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AWS Cloud Practitioner Practice Exam > AWS Boy Practice Exam Three (Missed Questions) > Flashcards

AWS Boy Practice Exam Three (Missed Questions) Flashcards

1
Q

Which of the following statements regarding Amazon Athena are accurate? Select TWO.

Amazon Athena resources are allocated in accordance to processing and memory requirements prior to deployment.

Amazon Athena uses a variety of query languages including SQL, LDAP, JPQL as well as CQL.

Amazon Athena is compatible with data formats such as CSV, JSON, ORC, AVRO and Parquet

Amazon Athena queries data directly from Amazon S3 and there are no additional data storage commitments beyond the object storage.

Amazon Athena is not suitable for complex analysis such as large joins, window functions and arrays.

A

Amazon Athena is compatible with data formats such as CSV, JSON, ORC, AVRO and Parquet
Amazon Athena queries data directly from Amazon S3 and there are no additional data storage commitments beyond the object storage.

Amazon Athena a serverless query service that does not need to build databases on dedicated Elastic Block Store (EBS) volumes, instead, it builds tables from data read directly from Amazon S3 buckets. Amazon Athena does not store any of the data. The service is compatible with the regular data formats that include CSV, JSON, ORC, AVRO and Parquet.

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2
Q

A website for an international sports governing body would like to serve its content to viewers from different parts of the world in their vernacular language. Which is the most suitable service that will allow different language versions of the same website to be served, according to where in the world the browser is viewing from.

Content Delivery Network (CDN)
Amazon Lightsail
Amazon Route 53
Amazon CloudFront

A

Amazon Route 53

In Amazon Route 53, the geolocation routing policy allows for different resources to serve content based on the origin of the request. This in turn makes it possible in the scenario for different versions of the website to be served.

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3
Q

When working on the costing for on-demand EC2 instances , which of the following are attributes which determine the costing of the EC2 Instance. Choose 3 answers from the options given below

Instance Type
Region
AMI Type
Edge location

A

Instance Type
Region
AMI Type

If you see the below snapshot from the EC2 on-demand pricing page, you can see the different components that make up the pricing

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4
Q

Which of the following is not a disaster recovery deployment technique.

Multi-Site
Single Site
Warm standby
Pilot light

A

Single Site

The below snapshot from the AWS documentation shows the different disaster recovery techniques

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5
Q

A company is deploying a three-tier, highly available web application to AWS. Which service provides durable storage for static content while utilizing lower Overall CPU resources for the web tier?

Amazon EC2 instance store
Amazon EBS volume
Amazon RDS instance
Amazon S3

A

Amazon S3

Amazon S3 is the default storage service that should be considered for companies. If provides durable storage for all static content.

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6
Q

Which of the following options would entice a company to use AWS over an on-premises data center? Choose 2 answers from the options given below

Ability to use resources on demand
Having access to Free and Unlimited Storage
Having access to Unlimited Physical servers
Having a highly available infrastructure

A

Ability to use resources on demand

Having a highly available infrastructure

The entire advantage of the AWS Cloud or any cloud system is the ability to have a highly available infrastructure and to use resources on demand

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7
Q

You are exploring which AWS service will help you in the processing of a large number of data sets. Choose the correct answer from the given list.

EMR
Storage gateway
S3
Glacier

A

EMR (AWS Elastic MapReduce)

Amazon EMR helps you analyze and process vast amounts of data by distributing the computational work across a cluster of virtual servers running in the AWS Cloud. The cluster is managed using an open-source framework called Hadoop. Amazon EMR lets you focus on crunching or analyzing your data without having to worry about the time-consuming setup, management, and tuning of Hadoop clusters or the compute capacity they rely on.

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8
Q

What is the service provided by AWS that allows developers to easily deploy and manage applications on the cloud? Please choose an answer from the options below.

