Technology Flashcards
A customer has an on-premises 5-gigabyte Oracle database that needs to be migrated to AWS and converted to Aurora. The customer requires minimal downtime to the database. Which service is the best option for migration and conversion?
- DataSync
- Direct Connect
- Database Migration Service
- Snowmobile
Database Migration Service
DMS supports homogeneous migrations like Oracle to Oracle and heterogeneous migrations like Oracle to Aurora, with minimal downtime.
A company would like to build an application that supports multiple languages. Which machine learning service allows the company to add localization to their application?
Rekognition
Polly
Translate
SageMaker
Translate
Translate provides language translation.
A customer would like to store secondary backup copies of on-premises data to the cloud. The customer is not concerned about an extra level of protection by geographic redundancy but requires rapid access to the data when it is needed. Which Amazon S3 storage class should be used as the lowest cost option with rapid access?
-S3 Standard-Infrequent Access
-S3 Glacier Deep Archive
-S3 Standard
-S3 One Zone-Infrequent Access
S3 One Zone-Infrequent Access
S3 One Zone-Infrequent Access is designed for customers who want a lower cost option for infrequently accessed data but do not require the multiple Availability Zone data resilience model of the S3 Standard or S3 Standard-Infrequent Access storage classes. S3 One Zone-Infrequent Access provides millisecond access when the data is needed.
Your sales operations group would like to perform monthly analyses on large amounts of sales activity. They want to be able to rank the performance of different territories, product categories, and sales channels. They will use visualization tools to generate graphical representations of the data. Which AWS service will provide the best solution for storing the sales data?
-Amazon ElastiCache
-Amazon Aurora
-Amazon Redshift
-Amazon DynamoDB
Amazon Redshift
Amazon Redshift provides the best solution for performing queries based on a predefined set of dimensions. Redshift organizes data for high performance based on user-specified distribution schemes. Amazon ElastiCache provides in-memory performance, but no data organization assistance. Amazon Aurora and Amazon DynamoDB are good solutions, but Redshift’s columnar storage gives it the edge.
Which of the following are classified as migration services?
Choose2
-AWS OpsWorks
-AWS Config
-AWS Application Discovery Service
-AWS Snowball
AWS Application Discovery Service
AWS Application Discovery Service helps you gather information about your on-premises environment and is considered a migration tool. https://aws.amazon.com/cloud-migration/
AWS Snowball
Snowball helps you migrate massive amounts of data into cloud, so it is considered a migration tool. https://aws.amazon.com/cloud-migration/
Which of the following is TRUE when considering subnets in a VPC?
-Subnets within a VPC can only communicate with each other if a NAT gateway is deployed.
-By default, subnets within a VPC cannot communicate with each other.
-Subnets within a VPC can only communicate with each other if an internet gateway is deployed.
-By default, all subnets within a VPC can communicate with each other.
By default, all subnets within a VPC can communicate with each other.
By default, all subnets within a VPC can communicate with each other, without needing any other resources or configuration. https://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Subnets.html
A solutions architect wants to design an application architecture that reduces the risk of cascading failures between components. Which design principles should be considered when planning the cloud architecture?
Choose2
a. Design the architecture to reduce inter-dependencies
b. Design the architecture to leverage inter-dependencies
c. Build monolithic systems
d. Utilize tightly coupled components
e. Utilize loosely coupled components
a. Design the architecture to reduce inter-dependencies
Architectures should be designed in a way that reduces inter-dependencies and the risk of cascading failures between components.
e. Utilize loosely coupled components
Loosely coupled components are connected but not dependent on each other. Loose coupling reduces the risk of cascading failures and can be achieved through asynchronous integration.
A customer is migrating their on-premises data center to AWS and has bandwidth constraints. Which service allows them to transport exabyte-scale datasets into AWS in a cost-effective and secure manner?
a. Snowball
b. DataSync
c. Snowmobile
d. Snowcone
Snowmobile
The Snow Family allows you to transfer large amounts of on-premises data to AWS using a physical device. Snowmobile transports multi-petabyte or exabyte-scale data.
