Amazon Web Services (AWS) Quiz

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Questions and Answers

What is the main purpose of object versioning in Amazon S3?

To enable data encryption

To implement access controls

To track changes to an object over time (correct)

To provide additional storage capacity

What is the minimum time interval for data aggregation in Amazon CloudWatch?

One second (correct)

Three minutes

Five minutes

One minute

What is the purpose of using Lifecycle Management in S3?

To transcode videos

To archive files to Glacier after a few days (correct)

To host videos

To distribute tasks using SQS

Which reason is not a possible cause for an EC2 instance to terminate immediately after launch?

It is the required part Signup and view all the answers

How can you implement IOS IPS protection for traffic coming from the Internet?

Implement IDS/IPS agents on each Instance running in VPC Signup and view all the answers

What is the most cost-efficient architecture to transcode and deliver high-resolution MP4 videos using HLS protocol?

Elastic Transcoder to transcode original high-resolution MP4 videos to HLS Signup and view all the answers

What feature helps prevent and recover from accidental data loss in Amazon S3?

Object versioning and Multi-factor authentication Signup and view all the answers

What is the consistency model provided by Amazon S3 for PUT and DELETE operations?

Eventual consistency for overwrite PUTS and DELETE Signup and view all the answers

What is the purpose of using Auto Scaling in a video transcoding pipeline?

To adjust the number of nodes depending on the length of the SQS queue Signup and view all the answers

Which Amazon Web Service is used to host videos with lifecycle management to archive original files to Glacier after a few days?

Amazon S3 Signup and view all the answers

What is the primary function of Amazon CloudFront?

To deliver content with high availability and low latency Signup and view all the answers

How can you point the domain's zone apex towards an Elastic Load Balancer?

By using an Amazon Route 53 Alias record Signup and view all the answers

When should you choose Provisioned IOPS over Standard RDS storage?

If you have high-performance requirements Signup and view all the answers

What is a possible reason for an EC2 instance to terminate immediately after launch?

The user account has reached the maximum EC2 instance limit Signup and view all the answers

What is the purpose of using SQS in a video transcoding pipeline?

To distribute tasks in a video transcoding pipeline Signup and view all the answers

What is the benefit of using CloudFront to serve HLS transcoded videos from S3?

Reduced latency for video streaming Signup and view all the answers

Study Notes

Amazon S3 Features

Object versioning and Multi-factor authentication help prevent and recover from accidental data loss.

Amazon CloudWatch

The minimum time interval for data received and aggregated by CloudWatch is one minute.

EC2 Instance Termination

Possible reasons for an EC2 instance to terminate as soon as it is launched include: the user account has reached the maximum volume limit, the AMI is missing, the snapshot is corrupt, and the user account has reached the maximum EC2 instance limit.

Video Transcoding Pipeline

A cost-efficient architecture for video delivery without compromising high availability and quality involves using Elastic Transcoder to transcode original high-resolution MP4 videos to HLS, and then using CloudFront to serve HLS transcoded videos from S3.

Intrusion Detection Prevention Solution

Options for implementing IDS/IPS protection for traffic coming from the Internet include: configuring an instance in each subnet to switch its network interface card to promiscuous mode and analyze network traffic, and implementing a reverse proxy layer in front of web servers and configuring IDS/IPS agents on each reverse proxy server.

Amazon S3 Characteristics

Valid statements about Amazon S3 include: Amazon S3 provides read-after-write consistency for any type of PUT or DELETE, and S3 provides eventual consistency for overwrite PUTS and DELETE.

Pointing Domain Zone Apex to Elastic Load Balancer

The domain's zone apex can be pointed towards an Elastic Load Balancer by using an Amazon Route 53 Alias record.

Provisioned IOPS vs Standard RDS Storage

Provisioned IOPS should be chosen over Standard RDS storage when working with I/O-intensive workloads or applications that require high storage performance.