Latest PDF of C100DEV: MongoDB Certified Developer Associate 2025

MongoDB Certified Developer Associate 2025 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 syllabus (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 trial Questions

C100DEV trial Questions

C100DEV Dumps C100DEV Braindumps C100DEV real questions C100DEV practice test C100DEV genuine Questions
killexams.com MongoDB C100DEV
MongoDB Certified Developer Associate 2025
https://killexams.com/pass4sure/exam-detail/C1000EV
and then calls limit.
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?
rray bject ring
inary Data wer: B
anation: The Object BSON type is suitable for storing complex data tures that include metadata alongside other data types, allowing for a tured representation of nested information.
stion: 270
cenario where you manage "Products," "Orders," and "Customers," w following data modeling choices is likely to create an anti-pattern b
ducing redundancy and complicating the update process for product mation?
A
O
St
B
Ans Expl
struc struc
Que
In a s hich
of the y
intro infor
1. Embedding product details within each order document
2. Storing orders and customers as separate collections with references to products
3. Maintaining a separate "Product" collection linked to orders through product IDs
4. 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.
MongoDB Python driver, how would you implement an aggregation ine that calculates the average "price" for products grouped by "categ "products" collection?
peline = [{ "$group": { "_id": "$category", "averagePrice": { "$avg": ce" } } }]
peline = [{ "group": { "category": "$category", "avgPrice": { "$avg": ce" } } }]
ollection.aggregate([{ "$group": { "_id": "$category", "avgPrice": { g": "$price" } } }])
peline = [{ "$average": { "$group": { "_id": "$category", "price": "$p
wer: C
anation: The correct syntax for the aggregation pipeline uses $group t egate the results and calculate the average.
Question: 271
In the
pipel ory"
in the
1. pi "$pri
2. pi "$pri
3. c "$av
4. pi rice"
} } }]
Ans
Expl o
aggr
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?
1. Each user document will contain an array of purchase documents that match the user ID.
2. Each purchase document will contain an array of user documents that match the purchase ID.
3. Each user document will contain a single purchase document corresponding to the user ID.
ment. wer: A
anation: The $lookup stage allows you to join documents from one ction into another, resulting in each user document containing an arra hase documents that match the user ID. Option B misrepresents the tion of the join. Option C incorrectly assumes a one-to-one relationsh on D misunderstands how MongoDB handles joined data.
stion: 273
eed to replace an entire document in the inventory collection based o Code. The command you are executing is ventory.replaceOne({itemCode: "A123"}, {itemCode: "A123", itemN
Item", quantity: 50}). What will happen if the document does not ex
new document will be created with the given details.
The output will flatten the user and purchase documents into a single docu
Ans Expl
colle y of
purc
direc ip.
Opti
Que
You n n its
item
db.in ame:
"New ist?
1. A
2. The command will fail because the document must exist to be replaced.
3. The command will succeed, but no changes will be made since the document is missing.
4. 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
ations can be performed using the aggregation pipeline in the Mongo driver?
iltering documents based on specific criteria.
rouping documents by a specific field and performing calculations. orting the results of a query based on specified fields.
ll of the above. wer: D
anation: The aggregation pipeline in MongoDB allows for filtering, ping, and sorting of documents, making it a powerful tool for data formation and analysis.
stion: 275
eed to delete a document from the users collection where the userna n_doe". The command you intend to use is db.users.deleteOne({usern
In the context of MongoDB's aggregation framework, which of the following oper DB
1. F
2. G
3. S
4. A
Ans Expl
grou trans
Que
You n me is
"joh ame:
"john_doe"}). What happens if multiple documents match this criteria?
1. All documents with the username "john_doe" will be deleted.
2. Only the first document matching the criteria will be deleted.
3. The command will fail since multiple matches exist.
4. 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
ave a requirement to insert a document into the users collection with ue identifier. The command you execute is db.users.insertOne({userId r001", name: "John Doe"}). If this command is repeated without remo xisting document, which outcome will occur?
