AWS-Solution-Architect-Associate Exam
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Q191. You require the ability to analyze a customer's clickstream data on a website so they can do behavioral analysis. Your customer needs to know what sequence of pages and ads their customer clicked on. This data will be used in real time to modify the page layouts as customers click through the site to increase stickiness and advertising click-through. Which option meets the requirements for captioning and analyzing this data?
A. Log clicks in weblogs by URL store to Amazon 53, and then analyze with Elastic MapReduce
B. Push web clicks by session to Amazon Kinesis and analyze behavior using Kinesis workers
C. Write click events directly to Amazon Redshift and then analyze with SQL
D. Publish web clicks by session to an Amazon SQS queue men periodically drain these events to Amazon RDS and analyze with sol
Answer: B
Explanation:
Reference: http:/ /www.slideshare.net/AmazonWebServices/aws-webcast-introduction-to-amazon-kinesis
Q192. Making your snapshot public shares all snapshot data with everyone. Can the snapshots with AWS Market place product codes be made public?
A. No
B. Yes
Answer: B
Q193. A large real -estate brokerage is exploring the option o( adding a cost-effective location based alert to their existing mobile application The application backend infrastructure currently runs on AWS Users who opt in to this service will receive alerts on their mobile device regarding real-estate otters in proximity to their location. For the alerts to be relevant delivery time needs to be in the low minute count the existing mobile app has 5 million users across the us Which one of the following architectural suggestions would you make to the customer?
A. The mobile application will submit its location to a web service endpoint utilizing Elastic Load Balancing and EC2 instances: DynamoDB will be used to store and retrieve relevant otters EC2 instances will communicate with mobile earners/device providers to push alerts back to mobile application.
B. Use AWS DirectConnect or VPN to establish connectMty with mobile carriers EC2 instances will receive the mobile applications ' location through carrier connection: ROS will be used to store and relevant relevant offers EC2 instances will communicate with mobile carriers to push alerts back to the mobile application
C. The mobile application will send device location using SOS. EC2 instances will retrieve the re Ievant others from DynamoDB AWS MobiIe Push will be used to send offers to the mobile application
D. The mobile application will send device location using AWS Nlobile Push EC2 instances will retrieve the relevant offers from DynamoDB EC2 instances will communicate with mobile carriers/device providers to push alerts back to the mobile application.
Answer: A
Q194. In Amazon EC2, how many Elastic IP addresses can you have by default?
A. 10
B. 2
C. 5
D. 20
Answer: C
Explanation:
The number of Elastic IP addresses you can have in EC2 is 5.
Reference: http://docs.aws.amazon.com/generaI/latest/gr/aws_service_Iimits.htmI#|imits_ec2
Q195. If I want to run a database in an Amazon instance, which is the most recommended Amazon storage opHon?
A. Amazon Instance Storage
B. Amazon EBS
C. You can't run a database inside an Amazon instance.
D. Amazon 53
Answer: B
Q196. 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 resu Iting 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?
A. Create an EBS backed private AMI which includes a fresh install of your application. Develop a CIoudFormation template which includes your AMI and the required EC2, AutoScaIing, and ELB resources to support deploying the application across Multiple- Availability-Zones. Asynchronously replicate transactions from your on-premises database to a database instance in AWS across a secure VPN connection.
B. Deploy your application on EC2 instances within an Auto Scaling group across multiple availability zones. Asynchronously replicate transactions from your on-premises database to a database instance in AWS across a secure VPN connection.
C. Create an EBS backed private AMI which includes a fresh install of your application. 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 53 bucket using multi-part upload.
D. Install your application on a compute-optimized EC2 instance capable of supporting the application 's average load. Synchronously replicate transactions from your on-premises database to a database instance in AWS across a secure Direct Connect connection.
Answer: A
Explanation:
Overview of Creating Amazon EBS-Backed AMIs
First, launch an instance from an AMI that's similar to the AMI that you'd like to create. You can connect to your instance and customize it. When the instance is configured correctly, ensure data integrity by
stopping the instance before you create an AMI, then create the image. When you create an Amazon EBS-backed AMI, we automatically register it for you.
Amazon EC2 powers down the instance before creating the AMI to ensure that everything on the instance is stopped and in a consistent state during the creation process. If you're confident that your instance is in a consistent state appropriate for AMI creation, you can tell Amazon EC2 not to power down and reboot the instance. Some file systems, such as XFS, can freeze and unfreeze actMty, making it safe to create the image without rebooting the instance.
