MongoDB Certified Developer Associate 2024 Practice Test

C100DEV Exam Format | Course Contents | Course Outline | Exam Syllabus | Exam Objectives

Exam Specification:

- Exam Name: C100DEV MongoDB Certified Developer Associate
- Exam Code: C100DEV
- Exam Duration: 90 minutes
- Exam Format: Multiple-choice questions
- Passing Score: 65% or higher

Course Outline:

1. Introduction to MongoDB and Data Modeling
- Overview of MongoDB and its key features
- Introduction to NoSQL databases and document-oriented data model
- Designing effective MongoDB data models

2. CRUD Operations and Querying MongoDB
- Performing create, read, update, and delete operations in MongoDB
- Querying data using MongoDB Query Language (MQL)
- Working with indexes and optimizing query performance

3. Aggregation Framework and Data Analysis
- Understanding the MongoDB Aggregation Framework
- Performing data analysis and complex aggregations
- Utilizing pipeline stages, operators, and expressions

4. Data Replication and High Availability
- Configuring replica sets for data replication and high availability
- Managing replica set elections and failover
- Implementing read preference and write concern

5. MongoDB Security and Performance Optimization
- Securing MongoDB deployments using authentication and authorization
- Implementing access controls and user management
- Monitoring and optimizing MongoDB performance

Exam Objectives:

1. Demonstrate knowledge of MongoDB fundamentals, including its data model and key features.
2. Perform CRUD operations and write queries using MongoDB Query Language.
3. Understand and utilize the MongoDB Aggregation Framework for data analysis.
4. Configure and manage MongoDB replica sets for data replication and high availability.
5. Implement MongoDB security measures and optimize performance.

Exam Syllabus:

The exam syllabus covers the following topics (but is not limited to):

- MongoDB fundamentals and data modeling
- CRUD operations and querying MongoDB
- Aggregation Framework and data analysis
- Data replication and high availability with replica sets
- MongoDB security and performance optimization

