Top AWS VPC Interview Questions (2021) | CodeUsingJava
















Most frequently asked AWS VPC Interview Questions


  1. What is the meaning of VPC?
  2. What are the components of AWS VPC?
  3. What are the services used with VPC?
  4. What is a NAT Device?
  5. How to build a custom VPC?
  6. What SQL ypes does Azure Data Factory support?
  7. What Is Azure Databricks?
  8. Name three basic types of cloud services and the AWS products that are built based on them?
  9. Difference between stateful and stateless filtering?
  10. Can we monitor the network traffic in your VPC?
  11. Why do we need private subnet in VPC?
  12. What is auto-scaling?
  13. How can we connect VPC to the Internet?
  14. What is Data Pipeline in AWS VPC?


What is the meaning of VPC?

Amazon Virtual Private Cloud(VPC) is a space within the amazon cloud that enables us to launch AWS resources.It lets us to furnish a locically left out department of Amazon Web Services.VPC is fully customizable, we can create subnets, set up root tables, configure network gateways, setup network access control lists, choose IP address range, and many more in a Virtual Private Cloud.

What are the components of AWS VPC?

  • Virtual Private Cloud (VPC)
  • Internet Gateway
  • NAT Gateway
  • Hardware VPN
  • Virtual Private Gateway
  • Peering Connection
  • VPC Endpoint

What are the services used with VPC?

Amazon EC2
Amazon Route 53
Amazon WorkSpaces
Auto Scaling
Elastic Load Balancing
AWS Data Pipeline
Elastic Beanstalk
Amazon Elastic Cache
Amazon EMR
Many more


What is a NAT Device?

Nat device will enable instance in private sybnet to trigger outbound traffic to other AWS services while hindering inbound traffic initiated on the internet.

How to build a custom VPC?

Create a Virtual Private Cloud
create Subnets
Create an Internet Gateway
Attach new Gateway to your VPC
Create a new Route Table
Add the gateway as a route to the new route table
Add subnet to the route table's subnet association
Create web server for public subnet and a database server for the private subnet
Create a new security group for the NAT
Add HTTP and HTTPS inbound rules that let in traffic from the private subnets IP
Create a NAT for public subnet
Create an elastic IP
Associate this IP to the NAT
Disable source checks for the NAT
Add NAT to the initial VPC route table as a route.

What SQL ypes does Azure Data Factory support?

char
nchar
varchar
nvarchar
integer
int
bit
boolean
smallint
tinyint
bigint
long
text
date
datetime
datetime2
Many more.

What Is Azure Databricks?

Databricks is based analytics platform optimized for Azure.It is designed in collaboration with Apache Spark, Azure Databricks combines the best of Databricks and Azure to help customers accelerate innovation with one-click setup.

Name three basic types of cloud services and the AWS products that are built based on them?

Computing
Storage
Networking


Difference between stateful and stateless filtering?

Stateful filtering
It can autoatically allow the reply to the request to be returned to the originating computer.
Stateless filtering
Helps in examining the sources and destination IP address and the destination port, ignoring whether the traffic is a new request or a reply to a request.


Can we monitor the network traffic in your VPC?

Yes.
We can use the Amazon VPC Flow Logs feature in monitoring the network traffic in your VPC.

Why do we need private subnet in VPC?

Subnets are a range of IP adresses in our VPC.It helps in launching the resources of AWS into our desired subnet.

What is auto-scaling?

It is the fucntion that allows us to provision and launch new instances is there is a demand.It also allows us to automatically increase or decrease resource capacity in relation to the demand.

How can we connect VPC to the Internet?

Internet Gateway enables Amazon EC2 instances in the VPC to directly access the Internet.

What is Data Pipeline in AWS VPC?

Data Pipeline help users to integrate data speed across multiple AWS services and analyze from single location.By using Data Pipeline all the data can be accessed from the source with resulting will be efficiently transferred to the respective AWS services.