Câu 124: CS0-003: CompTIA CySA+ (CS0-003)

A security analyst is writing a shell script to identify IP addresses from the same country. Which of the following functions would help the analyst achieve the objective?

1. A. function w() { info=$(ping -c 1 $1 | awk -F “/” ‘END{print $1}’) && echo “$1 | $info” }
2. B. function x() { info=$(geoiplookup $1) && echo “$1 | $info” } — đáp án hiện tại
3. C. function y() { info=$(dig -x $1 | grep PTR | tail -n 1 ) && echo “$1 | $info” }
4. D. function z() { info=$(traceroute -m 40 $1 | awk ‘END{print $1}’) && echo “$1 | $info” }