AWS VPC is a component of which of the following overall service categories?
Compute
Database
Management Tools
Migration Services
Networking and Content Delivery
Networking and Content Delivery
Amazon Virtual Private Cloud (Amazon VPC) gives you full control over your virtual networking environment, including resource placement, connectivity, and security. VPC can be found under the Networking and Content Delivery category of services in the AWS Management Console.
A company is using CloudTrail to simplify operational analysis and troubleshooting. When tracking user activity, which content fields does CloudTrail track when a user accesses the AWS Management Console?
choose 2
a. Region
b. Resource tag
c. Availability Zone
d. Username
e. Previous state of the affected resource
a. Region
CloudTrail tracks the AWS Region that the request was made to, such as us-east-1.
b. Username
CloudTrail allows you to track the username.
What is the maximum number of objects you can store in S3 per AWS account?
a. 65,536
b. 262,144
c. Unlimited
d. 1,048,576
Unlimited
You can store an essentially unlimited number of objects in S3 - either in a single bucket or across multiple in your account. https://docs.aws.amazon.com/AmazonS3/latest/dev/BucketRestrictions.html
You are trying out AWS on a trial basis and need to deploy an application without having to configure servers. Which AWS service can you use?
choose 1
a. Auto Scaling
b. Elastic Beanstalk
c. ECS
d. CloudFormation
Elastic Beanstalk
Elastic Beanstalk allows you to deploy your web applications and web services to AWS. https://aws.amazon.com/elasticbeanstalk/
What benefits can CloudFront bring to your e-commerce website?
choose 3
a. Advanced analytics into customer journeys
b. Protection against network and application layer attacks via WAF
c. Lower latency for customers of your e-commerce website
d. Increased application availability
e. A scalable managed database that integrates seamlessly with Lambda and EC2
B. Protection against network and application layer attacks via WAF
CloudFront provides protection with AWS WAF and AWS Shield.
C. Lower latency for customers of your e-commerce website
CloudFront provides the ability to cache both static and dynamic content around the world, ensuring quick response times for customers when retrieving cached website content.
D. Increased application availability
CloudFront provides the ability to cache both static and dynamic content around the world, ensuring quick response times for customers when retrieving cached website content.
You have a MySQL database that you want to migrate to the cloud, and you need it to be significantly faster there. You are looking for a speed increase up to 5 times the current performance. Which AWS offering could you use?
choose 1
a. Amazon RDS MySQL
b. Amazon Aurora
c. DynamoDB
d. ElastiCache
Amazon Aurora
Aurora is a relational database compatible with MySQL and PostgreSQL that was created by AWS. https://aws.amazon.com/rds/aurora/
IS NOT
Amazon RDS MySQL
Although migrating a MySQL database to Amazon RDS MySQL is typical, you will not achieve the up to 5 times speed increase. https://aws.amazon.com/rds/mysql/
A recent audit has dictated that a company begin keeping a log of AWS Management Console actions and API calls. Which AWS service can help with this?
a. CloudFormation
b. AWS Inspector
c. CloudWatch
d. AWS CloudTrail
AWS CloudTrail
CloudTrail tracks user activity and API calls within your account.
Is NOT
CloudWatch
why
CloudWatch is a collection of services that help you monitor and observe your cloud resources
Which of the following are load balancer types offered by AWS?
choose 3
a. Application
b. Service
c. Web
d. Original
e. Network
f. Database
g. Classic
a. Application
Application is a valid load balancer type AWS offers.
b. Network
Network is a valid load balancer type AWS offers.
c. Classic
Classic is a valid load balancer type AWS offers.
You want to use an AWS service that enables you to notify select Tech Support members in your company (via email) of any cloud-related issues to attend to. Which of the following services will accomplish that?
a. Simple Email Service
b. Simple Queue Service
c. Simple Workflow Service
d. Simple Notification Service
Simple Notification Service
With Simple Notification Service, or Amazon SNS, you can create and appropriately name a topic to which you publish your messages. Then, the select Tech Support members can subscribe to that topic to receive these messages as email notifications.
Which of the following can be specified as an origin when creating a CloudFront distribution?
chose 3
a. An S3 bucket
b. An elastic load balancer
c. An RDS instance
d. A domain name
a. An S3 bucket
b. An elastic load balancer
d. A domain name
Which of the following database migrations are classified as heterogeneous?
choose 2
a. MySQL to Amazon Aurora MySQL
b. Oracle to Amazon Aurora PostgreSQL
c. Microsoft SQL Server to Amazon Aurora PostgreSQL
d. Oracle to Amazon RDS for Oracle
b. Oracle to Amazon Aurora PostgreSQL
In heterogeneous database migrations, the source and target databases tend to be different in schema structure, data type, and database code. Oracle and Amazon Aurora PostgreSQL are not the same.
c. Microsoft SQL Server to Amazon Aurora PostgreSQL
In heterogeneous database migrations, the source and target databases tend to be different in schema structure, data type, and database code. SQL Server and PostgreSQL are not the same.
Which type of Elastic Load Balancer is recommended for flexible application management and supports HTTP and HTTPS/2 traffic?
choose 1
a. Application Load Balancer
b. Network Load Balancer
c. Classic Load Balancer
d. None. The application needs to be upgraded.
a. Application Load Balancer
Application Load Balancer is best suited for load balancing of HTTP and HTTPS (HTTPS/2) traffic and provides advanced request routing targeted at the delivery of modern application architectures, including microservices and containers. Operating at the individual request level (Layer 7), Application Load Balancer routes traffic to targets within Amazon Virtual Private Cloud (Amazon VPC) based on the content of the request.
A company with a business-critical application needs to ensure business continuity and that they will not be impacted by capacity restraints in a given Region. How can the company ensure this?
choose 3
a. Convertible Reserved Instance (RI) with a capacity reservation
b. On-demand capacity reservation
c. Savings Plan with a capacity reservation
d. Spot instance with a capacity reservation
e. Standard Reserved Instance (RI) with a capacity reservation
a. Convertible Reserved Instance (RI) with a capacity reservation
A Reserved Instance is a reservation of resources and capacity for either 1 or 3 years. A capacity reservation offers assurance that the customer will be given preference if there is ever a capacity constraint in a Region.
b. On-demand capacity reservation
On-Demand Capacity Reservations enable you to reserve compute capacity for your Amazon EC2 instances for any duration.
e. Standard Reserved Instance (RI) with a capacity reservation
A Reserved Instance is a reservation of resources and capacity for either 1 or 3 years. A capacity reservation offers assurance that the customer will be given preference if there is ever a capacity constraint in a Region.
With which AWS service, coupled with EC2, can you implement elasticity by adding and removing instances as needed?
choose 1
a. AWS Systems Manager
b. CloudFormation
c. Elastic Beanstalk
d. Auto Scaling
d. Auto Scaling
Auto Scaling monitors your applications and automatically adjusts capacity to maintain steady, predictable performance.
IS NOT
Elastic Beanstalk
Elastic Beanstalk allows you to deploy your web applications and web services to AWS.
An organization needs to run a MySQL relational database on AWS. They plan to hire their own database administrators to manage their databases, including taking backups, using replication, and clustering. Which option provides the customer the control and flexibility needed?
choose 1
a. Use the Amazon Relational Database Service (RDS) to launch the MySQL database.
b. Use Systems Manager to install the MySQL database directly to on-premises servers.
c. Install the MySQL database directly on an EC2 instance.
d. Open a case with AWS Support to have them assist the database administrators with the installation of the MySQL database.
c. Install the MySQL database directly on an EC2 instance.
Installing the database directly to EC2 gives the customer complete control over the database and its management.
A colleague tells you about a service that uses machine learning to discover and protect sensitive data stored in S3 buckets. Which AWS service does this?
choose 1
a. Inspector
b. SageMaker
c. Rekognition
d. Macie
d. Macie
Macie helps you discover and protect sensitive data.
