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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AWS associate architect exam questions

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1) What is the total volume of data and number of objects that can be stored in Amazon S3 bucket?
a) 1TB
b) 2TB
c) 5TB
d) Unlimited
Answer : a
2) You are uploading objects onto amazon S3 buckets using PUT. What is the largest object that can be uploaded onto S3 in single PUT operation?
a) 5TB
b) 5GB
c) 4MB
d) 5KB
Answer : b
3) What is the maximum size of amazon S3 objects that can be stored in S3?
a) 3TB
b) 5TB
c) 10TB
d) unlimited
Answer : b
4) You have requirement to upload object onto S3 bucket that is 4TB in size. Which capability will you make use of?
a) Multipart upload
b) Multipart PUT
c) Mutipart update
d) Multipate caching
Answer : a
5) What are the different storage classes offered by amazon S3. Choose all that apply?
a) S3 IA
b) S3 RRS
c) Amazon Glacier
d) EBS volumnes
Answer : a,b,c
6) Can I store 0byte sized file in amazon S3?
a) Yes
b) No
Answer : a
Explanation: S3 can store unlimited data with sizes ranging from 0 bytes to 5TB
7) You want to delete multiple objects from S3. How can you accomplish that?
a) Multi-Object Delete operation
b) Multi-Object Purge operation
c) Multi-Object Drop operation
d) Multi-Object Truncate operation
Answer : a
8) When using a custom VPC and placing an EC2 instance in to a public subnet, it will be automatically internet accessible and you do not need to apply an elastic IP address or ELB to the instance. Is it true or false?
a) True
b) False
Answer : b
Explanation : As part of this configuration we need to allocate an Elastic IP address and assign it to your instance after it’s launched
9) If an Amazon EBS volume is an additional partition and not the root volume we can detach it without stopping the instance. Say if this is possible?
a) Yes, although it may take some time
b) No, you will need to stop the instance
Answer : a
Explanation : Yes. An EBS volume other than root volume can be detached from live running instance. AWS CLI commands can be used for this purpose as well
10) You just started using AWS. Do you know how many regions are there in AWS?
a) 11
b) 13
c) 16
d) 20
Answer : c
Explanation : By 2018 new regions in stockholm sweden will be available. Lots more have been planned and expansion actions are underway owing to growing popularity of AWS. Keep watching for this value to change in coming days
11) I’ve saved my files in S3. How durable are they?
a) 99.999999999%
b) 99.99999999%
c) 99.9999999%
d) 99%
Answer : a
Explanation: As a easy memory trick remember 99. nine 9’s. Count it for double confirmation 🙂
12) You are making use of oracle database in AWS RDS. Your performance tuning team recommended change of parallel_processes parameter followed by instance reboot to bring down CPU spike in production environment. Currently you have multi-AZ deployment in place. Can you reboot this oracle instance now?
a) Yes
b) No. Reboot not allowed in RDS
Answer : a
Explanation : It is possible as multi-AZ will failover the instance onto standby database, update DNS as reboot with failover is allowed by multi-AZ
13) Your manager asked you to test oracle RDS high availability. Is it possible to force a failover of oracle RDS configured in multi-AZ?
a) Yes
b) No
Answer : a
14) You have access to AWS CLI and have been asked to reboot the RDS instance with forced failover. You have oracle RDS to work with now. How will you accomplish that?
a) reboot-db-instance –db-instance-identifier ORACLE_SID –force-failover
b) restart-db-instance –db-instance-identifier ORACLE_SID –force-failover
c) shutdown-db-instance –db-instance-identifier ORACLE_SID –force-failover
d) switch-db-instance –db-instance-identifier ORACLE_SID –force-failover
Answer : a
15) You have created a new security group. Is all outbound traffic allowed by default?
a) Yes
b) No
Answer : a
Explanation : By default, a security group includes an outbound rule that allows all outbound traffic
16) You have been asked to choose an instance that are designed to provide moderate baseline performance and the capability to burst to significantly higher performance as required by your workload. Which one will you choose?
a) T2 instances
b) Compute Optimized Instances
c) Memory Optimized Instances
d) Storage Optimized Instances
Answer : a
17) You are looking for an instance that offers small amount of consistent CPU resources and allow you to increase CPU capacity in short bursts when additional cycles are available. Which one will you choose?
a) T2 instances
b) Compute Optimized Instances
c) Memory Optimized Instances
d) T1 Micro Instances
Answer : d
18) Where are individualized instances provisioned?
a) Regions
b) Availability Zones
c) Globally
Answer : b
19) You have to assign your own metadata that will help you manage your Amazon EC2 instances . Which form will you make use of?
a) Tags
b) Wildcards
c) Certificates
d) Notes
Answer :a
20) To save administration headaches, Amazon recommends that you leave all security groups in web facing subnets open on port 22 to 0.0.0.0/0 CIDR. That way, you can connect where ever you are in the world. Is this correct?
a) True
b) False
Answer : b
Explanation : This will be security issue

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