EC2 - Solutions Architect Associate Level Flashcards by Jana Dohman

Q

What are the differences between a public and private IP (IPv4)?

A

A public IP is accessible over the internet

A private IP is only accessible within the private network

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Q

What is the difference between IPv4 and IPv6?

A

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Q

What is an Elastic IP?

A

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Q

What are better options than using an Elastic IP?

A

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Q

What are EC2 Placement Groups? And what are the three types?

A

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Q

What are the pros and cons of the “Cluster” EC2 Placement Group?

A

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Q

What are the pros and cons of the “Spread” EC2 Placement Group?

A

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Q

What are the pros and cons of “Partition” EC2 Placement Group?

A

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Q

What are Elastic Network Interfaces (ENI)?

A

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Q

What is a useful reason to use Elastic Network Interfaces (ENIs) in EC2?

A

You can move an ENI from one instance to another to handle failover

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Q

What is EC2 Hibernate?

A

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Q

What are the limitations of EC2 Hibernate?

A

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Q

What is an EBS (Elastic Block Store) volume?

A

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Q

How does an EBS (Elastic Block Store) volume work?

A

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Q

If you want to move an EBS volume from one AZ to another, how would you do that?

A

Create a snapshot in one AZ and then restore from snapshot in another

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Q

Can a single EC2 instance have more than on EBS volume attached to it?

A

Yes

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Q

Can a single EBS volume be attached to more than one EC2 instance?

A

No

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Q

What is the EBS “Delete on Termination” attribute?

A

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Q

What are EBS (Elastic Block Store) Snapshots?

A

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Q

What is EBS Snapshot Archive?

A

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Q

What is the Recycle Bin for EBS Snapshots?

A

Q

What is Fast Snapshot Restore in EBS Snapshots?

A

Q

What are EC2 AMIs?

A

Q

How do you use an EC2 AMI that was built in one region?

A

It can be copied to another region and then used

What is the process of building an AMI from an EC2 instance?

What is an EC2 Instance Store?

What are the different types of EBS volumes?

Which EBS volume types can be used as boot volumes?

What are the use cases for the "General Purpose SSD" EBS Volume type?

What are the use cases for the "Provisioned IOPS (PIOPS) SSD" EBS Volume type?

What are the use cases for the "Hard Disk Drives (HDD)" EBS Volume type?

If you want over 32,000 IOPS, what type of EBS Volume should you select?

EC2 Nitro with io1 or io2

What is the Multi-Attach feature of EBS?

What EBS Volume types allow the multi-attach feature?

io1 and io2

How many EC2 instances can be multi-attached to an EBS volume of the io1 or io2 type?

16 volumes

How does EBS Volume Encryption work?

What is used to encrypt volumes in EBS?

Keys from KMS (AES-256)

How do you encrypt an unencrypted EBS volume?

What is Amazon EFS (Elastic File System)?

What are the use cases and limitations of EFS (Elastic File System)?

What operating systems are compatible with EFS (Elastic File System)?

Linux-based AMIs only

What protocol does EFS (Elastic File System) use?

NFSv4.1

How do you control security in EFS (Elastic File System)?

Through security groups

What is the expected performance of EFS (Elastic File System)?

What are the two performance modes for EFS (Elastic File System)?

What are the three throughput modes for EFS (Elastic File System)?

What are the two storage tiers for EFS (Elastic File System)?

What are the two options for availability and durability in EFS (Elastic File System)?

Standard = Regional

What are key features of EBS (as opposed to EFS)?

What are key features of EFS (as opposed to EBS)?