100% Money Back Pass Guarantee

C100DEV PDF Sample Questions

C100DEV Sample Questions

C100DEV Dumps
C100DEV Braindumps
C100DEV Real Questions
C100DEV Practice Test
C100DEV Actual Questions
killexams.com
MongoDB
C100DEV
MongoDB Certified Developer Associate 2024
https://killexams.com/pass4sure/exam-detail/C1000EV
Question: 269
In a MongoDB application where documents may contain various nested
structures, which BSON type would be most suitable for storing data that
includes both a list of items and metadata about those items?
A. Array
B. Object
C. String
D. Binary Data
Answer: B
Explanation: The Object BSON type is suitable for storing complex data
structures that include metadata alongside other data types, allowing for a
structured representation of nested information.
Question: 270
In a scenario where you manage "Products," "Orders," and "Customers," which
of the following data modeling choices is likely to create an anti-pattern by
introducing redundancy and complicating the update process for product
information?
A. Embedding product details within each order document
B. Storing orders and customers as separate collections with references to
products
C. Maintaining a separate "Product" collection linked to orders through product
IDs
D. Embedding customer information within order documents for quick access
Answer: A
Explanation: Embedding product details within each order document introduces
redundancy, as product information may be repeated for every order. This
complicates the update process and increases storage requirements, which is an
anti-pattern in data modeling.
Question: 271
In the MongoDB Python driver, how would you implement an aggregation
pipeline that calculates the average "price" for products grouped by "category"
in the "products" collection?
A. pipeline = [{ "$group": { "_id": "$category", "averagePrice": { "$avg":
"$price" } } }]
B. pipeline = [{ "group": { "category": "$category", "avgPrice": { "$avg":
"$price" } } }]
C. collection.aggregate([{ "$group": { "_id": "$category", "avgPrice": {
"$avg": "$price" } } }])
D. pipeline = [{ "$average": { "$group": { "_id": "$category", "price": "$price"
} } }]
Answer: C
Explanation: The correct syntax for the aggregation pipeline uses $group to
aggregate the results and calculate the average.
Question: 272
You need to enrich a dataset of users with their corresponding purchase history
from another collection. You plan to use the $lookup stage in your aggregation
pipeline. What will be the structure of the output documents after the $lookup
is executed?
A. Each user document will contain an array of purchase documents that match
the user ID.
B. Each purchase document will contain an array of user documents that match
the purchase ID.
C. Each user document will contain a single purchase document corresponding
to the user ID.
D. The output will flatten the user and purchase documents into a single
document.
Answer: A
Explanation: The $lookup stage allows you to join documents from one
collection into another, resulting in each user document containing an array of
purchase documents that match the user ID. Option B misrepresents the
direction of the join. Option C incorrectly assumes a one-to-one relationship.
Option D misunderstands how MongoDB handles joined data.
Question: 273
You need to replace an entire document in the inventory collection based on its
itemCode. The command you are executing is
db.inventory.replaceOne({itemCode: "A123"}, {itemCode: "A123", itemName:
"New Item", quantity: 50}). What will happen if the document does not exist?
A. A new document will be created with the given details.
B. The command will fail because the document must exist to be replaced.
C. The command will succeed, but no changes will be made since the
document is missing.
D. The command will log a warning but will not create a new document.
Answer: A
Explanation: The replaceOne command with upsert set to true (which is
implicit) will create a new document if no document matches the query.
However, since upsert is not specified, it will not create a new document in this
case.
Question: 274
In the context of MongoDB's aggregation framework, which of the following
operations can be performed using the aggregation pipeline in the MongoDB
driver?
A. Filtering documents based on specific criteria.
B. Grouping documents by a specific field and performing calculations.
C. Sorting the results of a query based on specified fields.
D. All of the above.
Answer: D
Explanation: The aggregation pipeline in MongoDB allows for filtering,
grouping, and sorting of documents, making it a powerful tool for data
transformation and analysis.
Question: 275
You need to delete a document from the users collection where the username is
"john_doe". The command you intend to use is db.users.deleteOne({username:
"john_doe"}). What happens if multiple documents match this criteria?
A. All documents with the username "john_doe" will be deleted.
B. Only the first document matching the criteria will be deleted.
C. The command will fail since multiple matches exist.
D. No documents will be deleted, and an error will occur.
Answer: B
Explanation: The deleteOne command removes only the first document that
matches the specified filter. Even if multiple documents match, only one will
be deleted.
Question: 276
You have a requirement to insert a document into the users collection with a
unique identifier. The command you execute is db.users.insertOne({userId:
"user001", name: "John Doe"}). If this command is repeated without removing
the existing document, which outcome will occur?
