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Q1. Having set up a website to automatically be redirected to a backup website if it fails, you realize that there are different types of failovers that are possible. You need all your resources to be available the majority of the time. Using Amazon Route 53 which configuration would best suit this requirement?
A. Active-active failover.
B. None. Route 53 can't failover.
C. Active-passive failover.
D. Active-active-passive and other mixed configurations.
Answer: A
Explanation:
You can set up a variety of failover configurations using Amazon Route 53 alias: weighted, latency, geolocation routing, and failover resource record sets.
Active-active failover: Use this failover configuration when you want all of your resources to be available the majority of the time. When a resource becomes unavailable, Amazon Route 53 can detect that it's unhealthy and stop including it when responding to queries.
Active-passive failover: Use this failover configuration when you want a primary group of resources to be available the majority of the time and you want a secondary group of resources to be on standby in case all of the primary resources become unavailable. When responding to queries, Amazon Route 53 includes
only the healthy primary resources. If all of the primary resources are unhealthy, Amazon Route 53 begins to include only the healthy secondary resources in response to DNS queries.
Active-active-passive and other mixed configurations: You can combine alias and non-alias resource record sets to produce a variety of Amazon Route 53 behaviors.
Reference: http://docs.aws.amazon.com/Route53/Iatest/DeveIoperGuide/dns-failover.html
Q2. To serve Web traffic for a popular product your chief financial officer and IT director have purchased 10 ml large heavy utilization Reserved Instances (Rls) evenly spread across two availability zones:
Route 53 is used to deliver the traffic to an Elastic Load Balancer (ELB). After several months, the product grows even more popular and you need additional capacity As a result, your company purchases two C3.2x|arge medium utilization Rls You register the two c3 2xIarge instances with your ELB and quickly find that the ml large instances are at 100% of capacity and the c3 2xIarge instances have significant capacity that's unused Which option is the most cost effective and uses EC2 capacity most effectively?
A. Use a separate ELB for each instance type and distribute load to ELBs with Route 53 weighted round robin
B. Configure Autoscaning group and Launch Configuration with ELB to add up to 10 more on-demand ml large instances when triggered by Cloudwatch shut off c3 2xIarge instances
C. Route traffic to EC2 ml large and c3 2xIarge instances directly using Route 53 latency based routing and health checks shut off ELB
D. Configure ELB with two c3 2xiarge Instances and use on-demand Autoscaling group for up to two additional c3.2x|arge instances Shut on mi .|arge instances.
Answer: D
Q3. You are architecting an auto-scalable batch processing system using video processing pipelines and Amazon Simple Queue Service (Amazon SQS) for a customer. You are unsure of the limitations of SQS and need to find out. What do you think is a correct statement about the limitations of Amazon SQS?
A. It supports an unlimited number of queues but a limited number of messages per queue for each user but automatically deletes messages that have been in the queue for more than 4 weeks.
B. It supports an unlimited number of queues and unlimited number of messages per queue for each user but automatically deletes messages that have been in the queue for more than 4 days.
C. It supports an unlimited number of queues but a limited number of messages per queue for each user but automatically deletes messages that have been in the queue for more than 4 days.
D. It supports an unlimited number of queues and unlimited number of messages per queue for each user but automatically deletes messages that have been in the queue for more than 4 weeks.
Answer: B
Explanation:
Amazon Simple Queue Service (Amazon SQS) is a messaging queue service that handles message or workflows between other components in a system.
Amazon SQS supports an unlimited number of queues and unlimited number of messages per queue for each user. Please be aware that Amazon SQS automatically deletes messages that have been in the queue for more than 4 days.
Reference: http://aws.amazon.com/documentation/sqs/
Q4. 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
Q5. You need to measure the performance of your EBS volumes as they seem to be under performing. You have come up with a measurement of 1,024 KB I/O but your colleague tells you that EBS volume performance is measured in IOPS. How many IOPS is equal to 1,024 KB I/O?
A. 16
B. 256
C. 8
D. 4
Answer: D
Explanation:
Several factors can affect the performance of Amazon EBS volumes, such as instance configuration, I/O characteristics, workload demand, and storage configuration.
IOPS are input/output operations per second. Amazon EBS measures each I/O operation per second
(that is 256 KB or smaller) as one IOPS. I/O operations that are larger than 256 KB are counted in 256 KB capacity units.
For example, a 1,024 KB I/O operation would count as 4 IOPS.
