An Amazon Virtual Private Cloud (VPC) can include multiple:
4. Availability Zones.
An Amazon VPC includes multiple Availability Zones. Within a VPC you can create subnets in each AZ that is available in the Region and distribute your resources across these subnets for high availability.
Reference:
Amazon Virtual Private Cloud
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A website has a global customer base and users have reported poor performance when connecting to the site.
Which AWS service will improve the customer experience by reducing latency?
3. Amazon CloudFront
Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds, all within a developer-friendly environment.
Reference:
Amazon CloudFront
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What is one method of protecting against distributed denial of service (DDoS) attacks in the AWS Cloud?
2. Configure a firewall in front of resources.
Some forms of DDoS mitigation are included automatically with AWS services. You can further improve your DDoS resilience by using an AWS architecture with specific services and by implementing additional best practices. Using a firewall with AWS resources is recommended to reduce the attack surface of your services which can mitigate some DDoS attacks.
Reference:
Mitigation techniques
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A company is deploying a new web application in a single AWS Region that will be used by users globally.
Which AWS services will assist with lowering latency and improving transfer speeds for the global users?
(Select TWO.)
2. AWS Global Accelerator
3. Amazon CloudFront
Amazon CloudFront is a content delivery network (CDN) that caches content around the world for lower latency access. AWS Global Accelerator enables access to your application by leveraging the same Edge Locations as CloudFront and routing connections across the AWS global network.
Both of these services assist with lowering latency and improving transfer speeds for users who are distributed around the world.
References:
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A company has a global user base and needs to deploy AWS services that can decrease network latency for their users. Which services may assist?
(Select TWO.)
1. Amazon CloudFront
5. AWS Global Accelerator
Amazon CloudFront is a content delivery network (CDN) that caches media assets such as files, photos, and videos in Edge locations around the world. This gets your content closer to the user base which decreases latency.
AWS Global Accelerator is a service that can direct users to the nearest AWS Region that contains and endpoint for an application. The service utilizes Edge locations to decrease latency and then forwards all traffic on the AWS global network which also decreases latency.
References:
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Which AWS service should a Cloud Practitioner use to establish a secure network connection between an on-premises network and AWS?
4. Virtual Private Network
AWS Virtual Private Network solutions establish secure connections between your on-premises networks, remote offices, client devices, and the AWS global network.
Reference:
AWS VPN
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Which Amazon EC2 tool acts as a virtual firewall to control inbound and outbound traffic to an EC2 instance?
4. Security group
A security group acts as a virtual firewall, controlling the traffic that is allowed to reach and leave the resources that it is associated with. For example, after you associate a security group with an EC2 instance, it controls the inbound and outbound traffic for the instance.
Reference:
Control traffic to your AWS resources using security groups
A company has a website that delivers static content from an Amazon S3 bucket to users from around the world.
Which AWS service will deliver the content with low latency?
2. Amazon CloudFront
Amazon CloudFront is a content delivery network (CDN) and can use an Amazon S3 bucket configured as a static website as an origin for the content is caches globally. CloudFront reduces latency for global users by serving the requested content from a local cache.
Reference:
Amazon CloudFront
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Which AWS service or VPC component allows inbound traffic from the internet to access a VPC?
2. Internet gateway
An Internet gateway is attached to a VPC and allows inbound traffic from the internet to access the VPC. It is also used as a target in route tables for outbound internet traffic.
Reference:
Enable internet access for a VPC using an internet gateway
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A company plans to connect their on-premises data center to the AWS Cloud and requires consistent bandwidth and performance.
Which AWS service should the company choose?
3. AWS Direct Connect
AWS Direct Connect is a cloud service solution that makes it easy to establish a dedicated network connection from your premises to AWS. Using AWS Direct Connect, you can establish private connectivity between AWS and your datacenter, office, or colocation environment, which in many cases can reduce your network costs, increase bandwidth throughput, and provide a more consistent network experience than Internet-based connections.
Reference:
AWS Direct Connect
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Which AWS service or feature can be used to capture information about inbound and outbound IP traffic on network interfaces in a VPC?
4. VPC Flow Logs
VPC Flow Logs is a feature that enables you to capture information about the IP traffic going to and from network interfaces in your VPC. Flow log data can be published to Amazon CloudWatch Logs or Amazon S3. After you’ve created a flow log, you can retrieve and view its data in the chosen destination.
Flow logs can help you with a number of tasks, such as:
Flow log data is collected outside of the path of your network traffic, and therefore does not affect network throughput or latency. You can create or delete flow logs without any risk of impact to network performance.
Reference:
Logging IP traffic using VPC Flow Logs
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Which AWS services are associated with Edge Locations?