he command will succeed, and the existing document will be duplicat he command will fail due to a unique constraint violation on userId. he existing document will be updated with the new name.
he command will throw an error indicating a missing required field. wer: B
anation: If userId is a unique field, attempting to insert a document wi ame userId will result in an error due to the unique constraint violatio enting the insertion.
stion: 277
You h a
uniq :
"use ving
the e
1. T ed.
2. T
3. T
4. T
Ans
Expl th
the s n,
prev
Que
In the MongoDB Go driver, what is the correct syntax for finding a single document in the "employees" collection where the "employeeId" is 12345?
1. collection.FindOne(context.TODO(), bson.M{"employeeId": 12345})
2. collection.FindOne(context.TODO(), bson.D{{"employeeId", 12345}})
3. collection.FindOne(bson.M{"employeeId": 12345})
4. 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
ave a collection called transactions with fields userId, transactionTy reatedAt. A query is scanning through the collection to find all actions of a certain type and then sorts them by createdAt. What inde ld you create to enhance performance?
ransactionType: 1, createdAt: 1 }
reatedAt: 1, userId: 1 }
serId: 1, transactionType: -1 }
ransactionType: -1, createdAt: -1 } wer: A
anation: An index on { transactionType: 1, createdAt: 1 } allows effic ing on transactionType while providing sorted results by createdAt, th ding a collection scan and optimizing query execution time.
stion: 279
You h pe,
and c
trans x
shou
1. { t
2. { c
3. { u
4. { t
Ans
Expl ient
filter us
avoi
Que
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?
1. $unwind
2. $or
3. $not
4. $where Answer: A
stion: 280
When utilizing the MongoDB C# driver, which of the following methods d you employ to bulk insert multiple documents efficiently, taking ntage of the driver's capabilities?
nsertManyAsync() ulkWrite() sertAll() ddRange()
wer: B
anation: The BulkWrite() method is designed for efficiently performi perations, including inserts, updates, and deletes, in a single call, wh
oves performance.
stion: 281
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.
Que
woul adva
1. I
2. B
3. In
4. A
Ans
Expl ng
bulk o ich
impr
Que
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?
1. $elemMatch
2. $type
3. $size Answer: B
cularly effective when dealing with complex data structures that inclu s of sub-documents.
stion: 282
ave a collection named orders that contains documents with fields omerId, amount, and status. You execute the following query: rders.find({ status: 'completed' }).sort({ amount: -1 }).limit(5). Given unt values are non-unique, what will be the expected output format w etrieve the documents?
n array of the top 5 completed orders with the highest amounts, sorte ending order by amount.
n array of all completed orders regardless of amount, sorted in ascend
single document representing the highest completed order only. n empty array if there are no completed orders.
Explanation: The $elemMatch operator allows for precise querying of documents by applying conditions to elements within an array. This is
parti de
array
Que
You h cust
db.o that
amo hen
you r
1. A d in
desc
2. A ing
order.
3. A
4. A
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.
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?
1. Increase the size of the aggregation pipeline
ewrite the aggregation pipeline to simplify its stages ncrease the server's hardware resources
wer: B
anation: Using the explain() method provides insights into how the egation stages are executed and whether indexes are being utilized. T mation is crucial for identifying potential issues and optimizing ormance.
stion: 284
usic library application with "Artists," "Albums," and "Tracks," whe artist can produce multiple albums and each album can contain multi s, which of the following data modeling approaches would likely lead ndancy and inefficiencies in retrieving album and track information?
mbedding track details within album documents
Analyze the query with the explain() method to check index usage
2. R
3. I
Ans Expl
aggr his
infor perf
Que
In a m re
each ple
track to
redu
1. E
2. Storing artists and albums in separate collections linked by artist IDs
3. Keeping all entities in a single collection for ease of access
4. Maintaining a separate collection for tracks linked to albums through IDs Answer: C
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 Q&A 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 genuine MongoDB Certified Developer Associate 2025 exam.