CloudFormation
Opswork
Elastic Beanstalk
Container service

A

Elastic Beanstalk

AWS Elastic Beanstalk makes it even easier for developers to quickly deploy and manage applications in the AWS Cloud. Developers simply upload their application, and Elastic Beanstalk automatically handles the deployment details of capacity provisioning, load balancing, auto-scaling, and application health monitoring.

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9
Q

Which of the following statements are FALSE when it comes to AWS DataSync? (Choose TWO)

It is an agentless data transfer service
Can work only over AWS Direct:Connect
Can copy data between NFS servers, SMB file shares, Amazon S3 buckets, and Amazon EFS file systems.
A fully managed data transfer service with built-in retry mechanism
It is integrated with AWS CloudWatch

A

It is an agentless data transfer service
Can work only over AWS Direct:Connect

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10
Q

Which of the following is the amount of storage that can be stored in the Simple Storage service?

Virtually unlimited storage
1 PB
5 TB
1 TB

A

Virtually unlimited storage

Amazon S3 provides a simple web service interface that you can use to store and retrieve any amount of data, at any time, from anywhere on the web

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11
Q

Which of the following is a template that contains the software configuration to launch an ec2 instance?

EC2 Snapshot
EBS Snapshot
EBS Volumes
AMI

A

AMI

  • The AWS Documentation mentions the following*
  • An Amazon Machine Image (AMI) provides the information required to launch an instance, which is a virtual server in the cloud. You specify an AMI when you launch an instance, and you can launch as many instances from the AMI as you need. You can also launch instances from as many different AMIs as you need.*
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12
Q

Which of the following security features is associated with a Subnet in a VPC to protect against Incoming traffic requests.

D. Network ACL
B. Subnet Groups
C. Security Groups
A. AWS Inspector

A

Network ACL

A network access control list (ACL) is an optional layer of security for your VPC that acts as a firewall for controlling traffic in and out of one or more subnets. You might set up network ACLs with rules similar to your security groups in order to add an additional layer of security to your VPC.

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13
Q

Which statements regarding VPC Peering is accurate? Select TWO.

A. Two VPCs in different AWS Regions and under separate AWS Accounts can share traffic between each other.
C. In VPC Peering, it is possible for traffic from one VPC to traverse through a transit VPC in order to reach a third VPC.
D. Traffic between VPC peers in different AWS Regions is not encrypted by default.
B. In order for VPC Peering to work each VPC should have a public subnet.
E. VPC Peering can be used to replicate data to geographically distinct locations for fault-tolerance, disaster recovery and redundancy

A

. Two VPCs in different AWS Regions and under separate AWS Accounts can share traffic between each other.

VPC Peering can be used to replicate data to geographically distinct locations for fault-tolerance, disaster recovery and redundancy

VPC Peering can be established between VPCs in different AWS Regions and in separate AWS Accounts. The logical networks still use the same common AWS backbone network infrastructure to communicate. By utilizing this infrastructure, VPC Peering makes it possible to securely store mission-critical data to geographically distinct locations for fault-tolerance, disaster recovery and redundancy.

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14
Q

Which of the following AWS managed database service provides processing power that is up to 5X faster than a traditional MySQL database.

D. DynamoDB
A. MariaDB
B. Aurora
C. PostgreSQL

A

Aurora

Amazon Aurora (Aurora) is a fully managed, MySQL- and PostgreSQL-compatible, relational database engine. It combines the speed and reliability of high-end commercial databases with the simplicity and cost-effectiveness of open-source databases. It delivers up to five times the throughput of MySQL and up to three times the throughput of PostgreSQL without requiring changes to most of your existing applications.

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15
Q

A company is deploying a new two-tier web application in AWS. The company wants to store their most frequently used data so that the response time for the application is improved. Which AWS service provides the solution for the company’s requirements?

