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Q1. What is the Reduced Redundancy option in Amazon 53?
A. Less redundancy for a lower cost.
B. It doesn't exist in Amazon 53, but in Amazon EBS.
C. It allows you to destroy any copy of your files outside a specific jurisdiction.
D. It doesn't exist at all
Answer: A
Q2. An existing client comes to you and says that he has heard that launching instances into a VPC (virtual private cloud) is a better strategy than launching instances into a EC2-classic which he knows is what you currently do. You suspect that he is correct and he has asked you to do some research about this and get back to him. Which of the following statements is true in regards to what ability launching your instances into a VPC instead of EC2-Classic gives you?
A. All of the things listed here.
B. Change security group membership for your instances while they're running
C. Assign static private IP addresses to your instances that persist across starts and stops
D. Define network interfaces, and attach one or more network interfaces to your instances
Answer: A
Explanation:
By launching your instances into a VPC instead of EC2-Classic, you gain the ability to: Assign static private IP addresses to your instances that persist across starts and stops Assign multiple IP addresses to your instances
Define network interfaces, and attach one or more network interfaces to your instances Change security group membership for your instances while they're running
Control the outbound traffic from your instances (egress filtering) in addition to controlling the inbound traffic to them (ingress filtering)
Add an additional layer of access control to your instances in the form of network access control lists (ACL)
Run your instances on single-tenant hardware
Reference: http://media.amazonwebservices.com/AWS_CIoud_Best_Practices.pdf
Q3. You have been asked to set up monitoring of your network and you have decided that Cloudwatch would be the best service to use. Amazon CIoudWatch monitors your Amazon Web Services (AWS) resources and the applications you run on AWS in real-time. You can use CIoudWatch to collect and track metrics, which are the variables you want to measure for your resources and applications. Which of the following items listed can AWS Cloudwatch monitor?
A. Log files your applications generate.
B. All of the items listed on this page.
C. System-wide visibility into resource utilization, application performance, and operational health.
D. Custom metrics generated by your applications and services .
Answer: B
Explanation:
Amazon CIoudWatch can monitor AWS resources such as Amazon EC2 instances, Amazon DynamoDB tables, and Amazon RDS DB instances, as well as custom metrics generated by your applications and services, and any log files your applications generate. You can use Amazon CIoudWatch to gain
system-wide visibility into resource utilization, application performance, and operational health. You can use these insights to react and keep your application running smoothly.
Reference: http://aws.amazon.com/cIoudwatch/
Q4. You have a periodic Image analysis application that gets some files In Input analyzes them and tor each file writes some data in output to a ten file the number of files in input per day is high and concentrated in a few hours of the day.
Currently you have a server on EC2 with a large EBS volume that hosts the input data and the results it takes almost 20 hours per day to complete the process
What services could be used to reduce the elaboration time and improve the availability of the solution?
A. 53 to store 1/0 files. SOS to distribute elaboration commands to a group of hosts working in parallel. Auto scaling to dynamically size the group of hosts depending on the length of the SOS queue
B. EBS with Provisioned IOPS (PIOPS) to store 1/0 files. SNS to distribute elaboration commands to a group of hosts working in parallel Auto Scaling to dynamically size the group of hosts depending on the number of SNS notifications
C. 53 to store 1/0 files, SNS to distribute evaporation commands to a group of hosts working in parallel. Auto scaling to dynamically size the group of hosts depending on the number of SNS notifications
D. EBS with Provisioned IOPS (PIOPS) to store 1/0 files SOS to distribute elaboration commands to a group of hosts working in parallel Auto Scaling to dynamically size the group ot hosts depending on the length of the SOS queue.
Answer: D
Explanation:
Amazon EBS allows you to create storage volumes and attach them to Amazon EC2 instances. Once attached, you can create a file system on top of these volumes, run a database, or use them in any other way you would use a block device. Amazon EBS volumes are placed in a specific Availability Zone, where they are automatically replicated to protect you from the failure of a single component.
Amazon EBS provides three volume types: General Purpose (SSD), Provisioned IOPS (SSD), and Magnetic. The three volume types differ in performance characteristics and cost, so you can choose the right storage performance and price for the needs of your applications. All EBS volume types offer the same durable snapshot capabilities and are designed for 99.999% availability.
Q5. Fill in the blanks: _ let you categorize your EC2 resources in different ways, for example, by purpose, owner, or environment.
A. wildcards
B. pointers
C. Tags
D. special filters
Answer: C
Q6. A major finance organisation has engaged your company to set up a large data mining application. Using AWS you decide the best service for this is Amazon Elastic MapReduce(EMR) which you know uses Hadoop. Which of the following statements best describes Hadoop?
