EC2_3 Flashcards by Rich Alberth | Brainscape

Q

Processor State Control

IP address for Instance Metadata and user data?

A

169.254.169.254

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Processor State Control

Cool use of meta-data instance “ami-launch-index”?

A

Create cluster, use this number so each instance can decide on it’s role. 0 == I’ll be the master, 1 == I’ll be the backup master, 2+ == I’ll be a worker.

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Processor State Control

What is User Data? When is it used?

A

Strictly at instance launch (not every start-up) and never again.

How well did you know this?

1

Not at all

2

3

4

5

Perfectly