Killexams Online Test Engine Test Screen

Killexams Online Test Engine Progress Chart

Killexams Online Test Engine Test History Graph

Killexams Online Test Engine Performance History

Killexams Online Test Engine Result Details

Online Test Engine maintains performance records, performance graphs, explanations and references (if provided). Automated test preparation makes much easy to cover complete pool of questions in fastest way possible. C100DEV Test Engine is updated on daily basis.

Get C100DEV exam PDF Questions containing Valid genuine inquiries

There may be C100DEV Exam Questions from which MongoDB selects a variety of questions for you to answer in the real MongoDB Certified Developer Associate 2025 exam. We provide the complete pool of C100DEV questions so that you do not miss any question in the genuine MongoDB Certified Developer Associate 2025 exam. You can obtain 100% free Free PDF before deciding to register for a full copy of C100DEV Test Prep.

Latest 2025 Updated C100DEV Real exam Questions

There are numerous providers of Free exam PDF available online, but a large percentage of them offer outdated C100DEV Exam Cram. It is crucial to find a reliable and trustworthy C100DEV Premium Questions and Ans supplier online. One option worth considering is killexams.com. However, it's important to keep in mind that your search for the right provider should not result in a waste of time and money. Take advantage of the opportunity to obtain 100% free C100DEV Premium Questions and Ans and evaluate the trial C100DEV questions. Afterward, register and obtain the latest and valid C100DEV Exam Cram that includes real exam questions and answers. Additionally, you should obtain excellent discount coupons and the C100DEV VCE exam simulator for your training. With the ability to obtain C100DEV Premium Questions and Ans PDF onto any mobile device or computer, studying the genuine C100DEV questions is possible even during leisure time or travel. This can help utilize your free time and increase the number of opportunities to study C100DEV questions. Practice with the C100DEV Exam Cram using the VCE exam simulator repeatedly until you achieve a perfect score. Once confident, head directly to the examination center for the genuine C100DEV exam.

Killexams Review | Reputation | Testimonials | Customer Feedback

I want to thank you for helping me pass my C100DEV Exam. I subscribed to your study materials and was able to achieve a score of 90%. I couldn't have done it without your great support, and I wanted to share my success on your website. Thank you once again for everything.
Lee [2025-5-26]

I want to give my vote of confidence to killexams.com for their exceptional exam preparation materials. I used their kit to prepare for my C100DEV exam and was impressed with the comprehensiveness of their syllabus coverage. I felt confident on exam day and was surprised to find that the questions on the real exam were similar to those in the killexams.com guide. I strongly recommend their products.
Martha nods [2025-6-26]

I struggled during my preparation for the C100DEV exam and sought help from friends, but the material they provided was confusing. Later, I found killexams.com and their Q&A material. The treasure trove of information helped me understand everything from top to bottom, and I answered all the questions with perfect options. Thank you for bringing endless happiness to my profession.
Martin Hoax [2025-5-7]

More C100DEV testimonials...

C100DEV Exam

User: Doreen*****

When I joined Killexams.com, it felt like the best journey of my life. I was thrilled because I knew that I would pass my c100dev exam and become the first person in my organization to have this qualification. With the help of the online resources on this platform, I passed my c100dev exam and made everyone proud. I suggest that other students who want to feel the same way should give Killexams.com a try.

User: Pedro*****

I passed the c100dev certification exam with the help of the Q&A provided by Killexams.com. However, it is essential to remember that just remembering the Q&A is not enough to pass the exam. There were many questions that were not in the provided practice tests, but I was able to answer them easily because of my preparation with Killexams.com.

User: Luna*****

My initial view of the c100dev exam fee guide was negative, as I preferred learning through a classroom-based approach. I joined a specific school, but it all seemed fake to me, and I quit soon after. I then did some research and finally changed my thinking, trying the c100dev exam samples from Killexams.com. It gave me the high scores in the exam, and I am happy to have done so.

User: Venera*****

I am thrilled to announce that I passed my C100DEV exam last week and even passed another exam this month. Many people agree that practice tests are a great way to study, whether Its for the exam or for improving your knowledge. During my exams, I encountered many questions, and I was pleased to know that I knew all the answers.

User: Helena*****

I want to express my gratitude to killexams.com for providing complete help through their questions and answers. I scored 78% on my c100dev exam, thanks to killexams.com.

C100DEV Exam

Question: I need an exam that is not at killexams store, what should I do?
Answer: Killexams provide more than 5500 exams on its online store with a very high success rate. If you need an exam that is not provided at the killexams store, you can place an exam request at killexams.com at https://killexams.com/exam-request and our team will contact authentic resources to get exact questions and answers. You will be informed by email as soon as that exam is provided at the killexams store.

