Random from Practice Exams

Question 1

What is Amazon CloudWatch?

Answer 1

This service is primarily used to collect monitoring and operational data in the form of logs, metrics, and events, providing you with a unified view of AWS resources, applications, and services that run on AWS and on-premises servers.

Question 2

What is AWS Config?

Answer 2

This is just a service that enables you to assess, audit, and evaluate the configurations of your AWS resources. It doesn’t provide you with an event history of your AWS account activity, unlike CloudTrail.

Question 3

What is AWS Infrastructure Event Management?

Answer 3

this is a structured program available to Enterprise Support customers (and Business Support customers for an additional fee) that helps you plan for large-scale events such as product or application launches, infrastructure migrations, and marketing events. The type of “events” that this program track is relating to business operations such as Application Launch, Datacenter Migration or Marketing Event.

Question 4

When compared to private or virtual data centers, AWS provides _____ variable costs and ______ upfront costs.

Answer 4

lower; lower

Question 5

What is AWS Professional Services?

Answer 5

AWS Professional Services shares a collection of offerings to help you achieve specific outcomes related to enterprise cloud adoption. Each offering delivers a set of activities, best practices, and documentation reflecting our experience supporting hundreds of customers in their journey to the AWS Cloud. AWS Professional Services’ offerings use a unique methodology based on Amazon’s internal best practices to help you complete projects faster and more reliably while accounting for evolving expectations and dynamic team structures along the way.

Question 6

What is AWS Enterprise Support?

Answer 6

Provides 24x7 technical support from high-quality engineers, tools and technology to automatically manage the health of your environment, consultative architectural guidance delivered in the context of your applications and use-cases, and a designated Technical Account Manager (TAM) to coordinate access to proactive/preventative programs and AWS subject matter experts.

Question 7

What is Concierge Support?

Answer 7

This is a team composed of AWS billing and account experts that specialize in working with enterprise accounts. They will quickly and efficiently assist you with your billing and account inquiries, and work with you to implement billing and account best practices so that you can focus on running your business.

Question 8

What is an AWS Technical Account Manager (TAM)?

Answer 8

This is your designated technical point of contact who provides advocacy and guidance to help plan and build solutions using best practices, coordinate access to subject matter experts and product teams, and proactively keep your AWS environment operationally healthy.

Question 9

What are the 6 advantages of using Cloud Computing?

Answer 9

1. Trade capital expense for variable expense.
2. Benefit from massive economies of scale.
3. Stop guessing capacity.
4. Increase speed and agility.
5. Stop spending money running and maintaining data centers.
6. Go global in minutes.

Question 10

What is a NAT Gateway?

Answer 10

This enables EC2 instances in a private subnet to connect to the Internet or other AWS services, but prevent the Internet from initiating a connection with those instances.

Question 11

What is AWS Storage Gateway?

Answer 11

A hybrid cloud storage service that gives you on-premises access to virtually unlimited cloud storage in AWS.

Question 12

what are the 4 types of AWS Support plans?

Answer 12

1. Basic - free of charge and offers support for account and billing questions and service limit increases.
2. Developer - Good (experimenting or testing in AWS)
3. Business - Better (prod workloads in AWS)
4. Enterprise - Best (TAM, Training, Account Assistance)

Question 13

What is the AWS Cost and Usage Report?

Answer 13

One-stop-shop for accessing the most granular data about your AWS costs and usage. You can also load your cost and usage information into Amazon Athena, Amazon Redshift, AWS QuickSight, or a tool of your choice.

Question 14

What is AWS Cost Explorer?

Answer 14

A tool that enables you to view and analyze your costs and usage but not at a granular level like the AWS Cost and Usage report. It also does not provide a way to load your cost and usage information into Amazon Athena, Amazon Redshift, AWS QuickSight, or a tool of your choice.

Question 15

What is AWS Budgets?

Answer 15

Gives you the ability to set custom budgets that alert you when your costs or usage exceed (or are forecasted to exceed) your budgeted amount.

Question 16

Three types of Elastic Load Balancers?