When you provision a 4,000 IOPS volume and attach it to an EBS-optimized instance that can provide the necessary bandwidth, you can transfer up to 4,000 chunks of data per second (provided that the I/O does not exceed the 128 MB/s per volume throughput limit of General Purpose (SSD) and Provisioned IOPS (SSD) volumes).
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSPerformance.htmI
Q6. Your supervisor has asked you to build a simple file synchronization service for your department. He doesn't want to spend too much money and he wants to be notified of any changes to files by email. What do you think would be the best Amazon service to use for the email solution?
A. Amazon SES
B. Amazon CIoudSearch
C. Amazon SWF
D. Amazon AppStream
Answer: A
Explanation:
File change notifications can be sent via email to users following the resource with Amazon Simple Email Service (Amazon SES), an easy-to-use, cost-effective email solution.
Reference: http://media.amazonwebservices.com/architecturecenter/AWS_ac_ra_fiIesync_08.pdf
Q7. Are you able to integrate a multi-factor token service with the AWS Platform?
A. Yes, using the AWS multi-factor token devices to authenticate users on the AWS platform.
B. No, you cannot integrate multi-factor token devices with the AWS platform.
C. Yes, you can integrate private multi-factor token devices to authenticate users to the AWS platform.
Answer: A
Q8. What does Amazon E|astiCache provide?
A. A senrice by this name doesn't exist. Perhaps you mean Amazon C|oudCache.
B. A virtual server with a huge amount of memory.
C. A managed In-memory cache service.
D. An Amazon EC2 instance with the Memcached software already pre-installed.
Answer: C
Q9. A/An _ acts as a firewall that controls the traffic allowed to reach one or more instances.
A. security group
B. ACL
C. IAM
D. Private IP Addresses
Answer: A
Q10. What is the default maximum number of Access Keys per user?
A. 10
B. 15
C. 2
D. 20
Answer: C
Explanation:
The default maximum number of Access Keys per user is 2.
Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/LimitationsOnEntities.htmI
Q11. Amazon EC2 provides a . It is an HTTP or HTTPS request that uses the HTTP verbs GET or POST.
A. web database
B. .net framework
C. Query API
D. C library
Answer: C
Explanation:
Amazon EC2 provides a Query API. These requests are HTTP or HTTPS requests that use the HTTP verbs GET or POST and a Query parameter named Action.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/APIReference/making-api-requests.html
Q12. You are planning and configuring some EBS volumes for an application. In order to get the most performance out of your EBS volumes, you should attach them to an instance with enough to support your volumes.
A. Redundancy
B. Storage
C. Bandwidth
D. Memory
Answer: C
Explanation:
When you plan and configure EBS volumes for your application, it is important to consider the configuration of the instances that you will attach the volumes to. In order to get the most performance out of your EBS volumes, you should attach them to an instance with enough bandwidth to support your volumes, such as an EBS-optimized instance or an instance with 10 Gigabit network connectMty. This is especially important when you use General Purpose (SSD) or Provisioned IOPS (SSD) volumes, or when you stripe multiple volumes together in a RAID configuration.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-ec2-config.htmI
Q13. Your organization is in the business of architecting complex transactional databases. For a variety of reasons, this has been done on EBS. What is AWS's recommendation for customers who have architected databases using EBS for backups?
A. Backups to Amazon S3 be performed through the database management system.
B. Backups to AWS Storage Gateway be performed through the database management system.
C. If you take regular snapshots no further backups are required.
D. Backups to Amazon Glacier be performed through the database management system.
Answer: A
Explanation:
Data stored in Amazon EBS volumes is redundantly stored in multiple physical locations as part of normal operation of those services and at no additional charge.
However, Amazon EBS replication is stored within the same availability zone, not across multiple zones; therefore, it is highly recommended that you conduct regular snapshots to Amazon S3 for long-term data durability.
For customers who have architected complex transactional databases using EBS, it is recommended that backups to Amazon S3 be performed through the database management system so that distributed transactions and logs can be checkpointed.
AWS does not perform backups of data that are maintained on virtual disks attached to running instances on Amazon EC2.
Reference: http://d0.awsstatic.com/whitepapers/Security/AWS%20Security%20Whitepaper.pdf
Q14. If I want an instance to have a public IP address, which IP address should I use'?
A. Elastic I P Address
B. Class B IP Address
C. Class A IP Address
D. Dynamic IP Address
Answer: A
Q15. When you run a DB Instance as a Multi-AZ deployment, the " _ " serves database writes and reads
A. secondary
B. backup
C. stand by
D. primary
Answer: D