Understanding AWS Networking Concepts

What does VPC stand for in AWS?

• Virtual Public Cloud

• Virtual Private Connection

• Virtual Protected Cloud

• Virtual Private Cloud

What is the primary purpose of a security group in AWS?

• To provide backup solutions for AWS resources.

• To control inbound and outbound traffic for AWS resources.

• To manage user permissions for AWS accounts.

• To store user data for AWS applications.

How do subnets function within a VPC?

• Subnets are used to connect different VPCs together.

• Subnets are primarily for storing data in a VPC.

• Subnets function as isolated segments within a VPC, enabling organization, security, and control over network resources.

• Subnets automatically secure all resources within a VPC.

What is the difference between public and private subnets?

• Public subnets are more secure than private subnets.

• Public subnets are used for internal communication only.

• Public subnets allow internet access; private subnets do not.

• Private subnets are accessible from the internet.

How do security groups differ from NACLs?

• Security groups are stateless and subnet-level, while NACLs are stateful and instance-level.

• Security groups can only allow traffic, while NACLs can only deny traffic.

• Security groups apply to all instances in a region, while NACLs apply to individual instances.

• Security groups are stateful and instance-level, while NACLs are stateless and subnet-level.

What is the purpose of Route 53 in AWS?

• To provide cloud storage solutions

• To manage virtual machines

• To monitor application performance

• The purpose of Route 53 in AWS is to provide DNS services, including domain registration and routing user requests to resources.

How can you configure DNS settings in AWS?

• Configure DNS settings through the EC2 console only.

• Use Amazon Route 53 to create a hosted zone and configure record sets.

• Use AWS Lambda to manage DNS settings directly.

• Set up a CloudFront distribution for DNS management.

What is the default behavior of a NACL?

• The default behavior of a NACL is to allow all inbound and outbound traffic.

• The default behavior of a NACL is to block all inbound and outbound traffic.

• The default behavior of a NACL is to allow only inbound traffic.

• The default behavior of a NACL is to allow only outbound traffic.

How do you associate a subnet with a route table?

• You can associate a subnet with a route table by selecting the route table in the VPC dashboard and choosing the subnet to associate.

• Subnets are automatically associated with the nearest route table.

• You can only associate a subnet with a route table during VPC creation.

• You must delete the existing route table to associate a subnet.

What is the significance of an internet gateway in a VPC?

• An internet gateway restricts access to VPC resources from the internet.

• An internet gateway is used for internal network communication only.

• An internet gateway is essential for enabling internet access for resources in a VPC.

• An internet gateway is a type of firewall for VPC security.