AWS Certified Developer Associate 1 Multiple Choice Questions And Correct Answers With Rationale.
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AWS Certified Developer Associate 1 Multiple Choice Questions And Correct Answers With Rationale.
A user is running a MySQL RDS instance. The user will not use the DB for the next 3 months.
How can the user save costs?
A. Pause the RDS activities from CLI until it is required in the future
B....
AWS Certified Developer Associate 1 Multiple Choice
Questions And Correct Answers With Rationale.
A user is running a MySQL RDS instance. The user will not use the DB for the
next 3 months.
How can the user save costs?
A. Pause the RDS activities from CLI until it is required in the future
B. Stop the RDS instance
C. Create a snapshot of RDS to launch in the future and terminate the instance
now
D. Change the instance size to micro
Answer(s): C
Explanation:
The RDS instances unlike the AWS EBS backed instances cannot be stopped or
paused. The user needs to take the final snapshot, terminate the instance and launch a
new instance in the future from that snapshot.
Reference:
http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.BackingUpAndR
estoring AmazonR DSInstances.html
In DynamoDB, if you create a table and request 10 units of write capacity and 200
units of read capacity of provisioned throughput, how much would you be
charged in US East (Northern Virginia) Region?
A. $0.05 per hour
B. $0.10 per hour
C. $0.03 per hour
D. $0.15 per hour
Answer(s): A
Explanation:
To understand pricing in DynamoDB, consider the following example. If you create a
table and request 10 units of write capacity and 200 units of read capacity of
provisioned throughput, you would be charged:
$0.01 + (4 x $0.01) = $0.05 per hour
Reference:
http://aws.amazon.com/dynamodb/pricing/
You have been doing a lot of testing of your VPC Network by deliberately failing
EC2 instances to test whether instances are failing over properly. Your customer
who will be paying the AWS bill for all this asks you if he is being charged for all
these instances. You try to explain to him how the billing works on EC2 instances
to the best of your knowledge. What would be an appropriate response to give to
the customer in regards to this?
A. Billing commences when Amazon EC2 AMI instance is completely up and
billing ends as soon as the instance starts to shutdown.
B. Billing commences when Amazon EC2 initiates the boot sequence of an AMI
instance and billing ends when the instance shuts down.
,C. Billing only commences only after 1 hour of uptime and billing ends when the
instance terminates.
D. Billing commences when Amazon EC2 initiates the boot sequence of an AMI
instance and billing ends as soon as the instance starts to shutdown.
Answer(s): B
Explanation:
Billing commences when Amazon EC2 initiates the boot sequence of an AMI instance.
Billing ends when the instance shuts down, which could occur through a web services
command, by running "shutdown -h", or through instance failure.
Reference:
http://aws.amazon.com/ec2/faqs/#Billing
AWS Elastic Load Balancer supports SSL termination.
A. True. For specific availability zones only.
B. False
C. True. For specific regions only
D. True. For all regions
Answer(s): D
Explanation:
You can configure your load balancer in ELB (Elastic Load Balancing)
to use a SSL certificate in order to improve your system security. The load balancer
uses the certificate to terminate and then decrypt requests before sending them to the
back-end instances. Elastic Load Balancing uses AWS Identity and Access
Management (IAM) to upload your certificate to your load balancer.
Reference:
http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/
US_SettingUpLoadB alancerHTTPS.html
A user has launched five instances with ELB. How can the user add the sixth EC2
instance to ELB?
A. The user can add the sixth instance on the fly.
B. The user must stop the ELB and add the sixth instance.
C. The user can add the instance and change the ELB config file.
D. The ELB can only have a maximum of five instances.
Answer(s): A
Explanation:
Elastic Load Balancing automatically distributes incoming traffic
across multiple EC2 instances.
You create a load balancer and register instances with the load
balancer in one or more Availability Zones. The load balancer serves as a single point
of contact for clients. This enables you to increase the availability of your application.
You can add and remove EC2 instances from your load balancer as your needs
change, without disrupting the overall flow of information.
Reference: http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/
SvcIntro.html
An organization has 500 employees. The organization wants to set up AWS
access for each department. Which of the below mentioned options is a possible
solution?
, A. Create IAM roles based on the permission and assign users to each role
B. Create IAM users and provide individual permission to each
C. Create IAM groups based on the permission and assign IAM users to the
groups
D. It is not possible to manage more than 100 IAM users with AWS
Answer(s): C
Explanation:
An IAM group is a collection of IAM users. Groups let the user specify permissions for a
collection of users, which can make it easier to manage the permissions for those users.
Reference:
http://docs.aws.amazon.com/IAM/latest/UserGuide/Using_WorkingWithGroupsAndUser
s.html
How long can you keep your Amazon SQS messages in Amazon SQS queues?
A. From 120 secs up to 4 weeks
B. From 10 secs up to 7 days
C. From 60 secs up to 2 weeks
D. From 30 secs up to 1 week
Answer(s): C
Explanation:
The SQS message retention period is configurable and can be set anywhere from 1
minute to 2 weeks. The default is 4 days and once the message retention limit is
reached your messages will be automatically deleted. The option for longer message
retention provides greater flexibility to allow for longer intervals between message
production and consumption.
Reference:
https://aws.amazon.com/sqs/faqs/
In regard to DynamoDB, which of the following statements is correct?
A. An Item should have at least two value sets, a primary key and another
attribute.
B. An Item can have more than one attributes.
C. A primary key should be single-valued.
D. An attribute can have one or several other attributes.
Answer(s): B
Explanation:
In Amazon DynamoDB, a database is a collection of tables. A table is a collection of
items and each item is a collection of attributes.
Reference:
http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DataModel.html
Which one of the following statements is NOT an advantage of DynamoDB being
built on Solid State Drives:
A. serve high-scale request workloads
B. low request pricing
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