A. The command will succeed, and the existing document will be duplicated.
B. The command will fail due to a unique constraint violation on userId.
C. The existing document will be updated with the new name.
D. The command will throw an error indicating a missing required field.
Answer: B
Explanation: If userId is a unique field, attempting to insert a document with
the same userId will result in an error due to the unique constraint violation,
preventing the insertion.
Question: 277
In the MongoDB Go driver, what is the correct syntax for finding a single
document in the "employees" collection where the "employeeId" is 12345?
A. collection.FindOne(context.TODO(), bson.M{"employeeId": 12345})
B. collection.FindOne(context.TODO(), bson.D{{"employeeId", 12345}})
C. collection.FindOne(bson.M{"employeeId": 12345})
D. collection.Find(bson.M{"employeeId": 12345}).Limit(1)
Answer: B
Explanation: The FindOne method takes a filter as a parameter, and using
bson.D is a common way to construct the filter in the Go driver.
Question: 278
You have a collection called transactions with fields userId, transactionType,
and createdAt. A query is scanning through the collection to find all
transactions of a certain type and then sorts them by createdAt. What index
should you create to enhance performance?
A. { transactionType: 1, createdAt: 1 }
B. { createdAt: 1, userId: 1 }
C. { userId: 1, transactionType: -1 }
D. { transactionType: -1, createdAt: -1 }
Answer: A
Explanation: An index on { transactionType: 1, createdAt: 1 } allows efficient
filtering on transactionType while providing sorted results by createdAt, thus
avoiding a collection scan and optimizing query execution time.
Question: 279
In a MongoDB collection where some documents include nested arrays, which
query operator would be most effective in retrieving documents based on a
specific condition related to the elements of those nested arrays?
A. $unwind
B. $or
C. $not
D. $where
Answer: A
Explanation: The $unwind operator is specifically designed to deconstruct an
array field from the input documents to output a document for each element,
making it effective for querying nested arrays based on specific conditions.
Question: 280
When utilizing the MongoDB C# driver, which of the following methods
would you employ to bulk insert multiple documents efficiently, taking
advantage of the driver's capabilities?
A. InsertManyAsync()
B. BulkWrite()
C. InsertAll()
D. AddRange()
Answer: B
Explanation: The BulkWrite() method is designed for efficiently performing
bulk operations, including inserts, updates, and deletes, in a single call, which
improves performance.
Question: 281
When querying a MongoDB collection where documents may contain an array
of sub-documents, which of the following methods or operators would be most
effective for retrieving documents based on a condition applied to an element
within the array?
A. $exists
B. $elemMatch
C. $type
D. $size
Answer: B
Explanation: The $elemMatch operator allows for precise querying of
documents by applying conditions to elements within an array. This is
particularly effective when dealing with complex data structures that include
arrays of sub-documents.
Question: 282
You have a collection named orders that contains documents with fields
customerId, amount, and status. You execute the following query:
db.orders.find({ status: 'completed' }).sort({ amount: -1 }).limit(5). Given that
amount values are non-unique, what will be the expected output format when
you retrieve the documents?
A. An array of the top 5 completed orders with the highest amounts, sorted in
descending order by amount.
B. An array of all completed orders regardless of amount, sorted in ascending
order.
C. A single document representing the highest completed order only.
D. An empty array if there are no completed orders.
Answer: A
Explanation: The query filters for completed orders, sorts them by amount in
descending order, and limits the results to 5 documents, thus returning the top 5
completed orders based on amount.
Question: 283
In a complex aggregation pipeline, you observe that certain stages are
significantly slower than others. If you find that a stage is not utilizing an
index, which of the following options would be the best initial step to
investigate and potentially resolve this performance bottleneck?
A. Increase the size of the aggregation pipeline
B. Analyze the query with the explain() method to check index usage
C. Rewrite the aggregation pipeline to simplify its stages
D. Increase the server's hardware resources
Answer: B
Explanation: Using the explain() method provides insights into how the
aggregation stages are executed and whether indexes are being utilized. This
information is crucial for identifying potential issues and optimizing
performance.
Question: 284
In a music library application with "Artists," "Albums," and "Tracks," where
each artist can produce multiple albums and each album can contain multiple
tracks, which of the following data modeling approaches would likely lead to
redundancy and inefficiencies in retrieving album and track information?
A. Embedding track details within album documents
B. Storing artists and albums in separate collections linked by artist IDs
C. Keeping all entities in a single collection for ease of access
D. Maintaining a separate collection for tracks linked to albums through IDs
Answer: C
Explanation: Keeping all entities in a single collection for ease of access can
lead to redundancy and inefficiencies in retrieving album and track information.
This anti-pattern complicates data retrieval and can hinder the performance of
the application.

