AWS certified solutions architect associate practice tests

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1) Your application runs in a production environment that has 4 identical web servers that makes use of auto scaling. All of these web servers make use of same public subnet and belong to the same security group. All of these web servers are seated behind same elastic load balancer. Now, you add 5th instance into the same subnet, same security group. This does not have internet connectivity. Why is that?
a) This instance has not been assigned elastic IP address
b) Route table has not been updated
c) NAT is not configured properly
d) none of the above
Answer : a
2) Amazon’s Elasticache uses two caching engines. What are those two engines?
a) Redis & Memcached
b) Memcached and RDS
c) Reddit & Memcrush
d) Redis & Memory
Answer : a
3) Which AWS service is used for collating large amounts of data streamed from multiple sources?
a) Cloudwatch
b) Kinesis
c) SNS
d) Cloud Capture
Answer : b
4) An AWS computing service is specifically designed to process large data sets, Which one is that?
a) Cloudfront
b) EC2
c) Elasticache
d) Elastic MapReduce aka EMR
Answer : d
5) Do you know about about Amazon’s Glacier service? Which of the following best describes the use cases for Glacier?
a) Infrequently accessed data & data archives
b) Hosting active databases
c) Replicating Files across multiple availability zones and regions
d) Frequently Accessed Data
Answer : a
6) When you have a heavy OLTP environment with autoscaling in place is there a way to limit the number instances launched within a given timeslot?
a) Yes with autoscaling cooldowns
b) Nope
Answer : a
Explanation : The Auto Scaling cooldown period is a configurable setting for your Auto Scaling group that helps to ensure that Auto Scaling doesn’t launch or terminate additional instances before the previous scaling activity takes effect
7) You have web application that must be able to call the S3 API in order to be able to function. Where should you store your API credentials while maintaining the maximum level of security?
a) For safety purpose create a role in IAM and assign this role to an EC2 instance while creating it first
b) Save API credentials in a public github repository
c) Get the API credentials using the EC2 instances User Data
d) None of the above
Answer : a
8) Which of the AWS services can receive data emitted from Kinesis stream? Choose all that apply
a) RDS
b) Lambda
c) Elasticsearch
d) Redshift
e) DynamoDB
f) S3
Answer : c,d,e,f
9) Are Kinesis streams appropriate for persistent storage of your streaming data?
a) Yes
b) No
Answer : b
10) How long can a kinesis stream data be stored by default?
a) 10 hours
b) 24 hours
c) 48 hours
d) 72 hours
Answer : b
11) What is the maximum number of days that a kinesis stream data can be stored?
a) 7 days
b) 14 days
c) 21 days
d) 30 days
Answer : a
12) What allows emitting of data from streams to various AWS services?
a) Lambda connector library
b) Kinesis Connector Library
c) S3 connector library
d) SNS connector library
Answer : b
13) Can you add a local secondary index to a DynamoDB table after it has been created?
a) Yes
b) No
Answer : b
14) What is the capacity of a shard in a Kinesis stream in terms of data read-rate for data output?
a) 2 MB/s
b) 4 MB/s
c) 6 MB/s
d) 8 MB/s
Answer: a
15) Is it true that Route53 is Amazon DNS Service?
a) Yes
b) No
Answer : a
16) Does Route53 support MX the mail Records?
a) Yes
b) No
c) Only in Us-East Virginia region
d) In all regions except virginia
Answer : a
17) What is the reason behind Route53 naming convention?
a) The DNS Port is on Port 53 and Route53 is a DNS Service
b) It was invented in 1853
c) None of the above
Answer : a
18) SQS can have duplicate messages in queue. True or false
a) True
b) False
Answer: a
Explanation : Simple queue service offers default type of queue standard that allows duplicate messages
19) What is the maximum number of SWF domains allowed in a typical AWS account?
a) 50
b) 100
c) 150
d) 200
Answer : 100
Explanation : Amazon simple workflow service offers an option to maintain total of 100 registered domains that can be both registered and deprecated
20) You have configured custom VPC. How many internet gateways can I be attached to custom VPC ?
a) 1
b) 2
c) 3
d) 4
Answer : a
21) Is it true that amazon SQS keeps track of all tasks and events in an application?
a) True
b) False
Answer: b
Explanation : We must implement our own application level tracking while making use of SQS
22) Is it true that amazon SWF keeps track of all tasks and events in an application?
a) True
b) False
Answer : a
Explanation : It is true that this is tracked by AWS simple workflow service
23) Who is a owner in AWS permission model?
a) User identity
b) email address used to create AWS account
c) Phone number of user
d) Both user identity and email address used to create AWS account
Answer : d
24) What is the VisibilityTimeout value of an SQS message in a FIFO queue?
a) 1 hour
b) 12 hours
c) 24 hours
d) 48 hours
Answer : b
25) Is it true that visibility timeout controls how long a message is invisible in the queue while it is being worked on by a processing instance?
a) True
b) False
Answer : a
26) Is it true that visibility timeout controls how long the message can remain in the queue?
a) True
b) False
Answer : b
27) You have been asked to make use of AWS tool that is fault-tolerant and cost-effective while implementing AWS architectures. Which tool will you use?
a) autoscaling
b) autisharding
c) autodeploy
d) none of the above
Answer: a
28) You project makes use of DynamoDB. Do you need to provision this across multiple availability zones?
a) Yes
b) No
Answer : b
29) Your project makes use of S3 buckets as storage container. Do you need to provision this across multiple availability zones?
a) Yes
b) No
Answer : b
30) You are making use of SQS as your queuing solution. Do you need to provision this across multiple availability zones?
a) Yes
b) No
Answer : b
31) Which among these AWS services have automated already built in fault tolerant fashion and dont need provision across multiple zones?
a) S3
b) SWF
c) SQS
d) Dynamodb
d) RDS
Answer: a,c,d
32) Is organizational unit a component of IAM?
a) yes
b) No
Answer : b
33) Do you know which language is made use of while creating IAM policy documents?
a) javascript
b) JSON
c) BSON
d) python
Answer : b
34) Is power user same as root user?
a) Yes
b) No
Answer : b
Explanation : root is the superuser with supreme privileges

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