Get 100% Passing Success With True AWS-Developer Exam! [Jan-2022]
Amazon AWS-Developer PDF Questions - Exceptional Practice To AWS Certified Developer - Associate
Helpful Preparation Books
- AWS Certified Developer Official Study Guide By Nick Alteen Written By Jennifer Fisher And Others
This study guide is the best gateway to prepare for DVA-C01 exam. It provides applicants with all the resources they require to pass the test on the first try. Clear explanations, expert guidance, and best practices help to understand each and every concept. No need to worry when you have this guide in your hand! It has everything the candidates may need, including the following:
- Information about all the key topics with challenging questions
- Online tools for preparation, such as searchable glossary and flashcards
- Practice tests
- Expert insight on best practices of AWS services
- Chapter-wise difficult questions for practice
- AWS Certified Developer Associate Study Guide By Kamesh Ganesan
It is a very effective study guide that delivers candidates the information about every topic of the AWS Certified Developer – Associate exam. The readers will get a chance to face the challenges they are going to solve in the real test. The coverage of the concepts is very comprehensive in this material, that is why it will prepare you well. The authors clearly explain all the details of deploying, migrating, creating, monitoring, and debugging the cloud-native applications, as well as the following areas:
- Making NoSQL and SQL databases in AWS cloud
- Creating cloud-native applications
- Performing the application management & integration
- Handling cloud storage
- Working with fault tolerance and high availability
The candidates will also find electronic content that will help them obtain practical skills. This part of the material consists of full-length sample tests with 130 questions as well as customizable quizzes.
Who Is Target Audience for AWS Developer – Associate Certification?
The AWS Certified Developer – Associate certification is designed for any examinee who wants to understand more about AWS core services, as well as have a clear view on how to use and implement AWS architecture best practices. This is a certification suitable for candidates who already work as a developer. By getting the passing score in the certification exam, they will demonstrate that they are proficient in developing and debugging cloud-based applications using AWS features and services. This AWS certificate can be obtained after passing only one exam which has the code DVA-C01. While there are no stringent prerequisites that candidates have to meet to pass the AWS Certified Developer – Associate exam, the vendor has some recommendations, though. The examinees should have at least one year of practical experience in development, especially in maintaining and developing AWS based applications. They should also understand at least one high-level programming language and have a solid understanding of AWS fundamental services like AWS CLI, SDKs, or APIs.
NEW QUESTION 38
A Developer has written an Amazon Kinesis Data Streams application. As usage grows and traffic increases over time, the application is regularly receiving ProvisionedThroughputExceededException error messages.
Which steps should the Developer take to resolve the error? (Choose two.)
- A. Specify a shard iterator using the ShardIterator parameter
- B. Use Auto Scaling to scale the stream for better performance
- C. Increase the delay between the GetRecords call and the PutRecords call
- D. Increase the number of shards in the data stream
- E. Implement exponential backoff on the GetRecords call and the PutRecords call
Answer: A,D
Explanation:
Explanation/Reference: https://docs.aws.amazon.com/streams/latest/dev/troubleshooting-consumers.html
NEW QUESTION 39
An Amazon S3 bucket, "myawsbucket" is configured with website hosting in Tokyo region, what is the region-specific website endpoint?
- A. www.myawsbucket.ap-northeast-1.amazonaws.com
- B. myawsbucket.amazonaws.com
- C. myawsbucket.tokyo.amazonaws.com
- D. myawsbucket.s3-website-ap-northeast-l.amazonawscom
Answer: D
NEW QUESTION 40
Is it possible to create an S3 bucket accessible only by a certain IAM user, using policies in a
CloudFormation template?
- A. S3 is not supported by CloudFormation.
- B. No, you can only create the S3 bucket but not the IAM user.
- C. No, in the same template you can only create the S3 bucket and the realtive policy.
- D. Yes, all these resources can be created using a CloudFormation template
Answer: D
Explanation:
With AWS Identity and Access Management (IAM), you can create IAM users to control who has access
to which resources in your AWS account. You can use IAM with AWS CloudFormation to control what
AWS CloudFormation actions users can perform, such as view stack templates, create stacks, or delete
stacks.
In addition to AWS CloudFormation actions, you can manage what AWS services and resources are
available to each user.
NEW QUESTION 41
How many relational database engines does RDS currently support?
- A. Just one: MySQL.
- B. Just two: MySQL and Oracle.
- C. Five: MySQL, PostgreSQL, MongoDB, Cassandra and SQLite.
