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What Are Career Opportunities with AWS Certified Developer - Associate?
As we already mentioned, the AWS Developer – Associate certification is suitable for candidates who already perform a developer role. Once you get certified, you can apply for different positions, such as:
- Application Security Developer;
- Cloud Developer;
- Cloud Software Engineer;
- DevOps Engineer;
- AWS Solutions Architect.
By adding such a reputable certification under your belt, you will become a promising candidate on the market. Therefore, recruiters will start headhunting you, offering a higher salary and attractive bonuses. According to Payscale.com, the annual average salary for a Cloud Software Engineer will be around $98k. However, a certified specialist can earn up to $146k per annum. Besides, an AWS Solutions Architect can receive an average salary of more than $141k in one year.
The AWS Certified Developer - Associate exam is an excellent certification for professionals who want to validate their skills and knowledge in developing and maintaining applications on AWS. AWS Certified Developer - Associate certification exam is challenging and requires a deep understanding of AWS services and their capabilities. If you are interested in becoming an AWS certified developer, AWS-Certified-Developer-Associate exam is an excellent place to start.
NEW QUESTION # 24
A developer implemented a static website hosted in Amazon S3 that makes web service requests hosted in Amazon API Gateway AWS Lambda. The site is showing an error that reads
"No ' Access-Control-Allow Origin' header is present on the requested resource Origin 'null' is therefore not allowed access " What should the developer do to resolve this issue?
- A. Add the Access-Control-Request-Headers header to the request
- B. Enable cross-origin resource sharing (CORS) on the S3 bucket
- C. Add the Access-Control-Request-Method header to the request
- D. Enable cross-origin resource sharing (CORS) for the method in API Gateway
Answer: D
Explanation:
Explanation
https://docs.aws.amazon.com/apigateway/latest/developerguide/how-to-cors-console.html
NEW QUESTION # 25
A developer is creating an AWS Lambda function that needs credentials to connect to an Amazon RDS for MySQL database. An Amazon S3 bucket currently stores the credentials. The developer needs to improve the existing solution by implementing credential rotation and secure storage. The developer also needs to provide integration with the Lambda function.
Which solution should the developer use to store and retrieve the credentials with the LEAST management overhead?
- A. Store the credentials in AWS Systems Manager Parameter Store. Select the database that the parameter will access. Use the default AWS Key Management Service (AWS KMS) key to encrypt the parameter.
Enable automatic rotation for the parameter. Use the parameter from Parameter Store on the Lambda function to connect to the database. - B. Encrypt the credentials with the default AWS Key Management Service (AWS KMS) key. Store the credentials as environment variables for the Lambda function. Create a second Lambda function to generate new credentials and to rotate the credentials by updating the environment variables of the first Lambda function. Invoke the second Lambda function by using an Amazon EventBridge rule that runs on a schedule. Update the database to use the new credentials. On the first Lambda function, retrieve the credentials from the environment variables. Decrypt the credentials by using AWS KMS, Connect to the database.
- C. Encrypt the credentials by using AWS Key Management Service (AWS KMS). Store the credentials in an Amazon DynamoDB table. Create a second Lambda function to rotate the credentials. Invoke the second Lambda function by using an Amazon EventBridge rule that runs on a schedule. Update the DynamoDB table. Update the database to use the generated credentials. Retrieve the credentials from DynamoDB with the first Lambda function. Connect to the database.
- D. Store the credentials in AWS Secrets Manager. Set the secret type to Credentials for Amazon RDS database. Select the database that the secret will access. Use the default AWS Key Management Service (AWS KMS) key to encrypt the secret. Enable automatic rotation for the secret. Use the secret from Secrets Manager on the Lambda function to connect to the database.
Answer: D
NEW QUESTION # 26
How can a user configure three termination policies for the AutoScaling group?
- A. Keep updating the AutoScaling group with each policy
- B. The user cannot specify more than two policies for AutoScaling
- C. Define multiple policies in random order
- D. Define multiple policies in the ordered list
Answer: D
Explanation:
To configure the Auto Scaling termination policy, the user can either specify any one of the policies as a
standalone policy or list multiple policies in an ordered list. The policies are executed in the order that they
are listed.
Reference: http://docs.aws.amazon.com/AutoScaling/latest/DeveloperGuide/us-termination-policy.html
NEW QUESTION # 27
You attempt to store an object in the US-STANDARD region in Amazon S3, and receive a confirmation that it has been successfully stored. You then immediately make another API call and attempt to read this object. S3 tells you that the object does not exist What could explain this behavior?
- A. You exceeded the bucket object limit, and once this limit is raised the object will be visible.
