- C. primary
- D. hidden
Answer: C
NEW QUESTION # 58
Which of the following about Capped Collections is correct?
- A. High-throughput operations that insert and retrieve documents based on insertion order
- B. If the allocated space for a capped collection exceeds, it stops inserting new documents
- C. Only "Fixed Size" and "High-throughput operations that insert and retrieve documents based on insertion order"
- D. Fixed Size
Answer: C
NEW QUESTION # 59
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The Best MongoDB C100DBA Study Guides and Dumps of 2023: https://www.dumpexams.com/C100DBA-real-answers.html
C100DBA Certification Overview Latest C100DBA PDF Dumps: https://drive.google.com/open?id=1NufUyG041lp7yKntSexKzrUGH190OdKH