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Cloud Networking Fundamentals

Description: This quiz covers the fundamentals of cloud networking, including concepts such as virtual networks, subnets, routing, and security.
Number of Questions: 14
Created by:
Tags: cloud networking virtual networks subnets routing security
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What is a virtual network (VNet) in cloud networking?

  1. A private network created within a cloud provider's infrastructure

  2. A public network that connects cloud resources to the internet

  3. A network that connects multiple cloud providers' networks

  4. A network that connects on-premises networks to cloud networks

Show answer
Correct Option: A
Explanation:

A virtual network (VNet) is a private network created within a cloud provider's infrastructure. It allows you to create a secure and isolated network environment for your cloud resources, such as virtual machines and containers.

What is the purpose of a subnet in cloud networking?

  1. To divide a VNet into smaller, more manageable segments

  2. To connect multiple VNet's together

  3. To provide a public IP address to a virtual machine

  4. To allow virtual machines in different VNet's to communicate with each other

Show answer
Correct Option: A
Explanation:

A subnet is a smaller, more manageable segment of a VNet. It allows you to group related resources together, such as virtual machines that are part of the same application, and to apply security policies to those resources.

What is the difference between a public and private IP address in cloud networking?

  1. A public IP address is assigned by the cloud provider and is accessible from the internet, while a private IP address is assigned by the user and is only accessible within the VNet

  2. A public IP address is assigned by the user and is accessible from the internet, while a private IP address is assigned by the cloud provider and is only accessible within the VNet

  3. A public IP address is used to connect to the internet, while a private IP address is used to connect to other resources within the VNet

  4. A public IP address is used to connect to other resources within the VNet, while a private IP address is used to connect to the internet

Show answer
Correct Option: A
Explanation:

A public IP address is assigned by the cloud provider and is accessible from the internet. This allows resources within the VNet to be accessed from the internet. A private IP address is assigned by the user and is only accessible within the VNet. This allows resources within the VNet to communicate with each other, but they cannot be accessed from the internet.

What is the purpose of a network security group (NSG) in cloud networking?

  1. To control the flow of traffic in and out of a VNet

  2. To provide a public IP address to a virtual machine

  3. To allow virtual machines in different VNet's to communicate with each other

  4. To connect multiple VNet's together

Show answer
Correct Option: A
Explanation:

A network security group (NSG) is a security policy that controls the flow of traffic in and out of a VNet. It allows you to specify which ports and protocols are allowed to be used, and which IP addresses are allowed to access the VNet.

What is the difference between a route table and a network interface card (NIC) in cloud networking?

  1. A route table contains a list of routes that determine how traffic is forwarded within a VNet, while a NIC is a virtual network adapter that connects a virtual machine to a VNet

  2. A route table contains a list of routes that determine how traffic is forwarded between VNet's, while a NIC is a virtual network adapter that connects a virtual machine to a VNet

  3. A route table contains a list of routes that determine how traffic is forwarded between VNet's, while a NIC is a virtual network adapter that connects a virtual machine to the internet

  4. A route table contains a list of routes that determine how traffic is forwarded within a VNet, while a NIC is a virtual network adapter that connects a virtual machine to the internet

Show answer
Correct Option: A
Explanation:

A route table contains a list of routes that determine how traffic is forwarded within a VNet. This allows you to control how traffic is routed between different subnets and resources within the VNet. A network interface card (NIC) is a virtual network adapter that connects a virtual machine to a VNet. It allows the virtual machine to communicate with other resources within the VNet and with resources on the internet.

What is the purpose of a load balancer in cloud networking?

  1. To distribute traffic across multiple virtual machines

  2. To provide a public IP address to a virtual machine

  3. To allow virtual machines in different VNet's to communicate with each other

  4. To connect multiple VNet's together

Show answer
Correct Option: A
Explanation:

A load balancer is a device that distributes traffic across multiple virtual machines. This helps to improve the performance and availability of your applications by ensuring that traffic is evenly distributed across all of the virtual machines in your pool.

What is the difference between a VPN gateway and a NAT gateway in cloud networking?

  1. A VPN gateway allows you to create a secure connection between your on-premises network and your VNet, while a NAT gateway allows you to access the internet from your VNet

  2. A VPN gateway allows you to access the internet from your VNet, while a NAT gateway allows you to create a secure connection between your on-premises network and your VNet

  3. A VPN gateway allows you to connect multiple VNet's together, while a NAT gateway allows you to access the internet from your VNet

  4. A VPN gateway allows you to create a secure connection between your on-premises network and your VNet, while a NAT gateway allows you to connect multiple VNet's together

Show answer
Correct Option: A
Explanation:

A VPN gateway allows you to create a secure connection between your on-premises network and your VNet. This allows you to access resources in your VNet from your on-premises network, and vice versa. A NAT gateway allows you to access the internet from your VNet. This allows resources in your VNet to communicate with resources on the internet, but it does not allow resources on the internet to access resources in your VNet.

