I05-04

Question

https://gmatclub.com/forum/download/file.php?id=81285 GMAT-Club-Forum-mmjcwchl.png Improved version of this question is discussed HERE .

abhimahna · Answer

Official Solution:   
 
In each of tab 2 and 3, the victim virtual machine is either cloned or migrated, which would reasonably imply that the victimization is the cause of the backup method.

Correct answer:

Which of the following statements is most strongly supported by the information in the tabs?  "The purpose of the DoS victim machine in the experiments is to provide a theoretical impetus for migration."

sahilagrawal1998 · Answer

I just didn't get the solution you guys provided.

The reason in the solution and the answer doesn't coorelate , can someone explain this ?

A_Shrivastav · Answer

I think this is a  high-quality  question and the explanation isn't clear enough, please elaborate. The explanation is not clear

karanbhavnani99 · Answer

I think this the explanation isn't clear enough, please elaborate.

miag · Answer

can someone help provide an explanation for this one? not clear..

OmerKor · Answer

I did not quite understand the question. Hi,

I got this question right, but mainly through the process of elimination.

I think the word "theoretical" in the correct answer choice is only partially accurate. It’s unclear whether the DoS described is purely theoretical or has practical implications. Based on the text, the DoS attack actually creates a scenario that forces the host to change, meaning it has a real impact rather than being purely theoretical.

So, while I see why this answer choice was considered correct, I don’t fully agree that "theoretical" is the best description.

JuniqueLid · Answer

The last sentence of the first tab "To consider different migration types, a Denial of Service (DoS) scenario was created to increase the resource needs of a host to cause a migration from one physical host to another." provides the answer to this question. It didn't matter what the real world implications or causes are for migration, the context of the question is the experiement carried out to compare effectiveness and efficiency of two (of potentially many) migration methods - cloning and offline. In such experiemental environmental, there is no real attack, it is a theoretical scenario introduced to test results of the different migration methods.

Regardless, I agree with most people here that the question's stem information is rather confusing. For example, I wasn't able to see whether DoS is a form of side channel attack - if probably had to be assumed that it is, such that it makes sense to test the migration methods using it as a scenario.

Regardless, I agree with most people here that the question's stem information is rather confusing. For example, I wasn't able to see whether DoS is a form of side channel attack - if probably had to be assumed that it is, such that it makes sense to test the migration methods using it as a scenario.

Bunuel · Answer

Testing

Bunuel · Answer

Improved version of this question is discussed  HERE .

	Offline and cloning are the only two available types of virtual machine migration.
	The purpose of the DoS victim machine in the experiments is to provide a theoretical impetus for migration.
	For all virtual machine migration types completion time and guest system downtime are the same.
	Side channel attacks present a greater threat to virtually hosted machines than do DoS attacks.
	Hypervisors are intended to replace physical machines once cloud adoption becomes mainstream in computing.

I05-04

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