Sec. 12: Leveraging the AWS Global Infrastructure

Which Route 53 Routing Policies would you use to route traffic to multiple resources in proportions that you specify?

• Simple Routing Policy

• Weighted Routing Policy

• Latency Routing Policy

• Failover Routing Policy

Answer explanation

Weighted Routing Policy is used to route traffic to multiple resources in proportions that you specify.

Which service is optimized to deploy ultra-low latency applications to 5G devices?

• WaveLength

• Route 53

• CloudFront

Answer explanation

AWS Wavelength is an AWS Infrastructure offering optimized for mobile edge computing applications. Wavelength combines the high bandwidth and ultra-low latency of 5G networks with AWS compute and storage services to enable developers to innovate and build a whole new class of applications.

You need to enable fast, easy, and secure transfers of files over long distances on S3. Which service would you use?

• AWS Global Accelerator

• S3 Transfer Acceleration

• S3 Cross-Region Replication

Answer explanation

Amazon S3 Transfer Acceleration enables fast, easy, and secure transfers of files over long distances between your client and an S3 bucket. Transfer Acceleration takes advantage of Amazon CloudFront’s globally distributed edge locations. As the data arrives at an edge location, data is routed to Amazon S3 over an optimized network path.

What does AWS CloudFront use to improve read performance?

• DDoS Protection

• S3 Buckets Fast-Read

• Caching Content in Edge Locations

• Caching Content in Edge Regions

Answer explanation

CloudFront uses Edge Location to cache content, and therefore bring more of your content closer to your viewers to improve read performance.

Which service can be used to run AWS infrastructure and services on-premises for a hybrid cloud architecture?

• CloudFront

• Outposts

• DMS

• Storage Gateway

Answer explanation

AWS Outposts bring native AWS services, infrastructure, and operating models to virtually any data center, co-location space, or on-premises facility.

Which of the following statements is NOT a reason for a global application?

• Decreased Latency

• Disaster Recovery

• Scale elastically on demand

• Attack protection

Answer explanation

A global application is not specifically used to scale elastically on demand. You can use Auto Scaling Groups for example if you want to elastically scale based on demand.

Which features are available with Route 53?

• Health Checks, Auto Scaling, Routing Policy, DNS

• Load Balancing, DNS, Domain Registration, Monitoring

• Domain Registration, DNS, Health Checks, DDoS Protection

• Domain Registration, DNS, Health Checks, Routing Policy

Answer explanation

Route 53 features are (non exhaustive list): Domain Registration, DNS, Health Checks, Routing Policy

With which services does CloudFront integrate to protect against web attacks?

• WAF & Shield

• WAF & IAM

• IAM & Shield

• Security Groups & WAF

Answer explanation

You can use AWS WAF web access control lists (web ACLs) to help minimize the effects of a distributed denial of service (DDoS) attack. For additional protection against DDoS attacks, AWS also provides AWS Shield Standard and AWS Shield Advanced.