[2021-New] Amazon AWS-Solution-Architect-Associate Dumps With Update Exam Questions (251-260)

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Q1. By default, when an EBS volume is attached to a Windows instance, it may show up as any drive letter on the instance. You can change the settings of the _ Senrice to set the drive letters of the EBS volumes per your specifications.

A. EBS Config Senrice

B. AMI Config Senrice

C. Ec2 Config Senrice

D. Ec2-AMI Config Senrice

Answer: C

Q2. You are developing a new mobile application and are considering storing user preferences in AWS.2w This would provide a more uniform cross-device experience to users using multiple mobile devices to access the application. The preference data for each user is estimated to be SOKB in size Additionally 5 million customers are expected to use the application on a regular basis. The solution needs to be

cost-effective, highly available, scalable and secure, how would you design a solution to meet the above requirements?

A. Setup an RDS MySQL instance in 2 availability zones to store the user preference data. Deploy a public facing application on a server in front of the database to manage security and access credentials

B. Setup a DynamoDB table with an item for each user having the necessary attributes to hold the user preferences. The mobile application will query the user preferences directly from the DynamoDB table. Utilize STS. Web Identity Federation, and DynamoDB Fine Grained Access Control to authenticate and authorize access.

C. Setup an RDS MySQL instance with multiple read replicas in 2 availability zones to store the user preference data .The mobile application will query the user preferences from the read replicas. Leverage the MySQL user management and access prMlege system to manage security and access credentials.

D. Store the user preference data in 53 Setup a DynamoDB table with an item for each user and an item attribute pointing to the user' 53 object. The mobile application will retrieve the 53 URL from DynamoDB and then access the 53 object directly utilize STS, Web identity Federation, and 53 ACLs to authenticate and authorize access.

Answer: B

Q3. A favored client needs you to quickly deploy a database that is a relational database service with minimal administration as he wants to spend the least amount of time administering it. Which database would be the best option?

A. Amazon Simp|eDB

B. Your choice of relational AMs on Amazon EC2 and EBS.

C. Amazon RDS

D. Amazon Redshift

Answer: C

Explanation:

Amazon Relational Database Service (Amazon RDS) is a web service that makes it easy to set up, operate, and scale a relational database in the cloud. It provides cost-efficient and resizable capacity while managing time-consuming database administration tasks, freeing you up to focus on your applications and business.

Amazon RDS gives you access to the capabilities of a familiar MySQL, Oracle, SQL Server, or PostgreSQL database engine. This means that the code, applications, and tools you already use today with your existing databases can be used with Amazon RDS. Amazon RDS automatically patches the database software and backs up your database, storing the backups for a user-defined retention period and enabling point-in-time recovery.

Reference: https://aws.amazon.com/running_databases/#rds_anchor

Q4. Amazon EC2 has no Amazon Resource Names (ARNs) because you can't specify a particular Amazon EC2 resource in an IAM policy.

A. TRUE

B. FALSE

Answer: A

Q5. You decide that you need to create a number of Auto Scaling groups to try and save some money as you have noticed that at certain times most of your EC2 instances are not being used. By default, what is the maximum number of Auto Scaling groups that AWS will allow you to create?

A. 12

B. Unlimited

C. 20

D. 2

Answer: C

Explanation:

Auto Scaling is an AWS service that allows you to increase or decrease the number of EC2 instances within your appIication's architecture. With Auto Scaling, you create collections of EC2 instances, called Auto Scaling groups. You can create these groups from scratch, or from existing EC2 instances that are already in production.

Reference: http://docs.aws.amazon.com/general/latest/gr/aws_service_|imits.htm|#Iimits_autoscaIing

Q6. You have been using T2 instances as your CPU requirements have not been that intensive. However you now start to think about larger instance types and start looking at M and IV|3 instances. You are a little confused as to the differences between them as they both seem to have the same ratio of CPU and memory. Which statement below is incorrect as to why you would use one over the other?

A. M3 instances are less expensive than M1 instances.

B. IV|3 instances are configured with more swap memory than M instances.

C. IV|3 instances provide better, more consistent performance that M instances for most use-cases.

D. M3 instances also offer SSD-based instance storage that delivers higher I/O performance.

Answer: B

Explanation:

Amazon EC2 allows you to set up and configure everything about your instances from your operating system up to your applications. An Amazon Nlachine Image (AMI) is simply a packaged-up environment that includes all the necessary bits to set up and boot your instance.

M1 and M3 Standard instances have the same ratio of CPU and memory, some reasons below as to why you would use one over the other.

IV|3 instances provide better, more consistent performance that M instances for most use-cases. M3 instances also offer SSD-based instance storage that delivers higher I/O performance.

M3 instances are also less expensive than M1 instances. Due to these reasons, we recommend M3 for applications that require general purpose instances with a balance of compute, memory, and network resources.

However, if you need more disk storage than what is provided in M3 instances, you may still find M1 instances useful for running your applications.

Reference: https://aws.amazon.com/ec2/faqs/

Q7. An organization has a statutory requirement to protect the data at rest for the S3 objects. Which of the below mentioned options need not be enabled by the organization to achieve data security?

A. MFA delete for S3 objects

B. Client side encryption

C. Bucket versioning

D. Data replication

Answer: D

Explanation:

AWS S3 provides multiple options to achieve the protection of data at REST. The options include Permission (Policy), Encryption (Client and Server Side), Bucket Versioning and MFA based delete. The user can enable any of these options to achieve data protection. Data replication is an internal facility by AWS where S3 replicates each object across all the Availability Zones and the organization need not

enable it in this case.

Reference: http://media.amazonwebservices.com/AWS_Security_Best_Practices.pdf

Q8. Can I use Provisioned IOPS with VPC?

A. Only Oracle based RDS

B. No

C. Only with MSSQL based RDS

D. Yes for all RDS instances

Answer: D

Q9. You are setting up a very complex financial services grid and so far it has 5 Elastic IP (EIP) addresses.

You go to assign another EIP address, but all accounts are limited to 5 Elastic IP addresses per region by default, so you aren't able to. What is the reason for this?

A. For security reasons.

B. Hardware restrictions.

C. Public (IPV4) internet addresses are a scarce resource.

D. There are only 5 network interfaces per instance.

Answer: C

Explanation:

Public (IPV4) internet addresses are a scarce resource. There is only a limited amount of public IP space available, and Amazon EC2 is committed to helping use that space efficiently.

By default, all accounts are limited to 5 Elastic IP addresses per region. If you need more than 5 Elastic IP addresses, AWS asks that you apply for your limit to be raised. They will ask you to think through your use case and help them understand your need for additional addresses.

Reference: http://aws.amazon.com/ec2/faqs/#How_many_instances_can_I_run_in_Amazon_EC2

Q10. Which of the following is true of Amazon EC2 security group?

A. You can modify the outbound rules for EC2-Classic.

B. You can modify the rules for a security group only if the security group controls the traffic for just one instance.

C. You can modify the rules for a security group only when a new instance is created.

D. You can modify the rules for a security group at any time.

Answer: D

Explanation:

A security group acts as a virtual firewall that controls the traffic for one or more instances. When you launch an instance, you associate one or more security groups with the instance. You add rules to each security group that allow traffic to or from its associated instances. You can modify the rules for a security group at any time; the new rules are automatically applied to all instances that are associated with the security group.

Reference: http://docs.amazonwebservices.com/AWSEC2/latest/UserGuide/using-network-security.htmI