D. Amazon DynamoDB
A. MySQL Installed on two Amazon EC2 Instances in a single Availability Zone
C. Amazon ElastiCache
B. Amazon RDS for MySQL with Multi-AZ

A

Amazon ElastiCache

Amazon ElastiCache is a web service that makes it easy to deploy, operate, and scale an in-memory data store or cache in the cloud. The service improves the performance of web applications by allowing you to retrieve information from fast, managed, in-memory data stores, instead of relying entirely on slower disk-based databases

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16
Q

You want to create a stream processing solution to process and query real-time streaming data using a SQL-based solution. You are looking for the simplest approach available that AWS provides.
What AWS service should you use?

A. Amazon Kinesis Data Streams
C. Amazon Kinesis Client Library
D. Amazon Kinesis Data Firehose
B. Amazon Kinesis Data Analytics

A

Amazon Kinesis Data Analytics

AWS documentation (FAQ section) says “If you want a fully managed solution and you want to use SQL to process the data from your data stream, you should use Kinesis Data Analytics”

17
Q

What are characteristics of Amazon S3?
Choose 2 answers from the options given below.

B. S3 allows you to store virtually unlimited amounts of data
A. S3 allows you to store objects of virtually unlimited size.
D. Objects are directly accessible via a URL.
C. S3 should be used to host a relational database.

A

S3 allows you to store virtually unlimited amounts of data

Objects are directly accessible via a URL.

Each object does have a limitation in S3, but you can store virtually unlimited amounts of data. Also each object gets a directly accessible URL

18
Q

A user would like to be notified when their usage bill on any AWS resource surpasses a specified amount. Which combination of AWS services can be used to achieve this?

D. AWS Billing & Cost Management and Amazon CloudWatch
C. AWS Cost Explorer and Amazon Simple Notification Service (SNS)
B. AWS Lambda and AWS CloudTrial
A. AWS Budgets and Amazon Simple Email Service (SES)

A

AWS Billing & Cost Management and Amazon CloudWatch

To configure a billing alarm, the user will utilise the AWS Billing and Cost Management service in conjunction with Amazon CloudWatch to set the parameters of the alarm.

19
Q

Each time a drone flight simulator crashes, it produces a plethora of event logs which the research and development team would like to query and derive utility from. Since this rarely occurs, what cost-effective services can they use to extract their target information?

D. Configure the simulator to write logs into an Amazon S3 bucket then use Extract, Transform, Load (ETL) processes to build an Amazon Aurora database instance for querying.
C. Use Extract, Transform, Load (ETL) processes into MySQL RDS for querying.
A. Use Extract, Transform, Load (ETL) processes into an Amazon DynamoDB instance for querying.
B. Upload event logs into an Amazon S3 bucket then use Amazon Athena for querying.

A

B. Upload event logs into an Amazon S3 bucket then use Amazon Athena for querying.
Correct Answer – B
Amazon Athena a serverless query service that uses Amazon S3 as its data source. The service is ideal for the scenario due to the ad hoc nature of the query task, thus building a database is unnecessary. The service does not need to build databases on dedicated Elastic Block Store (EBS) volumes, instead, it builds tables from data read directly from Amazon S3 bucket.

20
Q

There is a requirement to host a set of servers in the Cloud for a short period of 3 months. Which of the following types of instances should be chosen to be cost-effective.

A. Spot Instances
C. No Upfront costs Reserved
B. On-Demand
D. Partial Upfront costs Reserved

A

On-Demand

Since the requirement is just for 3 months, then the best cost effective option is to use On-Demand Instances.

21
Q

You have a distributed application that periodically processes large volumes of data across multiple Amazon EC2 Instances. The application is designed to recover gracefully from Amazon EC2 instance failures. You are required to accomplish this task in the most cost-effective way.
Which of the following will meet your requirements?

C. Dedicated instances
A. Spot Instances
D. On-Demand instances
B. Reserved instances

A

Spot Instances

When you think of cost effectiveness, you can either have to choose Spot or Reserved instances. Now when you have a regular processing job, the best is to use spot instances and since your application is designed recover gracefully from Amazon EC2 instance failures, then even if you lose the Spot instance , there is no issue because your application can recover.

