A user is launching an EC2 instance in the US East region. Which of the below mentioned options is recommended by
AWS with respect to the selection of the availability zone?
A.
Always select the US-East-1-a zone for HA
B.
Do not select the AZ; instead let AWS select the AZ
C.
The user can never select the availability zone while launching an instance
D.
Always select the AZ while launching an instance
Explanation:
When launching an instance with EC2, AWS recommends not to select the availability zone (AZ). AWS specifies that the
default Availability Zone should be accepted. This is because it enables AWS to select the best Availability Zone based
on the system health and available capacity. If the user launches additional instances, only then an Availability Zone
should be specified. This is to specify the same or different AZ from the running instances.
B
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B
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B
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-regions-availability-zones.html
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2017 Aug new AWS Certified Solutions Architect – Professional questions updtaed today:
QUESTION
Within the IAM service a GROUP is regarded as a:
A. A collection of AWS accounts
B. It’s the group of EC2 machines that gain the permissions specified in the GROUP.
C. There’s no GROUP in IAM, but only USERS and RESOURCES.
D. A collection of users.
Answer: D
QUESTION
Amazon EC2 provides a repository of public data sets that can be seamlessly integrated into
AWS cloud-based applications.
What is the monthly charge for using the public data sets?
A. A 1 time charge of 10$ for all the datasets.
B. 1$ per dataset per month
C. 10$ per month for all the datasets
D. There is no charge for using the public data sets
Answer: D
QUESTION
In the Amazon RDS Oracle DB engine, the Database Diagnostic Pack and the Database Tuning
Pack are only available with ______________
A. Oracle Standard Edition
B. Oracle Express Edition
C. Oracle Enterprise Edition
D. None of these
Answer: C
QUESTION
You have deployed a web application, targeting a global audience across multiple AWS Regions
under the domain name example.com.
You decide to use Route53 Latency-Based Routing to serve web requests to users from the
region closest to the user. To provide business continuity in the event of server downtime you
configure weighted record sets associated with two web servers in separate Availability Zones
per region. During a DR test you notice that when you disable all web servers in one of the
regions Route53 does not automatically direct all users to the other region.
What could be happening? Choose 2 answers
A. You did not set “Evaluate Target Health” to ‘Yes” on the latency alias resource record set
associated with example.com in the region where you disabled the servers
B. The value of the weight associated with the latency alias resource record set in the region with
the disabled servers is higher than the weight for the other region
C. One of the two working web servers in the other region did not pass its HTTP health check
D. Latency resource record sets cannot be used in combination with weighted resource record sets
E. You did not setup an HTTP health check for one or more of the weighted resource record sets
associated with the disabled web servers
Answer: AE
QUESTION
An international company has deployed a multi-tier web application that relies on DynamoDB in a
single region. For regulatory reasons they need disaster recovery capability in a separate region
with a Recovery Time Objective of 2 hours and a Recovery Point Objective of 24 hours. They
should synchronize their data on a regular basis and be able to provision the web application
rapidly using CloudFormation.
The objective is to minimize changes to the existing web application, control the throughput of
DynamoDB used for the synchronization of data, and synchronize only the modified elements.
Which design would you choose to meet these requirements?
A. Use AWS Data Pipeline to schedule a DynamoDB cross region copy once a day, create a
“LastUpdated” attribute in your DynamoDB table that would represent the timestamp of the last
update and use it as a filter
B. Use AWS Data Pipeline to schedule an export of the DynamoDB table to S3 in the current region
once a day, then schedule another task Immediately after it that will import data from S3 to
DynamoDB in the other region
C. Use EMR and write a custom script to retrieve data from DynamoDB in the current region using a
SCAN operation and push it to DynamoDB in the second region
D. Send also each write into an SQS queue in the second region, use an auto-scaling group behind
Answer: B
QUESTION
You would like to create a mirror image of your production environment in another region for
disaster recovery purposes.
Which of the following AWS resources do not need to be recreated in the second region? Choose
2 answers
A. Route53 Record Sets
B. Launch Configurations
C. EC2 Key Pairs
D. Security Groups
E. IAM Roles
F. Elastic IP Addresses (EIP)
Answer: AE
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B: Do not select the AZ; instead let AWS select the AZ
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B
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