IS NOT—–
Inspector
Inspector works with EC2 instances to uncover and report vulnerabilities.
A company needs a scalable data warehouse to consolidate multiple data sources for reporting, where real-time transaction processing (insert, update, and delete) is not required. Which solution best supports this requirement?
choose 1
a. Relational Database Service (RDS)
b. Redshift
c. Data Pipeline
d. Elastic MapReduce (EMR)
b. Redshift
Redshift is a scalable data warehouse solution that supports querying, reporting, analytics, and business intelligence. It can be used when you need to consolidate multiple data sources for reporting and don’t require real-time transaction processing (insert, update, and delete).
IS NOT —-
c. Data Pipeline
Data Pipeline helps you move data between compute and storage services running either on AWS or on-premises.
Which of the following is AWS’ data warehousing service?
a. Redshift
b. EMR
c. Snowball
d. S3 Big Data
a. Redshift
Redshift is AWS’ data warehousing service.
IS NOT—-
Snowball
Snowball is a physical appliance used to transfer data into or out of AWS.
A company is planning for a one-time sale of 75% off all products on its website. They expect to see a short-term spike on the sale day. Which EC2 instance type should the company use to meet its requirements and maximize flexibility?
choose 1
a. Standard Reserved Instance (RI)
b. On-Demand
c. Convertible Reserved Instance (RI)
d. EC2 Spot
b. On-Demand
On-Demand is good for applications that have unpredictable workloads that can’t be interrupted.
A developer has noticed several SQL injection attacks against a web application running on an EC2 spot instance. What is the best way to prevent this type of attack?
choose 1
a. Web Application Firewall (WAF)
b. Shield Advanced
c. Private subnet
d. Shield Standard
a. Web Application Firewall (WAF)
WAF helps protect your web applications against common web attacks like SQL injection attacks and cross-site scripting.
A company has developed a popular online multiplayer gaming application. How can the company enhance its players’ online experience and improve overall application availability and reduce in-game latency?
choose 1
a. Global Accelerator
b. Route 53
c. CloudTrail
d. CloudFront
a. Global Accelerator
Global Accelerator can improve the experience by routing player traffic along with the private AWS global network to the fastest instance of your application. Player traffic is not negatively impacted by internet congestion and local outages.
IS NOT — D
CloudFront
While CloudFront can improve the global availability of static and dynamic content, CloudFront caches content and isn’t the best option for real-time gameplay.
An organization needs to run a MySQL relational database on AWS. They plan to hire their own database administrators to manage their databases, including taking backups, using replication, and clustering. Which option provides the customer the control and flexibility needed?
a. se the Amazon Relational Database Service (RDS) to launch the MySQL database.
b. Open a case with AWS Support to have them assist the database administrators with the installation of the MySQL database.
c. Use Systems Manager to install the MySQL database directly to on-premises servers.
d. Install the MySQL database directly on an EC2 instance.
d. nstall the MySQL database directly on an EC2 instance.
Installing the database directly to EC2 gives the customer complete control over the database and its management.
IS NOT—-A
Use the Amazon Relational Database Service (RDS) to launch the MySQL database.
RDS does provide a lot of value, like automated backups and software patching, but it does not provide the complete control and flexibility needed by the customer.
A company with a business-critical application needs to ensure business continuity and that they will not be impacted by capacity restraints in a given Region. How can the company ensure this?
choose 3
a. Convertible Reserved Instance (RI) with a capacity reservation
b. On-demand capacity reservation
c. Savings Plan with a capacity reservation
d. Standard Reserved Instance (RI) with a capacity reservation
e. Spot instance with a capacity reservation
a. Convertible Reserved Instance (RI) with a capacity reservation
A Reserved Instance is a reservation of resources and capacity for either 1 or 3 years. A capacity reservation offers assurance that the customer will be given preference if there is ever a capacity constraint in a Region.
b. On-demand capacity reservation
On-Demand Capacity Reservations enable you to reserve compute capacity for your Amazon EC2 instances for any duration.
d. Standard Reserved Instance (RI) with a capacity reservation
A Reserved Instance is a reservation of resources and capacity for either 1 or 3 years. A capacity reservation offers assurance that the customer will be given preference if there is ever a capacity constraint in a Region.
