EC2 - Solutions Architect Associate Level Flashcards by Jana Dohman | Brainscape

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

Q

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

A

Q

What is an EC2 Instance Store?

A

Q

What are the different types of EBS volumes?

A

Q

Which EBS volume types can be used as boot volumes?

A

Q

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

A

Q

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

A

Q

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

A

Q

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

A

EC2 Nitro with io1 or io2

Q

What is the Multi-Attach feature of EBS?

A

Q

What EBS Volume types allow the multi-attach feature?

A

io1 and io2

Q

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

A

16 volumes

Q

How does EBS Volume Encryption work?

A

Q

What is used to encrypt volumes in EBS?

A

Keys from KMS (AES-256)

Q

How do you encrypt an unencrypted EBS volume?

A

Q

What is Amazon EFS (Elastic File System)?

A

Q

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

A

Q

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

A

Linux-based AMIs only

Q

What protocol does EFS (Elastic File System) use?

A

NFSv4.1

Q

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

A

Through security groups

Q

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

A

Q

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

A

Q

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

A

Q

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

A

Q

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

A

Standard = Regional

Q

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

A

Q

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

A