A. Hadoop is 3rd Party software which can be installed using AMI
B. Hadoop is an open source python web framework
C. Hadoop is an open source Java software framework
D. Hadoop is an open source javascript framework
Answer: C
Explanation:
Amazon EMR uses Apache Hadoop as its distributed data processing engine.
Hadoop is an open source, Java software framework that supports data-intensive distributed applications running on large clusters of commodity hardware. Hadoop implements a programming model named "MapReduce," where the data is dMded into many small fragments of work, each of which may be executed on any node in the cluster.
This framework has been widely used by developers, enterprises and startups and has proven to be a reliable software platform for processing up to petabytes of data on clusters of thousands of commodity machines.
Reference: http://aws.amazon.com/elasticmapreduce/faqs/
Q7. A user has defined an AutoScaIing termination policy to first delete the instance with the nearest billing hour. AutoScaIing has launched 3 instances in the US-East-1A region and 2 instances in the US-East-1 B region. One of the instances in the US-East-1B region is running nearest to the billing hour. Which instance will AutoScaIing terminate first while executing the termination action?
A. Random Instance from US-East-1A
B. Instance with the nearest billing hour in US-East-1 B
C. Instance with the nearest billing hour in US-East-1A
D. Random instance from US-East-1B
Answer: C
Explanation:
Even though the user has configured the termination policy, before AutoScaIing selects an instance to terminate, it first identifies the Availability Zone that has more instances than the other Availability Zones used by the group. Within the selected Availability Zone, it identifies the instance that matches the specified termination policy.
Reference: http://docs.aws.amazon.com/AutoScaIing/latest/DeveIoperGuide/us-termination-policy.html
Q8. True or False: When using IAM to control access to your RDS resources, the key names that can be used are case sensitive. For example, aws:CurrentTime is NOT equivalent to AWS:currenttime.
A. TRUE
B. FALSE
Answer: A
Q9. 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
Q10. 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
Q11. Which service enables AWS customers to manage users and permissions in AWS?
A. AWS Access Control Service (ACS}
B. AWS Identity and Access Management (IAM}
C. AWS Identity Manager (AIM}
Answer: B
Q12. What is the time period with which metric data is sent to CIoudWatch when detailed monitoring is enabled on an Amazon EC2 instance?
A. 15 minutes
B. 5 minutes
C. 1 minute
D. 45 seconds
Answer: C
Explanation:
By default, Amazon EC2 metric data is automatically sent to CIoudWatch in 5-minute periods. However, you can, enable detailed monitoring on an Amazon EC2 instance, which sends data to CIoudWatch in
1-minute periods
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-cloudwatch.htmI
Q13. Identify a true statement about the On-Demand instances purchasing option provided by Amazon EC2.
A. Pay for the instances that you use by the hour, with no long-term commitments or up-front payments.
B. Make a low, one-time, up-front payment for an instance, reserve it for a one- or three-year term, and pay a significantly lower hourly rate for these instances.
C. Pay for the instances that you use by the hour, with long-term commitments or up-front payments.
D. Make a high, one-time, all-front payment for an instance, reserve it for a one- or three-year term, and
pay a significantly higher hourly rate for these instances.
Answer: A
Explanation:
On-Demand instances allow you to pay for the instances that you use by the hour, with no long-term commitments or up-front payments.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/reserved-instances-offerings.html
Q14. You are looking at ways to improve some existing infrastructure as it seems a lot of engineering resources are being taken up with basic management and monitoring tasks and the costs seem to be excessive.
You are thinking of deploying Amazon E|asticCache to help. Which of the following statements is true in regards to EIasticCache?
A. You can improve load and response times to user actions and queries however the cost associated with scaling web applications will be more.
B. You can't improve load and response times to user actions and queries but you can reduce the cost associated with scaling web applications.
C. You can improve load and response times to user actions and queries however the cost associated with scaling web applications will remain the same.
D. You can improve load and response times to user actions and queries and also reduce the cost associated with scaling web applications.
Answer: D
Explanation:
Amazon EIastiCache is a web service that makes it easy to deploy and run Memcached or Redis protocol-compliant server nodes in the cloud. Amazon EIastiCache improves the performance of web applications by allowing you to retrieve information from a fast, managed, in-memory caching system, instead of relying entirely on slower disk-based databases. The service simplifies and offloads the management, monitoring and operation of in-memory cache environments, enabling your engineering resources to focus on developing applications.
Using Amazon EIastiCache, you can not only improve load and response times to user actions and queries, but also reduce the cost associated with scaling web applications.
Reference: https://aws.amazon.com/eIasticache/faqs/
Q15. 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