You've come across a Ruby script meant to perform a network sweep on a subnet during a penetration test. The script should efficiently conduct the sweep without needing step-by-step manual input. Which implementation of a method intended to achieve this goal is MOST effective?
System command execution for a command-line network tool for each network address.
Parallel assignment to configure network addresses before commencing the sweep.
An iterative process to handle one network address following another.
Creation of threads to handle network addresses concurrently.
The correct answer is the approach leveraging threads. Ruby's threading capabilities enable the execution of concurrent operations, facilitating the simultaneous sweep of multiple network addresses rather than processing each sequentially. This is especially advantageous for time efficiency when compared to an iterative approach which would handle one network address at a time. The use of system commands within the script for each network address relies on external command-line tools, which may not offer the same level of integration or automation as a threaded approach. Parallel assignment merely represents multiple variable assignments in a single statement, which does not inherently contribute to the efficiency of network operations within the script.
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What are threads in Ruby and how do they work?
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Why is using system command execution not the best method for network sweeps?