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AWS-SAA练习题735题

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AWS-SAA练习题735题 AWS-Solution-Architect-Associate.v2018-01 735Q

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Amazon AWS-Solution-Architect-Associate

735Q

Exam A

QUESTION 1

Amazon SWF is designed to help users.

A. Design graphical user interface interactions.

B. Manage user identification and authorization.

C. Store Web content.

D. Coordinate synchronous and asynchronous tasks which are distributed and fault tolerant.

Correct Answer: D

Explanation

Explanation/Reference:

QUESTION 2 Can I control if and when MySQL based RDS Instance is upgraded to new

supported versions?

A. No

B. Only in VPC

C. Yes

Correct Answer: C

Explanation

Explanation/Reference:

QUESTION 3 What does Amazon Elastic

Beanstalk provide?

A. A scalable storage appliance on top of Amazon Web Services.

B. An application container on top of Amazon Web Services.

C. A service by this name doesn't exist.

D. A scalable cluster of EC2 instances.

Correct Answer: B

Explanation

Explanation/Reference:

QUESTION 4

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

Correct Answer: B

Explanation

Explanation/Reference:

http://docs.aws.amazon.com/directconnect/latest/UserGuide/usingiam.html Key names are case-insensitive.

For example, aws:CurrentTime is equivalent to AWS:currenttime.

QUESTION 5 What will be the status of the snapshot until the

snapshot is complete.

A. running

B. working

C. progressing

D. pending

Correct Answer: D

Explanation

Explanation/Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-creating-

snapshot.html

QUESTION 6 Can we attach an EBS volume to more than one EC2 instance at

the same time?

A. No

B. Yes.

C. Only EC2-optimized EBS volumes.

D. Only in read mode.

Correct Answer: A

Explanation

Explanation/Reference:

QUESTION 7 True or False: Automated backups are enabled by default for a

new DB Instance.

A. TRUE

B. FALSE

Correct Answer: A

Explanation

Explanation/Reference:

QUESTION 8

What does the AWS Storage Gateway provide?

A. It allows to integrate on-premises IT environments with Cloud Storage.

B. A direct encrypted connection to Amazon S3.

C. It's a backup solution that provides an on-premises Cloud storage.

D. It provides an encrypted SSL endpoint for backups in the Cloud.

Correct Answer: A

Explanation

Explanation/Reference:

QUESTION 9 Amazon RDS automated backups and DB Snapshots are currently supported for only the

storage engine.

A. InnoDB

B. MyISAM

Correct Answer: A

Explanation

Explanation/Reference:

QUESTION 10 How many relational database engines does RDS

currently support?

A. Three: MySQL, Oracle and Microsoft SQL Server.

B. Just two: MySQL and Oracle.

C. Six: Amazon Aurora, Oracle, Microsoft SQL Server, PostgreSQL, MySQL and MariaDB.

D. Just one: MySQL.

Correct Answer: C

Explanation

Explanation/Reference:

Amazon RDS provides you six familiar database engines to choose from, including Amazon Aurora, Oracle,

Microsoft SQL Server, PostgreSQL, MySQL and MariaDB. https://aws.amazon.com/rds/?nc1=hls

QUESTION 11 Fill in the blanks: The base URI for all requests for

instance metadata is .

A. http://254.169.169.254/latest/

B. http://169.169.254.254/latest/C. http://127.0.0.1/latest/

D. http://169.254.169.254/latest/

Correct Answer: D

Explanation

Explanation/Reference:

http://aws.amazon.com/search?searchQuery=metadata&searchPath=all&x=0&y=0

QUESTION 12 While creating the snapshots using the command line tools, which command

should I be using?

A. ec2-deploy-snapshot

B. ec2-fresh-snapshot

C. ec2-create-snapshot

D. ec2-new-snapshot

Correct Answer: C

Explanation

Explanation/Reference:

http://docs.aws.amazon.com/cli/latest/reference/ec2/create-snapshot.html

QUESTION 13

Typically, you want your application to check whether a request generated an error before you spend any time

processing results. The easiest way to find out if an error occurred is to look for an node in the response from

the Amazon RDS API.

A. Incorrect

B. Error

C. FALSE

Correct Answer: B

Explanation

Explanation/Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/APITroubleshooting.html

QUESTION 14 What are the two types of licensing options available for using Amazon

RDS for Oracle?

A. BYOL and Enterprise License

B. BYOL and License Included

C. Enterprise License and License Included

D. Role based License and License Included

Correct Answer: B

Explanation

Explanation/Reference:

https://aws.amazon.com/rds/oracle/

QUESTION 15

What does a "Domain" refer to in Amazon SWF?

A. A security group in which only tasks inside can communicate with each other

B. A special type of worker

C. A collection of related Workflows

D. The DNS record for the Amazon SWF service

Correct Answer: C

Explanation

Explanation/Reference:

Domains provide a way of scoping Amazon SWF resources within your AWS account. All the components of a

workflow, such as the workflow type and activity types, must be specified to be in a domain. It is possible to

have more than one workflow in a domain; however, workflows in different domains cannot interact with each

other. http://docs.aws.amazon.com/amazonswf/latest/developerguide/swf-dev-domain.html

QUESTION 16

EBS Snapshots occur .

A. Asynchronously

B. Synchronously

C. Weekly

Correct Answer: A

Explanation

Explanation/Reference:

Snapshots occur asynchronously; the point-in-time snapshot is created immediately, but the status of the

snapshot is pending until the snapshot is complete (when all of the modified blocks have been transferred to

Amazon S3), which can take several hours for large initial snapshots or subsequent snapshots where many

blocks have changed. http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-creating-snapshot.html

QUESTION 17 Disabling automated backups disable the point-

in-time recovery.

A. if configured to can

B. will never

C. will

Correct Answer: C

Explanation

Explanation/Reference:

QUESTION 18

Out of the stripping options available for the EBS volumes, which one has the following disadvantage: 'Doubles

the amount of I/O required from the instance to EBS compared to RAID 0, because you're mirroring all writes

to a pair of volumes, limiting how much you can stripe.'?

A. Raid 0

B. RAID 1+0 (RAID 10)

C. Raid 1

D. Raid

Correct Answer: C

Explanation

Explanation/Reference:

http://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/raid-config.html raid 0 and 1 are the common

types. Raid 5 and 6 are not recommended because of the extended stripe. If you encounter this question on

the exam I suspect the answer options will be different.

Raid 1 Disadvantage

Does not provide a write performance improvement; requires more Amazon EC2 to Amazon EBS bandwidth

than non- RAID configurations because the data is written to multiple volumes simultaneously.

Raid 0 Disadvantage

Performance of the stripe is limited to the worst performing volume in the set. Loss of a single volume results in

a complete data loss for the array. Raid 5 and 6 notes

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