(Select TWO.)
1. Amazon CloudFront
3. AWS Shield
Edge Locations are parts of the Amazon CloudFront content delivery network (CDN) that are all around the world and are used to get content closer to end-users for better performance.
AWS Shield which protects against Distributed Denial of Service (DDoS) attacks is available globally on Amazon CloudFront Edge Locations.
Reference:
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AWS Direct Connect is used by a company that wants to establish connectivity across multiple AWS Regions using VPCs.
Which AWS service or feature should the company use to meet these requirements?
1. AWS Transit Gateway
AWS Transit Gateway connects your Amazon Virtual Private Clouds (VPCs) and on-premises networks through a central hub. This simplifies your network and puts an end to complex peering relationships. It acts as a cloud router – each new connection is only made once.
As you expand globally, inter-Region peering connects AWS Transit Gateways together using the AWS global network. Your data is automatically encrypted and never travels over the public internet.
Reference:
AWS Transit Gateway
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Which service can be used to improve performance for users around the world?
2. Amazon CloudFront
Amazon CloudFront is a content delivery network (CDN) that caches content at Edge Locations around the world. This gets the content closer to users which improves performance.
Reference:
Amazon CloudFront FAQs
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An organization has an on-premises cloud and accesses their AWS Cloud over the Internet.
How can they create a private hybrid cloud connection that avoids the internet?
1. AWS Direct Connect
AWS Direct Connect is a low-latency, high-bandwidth, private connection to AWS. This can be used to create a private hybrid cloud connection between on-premises and the AWS Cloud.
Reference:
AWS Direct Connect FAQs
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Remote employees need access to managed Windows virtual desktops and applications over secure networks.
Which AWS services can the company use to meet these requirements?
(Select TWO.)
3. Amazon Workspaces
4. AWS Site-to-Site VPN
Amazon Workspaces is a fully managed desktop virtualization service for Windows and Linux that enables you to access resources from any supported device.
To secure your network you would use the AWS Site-to-Site VPN. AWS Site-to-Site VPN allows you to encrypt traffic across your networks.
References:
An IT company requires a private, encrypted channel of communication between its on-premises data center and a VPC in the AWS Cloud.
Which AWS service or feature meets this requirement?
4. AWS PrivateLink
AWS PrivateLink provides private connectivity between VPCs, AWS services, and your on-premises networks, without exposing your traffic to the public internet.
Reference:
AWS PrivateLink
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How can I deploy AWS Cloud infrastructure to multiple AWS Regions quickly, automatically, and reliably?
3. Create and use an AWS CloudFormation template.
AWS CloudFormation is an Infrastructure as Code (IaC) tool which allows users to provision infrastructure services using either JSON or YAML. With AWS CloudFormation you can easily provision resources in a different Region easily.
Reference:
AWS CloudFormation
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What are the primary benefits of using AWS Elastic Load Balancing?
(Select TWO.)
1. High availability
2. Elasticity
High availability – ELB automatically distributes traffic across multiple EC2 instances in different AZs within a region.
Elasticity – ELB is capable of handling rapid changes in network traffic patterns.
Reference:
Elastic Load Balancing
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What is an Edge location?
2. A content delivery network (CDN) endpoint for CloudFront
Edge locations are Content Delivery Network (CDN) endpoints for CloudFront. There are many more edge locations than regions.
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What is the relationship between subnets and availability zones?
1. You can create one or more subnets within each availability zone
You can create one or more subnets within each availability zone but subnets cannot span across availability zones.
Reference:
Regions, Availability Zones, and Local Zones
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How can you configure Amazon Route 53 to monitor the health and performance of your application?
2. Using Route 53 health checks
Amazon Route 53 health checks monitor the health and performance of your web applications, web servers, and other resources.
None of the other options provide a solution that can check the health and performance of an application.
Reference:
Creating Amazon Route 53 health checks
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A developer needs a way to automatically provision a collection of AWS resources. Which AWS service is primarily used for deploying infrastructure as code?
2. AWS CloudFormation
AWS CloudFormation is a service that gives developers and businesses an easy way to create a collection of related AWS resources and provision them in an orderly and predictable fashion.
AWS CloudFormation provides a common language for you to describe and provision all the infrastructure resources in your cloud environment. Think of CloudFormation as deploying infrastructure as code.
Reference:
AWS CloudFormation
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How can a company connect from their on-premises network to VPCs in multiple regions using private connections?
2. AWS Direct Connect Gateway
You can use an AWS Direct Connect gateway to connect your AWS Direct Connect connection over a private virtual interface to one or more VPCs in your account that are located in the same or different Regions
Reference:
AWS Direct Connect gateways
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