- D. MySQL, Postgres, MariaDB, Oracle and Microsoft SQL Server
Answer: D
NEW QUESTION 42
A developer has written an AWS Lambda function using Java as the runtime environment. The developer wants to isolate a performance bottleneck in the code.
Which steps should be taken to reveal the bottleneck?
- A. Use the AWS X-Ray API to write trace data into X-Ray from strategic places within the code. Use the X-Ray console to analyze the resulting data
- B. Use the AWS X-Ray API to write trace data into X-Ray from strategic places within the code Use the Amazon CloudWatch console to analyze the resulting data
- C. Use the Amazon CloudWatch API to write timestamps to a custom CloudWatch metric Use the CloudWatch console to analyze the resulting data
- D. Use the Amazon CloudWatch API to write timestamps to a custom CloudWatch metric Use the AWS X-Ray console to analyze the resulting data
Answer: A
NEW QUESTION 43
In regard to DynamoDB, what is the Global secondary index?
- A. An index that has the same hash key and range key as the table
- B. An index that has the same range key as the table, but a different hash key
- C. An index with a hash and range key that can be different from those on the table.
- D. An index that has the same hash key as the table, but a different range key
Answer: C
Explanation:
Global secondary index - an index with a hash and range key that can be different from those on the
table.
Reference: http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DataModel.html
NEW QUESTION 44
What is the maximum size for messages stored in SQS?
- A. 256KB
- B. 128KB
- C. 1024KB
- D. 64KB
Answer: A
Explanation:
By default, SQS queues allow you to send the largest supported payload size, currently 256KB. You can
choose to specify a limit on how many bytes can be sent per payload, using the MaximumMessageSize
attribute of the SetQueueAttributes method.
Reference: http://aws.amazon.com/sqs/faqs/
NEW QUESTION 45
A Developer is creating a web application that requires authentication, but also needs to support guest access to provide users limited access without having to authenticate. What service can provide support for the application to allow guest access?
- A. Amazon Cognito with unauthenticated access enabled
- B. IAM with SAML integration
- C. Amazon Directory Service
- D. IAM temporary credentials using AWS STS.
Answer: D
Explanation:
Explanation
https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/serverless-getting-started-hello
https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/sam-cli-command-reference-sa
https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/sam-cli-command-reference-sa
NEW QUESTION 46
A user has created a blank EBS volume in the US-East-1 region. The user is unable to attach the volume to a running instance in the same region. What could be the possible reason for this?
- A. The AZ for the instance and volume are different
- B. The instance has enabled the volume attach protection
- C. The instance must be in a running state. It is required to stop the instance to attach volume
- D. The instance is from an instance store backed AMI
Answer: A
Explanation:
An EBS volume provides persistent data storage. The user can attach a volume to any instance provided they are both in the same AZ. Even if they are in the same region but in a different AZ, it will not be able to attach the volume to that instance.
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AmazonEBS.html
NEW QUESTION 47
A Developer is designing a fault-tolerant environment where client sessions will be saved.
How can the Developer ensure that no sessions are lost if an Amazon EC2 instance fails?
- A. Use Amazon DynamoDB to perform scalable session handling.
- B. Use Elastic Load Balancer connection draining to stop sending requests to failing instances.
- C. Use Amazon SQS to save session data.
- D. Use sticky sessions with an Elastic Load Balancer target group.
Answer: D
NEW QUESTION 48
You are managing the AWS account of a big organization. The organization has more than 1000+ employees and they want to provide access to the various services to most of the employees. Which of the below mentioned options is the best possible solution in this case?
- A. The user should create an IAM role and attach STS with the role. The user should attach that role to the EC2 instance and setup AWS authentication on that server
- B. Attach an IAM role with the organization's authentication service to authorize each user for various AWS services
- C. The user should create IAM groups as per the organization's departments and add each user to the group for better access control
- D. The user should create a separate IAM user for each employee and provide access to them as per the policy
Answer: B
NEW QUESTION 49
An organization is setting up their website on AWS. The organization is working on various security
measures to be performed on the AWS EC2 instances. Which of the below mentioned security
mechanisms will not help the organization to avoid future data leaks and identify security weaknesses?
- A. Perform a Code Check for any memory leaks.
- B. Perform a hardening test on the AWS instance.
- C. Perform SQL injection for application testing.
- D. Run penetration testing on AWS with prior approval from Amazon.
