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AWS SAA Exam | 105 Questions & 100% Correct Verified Answers| A+ Grade
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AWS SAA Exam | 105 Questions & 100% CorrectVerified Answers| A+ Grade
A small startup company has begun using AWS for all of its IT infrastructure. The company
has two AWS Solutions Architects, and they are very proficient with AWS deployments. They
want to choose a deployment service that best meets the given requirements. Those
requirements include version control of their infrastructure documentation and granular
control of all of the services to be deployed. Which AWS service would best meet these
requirements?
CloudFormation
CloudFormation is infrastructure as code, and the CloudFormation feature of templates allows
this infrastructure as code to be version controlled. While it can be argued that both OpsWorks
and Elastic Beanstalk provide some granular control of services, this is not the main feature of
either.
An online media company has created an application which provides analytical data to its
clients. The application is hosted on EC2 instances in an Auto Scaling Group. You have been
brought on as a consultant and add an Application Load Balancer to front the Auto Scaling
Group and distribute the load between the instances. The VPC which houses this architecture
is running IPv4 and IPv6. The last thing you need to do to complete the configuration is point
the domain name to the Application Load Balancer. Using Route 53, which record type at the
zone apex will you use to point the DNS name of the Application Load Balancer? Choose two.
Alias with an AAAA type record set.
Alias with a type "AAAA" record set and Alias with a type "A" record set are correct. To route
domain traffic to an ELB, use Amazon Route 53 to create an alias record that points to your load
balancer.
,Alias with an A type record set.
Alias with a type "AAAA" record set and Alias with a type "A" record set are correct. To route
domain traffic to an ELB load balancer, use Amazon Route 53 to create an alias record that
points to your load balancer. An alias record is a Route 53 extension to DNS.
A new startup is considering the advantages of using DynamoDB versus a traditional
relational database in AWS RDS. The NoSQL nature of DynamoDB presents a small learning
curve to the team members who all have experience with traditional databases. The
company will have multiple databases, and the decision will be made on a case-by-case basis.
Which of the following use cases would favor DynamoDB? Select two.
Managing web session data
Storing metadata for S3 objects
You work for an online retailer where any downtime at all can cause a significant loss of
revenue. You have architected your application to be deployed on an Auto Scaling Group of
EC2 instances behind a load balancer. You have configured and deployed these resources
using a CloudFormation template. The Auto Scaling Group is configured with default settings
and a simple CPU utilization scaling policy. You have also set up multiple Availability Zones
for high availability. The load balancer does health checks against an HTML file generated by
script. When you begin performing load testing on your application and notice in CloudWatch
that the load balancer is not sending traffic to one of your EC2 instances. What could be the
problem?
The EC2 instance has failed the load balancer health check.
The load balancer will route the incoming requests only to the healthy instances. The EC2
instance may have passed status checks and be considered healthy to the Auto Scaling group,
but the ELB may not use it if the ELB health check has not been met. The ELB health check has a
default of 30 seconds between checks, and a default of 3 checks before making a decision.
,A travel company has deployed a website which serves travel updates to users all over the
world. The traffic this database serves is very read heavy and can have some latency issues at
certain times of the year. What can you do to alleviate these latency issues?
Add read replicas
Amazon RDS Read Replicas provide enhanced performance and durability for RDS database
(DB) instances. They can be within an Availability Zone, Cross-AZ, or Cross-Region, and make it
easy to elastically scale out beyond the capacity constraints of a single DB instance for read-
heavy database workloads. You can create one or more replicas of a given source DB Instance
and serve high-volume application read traffic from multiple copies of your data, thereby
increasing aggregate read throughput.
A team of architects is designing a new AWS environment for a company which wants to
migrate to the Cloud. The architects are considering the use of EC2 instances with instance
store volumes. The architects realize that the data on the instance store volumes are
ephemeral. Which action will not cause the data to be deleted on an instance store volume?
Reboot
Correct. Some Amazon Elastic Compute Cloud (Amazon EC2) instance types come with a form
of directly attached, block-device storage known as the instance store. The instance store is
ideal for temporary storage, because the data stored in instance store volumes is not persistent
through instance stops, terminations, or hardware failures.
A software gaming company has produced an online racing game that uses CloudFront for
fast delivery to worldwide users. The game also uses DynamoDB for storing in-game and
historical user data. The DynamoDB table has a preconfigured read and write capacity. Users
have been reporting slowdown issues, and an analysis has revealed the DynamoDB table has
begun throttling during peak traffic times. What step can you take to improve game
performance?
, Adjust your auto scaling thresholds to scale more aggressively.
Amazon DynamoDB auto scaling uses the AWS Application Auto Scaling service to dynamically
adjust provisioned throughput capacity on your behalf in response to actual traffic patterns.
This enables a table or a global secondary index to increase its provisioned read and write
capacity to handle sudden increases in traffic without throttling. When the workload decreases,
Application Auto Scaling decreases the throughput so you don't pay for unused provisioned
capacity.
You have been assigned to create an architecture which uses load balancers to direct traffic
to an Auto Scaling Group of EC2 instances across multiple Availability Zones. The application
to be deployed on these instances is a life insurance application which requires path-based
and host-based routing. Which type of load balancer will you need to use?
Application Load Balancer
Only the Application Load Balancer can support path-based and host-based routing. Using an
Application Load Balancer instead of a Classic Load Balancer has the following benefits:
A large, big-box hardware chain is setting up a new inventory management system. They
have developed a system using IoT sensors which captures the removal of items from the
store shelves in near real-time and want to use this information to update their inventory
system. The company wants to analyze this data in the hopes of being ahead of demand and
properly managing logistics and delivery of in-demand items.
Which AWS service can be used to capture this data as close to real-time as possible, while
being able to both transform and load the streaming data into Amazon S3 or ElasticSearch?
Amazon Kinesis Data Firehose
Amazon Kinesis Data Firehose is the easiest way to reliably load streaming data into data lakes,
data stores, and analytics tools. It can capture, transform, and load streaming data into Amazon
S3, Amazon Redshift, Amazon Elasticsearch Service, and Splunk, enabling near-real-time
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