Cloud Load Balancing

Question 1

Cloud Load Balancing

Answer 1

Distributes user traffic across instances of an application in single region or multiple regions

Question 2

Network Layer:

Answer 2

IP (Internet Protocol): Transfer bytes. Unreliable.

Question 3

Transport Layer:

Answer 3

–> TCP (Transmission Control): Reliability > Performance
-> TLS (Transport Layer Security): Secure TCP
-> UDP (User Datagram Protocol): Performance > Reliability

Question 4

Application Layer:

Answer 4

-> HTTP(Hypertext Transfer Protocol): Stateless Request Response Cycle
-> HTTPS: Secure HTTP
-> SMTP: Email Transfer Protocol

Question 5

Frontend -

Answer 5

Specify an IP address, port and protocol. This IP address is the frontend IP for your clients requests.
–> For SSL, a certificate must also be assigned

Question 5

Client to Load Balancer: Over internet

Answer 5

HTTPS recommended

Question 5

Backend -

Answer 5

Group of endpoints that receive traffic from a Google Cloud load balancer (example: instance groups)

Question 6

Load Balancer to VM instance: Through Google internal network

Answer 6

HTTP is ok. HTTPS is preferred.

Question 7

Client to Load Balancer:

Answer 7

HTTPS/TLS

Question 8

Load Balancer to VM instance:

Answer 8

HTTP/TCP