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Virtual Private Cloud (VPC)

Description: This quiz is designed to assess your knowledge of Virtual Private Cloud (VPC), a fundamental component of cloud networking. Test your understanding of VPC concepts, features, and configurations.
Number of Questions: 15
Created by:
Tags: vpc cloud networking virtualization
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What is the primary purpose of a Virtual Private Cloud (VPC) in cloud computing?

  1. To provide a dedicated and isolated network environment within a public cloud

  2. To manage virtual machines and resources in a cloud environment

  3. To connect on-premises networks to cloud resources

  4. To provide a secure channel for data transfer between cloud services

Show answer
Correct Option: A
Explanation:

A VPC is a private network created within a public cloud, allowing users to have a dedicated and isolated network segment for their cloud resources.

Which of the following is a key benefit of using a VPC?

  1. Improved security and isolation of cloud resources

  2. Reduced latency and improved performance for cloud applications

  3. Simplified management and control of network resources

  4. All of the above

Show answer
Correct Option: D
Explanation:

VPCs offer multiple benefits, including improved security, reduced latency, simplified management, and better control over network resources.

What is the default VPC routing table called?

  1. Main Routing Table

  2. Default Routing Table

  3. Global Routing Table

  4. Public Routing Table

Show answer
Correct Option: B
Explanation:

The default VPC routing table is automatically created and named as 'Default Routing Table'.

What is the purpose of a subnet within a VPC?

  1. To divide a VPC into smaller, logically isolated network segments

  2. To assign IP addresses to cloud resources within a VPC

  3. To control access to specific resources within a VPC

  4. To connect multiple VPCs together

Show answer
Correct Option: A
Explanation:

Subnets are used to divide a VPC into smaller, logically isolated network segments, allowing for more granular network control and management.

Which of the following is a valid subnet mask for a subnet with a CIDR block of 10.0.0.0/24?

  1. 255.255.255.0

  2. 255.255.255.128

  3. 255.255.255.192

  4. 255.255.255.224

Show answer
Correct Option: A
Explanation:

For a CIDR block of 10.0.0.0/24, the subnet mask should be 255.255.255.0, which represents a network prefix of 24 bits.

What is the purpose of a VPC peering connection?

  1. To connect two VPCs within the same region

  2. To connect two VPCs in different regions

  3. To connect a VPC to an on-premises network

  4. To connect a VPC to a public cloud service

Show answer
Correct Option: A
Explanation:

VPC peering allows you to connect two VPCs within the same region, enabling communication between resources in those VPCs.

What is a Network Address Translation (NAT) gateway in a VPC?

  1. A gateway that allows instances in a private subnet to access the internet

  2. A gateway that allows instances in a public subnet to access a private subnet

  3. A gateway that allows instances in a VPC to communicate with each other

  4. A gateway that allows instances in a VPC to communicate with on-premises networks

Show answer
Correct Option: A
Explanation:

A NAT gateway enables instances in a private subnet to access the internet by translating their private IP addresses to public IP addresses.

What is the purpose of a security group in a VPC?

  1. To control inbound and outbound traffic to instances in a VPC

  2. To assign IP addresses to instances in a VPC

  3. To create subnets within a VPC

  4. To connect a VPC to an on-premises network

Show answer
Correct Option: A
Explanation:

Security groups are used to control inbound and outbound traffic to instances in a VPC, allowing you to define rules for allowing or denying specific types of traffic.

What is the difference between a public subnet and a private subnet in a VPC?

  1. Public subnets have direct access to the internet, while private subnets do not

  2. Public subnets can only be used for web servers, while private subnets can be used for any type of instance

  3. Public subnets are always assigned a larger CIDR block than private subnets

  4. Public subnets are more expensive than private subnets

Show answer
Correct Option: A
Explanation:

Public subnets have direct access to the internet, allowing instances in those subnets to communicate with external resources, while private subnets do not have direct internet access.

Which of the following is a valid IP address range for a public subnet in a VPC?

  1. 10.0.0.0/24

  2. 172.16.0.0/24

  3. 192.168.0.0/24

  4. 203.0.113.0/24

Show answer
Correct Option: D
Explanation:

Public subnets must be assigned a public IP address range, which is typically provided by the cloud provider. The given IP address range (203.0.113.0/24) is a valid public IP address range.

What is the purpose of a VPC endpoint?

  1. To provide a private connection between a VPC and a specific service within the cloud provider's network

  2. To connect a VPC to an on-premises network

  3. To allow instances in a VPC to communicate with each other

  4. To control inbound and outbound traffic to instances in a VPC

Show answer
Correct Option: A
Explanation:

VPC endpoints allow you to establish a private connection between a VPC and a specific service within the cloud provider's network, such as a database service or a storage service.

Which of the following is a valid CIDR block for a VPC?

  1. 10.0.0.0/24

  2. 172.16.0.0/24

  3. 192.168.0.0/24

  4. 224.0.0.0/24

Show answer
Correct Option: A
Explanation:

Valid CIDR blocks for VPCs are typically within the private IP address ranges, such as 10.0.0.0/24, 172.16.0.0/24, and 192.168.0.0/24.

What is the maximum number of VPCs that can be created in a single region?

  1. 5

  2. 10

  3. 20

  4. Unlimited

Show answer
Correct Option: D
Explanation:

The number of VPCs that can be created in a single region is typically unlimited, allowing you to create as many VPCs as needed for your cloud networking requirements.

Which of the following is a valid resource type that can be attached to a VPC?

  1. Instances

  2. Subnets

  3. Security groups

  4. All of the above

Show answer
Correct Option: D
Explanation:

All of the mentioned resources (instances, subnets, and security groups) can be attached to a VPC, allowing you to build and manage your cloud network infrastructure.

What is the purpose of a VPC flow log?

  1. To monitor and capture network traffic flowing in and out of a VPC

  2. To control inbound and outbound traffic to instances in a VPC

  3. To create subnets within a VPC

  4. To connect a VPC to an on-premises network

Show answer
Correct Option: A
Explanation:

VPC flow logs allow you to monitor and capture network traffic flowing in and out of a VPC, providing valuable insights into network activity and security.

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