AZ-104 Exam - Question 471

Question

HOTSPOT-You have an Azure subscription that contains the virtual networks shown in the following table. The subnets have the IP address spaces shown in the following table. You plan to create a container app named contapp1 in the East US Azure region. You need to create a container app environment named con-env1 that meets the following requirements:•	Uses its own virtual network. •	Uses its own subnet. •	Is connected to the smallest possible subnet. To which virtual networks can you connect con-env1, and which subnet mask should you use? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

Examice · Accepted Answer

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Kuikz · Answer

Its VNET 3 only and /23

So we need a /23 mask, this means 512 IPs

I am a total newbie with this so i tried to find out what the possible IP Ranges are:
- VNET 1
10.1.128.0/23 = 10.1.128.0 - 10.1.129.255 (512 IPs)
- Sub 1
10.1.128.0/24 = 10.1.128.0 - 10.1.128.255 (256)
-> Not enough IPs available

- VNET 2
192.168.0.0/16 = 192.168.0.0-192.168.255.255
- Sub21
192.168.0.0 /17 = 192.168.0.0 - 192.168.127.255
- Sub22
192.168.128.0/17 = 192.168.128.0 - 192.168.255.255
-> The subnets take out the whole range of VNET 2

- VNET 3
172.16.0.0/16 = 172.16.0.0 - 172.16.255.255
- Sub3
172.16.1.0/24 = 172.16.1.0 - 172.16.1.255
-> VNET 3 still has most of the range for a /23 available. For example we could make the following /23 subnet: 172.16.2.0/23 = 172.16.2.0 - 172.16.3.255

Please correct me if i am wrong!

Novia · Answer

the Answer should be 
BOX 1 VNET 1 or VNET3 only
BOX2 /24
we have subnet mask either /24 or /17 from all subnets. the question did not say you can create a new subnet! therefore, /24 is the samllest subnet you can CHOOSE from the two.
Both VNET1 and VNET 3 have the subnets with mask /24

RonZhong · Answer

Q1: VNET 1 & VNET 3
Q2: /24 from Subnet1 or Subnet 3 (bigger than /27 & /23 as required below)

Container Apps has two different environment types, which share many of the same networking characteristics with some key differences.

1. Workload profiles environment: /27 is the minimum subnet size required for virtual network integration.

2. Consumption only environment: /23 is the minimum subnet size required for virtual network integration.

1828b9d · Answer

This question was in exam 01/03/2024

jacksparrowtabali · Answer

container apps need at least 512 IP addresses:
1- Vnet 1 does not have enough the remaining from subnet 1 will be 256.
2-Vnet2 the is full equipied and we do not have any IPs available
3- Vnet3 is having 65536 IPs and only equipied with 512 IPs so we still have so much space to host our ( /23) app container.

answer Vnet3 and /23

hfk2020 · Answer

Vnet1 only since that only has the subnet/23

[Removed] · Answer

VNet1 and VNet3 only have one subnet, that meets the first requirement.
They both use /24 and that is the smallest subnet mask in chart 2, meeting the third requirment.

PTark · Answer

VNET3 and /23

Razoir · Answer

To meet the requirements of creating a container app environment named con-env1 that uses its own virtual network, its own subnet, and is connected to the smallest possible subnet, you should connect con-env1 to vnet1 and use subnet1 with the smallest subnet mask available.

The available options are:

vnet1: 10.1.128.0/23, subnet1: 10.1.128.0/24
    vnet2: 192.168.0.0/16, subnet21: 192.168.0.0/17
    vnet3: 172.16.0.0/16, subnet3: 172.16.1.0/24

So, the correct options are:

Connect con-env1 to vnet1
    Use the subnet subnet1 with the subnet mask 10.1.128.0/24

Ni22 · Answer

6/13/24 on exam

ovas · Answer

Why not VNET1 and VNET3? Because the question asks for a smaller subnet, and the smaller subnet has a subnet mask of 24

vish9 · Answer

s per the following link /27 is the minimum subnet required https://learn.microsoft.com/en-us/azure/container-apps/networking?tabs=workload-profiles-env%2Cazure-cli#consumption-only-environment

Hence all three VNets can be used because those are bigger than /27. To keep the subnet smallest we should use /26 prefix.

Amir1909 · Answer

- VNet3 only 
- 23

hfk2020 · Answer

Environment selection
Container Apps has two different environment types, which share many of the same networking characteristics with some key differences.

Environment type	Description	Supported plan types
Workload profiles	Supports user defined routes (UDR) and egress through NAT Gateway. The minimum required subnet size is /27.	Consumption, Dedicated
Consumption only	Doesn't support user defined routes (UDR) and egress through NAT Gateway. The minimum required subnet size is /23.	Consumption

Answer is 23
https://learn.microsoft.com/en-us/azure/container-apps/networking?tabs=azure-cli

AAlmani · Answer

Given Ans is correct: 
-BOX 1 VNET1 or VNET2 or VNET3
-BOX2 /26
https://learn.microsoft.com/en-us/azure/container-apps/networking?tabs=workload-profiles-env%2Cazure-cli

kam1122 · Answer

Wt is the correct answer......

GreenTick · Answer

VNET1, VNET2, and VNET3.
/28.

it can use all VNETs, because it's located in the same region.
the subnets listed are the VNET's subnet, the maximum available range to use.
the requirement is to create the smallest subnet, 
The smallest supported IPv4 subnet is /29, and the largest is /2 (using CIDR subnet definitions). IPv6 subnets must be exactly /64 in size
https://learn.microsoft.com/en-us/azure/virtual-network/virtual-networks-faq
/29 is not in the list, so the next one will be /28.

AZ-104 Exam - Question 471

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