Practice Free EX342 Exam Online Questions
A user reports slow system performance. You are tasked to analyze CPU and memory usage for the last hour.
How can you collect this data?
- A . See the Explanation.
A
Explanation:
Use sar from sysstat package: install with yum install sysstat
Enable data collection: systemctl enable –now sysstat
View CPU usage: sar -u -s 08:00 -e 09:00
View memory usage: sar -r -s 08:00 -e 09:00
Save reports: sar -u -s 08:00 -e 09:00 > /tmp/cpu_usage.txt
A user reports slow system performance. You are tasked to analyze CPU and memory usage for the last hour.
How can you collect this data?
- A . See the Explanation.
A
Explanation:
Use sar from sysstat package: install with yum install sysstat
Enable data collection: systemctl enable –now sysstat
View CPU usage: sar -u -s 08:00 -e 09:00
View memory usage: sar -r -s 08:00 -e 09:00
Save reports: sar -u -s 08:00 -e 09:00 > /tmp/cpu_usage.txt
A user reports slow system performance. You are tasked to analyze CPU and memory usage for the last hour.
How can you collect this data?
- A . See the Explanation.
A
Explanation:
Use sar from sysstat package: install with yum install sysstat
Enable data collection: systemctl enable –now sysstat
View CPU usage: sar -u -s 08:00 -e 09:00
View memory usage: sar -r -s 08:00 -e 09:00
Save reports: sar -u -s 08:00 -e 09:00 > /tmp/cpu_usage.txt
Your RHEL system fails to boot and displays a GRUB> prompt instead of the boot menu.
How do you restore the bootloader and recover the system?
- A . See the Explanation.
A
Explanation:
You are asked to load a custom kernel module named mydriver.ko for a hardware device.
How do you load it manually and verify that it’s functioning?
- A . See the Explanation.
A
Explanation:
You are asked to load a custom kernel module named mydriver.ko for a hardware device.
How do you load it manually and verify that it’s functioning?
- A . See the Explanation.
A
Explanation:
You need to capture stack trace on memory allocation.
How do you do it using SystemTap?
- A . See the Explanation.
A
Explanation:
You need to capture stack trace on memory allocation.
How do you do it using SystemTap?
- A . See the Explanation.
A
Explanation:
You need to capture stack trace on memory allocation.
How do you do it using SystemTap?
- A . See the Explanation.
A
Explanation:
You need to capture stack trace on memory allocation.
How do you do it using SystemTap?
- A . See the Explanation.
A
Explanation: