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PrepTest 79, Game 4, Question 19

The analysis focuses on identifying the initial computer in a virus chain within a network, applying specific rules to eliminate incorrect options and deduce the correct answer.
  • Rule 3 indicates R and S cannot start the infection chain as they must receive the virus from another computer within the network.
  • Rules 4 and 5 further eliminate Q and P, as Q must receive the virus from R or T, and P must receive it from T or U.
  • Through process of elimination, T is identified as the only computer that could be the initial source of the virus.
  • A hypothetical scenario is constructed to demonstrate how T could feasibly transmit the virus to other computers in the network, adhering to all given rules.
Eliminating Incorrect Options
Applying Rule 3
Determining the Initial Source
Validating the Solution