100-140 Exam Dumps | A user is preparing to upgrade their Linux system and needs to check their current operating system version

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Question 212/301

A user is preparing to upgrade their Linux system and needs to check their current operating system version to ensure compatibility with new software.
Which command should the technician advise the user to execute?

A. uname -r

B. cat /etc/*-release

C. lsb_release -a

D. dmesg | grep Linux

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