When analyzing application performance, a developer realizes the queries to the database are taking a long time. What can the developer implement to store common queries and improve performance?
a. ElastiCache
b. Elastic Block Store (EBS)
c. Simple Queue Service (SQS)
d. CloudFront
a. ElastiCache
ElastiCache helps you alleviate database load for data that is accessed often. ElastiCache is a great way to cache common queries.
A software company is looking for a tool to automate their deployments from end to end. Which AWS service can provide this continuous delivery functionality?
choose 1
a. CodeDeploy
b. CodePipeline
c. CodeCommit
d. CodeBuild
b. CodePipeline
CodePipeline automates the software release process.
IS NOT A -
CodeDeploy
CodeDeploy manages the deployment of code to compute services in the cloud or on-premises
A company is looking to lower its total cost of ownership (TCO) by moving the file system used for its business-critical, Linux-based applications to a managed file system in the cloud. Which service meets their needs?
choose 1
a. Storage Gateway
b. Elastic File System (EFS)
c. FSx
d. Elastic Block Store (EBS)
b. Elastic File System (EFS)
EFS is a fully managed file system that provides elastic file storage for a broad range of Linux-based applications.
IS NOT D—-
Elastic Block Store (EBS)
EBS is a storage device (called a volume) that can be attached to (or removed from) your instance.
A company wants to deploy applications entirely on a serverless platform. Which AWS service can they use to build their applications without worrying about managing servers?
choose 1
a. EC2
b. AWS Lambda
c. CloudFormation
d. ElastiCache
b. AWS Lambda
AWS Lambda lets you run code without provisioning or managing servers. You pay only for the compute time you consume.
IS NOT c—-
CloudFormation
AWS CloudFormation allows you to use programming languages or a simple text file to model and provision, in an automated and secure manner, all the resources needed for your applications across all Regions and accounts. It is not what your team is looking for in this instance.
Scientists would like to analyze terabytes of scientific data from a rover that landed on Mars. Which service will help them find trends and understand the vast amount of data using Hadoop?
choose 1
a. Data Pipeline
b. Elastic MapReduce (EMR)
c. Kinesis
d. SageMaker
b. Elastic MapReduce (EMR)
EMR helps you process large amounts of data using big data frameworks like Hadoop.
IS NOT C —-
Kinesis
Kinesis allows you to analyze data and video streams in real time.
A development team wants to gain full observability into the health of their applications and instances in order to provide the best service level to users of their applications. Which services can help them monitor the health of their applications and instances?
choose 3
a. Elastic Beanstalk
b. Route 53
c. Simple Notification Service (SNS)
d. CloudTrail
e. Elastic Load Balancing
a. Elastic Beanstalk
Elastic Beanstalk monitors application health via a health dashboard.
b. Route 53
Route 53 can be used to configure DNS health checks to route traffic to healthy endpoints or to monitor the health of your applications.
e. Elastic Load Balancing
Load balancers monitor the health of EC2 instances and route the traffic to only instances that are in a healthy state.
IS NOT D—-
CloudTrail
While CloudTrail tracks user activity and API calls within your account, it does not monitor the health of applications and instances.
You have infrequently accessed data in S3 buckets that you want to transfer to Glacier. What can you use in AWS to do this?
choose 1
a. Database Migration Service
b. Bucket policy
c. S3 Lifecycle policy
d. Cross-origin resource sharing (CORS)
c. S3 Lifecycle policy
You can add rules in an S3 Lifecycle configuration to tell Amazon S3 to transition objects to another Amazon S3 storage class. For example: When you know objects are infrequently accessed, you might transition them to the S3 Standard-IA storage class. You might want to archive objects that you don’t need to access in real time to the S3 Glacier storage class.
IS NOT A—–
Database Migration Service
DMS helps you migrate databases to or within AWS.