Killexams VCE Exam Simulator 3.0.9

Download Killexams-Exam-Simulator-3.0.9.rar

Killexams has introduced Online Test Engine (OTE) that supports iPhone, iPad, Android, Windows and Mac. C100DEV Online Testing system will helps you to study and practice using any device. Our OTE provide all features to help you memorize and practice test questions and answers while you are travelling or visiting somewhere. It is best to Practice C100DEV Exam Questions so that you can answer all the questions asked in test center. Our Test Engine uses Questions and Answers from Actual MongoDB Certified Developer Associate 2024 exam.

              

A perfect key to success with these C100DEV Question Bank

Killexams.com's exam prep Free Exam PDF serves everyone who needs to pass the C100DEV exam, including C100DEV Question Bank, which you can easily make your study guide, and VCE exam simulator that you can use to practice and memorize the C100DEV Free Exam PDF. Our MongoDB C100DEV Mock Exam questions are precisely the same as the actual exam.

Latest 2024 Updated C100DEV Real Exam Questions

In [YEAR], C100DEV underwent numerous changes and upgrades, and we have ensured that all of these updates have been incorporated into our Real Exam Questions. By utilizing our updated C100DEV braindumps, you can guarantee your success in the actual exam. We strongly recommend that you go through the entire question bank at least once before taking the test. This is not solely because our boot camp for C100DEV is widely used, but also because candidates have reported a genuine improvement in their knowledge and understanding of the subject matter. As a result, they are able to work as professionals in a real-world setting within an organization. Our primary objective is not just to help you pass the C100DEV exam with our braindumps, but also to enhance your knowledge of C100DEV topics and objectives, which is critical for achieving success. In general, C100DEV typically undergoes a variety of adjustments and upgrades each year, and we have ensured that all of the updates have been incorporated into our Real Exam Questions. With our updated C100DEV braindumps, success in the actual exam is practically guaranteed. It is strongly recommended that you review the entire question bank at least once prior to taking the test. The reason for this is not only because of the widespread use of our boot camp for C100DEV, but also because individuals have reported an improvement in their knowledge and understanding of the subject matter. They are able to work in a professional capacity in a real-world setting within an organization. Our focus is not solely on helping you pass the C100DEV exam with our braindumps, but also on improving your understanding of C100DEV topics and objectives. This is the key to achieving success.

Up-to-date Syllabus of MongoDB Certified Developer Associate 2024

There are huge number of people that pass C100DEV exam with our Latest Questions. It is very rare that you read and practice our C100DEV PDF Download questions and get poor marks or fail in real exam. Competitors feel an incredible lift in their insight and finish C100DEV test with next to no issue. It is extremely simple to breeze through C100DEV test with our dumps however we need you to further develop your insight so you perceive all the inquiries in the test. In such a manner, individuals can work in a truly modern climate as a specialist. We do not just focus on breezing through C100DEV test with our dumps, but really further develop information on C100DEV targets. This is the reason, individuals trust our C100DEV Practice Questions. Features of Killexams C100DEV PDF Download
-> Instant C100DEV PDF Download download Access
-> Comprehensive C100DEV Questions and Answers
-> 98% Success Rate of C100DEV Exam
-> Guaranteed Actual C100DEV exam questions
-> C100DEV Questions Updated on Regular basis.
-> Valid and [YEAR] Updated C100DEV Exam Dumps
-> 100% Portable C100DEV Exam Files
-> Full featured C100DEV VCE Exam Simulator
-> No Limit on C100DEV Exam Download Access
-> Great Discount Coupons
-> 100% Secured Download Account
-> 100% Confidentiality Ensured
-> 100% Success Guarantee
-> 100% Free PDF Questions sample Questions
-> No Hidden Cost
-> No Monthly Charges
-> No Automatic Account Renewal
-> C100DEV Exam Update Intimation by Email
-> Free Technical Support Exam Detail at : https://killexams.com/killexams/exam-detail/C100DEV Pricing Details at : https://killexams.com/exam-price-comparison/C100DEV See Complete List : https://killexams.com/vendors-exam-list Discount Coupon on Full C100DEV PDF Download Exam Questions; WC2020: 60% Flat Discount on each exam PROF17: 10% Further Discount on Value Greater than $69 DEAL17: 15% Further Discount on Value Greater than $99

Tags

C100DEV Practice Questions, C100DEV study guides, C100DEV Questions and Answers, C100DEV Free PDF, C100DEV TestPrep, Pass4sure C100DEV, C100DEV Practice Test, Download C100DEV Practice Questions, Free C100DEV pdf, C100DEV Question Bank, C100DEV Real Questions, C100DEV Mock Test, C100DEV Bootcamp, C100DEV Download, C100DEV VCE, C100DEV Test Engine

Killexams Review | Reputation | Testimonials | Customer Feedback

The killexams.com website provides solid exam material and is a great asset for anyone preparing for the C100DEV exam. I have visited several other sites, but killexams.com Dumps for C100DEV is honestly up to the mark. Thanks to killexams.com and the exam simulator, I passed the C100DEV exam with ease. The questions and answers are valid and reliable, and I have already shared my views with colleagues.
Lee [2024-4-11]