22
Q

Amazon Macie uses artificial intelligence (AI) and machine learning (ML) in which three main functional components on users’ data?

A. Discover, Classify, Protect
D. Detect, Discover, Alert
B. Observe, Design, Alert
C. Optimize, Alert, Secure

A

Discover, Classify, Protect

Amazon Macie is a fully managed security service that uses AI and ML to continuously observe data access activity in order to alert the user of any anomalies if they arise. Alerts may include unauthorized access, data leaks and any out-of-the-norm patterns. The major functions are to discover, classify and protect the user data.

23
Q

An administrator is running a large deployment of AWS resources that is spread across several AWS Regions. They would like to persistently keep track of configuration changes on all the resources as well as maintain a configuration inventory. What is the best service they can use?

C. AWS Backup
B. Stacks and Templates
A. AWS CloudFormation
D. AWS Config

A

D. AWS Config
Correct Answer – D
AWS Config will meet the requirements of the scenario, the service allows the administrator to monitor and record configuration changes on AWS resources in their account. The service also allows the administrator to create a resource configuration inventory.

24
Q

Which of the following can be used to manage identities in AWS.

D. AWS
C. AWS Trusted Advisor
A. AWS Config
B. AWS IAM

A

B. AWS IAM

The AWS Documentation mentions the following
AWS Identity and Access Management (IAM) is a web service that helps you securely control access to AWS resources. You use IAM to control who is authenticated (signed in) and authorized (has permissions) to use resources.

25
Q

Whilst working on a collaborative project, an administrator would like to record the initial configuration and the several authorized changes that engineers make to the route table of a VPC. What is the best method to achieve this?

B. Use of VPC Flow Logs
C. Use of AWS CloudTrail
D. Use of an AWS Lambda function that is triggered to save a log file to an S3 bucket each time configuration changes are made.
A. Use of AWS Config

A

A. Use of AWS Config
Correct Answer – A
AWS Config can be used to keep track of configuration changes on AWS resources, keeping multiple date-stamped versions in a reviewable history. This makes it the best method to meet the scenario

26
Q

You have 2 accounts in your AWS account. One for the Dev and the other for QA. All are part of consolidated billing. The master account has purchased 3 reserved instances. The Dev department is currently using 2 reserved instances. The QA team is planning on using 3 EC2 instance launch types. What is the pricing tier of the instances that can be used by the QA Team?

D. Three Reserved and no on-demand
A. No Reserved and 3 on-demand
B. One Reserved and 2 on-demand
C. Two Reserved and 1 on-demand

A

One Reserved and 2 on-demand

Since all are a part of consolidating billing, the pricing of reserved instances can be shared by All. And since 2 are already used by the Dev team , another one can be used by the QA team. The rest of the instances can be on-demand instances.

27
Q

You have a mission-critical application which must be globally available at all times. If this is the case, which of the below deployment mechanisms would you employ

B. Deployment to multiple Availability Zones
D. Deployment to multiple Regions
C. Deployment to multiple Data Centers
A. Deployment to multiple edge locations

A

Deployment to multiple Regions

Regions represent different geographic locations and is bets to host your application across multiple regions for disaster recovery

28
Q

Which of the following statements about the Total Cost of Ownership (TCO) calculator is accurate.

A. The TCO calculator will generate an estimated usage report and anticipated billing when using on-premise infrastructure
C. The TCO calculator will make suggestions and recommendations on appropriate resource types based on the user’s input values and settings.
D. The TCO calculator can generate a detailed report on redundant resources on on-premise infrastructure and recommend operationally efficient best-practices.
B. The TCO calculator will make suggestions and recommendations on appropriate resource types based on operational best-practices.

A

The TCO calculator will make suggestions and recommendations on appropriate resource types based on the user’s input values and settings.

