201-450 Free Practice Test

In the output of sar –b, what does tps stand for?

1. A. Terrabyte per second
2. B. Traffic per second
3. C. Transfers per second
4. D. Total data per second
5. E. Terrabit per second

Correct Answer: C

After manually compiling and installing a new kernel, what has to be done regarding the initramfs?

1. A. To initramfs is independent of the kernel and should not be modified unless the hardware configuration of the machine has changed
2. B. Since the initramfs contains kernel modules, a new initramfs must be built for the new kernel
3. C. During the compilation of the Linux kernel, a new initramfs is built automaticall
4. D. The new initramfs only needs to be installed
5. E. The system should be restarted since the initramfs reconfigures itself for the new kernel during the startup of the system

Correct Answer: C

Which two LVM commands are missing from the following sequence which is used to create a logical volume and make use of it on a Linux system?
pvcreate, _____, ______, mkfs, mount

1. A. lvcreate, mdadm
2. B. lvcreate, vgcreate
3. C. lvmcreate, vgcreate
4. D. vgcreate, lvcreate
5. E. vgcreate, mdadm

Correct Answer: D

What mechanism does collectd use to gather monitoring information on systems?

1. A. It uses a library of plugins.
2. B. A master server connects to a collectd service on each machine to retrieve the information.
3. C. It collects its own information on each server and sends that to a master server.
4. D. It makes SNMP queries to the clients being monitored.

Correct Answer: A

Which of the following commands erases the contents of the /dev/sdb3 partition?

1. A. rm /dev/sdb3
2. B. dd if=/dev/zero of=/dev/sdb3
3. C. dd of=/dev/zero if=/dev/sdb3
4. D. umount /dev/sdb3

Correct Answer: B