Answer: A
Explanation:
AWS security follows the shared security model where the user is as much responsible as Amazon. Since
Amazon is a public cloud it is bound to be targeted by hackers. If an organization is planning to host their
application on AWS EC2, they should perform the below mentioned security checks as a measure to find
any security weakness/data leaks:
Perform penetration testing as performed by attackers to find any vulnerability. The organization must
take an approval from AWS before performing penetration testing
Perform hardening testing to find if there are any unnecessary ports open
Perform SQL injection to find any DB security issues
The code memory checks are generally useful when the organization wants to improve the application
performance.
Reference: http://aws.amazon.com/security/penetration-testing/
NEW QUESTION 50
A developer has built a market application that stores pricing data in Amazon DynamoDB with Amazon ElastiCache in front. The prices of items in the market change frequently Sellers have begun complaining that, after they update the price of an item, the price does not actually change in the product listing What could be causing this issue?
- A. The price of the item is being retrieved using a write-through ElastiCache cluster
- B. The DynamoDB table was provisioned with insufficient read capacity
- C. The cache is not being invalidated when the price of the item is changed
- D. The DynamoDB table was provisioned with insufficient write capacity.
Answer: C
NEW QUESTION 51
A Developer is working on an application that handles 10MB documents that contain highly-sensitive data.
The application will use AWS KMS to perform client-side encryption.
What steps must be followed?
- A. Invoke the GenerateDataKey API to retrieve the encrypted version of the data encryption key to encrypt the data
- B. Invoke the Encrypt API passing the plaintext data that must be encrypted, then reference the customer managed key ARN in the KeyId parameter
- C. Invoke the GenerateRandom API to get a data encryption key, then use the data encryption key to encrypt the data
- D. Invoke the GenerateDataKey API to retrieve the plaintext version of the data encryption key to encrypt the data
Answer: D
Explanation:
Explanation
https://docs.aws.amazon.com/AmazonS3/latest/dev/UsingClientSideEncryption.html GenerateDataKey API: Generates a unique data key. This operation returns a plaintext copy of the data key and a copy that is encrypted under a customer master key (CMK) that you specify. You can use the plaintext key to encrypt your data outside of KMS and store the encrypted data key with the encrypted data.
NEW QUESTION 52
A user has launched one EC2 instance in the US West region. The user wants to access the RDS instance launched in the US East region from that EC2 instance. How can the user configure the access for that EC2 instance?
- A. Open the security group of the US West region in the RDS security group's ingress rule
- B. It is not possible to access RDS of the US East region from the US West region
- C. Create an IAM role which has access to RDS and launch an instance in the US West region with it
- D. Configure the IP range of the US West region instance as the ingress security rule of RDS
Answer: D
Explanation:
The user cannot authorize an Amazon EC2 security group if it is in a different AWS Region than the RDS DB instance. The user can authorize an IP range or specify an Amazon EC2 security group in the same region that refers to an IP address in another region.
Reference:
http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_WorkingWithSecurityGroups.html
NEW QUESTION 53
What are the steps to using the AWS CLI to launch a templatized serverless application?
- A. Use AWS CloudFormation package then CloudFormation deploy.
- B. Use AWS CloudFormation create-stack then CloudFormation update-stack.
- C. Use AWS CloudFormation validate-template then CloudFormation create-change-set.
- D. Use AWS CloudFormation get-template then CloudFormation execute-change-set.
Answer: A
Explanation:
https://github.com/awslabs/aws-sam-cli
NEW QUESTION 54
A user has launched an RDS instance. The user has created 3 databases on the same server. What can
the maximum size be for each database?
- A. The size of each DB cannot be more than 3 TB
- B. The size of each DB cannot be more than 1 TB
- C. The total instance storage size cannot be more than 3 TB
- D. It is not possible to have more than one DB on a single instance
Answer: C
Explanation:
The AWS RDS DB instance is an isolated DB environment provided by AWS in which the user can create
more than 1 database. The maximum size of the instance should be between 5 GB and 3 TB. The size of
each DB can be anything in this range.
Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Welcome.html
NEW QUESTION 55
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Exam details
The Amazon DVA-C01 exam entails two question formats. These are multiple-choice and multiple-response questions. The test also contains some unscored ones, which are included to get the required statistical data. Answering these questions correctly or incorrectly does not affect your score. However, you won’t be able to identify them during your exam. Therefore, you must answer all the questions to the best of your abilities. The duration of this certification test is 2 hours 10 minutes. The minimum required score is 720 out of 1000 points.
To launch the registration process, the applicants need to pay $150 as an exam fee. It is also important to notice that this test is available in Simplified Chinese, Korean, Japanese, and English.
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