Arc VPN

Question 1

VPC Default

Answer 1

Creates a public subnet. Comes with No privacy isolation. .16/ IPv4, internet gateway, security group, network acl DHCP option set

Question 2

CIDR

Answer 2

Classless Interdomain Routing
Ipv6: /64 reserved for Amaon, /56 is range.
172.31.08/16 is Amazon reserved

Question 3

Custom VPC

Answer 3

Regional, explicitly designed. CIDR cannot be modified later

Question 4

Size in each AZ

Answer 4

/20 creates 4096 available Ips.

Question 5

IAM high level

Answer 5

On a high-level overview, IAM acts as an identity provider (IdP), and manages identities inside an AWS account. IAM authenticates these identities facilitating AWS account login activities to be allowed to log into the AWS account, and then authorizes those identities to access resources or deny access to resources based on the policies attached.

Question 6

True or False: Network ACLs control resources within a subnet

Answer 6

F: only the traffic flow into and out of the subnet

Question 7

What is a packet? and what contols them?

Answer 7

Messages from the internet. Controlled by ACls and are stateless

Question 8

T/F Security Groups control instance traffic

Answer 8

True. All Ec2 ports are also blocked by default. And is stateful

Question 9

What is an ELB?

Answer 9

Elastic Load Balancing (ELB) automatically distributes incoming application traffic across multiple targets, such as Amazon EC2 instances, containers, IP addresses, AWS Lambda functions, and virtual appliances.

Question 10

4 types of Load Balancers

Answer 10

1. Classic
2. Application (Layer 7)
   3.Network
   4.Gateway (layer 3) eifjcbfnnrrtuiighlegcrhtfriginbrnjbkifunrkie