USoC22 - Complex Applications

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Assess understanding of the fourth session

Why is it easier to use qemu-guest instead of the manual approach?
*

1 point

Less arguments, focuses on the specific requirements of the app.

Easier to clean up, no need to kill the qemu instance.

More debug messages.

Provides a greater palette of functionalities to choose from.

Provides a faster running app.

Required

What is a necessary step in manually cleaning up your work?
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Note: the IP is dynamically assigned.

1 point

Killing the dnsmasq process.

Killing the dnsmasq libvirt-d process.

Running the make distclean command.

Deleting the directory used for mounting the file system required by the app.

Deleting the bridge.

Required

What are the 2 usecases for a Redis app?
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1 point

Storage of data on disk in order to be able to reconstruct the state of data in memory in case of a system restart; kubernetes.

Server; reverse proxy.

HTTP cache; Apache alternative.

Key-value databases; fast writing and reading of data from memory.

What is the easiest way to find the dynamically allocated IP for apps that use lwip with debug information enabled?
*

1 point

The qemu output.

You can't dynamically assign the IP, the app won't accept connections.

Inspecting the dnsmasq log file.

There's no need for inspecting anything, the script will take care of everything.

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