Question: Does killexams PDF and VCE contain different questions and answsers?
Answer: Killexams C100DEV PDF and VCE use the same pool of questions. These C100DEV exam questions are taken from genuine exam sources, that's why these C100DEV exam questions are sufficient to read and pass the exam. Our team keep on checking update and keep the C100DEV questions up to date.

Question: What are the requirements to pass C100DEV exam in first attempt?
Answer: To pass C100DEV exam in the first attempt requires you to take C100DEV questions from killexams.com, read and practice over and over. Go to the killexams.com website, register, and obtain the full C100DEV exam version with a complete C100DEV question bank. Memorize all the questions and practice with the exam simulator again and again. You will be ready for the genuine C100DEV test within 24 hours.

Question: I had an old account, Can I use the same account for new exams?
Answer: Yes, you can use the same account for new exams. But if you buy exams and got a new account to download, you can still ask support to shift your exams to your old account.

Question: Do I need to be online to read killexams test prep?
Answer: No, you need not be online all the time to study for your exam. Killexams.com provides an offline method by downloading your C100DEV exam questions in PDF format on your mobile phone, iPad or laptop and carry them anywhere you like. You do not need to be online all the time to keep your study going. Killexams exam simulator also works offline. Just obtain and install on your laptop and you can go anywhere to keep your study going and preparing your exam at a touristic or healthier place. Whenever you need to re-download the exam files, you can connect your computer to the internet and obtain and go offline anytime you like.

References

Frequently Asked Questions about Killexams Practice Tests

All genuine test questions updated C100DEV exam! Are you kidding?
Yes, it looks like we are kidding but it is true. All the C100DEV genuine test questions are included in the brainpractice questions with VCE practice tests. That will prepare you enough to answer all the questions in the exam and get good marks.

Does killexams VCE exam simulator works offline?
Yes, Killexams exam Simulator works offline. Killexams exam simulator also works offline. Just obtain and install on your laptop and you can go anywhere to keep your study going and preparing your exam at a tourist or healthier place. Whenever you need to re-download the exam files, you can connect your computer to the internet and obtain and go offline anytime you like. You do not need the internet all the time to study for your exam. Killexams.com provides an offline method by downloading your C100DEV exam questions in PDF format on your mobile phone, iPad or laptop and carry them anywhere you like. You do not need to be online all the time to keep your study going.

I want to talk to C100DEV exam expert, where should I contact?
You can send your query to support@killexams.com to contact our certification experts. You should expect a little longer to get a response because our team has to handle hundreds of queries in the queue. Write your query in detail with your username (if available).

Is Killexams.com Legit?

Absolutely yes, Killexams is 100% legit in addition to fully well-performing. There are several capabilities that makes killexams.com legitimate and straight. It provides current and fully valid exam dumps containing real exams questions and answers. Price is surprisingly low as compared to the majority of the services on internet. The Q&A are modified on common basis along with most recent brain dumps. Killexams account structure and product delivery can be quite fast. Data downloading is certainly unlimited and extremely fast. Help is available via Livechat and Electronic mail. These are the characteristics that makes killexams.com a strong website that supply exam dumps with real exams questions.

Other Sources

Which is the best testprep site of 2025?

There are several Q&A 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 2025 that understands the issue candidates face when they spend their time studying obsolete contents taken from free pdf obtain sites or reseller sites. That is why killexams update exam Q&A 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 obtain PDF exam Questions from killexams.com and get ready for genuine 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 Q&A will be provided in your obtain Account. You can obtain 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 genuine Test. Go register for Test in Test Center and Enjoy your Success.

100% Money Back Pass Guarantee

Back to List

Social Profiles

MongoDB Certified Developer Associate 2025 Practice Test

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

100% Money Back Pass Guarantee

C100DEV PDF trial Questions

C100DEV trial Questions

Killexams VCE exam Simulator 3.0.9

Get C100DEV exam PDF Questions containing Valid genuine inquiries

Latest 2025 Updated C100DEV Real exam Questions

Tags

Killexams Review | Reputation | Testimonials | Customer Feedback

C100DEV Exam

C100DEV Exam

References

Frequently Asked Questions about Killexams Practice Tests

Is Killexams.com Legit?

Other Sources

Which is the best testprep site of 2025?

Important Links for best testprep material

100% Money Back Pass Guarantee

Social Profiles