One of the best IT exam practices I have ever encountered is killexams.com, and it helped me pass my C100DEV exam with ease. The questions are not only actual, but they are also structured the way C100DEV does it, making it easy to recall the answers during the exam. While not all questions are identical, many of them are similar, so if you follow killexams.com materials correctly, you should have no trouble sorting it out. This platform is very helpful for IT professionals like me.
Martha nods [2024-6-7]


I proudly announce that I passed the C100DEV exam with 89% marks. It wasn't just a smooth pass but a great achievement for me. I prepared for the exam with killexams.com and their practice test, and it proved to be an excellent way to prepare for the exam. Every question I encountered in the exam was precisely what killexams.com had provided in their brain dump. I highly recommend this platform to everyone who is taking the C100DEV exam.
Lee [2024-6-1]

More C100DEV testimonials...

C100DEV Exam

User: Pavel***** As an IT professional, I need to keep my skills sharp, but balancing my responsibilities is challenging. Thankfully, Killexams.com practice tests offered an organized and comprehensive question-and-answer guide that helped me prepare for C100DEV within my busy schedule.

User: Henry***** I passed the c100dev certification exam with 91% marks, and I owe it to killexams.com practice tests, which are very similar to the real exam. Thank you for your high-quality assistance. I will continue to use your practice tests for my future certifications. I was hopeless about becoming an IT certified, but my friend told me about killexams.com. I used their online tools for my c100dev exam preparation and scored 91 in the exam. I owe thanks to killexams.com.

User: Carla***** Preparing for the C100DEV exam has been a daunting task with several confusing topics to cover. However, Killexams.com provided me with the confidence I needed to pass the exam by taking me through core questions on the subject. My efforts paid off, and I passed the exam with an impressive 84%. Although a few questions were twisted, the answers from Killexams.com helped me mark the right ones.

User: Pedro***** If you are concerned about your c100dev certification, I strongly recommend that you come to killexams.com to alleviate all your fears. They offer great products for practice, which were extremely helpful to me. The c100dev exam engine boosted my self-confidence, and I am now feeling proud of my success. Hats off to Killexams and their incredible offerings for all students and professionals!

User: Manuela***** Preparing for the exam can be an intricate job, and without appropriate guidance, you will likely fail. That is why the book provided by the platform is so valuable. It provides efficient and useful data that not only enhances your practice but also gives you a clear chance of passing the exam and getting into any university without any problem. I prepared through this awesome software and scored high, so I can assure you that it will not let you down.

C100DEV Exam

References

Frequently Asked Questions about Killexams Practice Tests

Should I try this wonderful source of actual questions?
We recommend experiencing killexams brainpractice questions and study guides for your C100DEV exam because these C100DEV exam practice questions are specially collected to ease the C100DEV exam questions when asked in the actual test. You will get good scores on the exam.

Is Killexams.com Legit?

Of course, Killexams is fully legit along with fully reliable. There are several benefits that makes killexams.com real and authentic. It provides current and practically valid exam dumps filled with real exams questions and answers. Price is minimal as compared to almost all the services online. The questions and answers are updated on standard basis utilizing most recent brain dumps. Killexams account build up and item delivery is quite fast. Data downloading can be unlimited and fast. Aid is available via Livechat and Email. These are the characteristics that makes killexams.com a sturdy website that offer exam dumps with real exams questions.

