LPI Exam 305-300 Topic 3 Question 28 Discussion

Actual exam question for LPI's 305-300 exam

Question #: 28
Topic #: 3

[All 305-300 Questions]

Which of the following are true regarding the CPU of a QEMU virtual machine? (Choose two.)

AThe CPU architecture of a QEMU virtual machine is independent of the host system's architecture.

BEach QEMU virtual machine can only have one CPU with one core.

CFor each QEMU virtual machine, one dedicated physical CPU core must be reserved.

DQEMU uses the concept of virtual CPUs to map the virtual machines to physical CPUs.

EQEMU virtual machines support multiple virtual CPUs in order to run SMP systems.

Show Suggested Answer

Suggested Answer: A, E

by Charlene at Sep 16, 2024, 05:13 PM

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Denise

5 months ago

Hmm, let's see here. I'd go with D and E - the virtual CPU concept and support for SMP systems are key QEMU features. As for the other options, well, I'm not sure I'd want to be the one trying to run a QEMU VM with just one physical core. Talk about a recipe for a really, really slow virtual machine!

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Annice

4 months ago

Definitely, the virtual CPU concept and support for SMP systems are crucial for QEMU virtual machines.

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Keith

4 months ago

I think it's risky to only have one CPU with one core for a QEMU virtual machine.

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Jacklyn

4 months ago

Yeah, it's important for performance to be able to map virtual CPUs to physical CPUs.

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Malcolm

4 months ago

I agree, having multiple virtual CPUs for SMP systems is definitely a useful feature.

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Cornell

5 months ago

B is definitely false. I've used QEMU to create VMs with multiple virtual CPUs, so that option is out. As for the rest, I'd say D and E are the correct answers. Gotta love that virtual CPU magic, am I right? *winks*

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Chantell

5 months ago

A and D, without a doubt. The beauty of QEMU is that it can emulate any CPU architecture, so you're not limited by your host system. And the virtual CPU abstraction is what gives you that flexibility. Though I'm a little curious - what kind of host system can only spare one physical core per VM? That's just cruel.

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Tuyet

4 months ago

Yeah, it's surprising that some systems still have that limitation. Good thing QEMU allows for multiple virtual CPUs for SMP systems.

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Bev

4 months ago

I think the limitation of one CPU with one core per virtual machine is a bit outdated. Most systems can handle more than that nowadays.

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Janine

5 months ago

I agree, A and D are definitely true. QEMU's flexibility with CPU architecture is one of its biggest strengths.

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Selene

6 months ago

I'm not sure about E. But I think D is also true because QEMU maps virtual machines to physical CPUs.

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Adelle

6 months ago

Definitely D and E. QEMU's virtual CPU concept is the key to mapping virtual machines to physical CPUs, and supporting SMP systems is a must-have feature. I mean, who doesn't want their virtual machines to have more than one core these days?

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