- B. US-STANDARD uses eventual consistency and it can take time for an object to be readable in a bucket
- C. US-STANDARD imposes a 1 second delay before new objects are readable.
- D. Objects in Amazon S3 do not become visible until they are replicated to a second region.
Answer: B
Explanation:
Explanation
https://acloud.guru/forums/aws-certified-developer-associate/discussion/-KGngHzVQ03OpeAA9jSP/i-cant-answ
https://acloud.guru/forums/aws-certified-developer-associate/discussion/-K5WKXRAlJdOu58GREF_/s3-questio
NEW QUESTION # 28
When uploading an object, what request header can be explicitly specified in a request to Amazon S3 to encrypt object data when saved on the server side?
- A. x-amz-server-side-encryption
- B. x-amz-security-token
- C. Content-MD5
- D. x-amz-storage-class
Answer: A
NEW QUESTION # 29
A Security Architect is evaluating managed solutions for storage of encryption keys. The requirements are:
-Storage is accessible by using only VPCs.
-Service has tamper-evident controls.
-Access logging is enabled.
-Storage has high availability.
Which of the following services meets these requirements?
- A. AWS CloudHSM
- B. Amazon DynamoDB with server-side encryption
- C. Amazon S3 with default encryption
- D. AWS Systems Manager Parameter Store
Answer: A
Explanation:
Explanation/Reference: https://aws.amazon.com/blogs/aws/aws-cloud-hsm-secure-key-storage-and-cryptographic- operations/
NEW QUESTION # 30
A Developer migrated a web application to AWS. As part of the migration, the Developer implemented an automated continuous integration/continuous improvement (CI/CD) process using a blue/green deployment. The deployment provisions new Amazon EC2 instances in an Auto Scaling group behind a new Application Load Balancer. After the migration was completed, the Developer began receiving complaints from users getting booted out of the system. The system also requires users to log in after every new deployment.
How can these issues be resolved?
- A. Turn on sticky sessions in the Application Load Balancer
- B. Externalize the user sessions to Amazon ElastiCache
- C. Use rolling updates instead of a blue/green deployment
- D. Use multicast to replicate session information
Answer: A
NEW QUESTION # 31
An online retail company is planning a multi-day flash sale that must support processing of up to 5,000 orders per second. The number of orders and exact schedule for the sale will vary each day. During the sale, approximately 10,000 concurrent users will look at the deals before buying items. Outside of the sale, the traffic volume is very low. The acceptable performance for read/write queries should be under 25 ms. Order items are about 2 KB in size and have a unique identifier. The company requires the most cost-effective solution that will automatically scale and is highly available.
Which solution meets these requirements?
- A. Amazon Aurora with one writer node and an Aurora Replica with the parallel query feature enabled
- B. Amazon DynamoDB with on-demand capacity mode
- C. Amazon Aurora with one writer node and two cross-Region Aurora Replicas
- D. Amazon DynamoDB with provisioned capacity mode with 5,000 write capacity units (WCUs) and 10,000 read capacity units (RCUs)
Answer: D
NEW QUESTION # 32
A user has enabled automated backup for an RDS instance. What is the longest duration for which the user can retain the automated backup?
- A. 45 days
- B. 25 days
- C. 35 days
- D. 15 days
Answer: C
Explanation:
Amazon RDS provides two different methods for backing up and restoring the Amazon DB instances:
automated backups and DB snapshots. Automated backups automatically back up the DB instance during a specific, user-definable backup window, and keep the backups for a limited, user-specified period of time. The maximum period can be 35 days.
NEW QUESTION # 33
What is the maximum time messages can be stored in SQS?
- A. 4 days
- B. one month
- C. 7 days
- D. 14 days
Answer: D
Explanation:
A message can be stored in the Simple Queue Service (SQS) from 1 minute up to a maximum of
14 days.
NEW QUESTION # 34
An application writes items to an Amazon DynamoDB table. As the application scales to thousands of instances, calls to the DynamoDB API generate occasional ThrottlingException errors. The application is coded in a language incompatible with the AWS SDK.
How should the error be handled?
- A. Send the items to DynamoDB through Amazon Kinesis Data Firehose
- B. Pass API calls through Amazon API Gateway
- C. Add exponential backoff to the application logic
- D. Use Amazon SQS as an API message bus
Answer: C
Explanation:
Explanation
https://aws.amazon.com/premiumsupport/knowledge-center/throttled-ddb/
SDKs automatically add exponential backoff. If not using the AWS SDKs, add your own backoff logic to the application code.
https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Programming.Errors.html#Programming.
