XK0-004無料問題集「CompTIA Linux+ Certification」

質問 1

Which of the following BEST describes running on a Linux system?

（A）Containers only need the namespaces functionally to run on a Linux system available since kernel 2.6.

（B）Containers use the cgroups and namespaces functionalities to isolate processes and assign hardware resources to each of those isolated processes.

（C）Containers need a hypervisor to run a Linux system. Cgroups namespaces are functionalities used for the kernel but not for running containers.

（D）Containers only need the cgroups functionality for running on a Linux system. Namespaces is not a Linux kernel functionality needed for creating and managing containers.

正解：B 解答を投票する

質問 2

While creating a file on a volume, the Linux administrator receives the following message: No space left on device. Running the df -m command, the administrator notes there is still 50% of usage left. Which of the following is the NEXT step the administrator should take to analyze the issue without losing data?

（A）Run the df -i command and notice the inode exhaustion

（B）Run the df -h command and notice the space exhaustion

（C）Run the df -B command and notice the block size

（D）Run the df -k command and notice the storage exhaustion

正解：A 解答を投票する

質問 3

An administrator wrote the following script, but it failed:

Which of the following is MOST likely the error in the script?

（A）Line 1 should read: #!/bin/sh

（B）Line 6 should read: OWNER-'ls -1 ${LINE} I cut -d " " -f 1'

（C）Line 7 should read: echo '$(line) - S{OWNER)'

（D）Line 4 should read: for line in $ { FILES}

正解：A 解答を投票する

質問 4

Which of the following servers provides encrypted tunnel SOCKS services?

（A）SNMP

（B）CA

（C）VPN

（D）SSH

正解：D 解答を投票する

質問 5

An administrator wants to add a user named comptia to the system administrators group. Which of the following commands will accomplish this task?

（A）Useradd -sG wheel comptia

（B）visudo -sG wheel comptia

（C）sudo -sG wheel comptia

（D）Usermod -sG wheel comptia

正解：A 解答を投票する

質問 6

A Linux systems administrator needs to copy the contents of a directory named "working" on the local working system to a folder /var/www/html on a server named "corporate-web".
Which of the following commands will allow the administrator to copy all the contents to the web server?

（A）tar working/* webuser@corporate-web:/var/www/html

（B）mv working webuser@corporate-web:/var/www/html

（C）cp -r working/* webuser@corporate-web:/var/www/html

（D）scp -r working/* webuser@corporate-web:/var/www/html

正解：D 解答を投票する

質問 7

A Linux administrator wants to include a standard, hash_profile file whenever a new local user is created on Linux server. Which of the following is the BEST location to place the file?

（A）/etc/skel/

（B）/User/local/

（C）/Home/default_user/

（D）/etc/profile.d/

正解：B 解答を投票する

質問 8

A junior Linux administrator is installing a new application with CPU architecture requirements that have the following specifications:
x64 bit
3.0GHz speed
Minimum quad core
The administrator wants to leverage existing equipment but is unsure whether the requirements of these systems are adequate. The administrator issues the following command cat/proc/cpuinfo. The output of the command is as follows:

Which of the following is the recommended course of action the administrator should take based on this output?

（A）Reconfigure lib modules to support the new application.

（B）Install the application, as the system meets the application requirements

（C）Procure new equipment that matches the recommended specifications

（D）Recompile the Linux kernel to support the installation.

正解：B 解答を投票する

質問 9

A user does not want Bluetooth to start up event time the system starts. Which of the following commands should the user execute to accomplish this task?

（A）systemctl disable bluetccth.service

（B）systemctl disabled bluetcc-h.service

（C）systemctl stepped bluetccth.service

（D）systemctl stop bluetooth.service

正解：A 解答を投票する

質問 10

A junior systems administrator needs to schedule a backup script named /scripts/backup.sh and make the correct changes to the crontab.
Which of the following crontab entries would run the script every Monday at 2:05 a.m.?

（A）5 2 * * 1 /scripts/backup.sh

（B）2 5 * * 1 /scripts/backup.sh

（C）5 2 * * 0 /scripts/backup.sh

（D）1 * * 2 5 /scripts/backup.sh

（E）1 * * 5 2 /scripts/backup.sh

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 11

An administrator wants to use a Linux server's GUI remotely but is limited by security to using TCP port 22. Which of the following is the BEST choice for installation on the Linux server to enable this functionality?

（A）VNC

（B）X-forwarding

（C）NX

（D）XRDP

正解：A 解答を投票する

質問 12

A Linux adrmmstrator wants to resolve a remote server name locally. When of the following files should the administrator modify?

（A）/etc/resorv.conf

（B）/etc/network

（C）/etc/hosts

（D）/ett/rpc

正解：C 解答を投票する

質問 13

An administrator added a disk to a virtual machine. The administrator attempts to mount the first partition with the following command:
Mount/devsda1/mount_point
The administrator receives the following error message:
Mount: /mount_point: does not exist.
Which of the following BEST solves thrs issue and allows the administrator to run the mount command?

（A）mount -f /dev/sda1/mount_point

（B）mount -a

（C）Add the mount point to /etc/ fstab

（D）mkdir/mount_point

正解：B 解答を投票する

質問 14

A Linux administrator created a new log file in /var/log/newlog to monitor a newly installed application. The administrator is now configuring parameters of the file so it will be rotated on a weekly basis or when it becomes larger than 1MB in size. In addition, five rotations of the file should exist in the /var/log directory.
Which of the following should be added to the /etc/logrotate.conf file to meet this objective?

（A）

（B）

（C）

（D）

正解：D 解答を投票する

質問 15

A systems administrator notices a large number of autoloaded device modules are no longer needed and decides to do a cleanup of them. Which of the following commands will accomplish this task?

（A）modprobe -r

（B）insmod -c

（C）depmod -r

（D）rmmod -c

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

XK0-004 無料問題集「CompTIA Linux+ Certification」

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