The Total Cost of Ownership (TCO) calculator generates the potential cost savings when running resources on AWS infrastructure rather than on-premises. The calculator uses the user input values and parameters to generate the estimations.

29
Q

Which of the following are benefits of the AWS’s Relational Database Service (RDS)? Choose the 2 correct answers from the options below

A. Automated patches and backups
B. DB owner can resize the capacity accordingly
C. It allows you to store unstructured data
D. It allows you to store NoSQL data

A

Automated patches and backups
B. DB owner can resize the capacity accordingly

Amazon Relational Database Service (Amazon RDS) makes it easy to set up, operate, and scale a relational database in the cloud. It provides cost-efficient and resizable capacity while automating time-consuming administration tasks such as hardware provisioning, database setup, patching and backups. It frees you to focus on your applications so you can give them the fast performance, high availability, security and compatibility they need.

30
Q

Which statement about the Shared Responsibility Model is accurate?

A. The user is responsible for AWS physical infrastructure when moving data from their on-premise data center using AWS Snowball
B. The hypervisor and its security is the users’ responsibility
C. Amazon is responsible for running operating system updates, patching of application software and its maintenance.
D. Compliance with industry bodies and regulatory authorities is the users’ responsibility

A

The user is responsible for AWS physical infrastructure when moving data from their on-premise data center using AWS Snowball

When moving large amounts of data AWS Snowball allows users to book the service and have the appliance shipped out to their location. A local (offline) transfer data onto the storage appliance owned by Amazon is then effected. During the time the appliance is in the users’ possession, they are responsible for it.

31
Q

A company does not want to manage their database. Which of the following services is a fully managed NoSQL database provided by AWS.

A. AWS RDS
D. Elastic Map Reduce
B. DynamoDB
C. Oracle RDS

A

DynamoDB

DynamoDB is a fully managed NoSQL offering provided by AWS. It is now available in most regions for users to consume.

32
Q

Which statement about Amazon Macie is accurate? Select TWO.

C. Amazon Macie provides comprehensive security for user data by preventing unauthorized access to it.
B. Amazon Macie cannot read user data but can formulate access patterns on it.
D. Through observing Amazon CloudTrail logs, Amazon Macie is able to detect if a permitted user is accessing data that they seldom do.
E. Amazon Macie is a fully managed service that does not need permission to access user data and resources
A. Using artificial intelligence (AI), Amazon Macie can be able to alert the administrator of sensitive information in a document residing in an S3 bucket.

A

Through observing Amazon CloudTrail logs, Amazon Macie is able to detect if a permitted user is accessing data that they seldom do.

Using artificial intelligence (AI), Amazon Macie can be able to alert the administrator of sensitive information in a document residing in an S3 bucket.

Using artificial intelligence (AI), machine learning (ML), natural language understanding (NLU), Amazon Macie has the capability to read documents and sift through user data for sensitive or vulnerable information that can be exploited. Information such as credit/debit card numbers, access keys in documents will trigger an alert. Amazon Macie integrates with Amazon CloudTrail to detect unusual access patterns to user data and alerts the administrator.

33
Q

An e-commerce web application running on AWS on EC2 is experiencing bad performance in browsing and searching use cases when heavy load order use-cases are running at the same time. The application monitors highlights a bottleneck in the web tier.
You decide to re-engineer the application code decoupling the web tier from the orders heavy workloads. What AWS service can support the application change?

D. Amazon Kinesis Streams
B. AWS Elastic Load Balancing
C. AWS SQS
A. AWS Auto Scaling

A

AWS SQS

AWS SQS implements messaging that is a typical integration pattern to decouple application components. AWS documentation mention it “Amazon SQS offers a reliable, highly-scalable hosted queue for storing messages as they travel between applications or microservices. It moves data between distributed application components and helps you decouple these components. “

AWS Cloud Practitioner Practice Exam (13 decks)

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