Load Balancers Flashcards

1
Q

Two types of load balancers

A

Global and regional

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2
Q

Global Load Balancers

A

HTTP(S), SSL proxy, and TCP proxy

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3
Q

Why use Global Load Balancer

A

Users and instances globally distributed, users need access to same apps and content, and want to provide access using single anycast IP addresses

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4
Q

Regional Load Balancers

A

Internal TCP/UDP, Network TCP/UDP, Internal HTTP(S)

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5
Q

Managed Instance Group Definition

A

Collection of identical VM instances controlled as a single entity using an instance template

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6
Q

Managed Instance Group - What happens on crash

A

Automatically recreates the instance

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7
Q

Managed Instance Group - Regional Vs Zonal

A

Recommend Regional in case zonal failure

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8
Q

Managed Instance Group - Type

A

Stateless - Website frontend, image processing, or batching
Stateful - Databases or legacy apps

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9
Q

Autoscaling Policies by…

A

Increase/Decrease in load:
CPU utilization
Load Balancing Capacity
Monitoring Metrics
Queue-based metrics

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