Answer 16

1. Application Load Balancer: This is best suited for load balancing of HTTP and HTTPS 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. Application Load Balancers support path-based routing, host-based routing, WebSockets and support for containerized applications.
2. Network Load Balancer: This is best suited for load balancing of Transmission Control Protocol (TCP), User Datagram Protocol (UDP) and Transport Layer Security (TLS) traffic where extreme performance is required. Operating at the connection level (Layer 4), Network Load Balancer routes traffic to targets within Amazon Virtual Private Cloud (Amazon VPC) and is capable of handling millions of requests per second while maintaining ultra-low latencies. Network Load Balancer is also optimized to handle sudden and volatile traffic patterns.
3. Classic Load Balancer: This provides basic load balancing across multiple Amazon EC2 instances and operates at both the request level and connection level. Classic Load Balancer is intended for applications that were built within the EC2-Classic network.

Question 17

What is Amazon Macie?

Answer 17

A security service that uses machine learning to automatically discover, classify, and protect sensitive data in AWS.

Question 18

What is Amazon ElastiCache?

Answer 18

Amazon ElastiCache offers fully managed Redis and Memcached. Seamlessly deploy, run, and scale popular open source compatible in-memory data stores. With this service, you can build data-intensive apps or improve the performance of your existing apps by retrieving data from high throughput and low latency in-memory data stores.

The in-memory caching provided by Amazon ElastiCache can be used to significantly improve latency and throughput for many read-heavy application workloads (such as social networking, gaming, media sharing and Q&A portals) or compute-intensive workloads (such as a recommendation engine).

Question 19

What is Amazon CloudWatch?

Answer 19

Amazon CloudWatch is basically a metrics repository. An AWS service, such as Amazon EC2, puts metrics into the repository, and you retrieve statistics based on those metrics. If you put your own custom metrics into the repository, you can retrieve statistics on these metrics as well.

Question 20

What is AWS CloudFormation?

Answer 20

Turns infrastructure into code.
AWS CloudFormation provides a common language for you to describe and provision all the infrastructure resources in your cloud environment. 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.

Question 21

Five things AWS Trusted Advisor reviews?

Answer 21

1. Cost Optimization
2. Performance
3. Security
4. Fault Tolerance
5. Service Limits

Question 22

IAM Policy Simulator

Answer 22

The IAM policy simulator evaluates the policies that you choose and determines the effective permissions for each of the actions that you specify. The simulator uses the same policy evaluation engine that is used during real requests to AWS services. But the simulator differs from the live AWS environment in the following ways:

• The simulator does not make an actual AWS service request, so you can safely test requests that might make unwanted changes to your live AWS environment.
• Because the simulator does not simulate running the selected actions, it cannot report any response to the simulated request. The only result returned is whether the requested action would be allowed or denied.
• If you edit a policy inside the simulator, these changes affect only the simulator. The corresponding policy in your AWS account remains unchanged.

Question 23

What is AWS Config?

Answer 23

A service that enables you to assess, audit, and evaluate the configurations of your AWS resources.

Question 24

What is Systems Manager?

Answer 24

Provides a unified user interface so you can view operational data from multiple AWS services and allows you to automate operational tasks across your AWS resources.

Question 25

Multipart Upload API

Answer 25

Multipart upload allows you to upload a single object as a set of parts. Each part is a contiguous portion of the object's data. You can upload these object parts independently and in any order. If transmission of any part fails, you can retransmit that part without affecting other parts. After all parts of your object are uploaded, Amazon S3 assembles these parts and creates the object. In general, when your object size reaches 100 MB, you should consider using multipart uploads instead of uploading the object in a single operation.

Question 26

What is Amazon SQS?

Answer 26

Amazon Simple Queue Service (SQS) is a fully managed message queuing service that enables you to decouple and scale microservices, distributed systems, and serverless applications. SQS eliminates the complexity and overhead associated with managing and operating message-oriented middleware, and empowers developers to focus on differentiating work. Using SQS, you can send, store, and receive messages between software components at any volume, without losing messages or requiring other services to be available.

Question 27

What is an Amazon Cognito Identity Pool?

