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Exam AZ-104 topic 1 question 32 discussion

Actual exam question from Microsoft's AZ-104

Question #: 32
Topic #: 1

Your company has an Azure Active Directory (Azure AD) subscription.
You need to deploy five virtual machines (VMs) to your company's virtual network subnet.
The VMs will each have both a public and private IP address. Inbound and outbound security rules for all of these virtual machines must be identical.
Which of the following is the least amount of network interfaces needed for this configuration?

A. 5
B. 10
C. 20
D. 40

Show Suggested Answer

Suggested Answer: A 🗳️

by lazz77 at July 3, 2021, 11:50 a.m.

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samshir

Highly Voted 3 years, 9 months ago

5 VM so 5 NIC Cards .we have public and private ip address set to them .however they needs same inbound and outbound rule so create NSG and attach to NIC and this req can be fulfilled 5 NIC hence 5 is right ans

upvoted 89 times

jackdryan

2 years, 4 months ago

A is correct

upvoted 6 times

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CloudyTech

Highly Voted 4 years ago

5 is correct

upvoted 26 times

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andted98

Most Recent 2 months, 4 weeks ago

Selected Answer: A

An NIC Card can have one public & multiple private IP addresses. In this case study, 5 VMs are to be deployed, hence 5 NICs are required.

upvoted 2 times

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0dc4dd8

5 months, 2 weeks ago

Selected Answer: A

Each virtual machine (VM) in Azure can have multiple network interfaces (NICs), but in this scenario, you only need one NIC per VM

upvoted 1 times

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Mark74

7 months ago

Selected Answer: A

A is correct, you can add public and private IP to the same Network card

upvoted 2 times

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minura

7 months, 2 weeks ago

Selected Answer: A

5 VMs - 5 Network Interface Cards (NIC)

upvoted 2 times

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dilopezat

7 months, 2 weeks ago

Selected Answer: A

To deploy five VMs with both public and private IP addresses, you would need at least five network interfaces (one for each VM). Each VM requires a network interface to connect to the virtual network, and since each VM will have both a public and a private IP address, you would typically assign one network interface per VM.

upvoted 1 times

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KangID

9 months, 2 weeks ago

5 Azure Virtual Machine. That's means at least 5 NICs on it. Ref. Constraints of Azure VM A VM must have at least one network interface attached to it https://learn.microsoft.com/en-us/azure/virtual-network/virtual-network-network-interface-vm

upvoted 2 times

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pooh0805

9 months, 2 weeks ago

Selected Answer: B

The least amount of network interfaces needed for this configuration is: B. 10 Here's why: You have five virtual machines (VMs), each with both a public and private IP address. To achieve this configuration, you need one network interface (NIC) for each VM. Each NIC has both a private IP address (associated with the virtual network subnet) and a public IP address (if you want to assign one). So, for the five VMs, you would need 5 NICs. Since each NIC has both a private and public IP address, you have a total of 5 NICs * 2 IP addresses per NIC = 10 IP addresses. Therefore, the least amount of network interfaces needed for this configuration is 10.

upvoted 3 times

Riz504

7 months ago

Question is "least amount of network interfaces" and not how many IPs so answer is 5 and not 10. i.e. A and not B.

upvoted 1 times

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18c2076

1 year, 3 months ago

You understand that you stated the entirely correct answer, and then immediately proceeded to contradict yourself with a stoopid statement that made zero sense right afterward, correct? lol

upvoted 6 times

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GODUSGREAT

1 year, 8 months ago

it's 5

upvoted 1 times

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GODUSGREAT

1 year, 8 months ago

The least amount of network interfaces needed for this configuration is one network interface per VM. Each virtual machine (VM) in Azure requires at least one network interface. In this scenario, you need to deploy five VMs, each with both a public and private IP address. To achieve this, you would need to create five network interfaces, one for each VM. Each network interface can be associated with both a public IP address (for inbound connections) and a private IP address (for internal communication within the virtual network). By configuring the appropriate security rules, you can ensure that the inbound and outbound traffic for all five VMs is identical. Therefore, the least amount of network interfaces needed for this configuration is one network interface per VM, resulting in a total of five network interfaces.

upvoted 1 times

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BigStevieMcDave

9 months, 2 weeks ago

I initially thought this was 10 too, because with physical NICs it would be. But I did some digging and I think 5 is correct. https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/virtual-network-network-interface-addresses?tabs=nic-address-portal "You can add as many private and public IPv4 addresses as necessary to a network interface, within the limits listed in the Azure limits article."

upvoted 3 times

etrop

1 year, 1 month ago

Not really no even with Physical systems you can have multiple IP addresses on one NIC card and you can just tag different VLANS on your NIC traffic, with one being the public VLAN. But honestly nobody would do that nowadays they would just have the public addresses reside on the firewall or outer edge systems.

upvoted 2 times

robsoneuclides

1 year, 1 month ago

Correto

upvoted 1 times

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[Removed]

10 months ago

Selected Answer: A

A is correct

upvoted 1 times

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demha2024

11 months, 2 weeks ago

5 is the correct answer "You can add as many private and public IPv4 addresses as necessary to a network interface, within the limits listed in the Azure limits article. You can add a private IPv6 address to one secondary IP configuration (as long as there are no existing secondary IP configurations) for an existing network interface. Each network interface can have one IPv6 private address. You can optionally add a public IPv6 address to an IPv6 network interface configuration. See IPv6 for details about using IPv6 addresses."

upvoted 1 times

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Nico1973

11 months, 4 weeks ago

The least amount of network interfaces needed for this configuration is B. 10. Each virtual machine requires two network interfaces - one for the public IP address and one for the private IP address. Therefore, with five virtual machines, you would need a total of 10 network interfaces to accommodate both types of IP addresses for each VM.

upvoted 2 times

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