C100DBA Dumps PDF New [2022] Ultimate Study Guide
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Should I Always Take the Exam Multiple Times?
Yes, it's recommended that you take the C100DBA MongoDB exam multiple times. This is because MongoDB has a few online test simulations and actual tests, and they're all very different. When taking the actual test, I recommend that you keep quiet during each question so that you can focus on answering each question looking for keywords, or looking for things like punctuation errors. The engine is a great way to practice the exam and is also the best place to discuss any pre-exam questions or concerns you may have. I think it's important to always be prepared for the exam and make sure you know all of the information needed for passing, so I would recommend that you take each practice test at least twice. The C100DBA MongoDB examination process can take up to 2 hours or more, so make sure you have plenty of time to spare. It's also recommended that you have at least 30 minutes of break time between each question so that you can relax and walk around a little bit if needed.
Payment fees can be paid by credit card only so if you do not have a credit card you will not be able to pay the fee and take the exam. Payment is required for all exams done through Codecademy, so please remember to pay before you start the exam. The size of the exam varies according to the residency and other factors. MongoDB C100DBA Dumps is the best way to understand the contents of this exam. This test will be held at a place and time designated by the employer. The exam will be made available if there are more than 60 applicants and the number of questions is not enough. If so, you will be notified about changes in the number of questions before taking your exam. It takes approximately 30 minutes to 1 hour to take the C100DBA MongoDB test, so make sure you have plenty of time before sitting for it if you haven't finished all of your prerequisites first. The maximum size of the test is 45 questions and the minimum size of the test is 30 questions. Depending on your answers, you will either pass or fail the C100DBA MongoDB exam. However, even if you fail it once, you can take it again at a later date.
Related MongoDB Certified Courses and Exams
This is the only entry level certification available for MongoDB. If you like to test your knowledge of MongoDB technology and want to take one exam, then this is the right option for you. It does not take much time to pass this certification exam. Previous experience in database administration or database programming is not required for this certification exam. Evaluation based on your performance. Real-time experience in MongoDB is not required for this certification exam. Certified you have the knowledge and experience of using MongoDB. Real-time experience in database administration or database programming is not required for this certification exam. Quote, which is the most popular option for MongoDB certification. Correct information about this exam. MongoDB C100DBA Dumps Check how to prepare for MongoDB C100DBA exam, which is the most popular option for certification preparation.
NEW QUESTION 67
A collection and a document in MongoDB is equivalent to which of the SQL concepts respectively?
- A. Table and Row
- B. Database and Table
- C. Column and Row
- D. Table and Column
Answer: A
NEW QUESTION 68
What is the output of the following program?
- A. 1s
- B. 60 s
- C. 100 ms
- D. 100 s
Answer: B
NEW QUESTION 69
Which of the following commands can cause the database to be locked?
- A. Map-reduce
- B. All of the above
- C. Issuing a query
- D. Inserting data
Answer: B
NEW QUESTION 70
We can insert multiple documents in bulk using which of the following operations:
- A. initializeUnorderedBulk
- B. initializeBulk
- C. initializeUnorderedBulkOp
- D. initializeBulkOp
Answer: C
NEW QUESTION 71
In order to ensure that you can maintain high availability in the face of server failure, you should implement which of the following?
- A. Properly defined user roles
- B. Sharding
- C. The proper storage engine
- D. Put indexes on all of your documents
- E. Replication
Answer: E
NEW QUESTION 72
What tool would you use if you want to save a gif file in mongo?
Answer:
Explanation:
mongofile
NEW QUESTION 73
Which of the following are common uses of the mongo shell? Check all that apply
- A. Perform administrative tasks
- B. Use as a JavaScript framework for your production system
- C. Perform queries against MongoDB collections
Answer: A,C
NEW QUESTION 74
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. Two documents will be inserted with _id as 1
- D. This will throw a duplicate key error
Answer: D
NEW QUESTION 75
Which of the documents below will be retrieved by the following query? Assume the documents are stored in a collection called "sample". Check all that apply.
db.sample.find( { "$or" : [ { "a" : { "$in" : [ 3, 10] > }, { "b" : { "$lt" : 2 > > ] > )
- A. {".Jd" :6, "a": 1, "c" :1, "b" :5}
- B. {".Jd" :: 1, "a": 0, "c" :: 0, "b": 2}
- C. { ''\Jd" :9, "a": 17, "c": 1, "b": 1}
- D. {''_Jd" :7, "a": 8, "c" :1, "b" :7}
- E. { \Jd" :10,"a": 3, "c": 1, "b": 1}
- F. {".Jd" :: 4, "a": 5, "c" :: 0, "b": 17}
- G. {".Jd" :: 5, "a": 3, "c" :: 0, "b": 12}
- H. {".Jd" :: 2, "a": 2, "c" :: 0, "b": 1}
- I. {".Jd" :: 8, "a": 11, "c": 1, "b": 0}
- J. {''__id" :3, "a": 4, "c" :0, "b" :14}
Answer: C,E,G,H,I
NEW QUESTION 76
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 77
If the value of totalKeysExamined is 30000 and the value of totalDocsExamined is 0, which of the following option is correct?
- A. None of the above
- B. The query returned 30000 documents after scanning the documents
- C. The query used an index to fetch the results
- D. The query returned 0 documents
Answer: C
NEW QUESTION 78
Which of the following is a valid insert statement in mongodb? Select all valid.
- A. db.test.push({x:2,y:"apple"})
- B. db.test.insert({x:2},{y:"apple"})
- C. db.test.insert{"x":2, "y":"apple"})
- D. db.test.insert({x:2,y:"apple"})
Answer: C,D
NEW QUESTION 79
Which of the following does MongoDB use to provide High Availability and fault tolerance?
- A. Indexing
- B. Sharding
- C. Write Concern
- D. Replication
Answer: D
NEW QUESTION 80
What does the output x of the following MongoDB aggregation query result into; db.posts.aggregate( [ {
$group: { _id; "$author", x: { $sum: $likes } } } ] )
- A. Average of likes on all the posts of an author, grouped by author
- B. Sum of likes on all the posts by an author, grouped by author
- C. Number of posts by an author
- D. Sum of likes on all the posts by all the authors
Answer: B
NEW QUESTION 81
Which mongodb tools allow us to work with our data in a human readable format?
- A. mongoimport
- B. mongostat
- C. mongoexport
- D. mongodump
Answer: A,C
NEW QUESTION 82
Which of the following operator can be used to limit the number of documents in an array field of a document after an update is performed?
- A. $removeFromSet
- B. None of the above
- C. $arrayLimit
- D. $push along with $each, $sort and $slice
Answer: D
NEW QUESTION 83
......
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