Answer 27

Amazon Cognito identity pools provide temporary AWS credentials for users who are guests (unauthenticated) and for users who have been authenticated and received a token. An identity pool is a store of user identity data specific to your account. Amazon Cognito identity pools enable you to create unique identities and assign permissions for users. Your identity pool can include: - Users in an Amazon Cognito user pool - Users who authenticate with external identity providers such as Facebook, Google, or a SAML-based identity provider - Users authenticated via your own existing authentication process With an identity pool, you can obtain temporary AWS credentials with permissions you define to directly access other AWS services or to access resources through Amazon API Gateway.

Question 28

What is Amazon Kinesis?

Answer 28

Ingest real-time data such as video, audio, application logs, website clickstreams, and IoT telemetry data for machine learning, analytics, and other applications. Amazon Kinesis enables you to process and analyze data as it arrives and respond instantly instead of having to wait until all your data is collected before the processing can begin.

Question 29

What is Amazon EMR?

Answer 29

A big data service that gives analytical teams the engines and elasticity to run Petabyte-scale analysis for a fraction of the cost of traditional on-premise clusters, using open source Apache tools.

Question 30

What is AWS X-Ray?

Answer 30

AWS X-Ray helps developers analyze and debug production, distributed applications, such as those built using a microservices architecture. With X-Ray, you can understand how your application and its underlying services are performing to identify and troubleshoot the root cause of performance issues and errors. X-Ray provides an end-to-end view of requests as they travel through your application, and shows a map of your application’s underlying components.

Question 31

5 Pillars of a Well Architected Framework?

Answer 31

1. Operational Excellence 2. Security 3. Reliability 4. Performance Efficiency 5. Cost Optimization

Question 32

What is AWS Step Functions?

Answer 32

AWS Step Functions provides serverless orchestration for modern applications. Orchestration centrally manages a workflow by breaking it into multiple steps, adding flow logic, and tracking the inputs and outputs between the steps. As your applications execute, Step Functions maintains application state, tracking exactly which workflow step your application is in, and stores an event log of data that is passed between application components. That means that if networks fail or components hang, your application can pick up right where it left off.

Question 33

What is Amazon SWF?

Answer 33

A fully-managed state tracker and task coordinator service.

Question 34

What is AWS Batch?

Answer 34

It is primarily used to efficiently run hundreds of thousands of batch computing jobs in AWS.

Question 35

What is Amazon EFS?

Answer 35

Amazon Elastic File System (Amazon EFS) provides a simple, scalable, fully managed elastic NFS file system for use with AWS Cloud services and on-premises resources. It is built to scale on-demand to petabytes without disrupting applications, growing and shrinking automatically as you add and remove files, eliminating the need to provision and manage capacity to accommodate growth. Amazon EFS offers two storage classes: the Standard storage class, and the Infrequent Access storage class (EFS IA). EFS IA provides price/performance that's cost-optimized for files not accessed every day. By simply enabling EFS Lifecycle Management on your file system, files not accessed according to the lifecycle policy you choose will be automatically and transparently moved into EFS IA.

Question 36

What is OpsWorks?

Answer 36

OpsWorks – AWS OpsWorks is a configuration management service that helps customers configure and operate applications, both on-premises and in the AWS Cloud, using Chef and Puppet.

Question 37

What is CodeDeploy?

Answer 37

CodeDeploy – AWS CodeDeploy automates code deployments to any instance, including Amazon EC2 instances and instances running on-premises. AWS CodeDeploy makes it easier to rapidly release new features, avoids downtime during application deployment, and handles the complexity of updating applications.

Question 38

What is CodePipeline?

Answer 38

Diff. from CodeDepoly = only instances/on premises CodePipeline is a fully managed continuous delivery service that helps you automate your release pipelines for fast and reliable application and infrastructure updates. CodePipeline automates the build, test, and deploy phases of your release process every time there is a code change, based on the release model you define. This enables you to rapidly and reliably deliver features and updates. You can easily integrate CodePipeline with third-party services such as GitHub or with your own custom plugin. With AWS CodePipeline, you only pay for what you use. There are no upfront fees or long-term commitments.

Question 39

Which are global services?

Answer 39

IAM, STS Route 53, CloudFront and WAF.