When a certain software update is installed on computer systems, the security programs that normally operate within the system typically respond by disabling key monitoring functions, with the result that the systems become vulnerable to serious security breaches. When systems are installed with both the update and a protective patch, security breaches occur far less frequently. The protective patch is known to counteract many effects of the update and does not itself interfere with normal security programs.Which of the following hypotheses is best supported by the information given?The correct answer to this Conclusion question will be the one that is clearly supported by facts stated by the passage.
A. Installing the protective patch without the update on systems that are not already vulnerable puts the systems at greater risk of security breaches than installing both the update and the patch does.The passage does not indicate that installing the patch ever puts a system at greater risk of breaches.
Eliminate.
B. The disabling of monitoring functions is the most common cause of security breaches in computer systems.This general statement about "the most common cause" of breaches in all "computer systems" is not supported by the passage.
The passage provides information on only the effects of "a certain software update," which may not be the "most common" cause of breaches.
Eliminate.
C. The protective patch interferes with the tendency of the update to disable key monitoring functions.This choice is supported by the passage because the passage says the following:
When a certain software update is installed ..., the security programs ... respond by disabling key monitoring functions, with the result that the systems become vulnerable to ... breachesand
When systems are installed with both the update and a protective patch, security breaches occur far less frequentlyGiven that disabling of key monitoring functions is the mechanism by which systems become vulnerable to breaches and that, with the patch installed, breaches occur less frequently, it makes sense to conclude that the patch interferes with the tendency to disable monitoring.
Keep.
D. For computer systems, increased vulnerability to security breaches is the most harmful effect of installing the update.The passage indicates only that increased vulnerability is
an effect of installing the update. It does not indicate that increased vulnerability is the only or the most harmful effect of installing it.
Eliminate.
E. If the protective patch is installed along with the update, the version of the update required to achieve its intended performance improvement can generally be reduced.While this could be true, the passage does not clearly indicate anything about "performance improvement" or which "version" of the update is required.
The information in the passage indicates only that the patch improves "security," not that it improves "performance."
Eliminate.
Correct answer: C