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NEW QUESTION # 56
Which of the following commands can be used to list IPv4 addresses and MAC addresses for IP devices that the system has seen on the local network?
- A. iwlist
- B. ipadm
- C. ifconfig
- D. arp
Answer: D
NEW QUESTION # 57
What mechanism does collectd use to gather monitoring information on systems?
- A. A master server connects to a collectd service on each machine to retrieve the information.
- B. It collects its own information on each server and sends that to a master server.
- C. It makes SNMP queries to the clients being monitored.
- D. It uses a library of plugins.
Answer: D
NEW QUESTION # 58
CORRECT TEXT
According to the Filesystem Hierarchy Standard (FHS), what is the path to the Linux kernel source and may be a symbolic link to the real Linux source code? (Please specify the full path with no version information.)
Answer:
Explanation:
/usr/src/linux, /usr/src/linux/
NEW QUESTION # 59
Which command can be used to scan a specified network looking for IP addresses that appear to be in use?
- A. tcpdump
- B. netscan
- C. nmap
- D. ip
- E. hostdiscover
Answer: C
NEW QUESTION # 60
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.)
Answer:
Explanation:
uid
NEW QUESTION # 61
Fill in the blank.
Which is the main configuration file for the SystemV init process? (Specify the full name of the file, including path.)
Answer:
Explanation:
/etc/inittab
NEW QUESTION # 62
The following is an excerpt from the output of tcpdump -nli eth1:
Which network service or protocol was used?
- A. HTTP
- B. DNS
- C. DHCP
- D. SSH
- E. FTP
Answer: E
NEW QUESTION # 63
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.)
- A. Move the web application's scripts and content a ram disk in order to ensure fast access and to avoid the need for swap space
- B. Update the hardware to increase the amount of available RAM to avoid using swap space
- C. Consider the installation of an additional application server to distribute the load if the expected growth continues over several months
- D. Delay any hardware upgrade until there is a significant consumption of swap space to ensure an efficient usage of the available hardware
- E. Create a RAID 1 device on the two swap partitions to avoid data loss in case swap space has to be used in the future
Answer: B,C
NEW QUESTION # 64
What is the purpose of a system mount unit?
- A. It is used only to mount network file systems to local mount points. It cannot be used for local media
- B. It is used by the command systemd-mount and allows users to mount partitions to mount points of their choice
- C. It is used by the command mount when using system to mount and unmount file systems
- D. It is created by the command systemd-fstab-generator to integrate entries from /etc/fstab into the system boot process
Answer: B
NEW QUESTION # 65
Which commands below are useful to collect data about remote filesystem connections? (Choose two.)
- A. fsiostat
- B. sadf
- C. nfsiostat
- D. pidstat
- E. cifsiostat
Answer: C,E
NEW QUESTION # 66
CORRECT TEXT
Which command is used to create a ISO9660 filesystem? (Specify ONLY the command without any path or parameters.)
Answer:
Explanation:
mkisofs, genisoimage
NEW QUESTION # 67
Which of the following files will be looked for and used by GNU make, if one of them exists, unless a different file is specified on the command line when trying to compile software from source code? (Choose TWO correct answers.)
- A. config.h.in
- B. Makefile
- C. makefile
- D. Makefile.in
- E. configure
Answer: B,C
NEW QUESTION # 68
CORRECT TEXT
After a lot of write operations, the administrator want to ensure that the kernel flushes the file system buffers to disk. Which command will accomplish this? (Specify ONLY the command without any path or parameters.)
Answer:
Explanation:
sync
NEW QUESTION # 69
CORRECT TEXT
What is the full path to the directory which contains the scripts (or links to the original scripts) to run while the system boots to SysV-init runlevel 2?
Answer:
Explanation:
/etc/rc2.d, /etc/rc2.d/, /etc/init.d/rc2.d, /etc/init.d/rc2.d/
NEW QUESTION # 70
Where is the LILO boot loader code typically installed on a system with only a single Linux installation and no other operating systems?
- A. At the start of the kernel.
- B. In the /boot directory.
- C. In the boot sector.
- D. In the master boot record.
Answer: D
NEW QUESTION # 71
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?
- A. freemem
- B. ps aux
- C. uptime
- D. top
- E. vmstat
Answer: D
NEW QUESTION # 72
Which of the following commands will list the IPv4 neighbors of the current system? This includes IP and MAC addresses. (Choose TWO correct answers.)
- A. netstat -al
- B. ip neigh show
- C. arp
- D. ifconfig -lv eth0
Answer: B,C
NEW QUESTION # 73
What is the functionality that PXE provides?
- A. The ability to verify a system's configuration before completing the boot process.
- B. The ability to verify a system's configuration after completing the boot process.
- C. The ability to boot a computer using its network interface.
- D. The ability to launch an remote X11 desktop on a computer.
Answer: C
NEW QUESTION # 74
A system has one hard disk and one CD writer which are both connected to SATA controllers. Which device represents the CD writer?
- A. /dev/sr1
- B. /dev/hdb
- C. /dev/sdd
- D. /dev/sr0
- E. /dev/scd1
Answer: D
NEW QUESTION # 75
What are the options to node.startup in the iscsid.conf file? (Choose TWO correct answers.)
- A. automatic
- B. login
- C. initiate
- D. discover
- E. manual
Answer: A,E
NEW QUESTION # 76
What effect does the -foption to the update-rc.dcommand have on files in the /etc/rcX.d/and / etc/init.d/directories?
- A. It will force the removal of the symlinks in /etc/rcX.d/even when the links are read only
- B. It will force the removal of symlinks in /etc/rcX.d/even if the corresponding init script still exists in / etc/init.d/
- C. It will remove both the symlinks in /etc/rcX.d/and the init script in /etc/init.d/
- D. It will remove the init script in /etc/init.d/and the symlinks in /etc/rcX.d/and update the package information of installed files
Answer: B
NEW QUESTION # 77
Which command reports information on memory usage, paging and block input/output?
- A. free
- B. vmstat
- C. memshow
- D. pidof
- E. lsof
Answer: B
NEW QUESTION # 78
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