Compute Engine

Question 1

Different Machine Families for Different Workloads

Answer 1

1. General Purpose (E2, N2, N2D, N1) : Best price-performance ratio
2. Memory Optimized (M2, M1): Ultra high memory workloads
3. Compute Optimized (C2): Compute intensive workloads

Question 2

How do we reduce the number of steps in creating an VM instance and setting up a HTTP Server?How do we reduce the number of steps in creating an VM instance
and setting up a HTTP Server?

Answer 2

1. Startup script
2. Instance Template
3. Custom Image

Question 3

Type of Images:

Answer 3

1. Public Images
2. Custom Images

Question 4

Instances are

Answer 4

Zonal (Run in a specific zone (in a specific region))

Question 5

How do you get a constant External IP address for a VM instance?

Answer 5

Static IP Addresses

Question 6

Install OS patches or software when an VM instance is launched.

Answer 6

Startup script

Question 7

Installing OS patches and software at launch of VM instances increases boot up time

Answer 7

Reducing Launch Time with Custom Image

Question 8

Preemptible VM : Short-lived cheaper (upto 80%) compute instances

Answer 8

–> Can be stopped by GCP any time (preempted) within 24 hours
–> Instances get 30 second warning (to save anything they want to save)

Question 9

What do you do when predefined VM options are NOT appropriate for your workload?

Answer 9

Create a machine type customized to your needs (a Custom Machine Type)

Question 10

Images are

Answer 10

Global (You can provide access to other projects - if needed)

Question 11

Instance templates are

Answer 11

Global (Unless you use zonal resources in your templates)

Question 12

Why are labels used in VM?

Answer 12

Labels are used to indicate environment, team, business unit etc

Question 13

Hardening an Image

Answer 13

Customize images to your
corporate security standards