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Download AWS Certified DevOps Engineer - Professional Exam Dumps
NEW QUESTION 20
A company is deploying a new mobile game on AWS for its customers around the world. The Development team uses AWS Code services and must meet the following requirements:
- Clients need to send/receive real-time playing data from the backend frequently and with minimal latency
- Game data must meet the data residency requirement
Which strategy can a DevOps Engineer implement to meet their needs?
- A. Deploy the backend application to multiple regions. Any update to the code repository triggers a two-stage build-and-deployment pipeline in the region. After a successful deployment in the region, the pipeline invokes the pipeline in another region and passes the build artifact location. The pipeline uses the artifact location and deploys applications in the new region.
- B. Deploy the backend application to multiple regions. Any update to the code repository triggers a two-stage build and deployment pipeline. A successful deployment in one region invokes an AWS Lambda function to copy the build artifacts to an Amazon S3 bucket in another region. After the artifact is copied, it triggers a deployment pipeline in the new region.
- C. Deploy the backend application to multiple regions. Use AWS Direct Connect to serve the application backend to global customers. Any update to the code repository triggers a two-stage build-and-deployment pipeline in the region. After a successful deployment in the region, the pipeline continues to deploy the artifact to another region.
- D. Deploy the backend application to multiple Availability Zones in a single region. Create an Amazon CloudFront distribution to serve the application backend to global customers. Any update to the code repository triggers a two-stage build-and-deployment pipeline. The pipeline deploys the backend application to all Availability Zones.
Answer: B
NEW QUESTION 21
You need to perform ad-hoc business analytics queries on well-structured data. Data comes in constantly at a high velocity. Your business intelligence team can understand SQL. What AWS service(s) should you look to first?
- A. Kinesis Firehose + RedShift
- B. EMR using Hive
- C. EMR running Apache Spark
- D. Kinesis Firehose + RDS
Answer: A
Explanation:
Kinesis Firehose provides a managed service for aggregating streaming data and inserting it into RedShift.
RedShift also supports ad-hoc queries over well-structured data using a SQL-compliant wire protocol, so the business team should be able to adopt this system easily.
Reference:
https://aws.amazon.com/kinesis/firehose/details/
NEW QUESTION 22
You are using a configuration management system to manage your Amazon EC2 instances. On your Amazon EC2 Instances, you want to store credentials for connecting to an Amazon RDS MYSQL DB instance. How should you securely store these credentials?
- A. Store the Amazon RDS DB credentials in Amazon EC2 user data. Import the credentials into the Instance on boot.
- B. Give the Amazon EC2 instances an 1AM role that allows read access to a private Amazon S3 bucket.
Store a file with database credentials in the Amazon S3 bucket. Have your configuration management system pull the file from the bucket when it is needed. - C. Assign an 1AM role to your Amazon EC2 instance, and use this 1AM role to access the Amazon RDS DB from your Amazon EC2 instances.
- D. Launch an Amazon EC2 instance and use the configuration management system to bootstrap the instance with the Amazon RDS DB credentials. Create an AMI from this instance.
Answer: C
Explanation:
Explanation
Creating and Using an 1AM Policy for 1AM Database Access
To allow an 1AM user or role to connect to your DB instance or DB cluster, you must create an 1AM policy.
After that you attach the policy to an 1AM user or role.
Note
To learn more about 1AM policies, see Authentication and Access Control for Amazon RDS.
The following example policy allows an 1AM user to connect to a DB instance using 1AM database authentication.
Important
Don't confuse the rds-db: prefix with other Amazon RDS action prefixes that begin with rds:. You use the rds-db: prefix and the rds-db:connect action only for 1AM database authentication. They aren't valid in any other context.
1AM Database Authentication for MySQL and Amazon Aurora
With Amazon RDS for MySQL or Aurora with MySQL compatibility, you can authenticate to your DB instance or DB cluster using AWS Identity and Access Management (IAMJ database authentication. With this authentication method, you don't need to use a password when you connect to a DB instance. Instead, you use an authentication token.
An authentication token is a unique string of characters that Amazon RDS generates on request.
Authentication tokens are generated using AWS Signature Version 4. Each token has a lifetime of 15 minutes.
You don't need to store user credentials in the database, because authentication is managed externally using
1AM. You can also still use standard database authentication.
IAM database authentication provides the following benefits:
* Network traffic to and from the database is encrypted using Secure Sockets Layer (SSL).
* You can use IAM to centrally manage access to your database resources, instead of managing access individually on each DB instance or DB cluster.
* For applications running on Amazon EC2, you can use EC2 instance profile credentials to access the database instead of a password, for greater security.
For more information please refer to the below document link from AWS
* https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/UsingWithRDS.IAMDBAuth.html
* https://docs^ws.amazon.com/AmazonRDS/latest/UserGuide/UsingWithRDS.IAMDBAuth.lAMPolicy.htm You can use roles to delegate access to users, applications, or services that don't normally have access to your AWS resources. For example, you might want to grant users in your AWS account access to resources they don't usually have, or grant users in one AWS account access to resources in another account. Or you might want to allow a mobile app to use AWS resources, but not want to embed AWS keys within the app (where they can be difficult to rotate and where users can potentially extract them). Sometimes you want to give AWS access to users who already have identities defined outside of AWS, such as in your corporate directory. Or, you might want to grant access to your account to third parties so that they can perform an audit on your resources. For more information on 1AM Roles, please refer to the below document link: from AWS
* http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles.html
NEW QUESTION 23
Consider the portion of a CloudTrail log file below. Which type of event is being captured?
"eventTime":"2016-07-16T17:35:32Z",
"eventSource":"signin.amazonaws.com",
"eventName":"ConsoleLogin",
"awsRegion":"us-west-1",
"sourceIPAddress":"192.1.2.10",
...
- A. AWS log off
- B. AWS error
- C. AWS console sign-in
- D. AWS deployment
Answer: C
Explanation:
CloudTrail records attempts to sign into the AWS Management Console, the AWS Discussion Forums and the AWS Support Center. Note, however, that CloudTrail does not record root sign-in failures.
Reference:
http://docs.aws.amazon.com/awscloudtrail/latest/userguide/cloudtrail-event-reference-aws- console-sign-in-events.html
NEW QUESTION 24
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