What is the purpose of a firewall in cloud networking?

  1. To protect your VNet from unauthorized access

  2. To provide a public IP address to a virtual machine

  3. To allow virtual machines in different VNet's to communicate with each other

  4. To connect multiple VNet's together

Show answer
Correct Option: A
Explanation:

A firewall is a security device that protects your VNet from unauthorized access. It allows you to control which traffic is allowed to enter and leave your VNet, and it can be used to block malicious traffic, such as viruses and malware.

What is the difference between a private DNS zone and a public DNS zone in cloud networking?

  1. A private DNS zone is used to resolve DNS queries within a VNet, while a public DNS zone is used to resolve DNS queries from the internet

  2. A private DNS zone is used to resolve DNS queries from the internet, while a public DNS zone is used to resolve DNS queries within a VNet

  3. A private DNS zone is used to connect multiple VNet's together, while a public DNS zone is used to resolve DNS queries from the internet

  4. A private DNS zone is used to resolve DNS queries within a VNet, while a public DNS zone is used to connect multiple VNet's together

Show answer
Correct Option: A
Explanation:

A private DNS zone is used to resolve DNS queries within a VNet. This allows resources within the VNet to communicate with each other using domain names, rather than IP addresses. A public DNS zone is used to resolve DNS queries from the internet. This allows resources on the internet to access resources in your VNet using domain names, rather than IP addresses.

What is the purpose of a traffic manager in cloud networking?

  1. To distribute traffic across multiple endpoints

  2. To provide a public IP address to a virtual machine

  3. To allow virtual machines in different VNet's to communicate with each other

  4. To connect multiple VNet's together

Show answer
Correct Option: A
Explanation:

A traffic manager is a device that distributes traffic across multiple endpoints. This helps to improve the performance and availability of your applications by ensuring that traffic is evenly distributed across all of the endpoints in your pool.

What is the difference between a bastion host and a jump box in cloud networking?

  1. A bastion host is a virtual machine that is used to access other resources in a VNet, while a jump box is a physical server that is used to access other resources in a VNet

  2. A bastion host is a physical server that is used to access other resources in a VNet, while a jump box is a virtual machine that is used to access other resources in a VNet

  3. A bastion host is a virtual machine that is used to access other resources on the internet, while a jump box is a physical server that is used to access other resources on the internet

  4. A bastion host is a physical server that is used to access other resources on the internet, while a jump box is a virtual machine that is used to access other resources on the internet

Show answer
Correct Option: A
Explanation:

A bastion host is a virtual machine that is used to access other resources in a VNet. It is typically placed in a public subnet and is used to provide secure access to resources in the VNet from the internet. A jump box is a physical server that is used to access other resources in a VNet. It is typically placed in a private subnet and is used to provide secure access to resources in the VNet from on-premises networks.

What is the purpose of a service endpoint in cloud networking?

  1. To allow virtual machines in a VNet to access Azure services without having to go through the public internet

  2. To provide a public IP address to a virtual machine

  3. To allow virtual machines in different VNet's to communicate with each other

  4. To connect multiple VNet's together

Show answer
Correct Option: A
Explanation:

A service endpoint is a network interface that allows virtual machines in a VNet to access Azure services without having to go through the public internet. This helps to improve the performance and security of your applications by reducing the latency and exposure to threats.

What is the difference between a peering connection and a VPN connection in cloud networking?

  1. A peering connection allows you to connect two VNet's together, while a VPN connection allows you to connect your VNet to an on-premises network

  2. A peering connection allows you to connect your VNet to an on-premises network, while a VPN connection allows you to connect two VNet's together

  3. A peering connection allows you to connect multiple VNet's together, while a VPN connection allows you to connect your VNet to an on-premises network

  4. A peering connection allows you to connect your VNet to an on-premises network, while a VPN connection allows you to connect multiple VNet's together

Show answer
Correct Option: A
Explanation:

A peering connection allows you to connect two VNet's together. This allows resources in one VNet to communicate with resources in the other VNet, as if they were in the same VNet. A VPN connection allows you to connect your VNet to an on-premises network. This allows resources in your VNet to communicate with resources on your on-premises network, as if they were in the same network.

What is the purpose of a virtual WAN in cloud networking?

  1. To connect multiple VNet's together across different regions

  2. To provide a public IP address to a virtual machine

  3. To allow virtual machines in different VNet's to communicate with each other

  4. To connect multiple VNet's together within the same region

Show answer
Correct Option: A
Explanation:

A virtual WAN is a network that connects multiple VNet's together across different regions. This allows resources in one VNet to communicate with resources in another VNet, regardless of their location. Virtual WANs are used to create global networks that span multiple regions.

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