AWS-SysOps Exam
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Q61. - (Topic 1)
Your company Is moving towards tracking web page users with a small tracking
Image loaded on each page Currently you are serving this image out of US-East, but are starting to get concerned about the time It takes to load the image for users on the west coast.
What are the two best ways to speed up serving this image?
Choose 2 answers
A. Use Route 53's Latency Based Routing and serve the image out of US-West-2 as well as US-East-1
B. Serve the image out through CloudFront
C. Serve the image out of S3 so that it isn't being served oft of your web application tier
D. Use EBS PIOPs to serve the image faster out of your EC2 instances
Answer: A,D
Q62. - (Topic 3)
A user has launched multiple EC2 instances for the purpose of development and testing in the same region. The user wants to find the separate cost for the production and development instances. How can the user find the cost distribution?
A. The user should download the activity report of the EC2 services as it has the instance ID wise data
B. It is not possible to get the AWS cost usage data of single region instances separately
C. The user should use Cost Distribution Metadata and AWS detailed billing
D. The user should use Cost Allocation Tags and AWS billing reports
Answer: D
Explanation:
AWS provides cost allocation tags to categorize and track the AWS costs. When the user applies tags to his AWS resources (such as Amazon EC2 instances or Amazon S3 buckets., AWS generates a cost allocation report as a comma-separated value (CSV file. with the usage and costs aggregated by those tags. The user can apply tags which represent business categories (such as cost centres, application names, or instance type – Production/Dev. to organize usage costs across multiple services.
Q63. - (Topic 3)
How can an EBS volume that is currently attached to an EC2 instance be migrated from one Availability Zone to another?
A. Simply create a new volume in the other AZ and specify the original volume as the source.
B. Detach the volume, then use the ec2-migrate-volume command to move it to another AZ.
C. Create a snapshot of the volume, and create a new volume from the snapshot in the other AZ.
D. Detach the volume and attach it to another EC2 instance in the other AZ.
Answer: D
Explanation: Reference:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumes.html
Q64. - (Topic 2)
A user has enabled the Multi AZ feature with the MS SQL RDS database server. Which of the below
mentioned statements will help the user understand the Multi AZ feature better?
A. In a Multi AZ, AWS runs two DBs in parallel and copies the data asynchronously to the replica copy
B. In a Multi AZ, AWS runs two DBs in parallel and copies the data synchronously to the replica copy
C. In a Multi AZ, AWS runs just one DB but copies the data synchronously to the standby replica
D. AWS MS SQL does not support the Multi AZ feature
Answer: C
Explanation:
Amazon RDS provides high availability and failover support for DB instances using Multi-AZ deployments. In a Multi-AZ deployment, Amazon RDS automatically provisions and maintains a synchronous standby replica in a different Availability Zone. The primary DB instance is synchronously replicated across Availability Zones to a standby replica to provide data redundancy, eliminate I/O freezes, and minimize latency spikes during system backups. Running a DB instance with high availability can enhance availability during planned system maintenance, and help protect your databases against DB instance failure and Availability Zone disruption.Note that the high-availability feature is not a scaling solution for read-only scenarios; you cannot use a standby replica to serve read traffic. To service read-only traffic, you should use a read replica.
Q65. - (Topic 2)
An organization is generating digital policy files which are required by the admins for verification. Once the files are verified they may not be required in the future unless there is some compliance issue. If the organization wants to save them in a cost effective way, which is the best possible solution?
A. AWS RRS
B. AWS S3
C. AWS RDS
D. AWS Glacier
Answer: D
Explanation:
Amazon S3 stores objects according to their storage class. There are three major storage classes: Standard, Reduced Redundancy and Glacier. Standard is for AWS S3 and provides very high durability. However, the costs are a little higher. Reduced redundancy is for less critical files. Glacier is for archival and the files which are accessed infrequently. It is an extremely low-cost storage service that provides secure and durable storage for data archiving and backup.
Q66. - (Topic 1)
When creation of an EBS snapshot Is initiated but not completed the EBS volume?
A. Cannot De detached or attached to an EC2 instance until me snapshot completes
B. Can be used in read-only mode while me snapshot is in progress
C. Can be used while me snapshot Is in progress
D. Cannot be used until the snapshot completes
Answer: C
Explanation: Reference:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-copy-snapshot.html
Q67. - (Topic 2)
A user has setup a CloudWatch alarm on an EC2 action when the CPU utilization is above 75%. The alarm sends a notification to SNS on the alarm state. If the user wants to simulate the alarm action how can he achieve this?
A. Run activities on the CPU such that its utilization reaches above 75%
B. From the AWS console change the state to ‘Alarm’
C. The user can set the alarm state to ‘Alarm’ using CLI
D. Run the SNS action manually
Answer: C
Explanation:
Amazon CloudWatch alarms watch a single metric over a time period that the user specifies and performs one or more actions based on the value of the metric relative to a given threshold over a number of time periods.The user can test an alarm by setting it to any state using the SetAlarmState API (mon-set-alarm-state command.. This temporary state change lasts only until the next alarm comparison occurs.
Q68. - (Topic 2)
A user has launched a large EBS backed EC2 instance in the US-East-1a region. The user wants to achieve Disaster Recovery (DR. for that instance by creating another small instance in Europe. How can the user achieve DR?
A. Copy the running instance using the “Instance Copy” command to the EU region
B. Create an AMI of the instance and copy the AMI to the EU region. Then launch the instance from the EU AMI
C. Copy the instance from the US East region to the EU region
D. Use the “Launch more like this” option to copy the instance from one region to another
Answer: B
Explanation:
To launch an EC2 instance it is required to have an AMI in that region. If the AMI is not available in that region, then create a new AMI or use the copy command to copy the AMI from one region to the other region.
Q69. - (Topic 3)
George has shared an EC2 AMI created in the US East region from his AWS account with Stefano. George copies the same AMI to the US West region. Can Stefano access the copied AMI of George’s account from the US West region?
A. No, copy AMI does not copy the permission
B. It is not possible to share the AMI with a specific account
C. Yes, since copy AMI copies all private account sharing permissions
D. Yes, since copy AMI copies all the permissions attached with the AMI
Answer: A
Explanation:
Within EC2, when the user copies an AMI, the new AMI is fully independent of the source AMI; there is no link to the original (source. AMI. AWS does not copy launch the permissions, user-defined tags or the Amazon S3 bucket permissions from the source AMI to the new AMI. Thus, in this case by default Stefano will not have access to the AMI in the US West region.
Q70. - (Topic 3)
An AWS root account owner is trying to create a policy to access RDS. Which of the below mentioned
statements is true with respect to the above information?
A. Create a policy which allows the users to access RDS and apply it to the RDS instances
B. The user cannot access the RDS database if he is not assigned the correct IAM policy
C. The root account owner should create a policy for the IAM user and give him access to the RDS services
D. The policy should be created for the user and provide access for RDS
Answer: C
Explanation:
AWS Identity and Access Management is a web service which allows organizations to manage users and user permissions for various AWS services. If the account owner wants to create a policy for RDS, the owner has to create an IAM user and define the policy which entitles the IAM user with various RDS services such as Launch Instance, Manage security group, Manage parameter group etc.