AWS Storage

There is a requirement to host a DB on an EC2 instance, and the volume should support 32000 IOPS.

Select the suitable EBS volume type

• Throughput optimized HDD

• Provisioned IOPS SSD

• General purpose SSD

• Cold HDD

A company uses EBS snapshots to backup their volumes. These snapshots need to made available in another region. Select the most optimal solution

• Create a snapshot and copy it to another region

• Copy the snapshot to an s3 bucket and then enable cross-region replication for the bucket

• Create the snapshot in another region directly

• Copy the snapshot to an ec2 instance in another region

HDDs can be used as the root volumes

• TRUE

• FALSE

Answer explanation

Only the GP SSD and the IO SSD can be used

What is false about snapshots?

• Encryption for snapshots is enabled by default

• Snapshots can be used for data recovery protection

• You don't need to stop an instance to increase the capacity of a snapshot

• Snapshots are incremental backups

An EBS volume's data is independent from an EC2 instance

• TRUE

• FALSE

Your app uploads files and each file is 2500MB and processed to extract metadata. This takes a few seconds per file. The frequency of when this happens is unpredictable.

Which option will you use?

• Use a kinesis data delivery stream to store the file and process using lambda

• Sqs queue to store the file that can be accessed by EC2 instances

• Store file in an EBS volume which can be accessed by another EC2 instance for processing

• Store file in an S3 bucket and use event notification to invoke a lambda file for processing

You can encrypt data within your bucket using server-side encryption

• TRUE

• FALSE

You have developed a new web app on AWS. Users can upload photos in S3 buckets and other users bid on these images. As this is a new project, you have no projection of traffic on the bucket. You need a storage class that can automatically optimize storage costs with changing access patterns.

Which is recommended?

• Use one-zone IA storage class to store all images

• Use S3 intelligent-tiering storage class

• Use standard IA to store all images

• Use standard storage class and use storage class analytics to identify and move objects using lifecycle policies

You have to retrieve your archives from AWS Glacier fast, within 5 minutes, and do not care how much it's going to cost you. You have to determine what lifecycle policy you need to configure.

Which type of retrieval lifecycle meets this requirement for you?

• Deep archive retrieval

• Bulk retrieval

• Expedited retrieval

• Standard retrieval

Answer explanation

Expedited is the quickest lifecycle policy. Standard retrieval gets your archives within 3 - 5 hours and Bulk retrieval gets your archives within 5 - 12 hours.

Which one of the following options cannot be used to upload archives to Amazon Glacier?

• Glacier API's

• AWS Console

• Glacier Java & .NET SDKs

• AWS S3 Lifecycle policies