AWS-Certified-Solutions-Architect-Professional Free Practice Test

Your company currently has a 2-tier web application running in an on-premises data center. You have experienced several infrastructure failures in the past two months resulting in significant financial losses. Your CIO is strongly agreeing to move the application to AWS. While working on achieving buy-in from the other company executives, he asks you to develop a disaster recovery plan to help improve Business continuity in the short term. He specifies a target Recovery Time Objective (RTO) of 4 hours and a Recovery Point Objective (RPO) of 1 hour or less. He also asks you to implement the solution within 2 weeks. Your database is 200GB in size and you have a 20Mbps Internet connection. How would you do this while minimizing costs?

1. A. Create an EBS backed private AMI which includes a fresh install of your applicatio
2. B. Develop a Cloud Formation template which includes your AMI and the required EC2, AutoScaIing, and ELB resources to support deploying the application across Multiple- Availability-Zone
3. C. Asynchronously replicate transactions from your on-premises database to a database instance in AWS across a secure VPN connection.
4. D. Deploy your application on EC2 instances within an Auto Scaling group across multiple availability zone
5. E. Asynchronously replicate transactions from your on-premises database to a database instance in AWS across a secure VPN connection.
6. F. Create an EBS backed private AMI which includes a fresh install of your applicatio
7. G. Setup a script in your data center to backup the local database every 1 hour and to encrypt and copy the resulting file to an S3 bucket using multi-part upload.
8. H. Install your application on a compute-optimized EC2 instance capable of supporting the appIication's average loa
9. I. Synchronously replicate transactions from your on-premises database to a database instance in AWS across a secure Direct Connect connection.

Correct Answer: A

IAM Secure And Scalable is an organization which provides scalable and secure SAAS to its clients. They are planning to host a web server and App server on AWS VPC as separate tiers. The organization wants to implement the scalability by configuring Auto Scaling and load balancer with their app servers (middle tier) too. Which of the below mentioned options suits their requirements?

1. A. Since ELB is internet facing, it is recommended to setup HAProxy as the Load balancer within the VPC.
2. B. Create an Internet facing ELB with VPC and configure all the App servers with it.
3. C. The user should make ELB with EC2-CLASSIC and enable SSH with it for security.
4. D. Create an Internal Load balancer with VPC and register all the App sewers with i

Correct Answer: D
The Amazon Virtual Private Cloud (Amazon VPC) allows the user to define a virtual networking environment in a private, isolated section of the Amazon Web Services (AWS) cloud. The user has complete control over the virtual networking environment. Within this virtual private cloud, the user can launch AWS resources, such as an ELB, and EC2 instances.
There are two ELBs available with VPC: internet facing and internal (private) ELB. For internal servers, such as App sewers the organization can create an internal load balancer in their VPC and then place back-end application instances behind the internal load balancer. The internal load balancer will route
requests to the back-end application instances, which are also using private IP addresses and only accept requests from the internal load balancer.
Reference:
http://docs.aws.amazon.com/EIasticLoadBalancing/latest/DeveIoperGuide/vpc-IoadbaIancer-types.html

Which of the following components of AWS Data Pipeline specifies the business logic of your data management?

1. A. Task Runner
2. B. Pipeline definition
3. C. AWS Direct Connect
4. D. Amazon Simple Storage Service (Amazon S3)

Correct Answer: B
A pipeline definition specifies the business logic of your data management.
Reference: http://docs.aws.amazon.com/datapipeline/latest/DeveIoperGuide/what-is-datapipeline.htmI

Your company has an on-premises multi-tier PHP web application, which recently experienced downtime due to a large burst In web traffic due to a company announcement Over the coming days, you are expecting similar announcements to drive similar unpredictable bursts, and are looking to find ways to quickly improve your infrastructures ability to handle unexpected increases in traffic.
The application currently consists of 2 tiers a web tier which consists of a load balancer and several Linux Apache web servers as well as a database tier which hosts a Linux server hosting a MySQL database. Which scenario below will provide full site functionality, while helping to improve the ability of your application in the short timeframe required?

1. A. Failover environment: Create an S3 bucket and configure it for website hostin
2. B. Migrate your DNS to Route53 using zone file import, and leverage Route53 DNS failover to failover to the S3 hosted website.
3. C. Hybrid environment: Create an AMI, which can be used to launch web sewers in EC2. Create an Auto Scaling group, which uses the AMI to scale the web tier based on incoming traffi
4. D. Leverage Elastic Load Balancing to balance traffic between on-premises web servers and those hosted In AWS.
5. E. Offload traffic from on-premises environment: Setup a CIoudFront distribution, and configure CIoudFront to cache objects from a custom origi
6. F. Choose to customize your object cache behavior, and select a TTL that objects should exist in cache.
7. G. Migrate to AWS: Use VM Import/Export to quickly convert an on-premises web server to an AM
8. H. Create an Auto Scaling group, which uses the imported AMI to scale the web tier based on incoming traffi
9. I. Create an RDS read replica and setup replication between the RDS instance and on-premises MySQL server to migrate the database.

Correct Answer: C

You are setting up some EBS volumes for a customer who has requested a setup which includes a RAID (redundant array of inexpensive disks). AWS has some recommendations for RAID setups. Which RAID setup is not recommended for Amazon EBS?

1. A. RAID 1 only
2. B. RAID 5 only
3. C. RAID 5 and RAID 6
4. D. RAID 0 only

Correct Answer: C
With Amazon EBS, you can use any of the standard RAID configurations that you can use with a traditional bare metal server, as long as that particular RAID configuration is supported by the operating
system for your instance. This is because all RAID is accomplished at the software level. For greater I/O performance than you can achieve with a single volume, RAID 0 can stripe multiple volumes together; for on-instance redundancy, RAID 1 can mirror two volumes together.
RAID 5 and RAID 6 are not recommended for Amazon EBS because the parity write operations of these RAID modes consume some of the IOPS available to your volumes.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/raid-config.html