AWS Certified Advanced Networking Specialty (ANS-C01)

The AWS Certified Advanced Networking Specialty (ANS-C01) were last updated on today.

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Topic 1 - Exam A

Question #6 Topic 1

In AWS Direct Connect, to provide for failover, AWS recommends that you request and configure two dedicated connections to AWS. These connections can terminate on one or two routers in your network. You can do this while __________________ with AWS Direct Connect step.

A creating a Virtual Interface
B configuring redundant connections
C completing the cross-connect
D verifying your Virtual Interface

Suggested Answer: B
NOTE: In AWS Direct Connect, to provide for failover, AWS recommends that you request and configure two dedicated connections to AWS. These connections can terminate on one or two routers in your network. You can do this in Configure Redundant Connections with AWS Direct Connect step. Reference: http://docs.aws.amazon.com/directconnect/latest/UserGuide/getstarted.html#RedundantConnections

Question #7 Topic 1

You work for a company that has several instances running with automatically assigned public IPs. You performed an upgrade that required you to restart the instances from the console and your DNS records don't work anymore. What happened?

A Your network interfaces need to be reinitialized
B You need to restart Route 53
C Restarting too many instances at once overloads the system
D The instances changed their public IP addresses on restart

Suggested Answer: D
NOTE: Automatically assigned public IPs change on stop or termination of an instance.

Question #8 Topic 1

In Amazon CloudFront, if you need to quickly remove objects from a distribution, you can:

A delete the objects from cache.
B invalidate the objects.
C remove your Amazon S3 bucket.
D delete your distribution and recreate it.

Suggested Answer: B
NOTE: In Amazon CloudFront, if you need to quickly remove objects from a distribution, you can invalidate them. Reference: http://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/AddRemoveReplaceObjects.html

Question #9 Topic 1

Which of the following types of contents cannot serve over HTTP or HTTPS in Amazon CloudFront?

A Apple HTTP Live Streaming
B Static and dynamic download content
C Adobe Flash multimedia content
D CloudFront RTMP distribution

Suggested Answer: C
NOTE: In Amazon CloudFront, you can use web distributions to serve the following content over HTTP or HTTPS: Static and dynamic download content, for example, .html, .css, .php, and image files, using HTTP or HTTPS. Multimedia content on demand using progressive download and Apple HTTP Live Streaming (HLS). A live event, such as a meeting, conference, or concert, in real time. You can't serve Adobe Flash multimedia content over HTTP or HTTPS. Reference: http://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/distribution-overview.html

Question #10 Topic 1

In Amazon CloudFront, which of the following is true of Smooth Streaming?

A It is a Microsoft format for streaming of media files.
B It is a CloudFront format for streaming of media files in RTMP distribution.
C It is the Adobe format for streaming of media files.
D It is a CloudFront format for streaming of media files in web distribution.

Suggested Answer: A
NOTE: In the context of Amazon CloudFront, you can use CloudFront for on-demand streaming of media files that you've transcoded into the Microsoft Smooth Streaming format. To distribute Smooth Streaming content on demand, you have two options: As the origin for your distribution, specify a web server that can stream files that have been transcoded into Microsoft Smooth Streaming format. Enable Smooth Streaming in a CloudFront distribution. Smooth Streaming is a property of cache behaviors, which means that you can use one distribution to distribute Smooth Streaming media files as well as other content. Reference: http://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/on-demand-streaming-smooth.html