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Q225. Before I delete an EBS volume, what can I do if I want to recreate the volume later?
A. Create a copy of the EBS volume (not a snapshot)
B. Store a snapshot of the volume
C. Download the content to an EC2 instance
D. Back up the data in to a physical disk
Answer: B
Q226. Your manager has just given you access to multiple VPN connections that someone else has recently set up between all your company's offices. She needs you to make sure that the communication between the VPNs is secure. Which of the following services would be best for providing a low-cost hub-and-spoke model for primary or backup connectMty between these remote offices?
A. Amazon C|oudFront
B. AWS Direct Connect
C. AWS C|oudHSM
D. AWS VPN CIoudHub
Answer: D
Explanation:
If you have multiple VPN connections, you can provide secure communication between sites using the
AWS VPN CIoudHub. The VPN CIoudHub operates on a simple hub-and-spoke model that you can use with or without a VPC. This design is suitable for customers with multiple branch offices and existing Internet connections who would like to implement a convenient, potentially low-cost hub-and-spoke model for primary or backup connectMty between these remote offices.
Reference: http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPN_CIoudHub.htmI
Q227. Your company has recently extended its datacenter into a VPC on AVVS to add burst computing capacity as needed Members of your Network Operations Center need to be able to go to the AWS Management Console and administer Amazon EC2 instances as necessary You don't want to create new IAM users for each NOC member and make those users sign in again to the AWS Management Console Which option below will meet the needs for your NOC members?
A. Use OAuth 2 0 to retrieve temporary AWS security credentials to enable your NOC members to sign in to the AVVS Management Console.
B. Use web Identity Federation to retrieve AWS temporary security credentials to enable your NOC members to sign in to the AWS Management Console.
C. Use your on-premises SAML 2.0-compliant identity provider (IOP) to grant the NOC members federated access to the AWS Management Console via the AWS sing Ie sign-on (550) endpoint.
D. Use your on-premises SAML2.0-comp|iam identity provider (IOP) to retrieve temporary security credentials to enable NOC members to sign in to the AWS Management Console.
Answer: D
Q228. Select the correct statement: Within Amazon EC2, when using Linux instances, the device name
/dev/sda1 is .
A. reserved for EBS volumes
B. recommended for EBS volumes
C. recommended for instance store volumes
D. reserved for the root device
Answer: D
Explanation:
Within Amazon EC2, when using a Linux instance, the device name /dev/sda1 is reserved for the root device.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/device_naming.htmI
Q229. A client needs you to import some existing infrastructure from a dedicated hosting provider to AWS to try and save on the cost of running his current website. He also needs an automated process that manages backups, software patching, automatic failure detection, and recovery. You are aware that his existing set up currently uses an Oracle database. Which of the following AWS databases would be best for accomplishing this task?
A. Amazon RDS
B. Amazon Redshift
C. Amazon SimpIeDB
D. Amazon EIastiCache
Answer: A
Explanation:
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: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Welcome.html
Q230. Regarding Amazon Route 53, if your application is running on Amazon EC2 instances in two or more Amazon EC2 regions and if you have more than one Amazon EC2 instance in one or more regions, you can use to route traffic to the correct region and then use to route traffic to instances
within the region, based on probabilities that you specify.
A. weighted-based routing; alias resource record sets
B. latency-based routing; weighted resource record sets
C. weighted-based routing; weighted resource record sets
D. latency-based routing; alias resource record sets
Answer: B
Explanation:
Regarding Amazon Route 53, if your application is running on Amazon EC2 instances in two or more Amazon EC2 regions, and if you have more than one Amazon EC2 instance in one or more regions, you can use latency-based routing to route traffic to the correct region and then use weighted resource record sets to route traffic to instances within the region based on weights that you specify.
Reference: http://docs.aws.amazon.com/Route53/Iatest/DeveIoperGuide/Tutorials.html
Q231. A user wants to increase the durability and availability of the EBS volume. Which of the below mentioned actions should he perform?
A. Take regular snapshots.
B. Create an AMI.
C. Create EBS with higher capacity.
D. Access EBS regularly.
Answer: A
Explanation:
In Amazon Web Services, Amazon EBS volumes that operate with 20 GB or less of modified data since their most recent snapshot can expect an annual failure rate (AFR) between 0.1% and 0.5%. For this reason, to maximize both durability and availability of their Amazon EBS data, the user should frequently create snapshots of the Amazon EBS volumes.
Reference: http://media.amazonwebservices.com/AWS_Storage_Options.pdf
Q232. You have written a CIoudFormation template that creates I Elastic Load Balancer fronting 2 EC2 Instances. Which section of the template should you edit so that the DNS of the load balancer is returned upon creation of the stack?
A. Resources
B. Outputs
C. Parameters
D. Mappings
Answer: B
Explanation:
You can use AWS CIoudFormation’s sample templates or create your own templates to describe the AWS resources, and any associated dependencies or runtime parameters, required to run your application.
Reference:
http://docs.aws.amazon.com/AWSCIoudFormation/latest/UserGuide/outputs-section-structure.html