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Exam AZ-800 topic 3 question 8 discussion

Actual exam question from Microsoft's AZ-800
Question #: 8
Topic #: 3
[All AZ-800 Questions]

You have a server named Server1 that hosts Windows containers.
You plan to deploy an application that will have multiple containers. Each container will be on the same subnet. Each container requires a separate MAC address and IP address. Each container must be able to communicate by using its IP address.
You need to create a Docker network that supports the deployment of the application.
Which type of network should you create?

  • A. NAT
  • B. transparent
  • C. I2bridge
  • D. I2tunnel
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
by AvoKikinha at May 12, 2022, 10:38 p.m.

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AvoKikinha
Highly Voted 3 years, 1 month ago
Selected Answer: B
Wrong From: https://docs.microsoft.com/en-us/virtualization/windowscontainers/container-networking/network-drivers-topologies ransparent network driver Containers attached to a network created with the 'transparent' driver will be directly connected to the physical network through an external Hyper-V switch. IPs from the physical network can be assigned statically (requires user-specified --subnet option) or dynamically using an external DHCP server. L2bridge network driver Containers attached to a network created with the 'l2bridge' driver will be connected to the physical network through an external Hyper-V switch. In l2bridge, container network traffic will have the same MAC address as the host due to Layer-2 address translation (MAC re-write) operation on ingress and egress. In datacenters, this helps alleviate the stress on switches having to learn MAC addresses of sometimes short-lived containers. L2bridge networks can be configured in 2 different ways
upvoted 14 times
AnonymousJhb
2 years, 11 months ago
the question states "Each container requires a separate MAC address and IP address" thus l2bridge cannot be used since with l2bridge, "container network traffic will have the same MAC address as the host, due to Layer-2 address translation (MAC re-write) operation on ingress and egress. In datacenters, this helps alleviate the stress on switches having to learn MAC addresses of sometimes short-lived containers. Hence all the containers will have the same MAC addy. So L2bridge is out. with l2bridge > this driver should only be used in a Microsoft Cloud Stack (Azure). The only difference over l2bridge is that all container traffic is sent to the virtualization host. NAT is onl used for test/dev
upvoted 6 times
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AvoKikinha
3 years, 1 month ago
More info Transparent Same Subnet: Bridged connection Routed through container host L2Bridge Same Subnet: Bridged connection through Hyper-V virtual switch Cross Subnet: Container MAC address re-written on ingress and egress and routed Container MAC address re-written on ingress and egress
upvoted 3 times
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Bojana
Highly Voted 3 years, 1 month ago
Selected Answer: B
transparent
upvoted 8 times
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Ksk08
Most Recent 8 months ago
Answer is B
upvoted 1 times
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Joedn
1 year ago
Valid 05/28/2024
upvoted 2 times
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fabilo
1 year, 8 months ago
Selected Answer: B
B:Transparent
upvoted 2 times
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afridi43
1 year, 9 months ago
Selected Answer: B
B. transparent To create a Docker network that allows each container to have a separate MAC address and IP address while being on the same subnet and able to communicate using their respective IP addresses, you should use the "transparent" network mode.
upvoted 2 times
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syu31svc
2 years, 3 months ago
Selected Answer: B
"supports the deployment of the application" https://learn.microsoft.com/en-us/virtualization/windowscontainers/container-networking/network-drivers-topologies Transparent Good for Developers or small deployments Answer is B
upvoted 3 times
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darshanajayathilake
2 years, 3 months ago
Anser is transparent https://learn.microsoft.com/en-us/virtualization/windowscontainers/container-networking/network-drivers-topologies
upvoted 1 times
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arsh807
2 years, 6 months ago
Option B, as MAC Address Spoofing is required in Transparent mode only.
upvoted 3 times
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joehoesofat
2 years, 7 months ago
Answer is C- the l2bridge is used for the most common Azure setups" kubernetes and SDN- the others are corner cases - would those corner cases be on an exam? i dont think so https://learn.microsoft.com/en-us/virtualization/windowscontainers/container-networking/network-drivers-topologies
upvoted 1 times
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C (25%)
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