During the AMI-creation process, Amazon EC2 creates snapshots of your instance's root volume and any other EBS volumes attached to your instance. If any volumes attached to the instance are encrypted, the new AMI only launches successfully on instances that support Amazon EBS encryption. For more information, see Amazon EBS Encryption.
Depending on the size of the volumes, it can take several minutes for the AMI-creation process to complete (sometimes up to 24 hours).You may find it more efficient to create snapshots of your volumes prior to creating your AMI. This way, only small, incremental snapshots need to be created when the AMI is created, and the process completes more quickly (the total time for snapshot creation remains the same). For more information, see Creating an Amazon EBS Snapshot.
After the process completes, you have a new AMI and snapshot created from the root volume of the instance. When you launch an instance using the new AMI, we create a new EBS volume for its root volume using the snapshot. Both the AMI and the snapshot incur charges to your account until you delete them. For more information, see Deregistering Your AMI.
If you add instance-store volumes or EBS volumes to your instance in addition to the root device volume, the block device mapping for the new AMI contains information for these volumes, and the block device mappings for instances that you launch from the new AMI automatically contain information for these volumes. The instance-store volumes specified in the block device mapping for the new instance are new and don't contain any data from the instance store volumes of the instance you used to create the AMI. The data on EBS volumes persists. For more information, see Block Device Mapping.
Q197. A user has launched 10 EC2 instances inside a placement group. Which of the below mentioned statements is true with respect to the placement group?
A. All instances must be in the same AZ
B. All instances can be across multiple regions
C. The placement group cannot have more than 5 instances
D. All instances must be in the same region
Answer: A
Explanation:
A placement group is a logical grouping of EC2 instances within a single Availability Zone. Using placement groups enables applications to participate in a low-latency, 10 Gbps network. Placement groups are recommended for applications that benefit from low network latency, high network throughput or both.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/placement-groups.html
Q198. In Amazon EC2 Container Service, are other container types supported?
A. Yes, EC2 Container Service supports any container service you need.
B. Yes, EC2 Container Service also supports Microsoft container service.
C. No, Docker is the only container platform supported by EC2 Container Service presently.
D. Yes, EC2 Container Service supports Microsoft container service and Openstack.
Answer: C
Explanation:
In Amazon EC2 Container Service, Docker is the only container platform supported by EC2 Container Service presently.
Reference: http://aws.amazon.com/ecs/faqs/
Q199. A user is planning to make a mobile game which can be played online or offline and will be hosted on EC2.
The user wants to ensure that if someone breaks the highest score or they achieve some milestone they can inform all their colleagues through email. Which of the below mentioned AWS services helps achieve this goal?
A. AWS Simple Workflow Service.
B. AWS Simple Email Service.
C. Amazon Cognito
D. AWS Simple Queue Service.
Answer: B
Explanation:
Amazon Simple Email Service (Amazon SES) is a highly scalable and cost-effective email-sending service for businesses and developers. It integrates with other AWS services, making it easy to send emails from applications that are hosted on AWS.
Reference: http://aws.amazon.com/ses/faqs/
Q200. A major customer has asked you to set up his AWS infrastructure so that it will be easy to recover in the case of a disaster of some sort. Which of the following is important when thinking about being able to quickly launch resources in AWS to ensure business continuity in case of a disaster?
A. Create and maintain AM|s of key sewers where fast recovery is required.
B. Regularly run your sewers, test them, and apply any software updates and configuration changes.
C. All items listed here are important when thinking about disaster recovery.
D. Ensure that you have all supporting custom software packages available in AWS.
Answer: C
Explanation:
In the event of a disaster to your AWS infrastructure you should be able to quickly launch resources in Amazon Web Services (AWS) to ensure business continuity.
The following are some key steps you should have in place for preparation:
1. Set up Amazon EC2 instances to replicate or mirror data.
2. Ensure that you have all supporting custom software packages available in AWS.
3. Create and maintain AMIs of key servers where fast recovery is required.
4. Regularly run these servers, test them, and apply any software updates and configuration changes.
5. Consider automating the provisioning of AWS resources.
Reference: http://d36cz9buwru1tt.cIoudfront.net/AWS_Disaster_Recovery.pdf