NEW QUESTION # 35
A company wants to implement authentication for its new REST service using Amazon API Gateway. To authenticate the calls, each request must include HTTP headers with a client ID and user ID. These credentials must be compared to authentication data in an Amazon DynamoDB table.
What MUST the company do to implement this authentication in API Gateway?
- A. Implement an Amazon Cognito authorizer that references the DynamoDB authentication table
- B. Implement an AWS Lambda authorizer that references the DynamoDB authentication table
- C. Create a model that requires the credentials, then grant API Gateway access to the authentication table
- D. Modify the integration requests to require the credentials, then grant API Gateway access to the authentication table
Answer: A
Explanation:
Explanation/Reference:
NEW QUESTION # 36
A developer is creating an application to process a large number of requests Requests must be processed in order, and each request should be processed only once How should Amazon SQS be deployed to achieve this?
- A. Convert the standard queue to a FIFO queue by renaming the queue to use the fifo suffix.
- B. Use an SQS FIFO queue to process requests
- C. Configure First in First out (FIFO) delivery in a standard Amazon SQS queue to process requests.
- D. Use the SetOrder attribute to ensure sequential request processing
Answer: B
NEW QUESTION # 37
An online retail company has deployed a serverless application with AWS Lambda, Amazon API Gateway, Amazon S3, and Amazon DynamoDB using AWS CloudFormation. The company rolled out a new release with major upgrades to the Lambda function and deployed the release to production. Subsequently, the application stopped working.
Which solution should bring the application back up as quickly as possible?
- A. Migrate DynamoDB to Amazon RDS and redeploy the Lambda function
- B. Roll back the Lambda function to the previous version
- C. Redeploy the application on Amazon EC2 so the Lambda function can resolve dependencies
- D. Deploy the latest Lambda function in a different Region
Answer: B
Explanation:
Explanation/Reference: https://github.com/awslabs/aws-sam-cli/issues/1654
NEW QUESTION # 38
What is the maximum number of tags that a user can assign to an EC2 instance?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
Explanation:
To help manage EC2 instances as well as their usage in a better way, the user can tag the instances. The tags are metadata assigned by the user which consists of a key and a value. One resource can have a maximum of 10 tags.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/Using_Tags.html
NEW QUESTION # 39
An ecommerce company is using Amazon DynamoDB as the backend for its order-processing application. The steady increase in the number of orders is resulting in increased DynamoDB costs. Order verification and reporting perform many repeated GetItem functions that pull similar datasets, and this read activity is contributing to the increased costs. The company wants to control these costs without significant development efforts.
How should a Database Specialist address these requirements?
- A. Use Amazon DynamoDB Streams and Amazon Kinesis Data Firehose to push the data into Amazon Redshift
- B. Use DynamoDB Accelerator to offload the reads
- C. Use an Amazon ElastiCache for Redis in front of DynamoDB to boost read performance
- D. Use AWS DMS to migrate data from DynamoDB to Amazon DocumentDB
Answer: A
NEW QUESTION # 40
When should a user try to Force Detach an EBS volume?
- A. If the volume is stuck in a detaching state
- B. If the volume is not unmounted and the user still wants to detach
- C. If the volume is not accessible from the instance
- D. If the volume is a root volume
Answer: A
Explanation:
If an EBS volume stays in the detaching state, the user can force the detachment by clicking Force Detach. Forcing the detachment can lead to either data loss or a corrupted file system.
The user should use this option only as a last resort to detach a volume from a failed instance or if he is detaching a volume with the intention of deleting it.
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-detaching-volume.html
NEW QUESTION # 41
A Developer is building a mobile application and needs any update to user profile data to be pushed to all devices accessing the specific identity. The Developer does not want to manage a back end to maintain the user profile data.
What is the MOST efficient way for the Developer to achieve these requirements using Amazon Cognito?
- A. Use Cognito federated identities.
- B. Use Cognito Sync.
- C. Use a Cognito user pool.
- D. Use Cognito events.
Answer: B
NEW QUESTION # 42
A company is using continuous integration/continuous deliver (CI/CD) system.
A developer must automate the deployment of an application software package to Amazon EC2 instances and virtual servers that run on premises.
Which AWS services should the developer use to meet these requirements?
- A. AWS Cloud9
- B. AWS CodeDeploy
- C. AWS Elastic Beanstalk
- D. AWS CodeBuild
Answer: B
NEW QUESTION # 43
A large e-commerce site is being designed to deliver static objects from Amazon S3. The Amazon S3 bucket wills server more than 300 GET requests per second. What should be done to optimize performance? (Select TWO.)
- A. Randomize Amazon S3 key name prefixes.
