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LPI 701-100 Exam - Topic 2 Question 20 Discussion

The following command is issued on two docker nodes:docker network create --driver bridge isolated_nwAfterwards, one container is started at each node with the parameter --network=isolated_nw. It turns out that the containers can not interact with each other. What must be done in order to allow the containers to interact with each other? (Choose two correct answers.)
C) Start the containers on the same node. and D) Change the --network parameter of docker create to --network=isolated_nw,nofence.
A) Use a host network instead of a bridged network.
B) Add the option --inter-container to the docker network create command.
E) Use an overlay network instead of a bridged network.

LPI 701-100 Exam - Topic 2 Question 20 Discussion

Actual exam question for LPI's 701-100 exam
Question #: 20
Topic #: 2
[All 701-100 Questions]

The following command is issued on two docker nodes:

docker network create --driver bridge isolated_nw

Afterwards, one container is started at each node with the parameter --network=isolated_nw. It turns out that the containers can not interact with each other. What must be done in order to allow the containers to interact with each other? (Choose two correct answers.)

Show Suggested Answer Hide Answer
Suggested Answer: C, D

Reference https://docs.docker.com/v17.09/engine/userguide/networking/#bridge-networks


by Rima at May 03, 2022, 05:41 AM

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Jacqueline
10 months ago
I thought bridged networks could work across nodes, guess I was wrong!
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Wynell
10 months ago
Starting containers on the same node is a workaround, but not ideal.
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Janey
10 months ago
Wait, can’t you just use a host network instead?
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Launa
10 months ago
Totally agree, bridged networks are limited to a single host.
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Ellen
11 months ago
You need an overlay network for cross-node communication.
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Lashunda
11 months ago
I don't recall any option like --inter-container in the Docker documentation. That one seems off to me.
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Nicolette
11 months ago
I practiced a similar question, and I feel like using a host network might work, but it seems risky for isolation.
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Osvaldo
11 months ago
I'm not entirely sure, but I think starting the containers on the same node could allow them to interact. That seems like a simpler solution.
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Jacquelyne
11 months ago
I remember something about bridge networks being limited to a single host, so I think we might need an overlay network for cross-node communication.
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Casie
11 months ago
I'm a bit confused by the different output options. I'll need to run the code myself or carefully walk through it to figure out which one is correct.
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Melina
11 months ago
Hmm, I'm a bit unsure about this one. There seem to be a few different options, and I want to make sure I choose the right approach to get all the users configured correctly.
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Keneth
11 months ago
Hmm, this looks like a tricky one. I'll need to think carefully about the different types of files used for inter-process communication.
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Mel
11 months ago
I remember something about the structure of the function, but I'm not certain how the message should be formatted before sending it.
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Gracia
11 months ago
Focus on what doesn't align with professional standards. Diverse perspectives and cross-functional expertise are crucial in fraud assessment, so I'd rule out the statement about team size.
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