1Z0-106 Exam Dumps | Which two methods of changing kernel parameters can you use to modify values for the running system?

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Question 8/28

Which two methods of changing kernel parameters can you use to modify values for the running system?

A. Issuing the sysctl -w command to write values to specific files in the /proc/sys directory.

B. Using the echo command to write values to specific files in the /proc/sys directory.

C. Issuing the sysctl -w command to write values to specific files in the /sys directory.

D. Using the echo command to write values to specific files in the /sys directory.

E. Adding to or modifying parameters and values in the /etc/sysctl.conf file followed by issuing the sysctl - p command.

Correct Answer: A,B

Explanation of Answer A:Thesysctl -wcommand is used to modify kernel parameters at runtime. It allows you to set the value of a specific parameter in the/proc/sysdirectory. For example,sysctl -w net.ipv4.
ip_forward=1will enable IP forwarding by writing the value directly to the corresponding file in/proc/sys.
Explanation of Answer B:Using theechocommand to write values directly to specific files in the/proc
/sysdirectory is another method to change kernel parameters dynamically for the running system. For instance, echo 1 > /proc/sys/net/ipv4/ip_forwardachieves the same effect as thesysctl -wcommand.

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