EMT Practice Test

1. Question Content...

---

Question1: Fill in the blank.
Which program lists information about files and network connections opened by processes? (Specify ONLY the command without any path or parameters.)

Question2: Fill in the blank.
What command ensures that the file systems are written to disk after a lot of write operations? (Specify ONLY the command without any path or parameters.)

Question3: On a server running the 3.4.50-11 Linux kernel, which file in the /boot directory contains the kernel configuration parameters?

Question4: Fill in the blank.
What keyword is missing in the following line from /etc/fstabin order to grant the user fredwrite access to the files in the vfat file system on /dev/sdb1:
/dev/sdb1 /mnt/usbflash vfat defaults, _________=fred, umask=022, 0 0
(Specify ONLY the option name without any path or parameters.)

Question5: Which of the following init systems comes along with an own UEFI boot loader?

Question6: Which of the following properties should be recorded in order to monitor the quality of a network link?
(Choose two.)

Question7: In the output of sar -b, what does tps stand for?

Question8: Which of the following commands creates a Btrfs subvolume named volumein/mnt?

Question9: Fill in the blank.
What command will remove a physical volume from a volume group? (Specify ONLY the command without any path or parameters.)

Question10: How is the source code for the main Linux kernel modules distributed?

Question11: If the file containing the Linux kernel is deleted, what happens when the system boots?

Question12: Which command is used to make an exact copy, at a single point in time, of a logical volume while still allowing the original logical volume to be updated?

Question13: A network client has an Ethernet interface (eth0) configured with an IP address in the subnet
192.168.0.0/24. This subnet has a router, with the IP address 192.168.0.1, that connects this subnet to the Internet. Which of the following commands can be used on the client to enable it to use the router as its default gateway? (Choose two.)

Question14: Which of the following configuration files are used by tcpwrapper?

Question15: Which command is used to install a GRUB boot loader into the master boot record?

Question16: In the following output of the command uptime, the load averages represent the system load averages for what time frames?
12:10:05 up 18 days, 19:00, 2 users, load average: 0.47, 24.71, 35.31

Question17: Which of the following parameters instructs the kernel at boot time to use only one of the available processors?

Question18: What is the purpose of a system mount unit?

Question19: Which of the following commands by default provides the PIDs of the processes sorted by which are using the most CPU cycles on the Linux system?

Question20: Due to extreme system use, a Linux system requires some additional swap space. To initialize 5 GB of additional swap space, which combination of commands should be used?

Question21: What component of a system does smartdmonitor?

Question22: How can the label rootbe added to the ext4 filesystem on /dev/sda1?

Question23: Fill in the blank.
The users of the local network complain that name resolution is not fast enough. Which command shows the time taken to resolve a DNS query? (Specify the command without path.)

Question24: Which of the following commands displays the physical path of the kernel module named dummy?

Question25: Which commands below are useful to collect data about remote filesystem connections? (Choose two.)

Question26: Which command reports information on memory usage, paging and block input/output?

Question27: What information is found in the following excerpt from the file /proc/mdstat? (Choose two.)

Question28: What effect does the -foption to the update-rc.dcommand have on files in the /etc/rcX.d/and / etc/init.d/directories?

Question29: In order to gather performance data with sar over a longer period of time, which command should be run periodically from cron?

Question30: After the downloading patch-4.6.4.xz from http://kernel.org, what are the next steps to prepare the build of a version 4.6.4 Linux kernel? (Choose two.)

Question31: A web application server contains 64GB of RAM and two swap partitions on normal hard disk drives, each with a size of 64 GB. Within the last month, the average number of user sessions on this server has grown by 20 percent. At the same time, the average usage of RAM increased from 65 to 75 percent, while the swap space is almost not used at all. It is expected that the number of user sessions will continue to increase by about 15 to 20 percent each month. Which of the following reactions would be appropriate in response to these observations? (Choose two.)

Question32: After manually compiling and installing a new kernel, what has to be done regarding the initramfs?

Question33: What action should be performed after increasing the size of a logical volume?

Question34: Which of the following is a CD-ROM filesystem standard?

Question35: Fill in the blank.
After installation of a self-compiled kernel, modules that need to be loaded cannot be found. What make target was likely missed while installing the kernel? (Specify ONLY the make target without any command or parameters.)