This page was exported from IT Certification Exam Braindumps [ http://blog.braindumpsit.com ] Export date:Tue Apr 15 9:51:14 2025 / +0000 GMT ___________________________________________________ Title: MongoDB C100DBA Deluxe Study Guide with Online Test Engine [Q36-Q58] --------------------------------------------------- MongoDB C100DBA Deluxe Study Guide with Online Test Engine C100DBA dumps review - Professional Quiz Study Materials How could you focus on MongoDB C100DBA Certification Right here is the exam overview for MongoDB C100DBA Certification MongoDB C100DBA Certification: Get our snappy guide in the event that you don't have the opportunity to peruse all the page The MongoDB C100DBA certification exam is a challenging exam that aims at demonstrating the knowledge of administering and using MongoDB. The exam is designed to test your knowledge of administering, installing, configuring, monitoring, securing, and troubleshooting MongoDB. This article will cover the objectives that you should know for this certification along with some tips on how to pass it. MongoDB C100DBA Dumps is the latest and the most useful exam dumps for the MongoDB C100DBA certification exam.   NO.36 Consider a collection posts which has fields: Jd, post_text, post_author, post_timestamp, post_tags etc. Which of the following query retrieves ONLY the key named post_text from the first document retrieved?  db.posts.finOne({},{_id:0, post_text:1})  db.posts.findOne({post_text: 1})  db.posts.find({},{_id:Of post_text:1})  db.posts.finOne{},{post_text:l}) NO.37 What is the use of mongodump and mongorestore tools?  backup mongodb deployment  audit mongodb deployment  performance tune mongodb deployment  replicate mongodb deployments NO.38 Below is a sample document of “orders” collection $sortNO.39 Update If Correct is an approach for which of the following concepts in MongoDB:  Concurrency Control  Atomicity  Performance Management  Transaction Management NO.40 Which of the tags in a replica set configuration specify the operations to be read from the node with the least network latency?  netLatency  secondaryPreferred  nearest  primaryPreferred NO.41 Which are the ONLY ways to project portions of an array?  $slice  $  All of the above  $ elemMatch NO.42 In mongodb how do you update a document partially?  $project  $update  $modify  $set NO.43 A collection and a document in MongoDB is equivalent to which of the SQL concepts respectively?  Column and Row  Table and Row  Database and Table  Table and Column NO.44 What is the output of following two commands in MongoDB: db. posts. insert({n_id”:l}) db.posts.insert({“_id”:l})  Two documents will be inserted with _id as 1  MongoDB will automatically increment the _id of the second document as 2  This will throw a duplicate key error  It will insert two documents and throw a warning to the user NO.45 You have designed a web application with mongoDB. You have configured replication. The replica set is in place and function properly. What happens in case of failure?  Switchover needs to be done manually  Failover happens automatically  Switchover happens automatically  Failover needs to be done manually NO.46 The oplog (operations log) is a special capped collection that keeps a rolling record of all operations that modify the data stored in your databases. All the replica set members contain a copy of the oplog in the following collection:  <replicasetid>.oplog.rs  oplog.rs  <database>..oplog.rs  local.oplog.rs NO.47 What does the following query do when performed on the posts collection? db.posts.update({_id:l},{Title:This is post with ID 1″})  Syntax error  Replaces the complete document with _id as 1 with the document specified in second parameter  Updates the Title of the post  Updating a document is possible only with $set NO.48 Consider the following documents:You perform the following query;How many documents will be updated by the query?  0  1  2  3  5 NO.49 Which command can be used to rebuild the indexes on a collection in MongoDB?  db.collection.createlndex({relndex:l})  db.collection.reIndex({author:l})  db.collection.relndexQ  db.collection.createIndex({author:l}).reIndex() NO.50 Consider the following example document from the sample collection. All documents in this collection have the same schema.Which of the following queries will replace this with the document.  db.sample.update( { “_id” : 3 } , { “$set” : { “_id” : 7 , “c” : 4 > > )  db.sample.update( { “_id” : 3 > , { “_id” : 7 , “c” : 4 > , { “justOne” : true > ) / This operation cannot be done with a single query.  db.sample.update( { “_id” : 3 > , { “_id” : 7 , “c” : 4 , { “$unset” : [ “a” , “b” ] } } )  db.sample.update( { “_id” : 3 > , { “_id” : 7 , “c” : 4 > ) NO.51 Which of the following are valid json documents? Select all that apply.  {“a”:l, “b”:{“b”:l, “c”:”foo”, “d”:”bar”, “e”:[l,2,4]}}  {“city”:”New York”, “population”, 7999034, boros:{“queens”, “manhattan”, “staten island”, “the bronx”, u “brooklyn”}}  {“name”:”Fred Flintstone”;”occupation”:”Miner”;”wife”:”Wilma”}  { } NO.52 Which of the following does MongoDB use to provide High Availability and fault tolerance?  Sharding  Indexing  Replication  Write Concern NO.53 Consider the following document from the products collection:What does the following query using $elemMatch return? db.products.find( { product_code: “345678” }, { variations: { $elemMatch: { size: ^L^ } } } )  Returns the complete document but retrieves only the size field from the array  Returns the document but with only one element in the variations array (corresponding to size L)  Returns the complete document since MongoDB does not support partial array retrieval  Returns the complete document but retrieves only the size field from the array and also with only one element in the variations array (corresponding to size L) NO.54 In a sharded replicas set environment with multiple mongos servers, which of the following would decide the mongos failover?  mongos  mongo shell  individual language drivers  mongod NO.55 Which type of indexes does MongoDB support?  All of the above  Compound Indexes  Multikey Indexes  Geospatial Indexes NO.56 What does the following aggregate query perform?  Fetches the posts with likes between 100 and 200 and sets their _id as null  Groups the posts by number of likes (101, 102, 103.) by adding 1 every time  Calculates the number of posts with likes between 100 and 200  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 NO.57 What does the following $slice query return using the following command? db.posts.find( {}, { comments: {$slice: [ -10, 5 ] } } )  Returns 5 comments, beginning with the last 10 items  Returns 10 comments, beginning with the last  Returns 10 comments, beginning with the first  Returns 5 comments, beginning with the first 10 items NO.58 In what format does mongodump creates backup files?  BSON  JSON  SOAP  XML  Loading … Exam Questions Answers Braindumps C100DBA Exam Dumps PDF Questions: https://www.braindumpsit.com/C100DBA_real-exam.html --------------------------------------------------- Images: https://blog.braindumpsit.com/wp-content/plugins/watu/loading.gif https://blog.braindumpsit.com/wp-content/plugins/watu/loading.gif --------------------------------------------------- --------------------------------------------------- Post date: 2023-04-12 09:21:45 Post date GMT: 2023-04-12 09:21:45 Post modified date: 2023-04-12 09:21:45 Post modified date GMT: 2023-04-12 09:21:45