Other Sources

C100DEV - MongoDB Certified Developer Associate 2024 study help
C100DEV - MongoDB Certified Developer Associate 2024 information hunger
C100DEV - MongoDB Certified Developer Associate 2024 teaching
C100DEV - MongoDB Certified Developer Associate 2024 Practice Questions
C100DEV - MongoDB Certified Developer Associate 2024 study help
C100DEV - MongoDB Certified Developer Associate 2024 cheat sheet
C100DEV - MongoDB Certified Developer Associate 2024 Real Exam Questions
C100DEV - MongoDB Certified Developer Associate 2024 study help
C100DEV - MongoDB Certified Developer Associate 2024 exam
C100DEV - MongoDB Certified Developer Associate 2024 Exam Questions
C100DEV - MongoDB Certified Developer Associate 2024 education
C100DEV - MongoDB Certified Developer Associate 2024 study tips
C100DEV - MongoDB Certified Developer Associate 2024 learning
C100DEV - MongoDB Certified Developer Associate 2024 dumps
C100DEV - MongoDB Certified Developer Associate 2024 cheat sheet
C100DEV - MongoDB Certified Developer Associate 2024 answers
C100DEV - MongoDB Certified Developer Associate 2024 dumps
C100DEV - MongoDB Certified Developer Associate 2024 exam format
C100DEV - MongoDB Certified Developer Associate 2024 outline
C100DEV - MongoDB Certified Developer Associate 2024 Exam Questions
C100DEV - MongoDB Certified Developer Associate 2024 exam format
C100DEV - MongoDB Certified Developer Associate 2024 exam
C100DEV - MongoDB Certified Developer Associate 2024 Free PDF
C100DEV - MongoDB Certified Developer Associate 2024 Free PDF
C100DEV - MongoDB Certified Developer Associate 2024 PDF Download
C100DEV - MongoDB Certified Developer Associate 2024 outline
C100DEV - MongoDB Certified Developer Associate 2024 Questions and Answers
C100DEV - MongoDB Certified Developer Associate 2024 Study Guide
C100DEV - MongoDB Certified Developer Associate 2024 education
C100DEV - MongoDB Certified Developer Associate 2024 real questions
C100DEV - MongoDB Certified Developer Associate 2024 syllabus
C100DEV - MongoDB Certified Developer Associate 2024 information hunger
C100DEV - MongoDB Certified Developer Associate 2024 book
C100DEV - MongoDB Certified Developer Associate 2024 learn
C100DEV - MongoDB Certified Developer Associate 2024 Questions and Answers
C100DEV - MongoDB Certified Developer Associate 2024 questions
C100DEV - MongoDB Certified Developer Associate 2024 Questions and Answers
C100DEV - MongoDB Certified Developer Associate 2024 dumps
C100DEV - MongoDB Certified Developer Associate 2024 Actual Questions
C100DEV - MongoDB Certified Developer Associate 2024 Practice Questions
C100DEV - MongoDB Certified Developer Associate 2024 braindumps
C100DEV - MongoDB Certified Developer Associate 2024 Question Bank
C100DEV - MongoDB Certified Developer Associate 2024 braindumps
C100DEV - MongoDB Certified Developer Associate 2024 Free PDF

Which is the best testprep site of 2024?

There are several Questions and Answers provider in the market claiming that they provide Real Exam Questions, Braindumps, Practice Tests, Study Guides, cheat sheet and many other names, but most of them are re-sellers that do not update their contents frequently. Killexams.com is best website of Year 2024 that understands the issue candidates face when they spend their time studying obsolete contents taken from free pdf download sites or reseller sites. That is why killexams update Exam Questions and Answers with the same frequency as they are updated in Real Test. Testprep provided by killexams.com are Reliable, Up-to-date and validated by Certified Professionals. They maintain Question Bank of valid Questions that is kept up-to-date by checking update on daily basis.

If you want to Pass your Exam Fast with improvement in your knowledge about latest course contents and topics, We recommend to Download PDF Exam Questions from killexams.com and get ready for actual exam. When you feel that you should register for Premium Version, Just choose visit killexams.com and register, you will receive your Username/Password in your Email within 5 to 10 minutes. All the future updates and changes in Questions and Answers will be provided in your Download Account. You can download Premium Exam questions files as many times as you want, There is no limit.

Killexams.com has provided VCE Practice Test Software to Practice your Exam by Taking Test Frequently. It asks the Real Exam Questions and Marks Your Progress. You can take test as many times as you want. There is no limit. It will make your test prep very fast and effective. When you start getting 100% Marks with complete Pool of Questions, you will be ready to take Actual Test. Go register for Test in Test Center and Enjoy your Success.

Important Links for best testprep material

Below are some important links for test taking candidates

Medical Exams
Financial Exams
Language Exams
Entrance Tests
Healthcare Exams
Quality Assurance Exams
Project Management Exams
Teacher Qualification Exams
Banking Exams Request an Exam
Search Any Exam

100% Money Back Pass Guarantee

Back to List

Social Profiles

Slashdot | Reddit | Tumblr | Vk | Pinterest | Youtube