- B. Configure Amazon S3 lifecycle rules.
- C. Enable Amazon S3 cross-region replication.
- D. Integrate Amazon CloudFront with Amazon S3.
- E. Delete expired Amazon S3 server log files.
Answer: C,D
NEW QUESTION # 44
An organization has enabled a strict password policy for its IAM users. The organization is taking help from the IAM console to set the password policy. Which of the below mentioned rules cannot be specified by the user as a part of the policy?
- A. Allow at least one lower case letter
- B. Allow at least one number
- C. Allow at least one non-alphanumeric character
- D. Do not allow the user to use the password from the last three passwords
Answer: D
Explanation:
AWS IAM allows an organization to create multiple users and provide them access to various AWS services. By default when the user is created, he does not have password enabled and can not login to AWS console. If the organization wants to allow the users to login to AWS console, they can enable password for each user. It is required that IAM users follow certain guidelines to set their IAM login password. For this IAM provides root account owner to setup passwrod policy.
The password policy also lets the specify whether all IAM users can change their own passwords.
As part of policy, organization can specify that passwords for IAM users must be of a certain minimum length, must include certain characters, and a few more criteria such as below.
One upper / lower or both letters
One alpha numeric
One number
http://docs.aws.amazon.com/IAM/latest/UserGuide/Using_ManagingPasswordPolicies.html
NEW QUESTION # 45
How can a user configure three termination policies for the AutoScaling group?
- A. Keep updating the AutoScaling group with each policy
- B. The user cannot specify more than two policies for AutoScaling
- C. Define multiple policies in random order
- D. Define multiple policies in the ordered list
Answer: D
Explanation:
To configure the Auto Scaling termination policy, the user can either specify any one of the policies as a standalone policy or list multiple policies in an ordered list. The policies are executed in the order that they are listed.
Reference: http://docs.aws.amazon.com/AutoScaling/latest/DeveloperGuide/us-termination-policy.html
NEW QUESTION # 46
A company is collecting AWS CloudTrail log data from multiple AWS accounts by managing individual trails in each account and forwarding log data to a centralized Amazon S3 bucket residing in a log archive account. After CloudTrail introduced support for AWS Organizations trails, the company decided to further centralize management and automate deployment of the CloudTrail logging capability across all of its AWS accounts.
The company's security engineer created an AWS Organizations trail in the master account, enabled server-side encryption with AWS KMS managed keys (SSE-KMS) for the log files, and specified the same bucket as the storage location. However, the engineer noticed that logs recorded by the new trail were not delivered to the bucket.
Which factors could cause this issue? (Choose two.)
- A. The CMK key policy does not allow CloudTrail to make GenerateDatakey API calls against the key.
- B. The IAM role used by the CloudTrail trail does not have permissions to make PutObject API calls against a folder created for the Organizations trail.
- C. The CMK key policy does not allow CloudTrail to make encrypt and decrypt API calls against the key.
- D. The CMK key policy does not allow the IAM role used by the CloudTrail trail to use the key for cryptographical operations.
- E. The S3 bucket policy does not allow CloudTrail to make PutObject API calls against a folder created for the Organizations trail.
Answer: C,E
Explanation:
Explanation/Reference:
NEW QUESTION # 47
Your manager has requested you to tag EC2 instances to organize and manage a load balancer. Which of the following statements about tag restrictions is incorrect?
- A. The maximum value length is 255 Unicode characters.
- B. The maximum number of tags per load balancer is 20.
- C. The maximum key length is 127 Unicode characters.
- D. Tag keys and values are case sensitive.
Answer: B
Explanation:
Tags help you to categorize your load balancers in different ways, for example, by purpose, owner, or environment. The following basic restrictions apply to tags: The maximum number of tags per resource is
1 0. The maximum key length is 127 Unicode characters. The maximum value length that can be used is
2 55 Unicode characters. The tag keys and values are case sensitive. Allowed characters are letters, spaces, and numbers representable in UTF-8, plus the following special characters: + - =. _ : / @. Do not use leading or trailing spaces. Do not use the aws: prefix in your tag names or values because it is reserved for AWS use. You can't edit or delete tag names or values with this prefix. Tags with this prefix do not count against your tags per resource limit.
Reference:
http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/add-remove-tags.html#tag-res trictions
NEW QUESTION # 48
......
The AWS-Developer certification exam is designed to test a candidate's ability to develop and deploy cloud-based applications using AWS services. It covers a broad range of topics, including AWS infrastructure, security, development with AWS services, and deployment and management of AWS applications. AWS-Certified-Developer-Associate exam consists of multiple-choice questions and is conducted online through the AWS Certification Portal.
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