XK0-005無料問題集「CompTIA Linux+ Certification」

質問 1

An administrator needs to get network information from a group of statically assigned workstations before they are reconnected to the network. Which of the following should the administrator use to obtain this information?

（A）ifcfg -a

（B）ifcfg -s

（C）ip show

（D）i fname -s

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 2

A Linux administrator is trying to remove the ACL from the file /home/user/data. txt but receives the following error message:

Given the following analysis:

Which of the following is causing the error message?

（A）SELinux file context is denying the ACL changes.

（B）The administrator is not using a highly privileged account.

（C）The filesystem is mounted with the wrong options.

（D）File attributes are preventing file modification.

正解：D 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 3

A security team discovers that a web server has been running with elevated privileges and identifies it as a security violation. Which of the following items needs to be added to the webserver.service file to remediate the issue?

（A）In the [Install] section of the webserver.service file, add WantedBy=single.target.

（B）In the [Service] section of the webserver.service file, add User=comptia.

（C）Add After=network.target to the [Install] section of the webserver.service file.

（D）In the [Unit] section of the webserver.service file, add AllowIsolate=true.

正解：B 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 4

A user is unable to remotely log on to a server using the server name server1 and port 22. The Linux engineer troubleshoots the issue and gathers the following information:
Which of the following is most likely causing the issue?

（A）sshd is not an active service.

（B）server 1 is not in the DNS.

（C）sshd is running on a non-standard port.

（D）serverl is using an incorrect IP address.

正解：C 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 5

A systems administrator wants to check for running containers. Which of the following commands can be used to show this information?

（A）docker ps

（B）docker pull

（C）docker stats

（D）docker list

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 6

After installing some RPM packages, a systems administrator discovers the last package that was installed was not needed. Which of the following commands can be used to remove the package?

（A）rpm -i packagename

（B）dnf remove packagename

（C）apt-get remove packagename

（D）apt remove packagename

正解：B 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 7

A systems administrator wants to permit access temporarily to an application running on port 1234/TCP on a Linux server. Which of the following commands will permit this traffic?

（A）firewall-cmd -new-service=1234/tcp

（B）firewall-cmd -add-whitelist-uid=1234

（C）firewall-cmd -service=1234 -protocol=tcp

（D）firewall-cmd -add-port=1234/tcp

正解：D 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 8

A Linux systems administrator receives a notification that one of the server's filesystems is full. Which of the following commands would help the administrator to identify this filesystem?

（A）lsblk

（B）du -ah

（C）fdisk

（D）df -h

正解：D 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 9

A Linux administrator is troubleshooting the root cause of a high CPU load and average.

Which of the following commands will permanently resolve the issue?

（A）pstree -p 6295

（B）renice -n -20 6295

（C）iostat -cy 1 5

（D）kill -9 6295

正解：D 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 10

A Linux administrator needs to analyze a failing application that is running inside a container. Which of the following commands allows the Linux administrator to enter the running container and analyze the logs that are stored inside?

（A）docker exec -d app /bin/bash

（B）docker run -ti app /bin/sh

（C）podman exec -ti app /bin/sh

（D）podman run -d app /bin/bash

正解：C 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

A Linux administrator intends to start using KVM on a Linux server. Which of the following commands will allow the administrator to load the KVM module as well as any related dependencies?

（A）depmod kvm

（B）modprobe kvm

（C）insmod kvm

（D）hotplug kvm

正解：B 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 12

A Linux systems administrator is troubleshooting an I/O latency on a single CPU server. The administrator runs a top command and receives the following output:
%Cpu(s): 0.2 us, 33.1 sy, 0.0 ni, 0.0 id, 52.4 wa, 0.0 hi, 0.2 si, 0.0 st Which of the following is correct based on the output received from the exe-cuted command?

（A）The server's CPU is taking too long to process users' requests.

（B）The server's CPU shows a high idle-time value.

（C）The server's CPU is spending too much time waiting for data inputs.

（D）The server's CPU value for the time spent on system processes is low.

正解：C 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 13

A cloud engineer needs to launch a container named web-01 in background mode. Which of the following commands will accomplish this task''

（A）docker ps -a --name web-01 httpd

（B）docker builder -f -name web-01 httpd

（C）docker load --name web-01 httpd

（D）docker run -d --name web-01 httpd

正解：D 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 14

Users report that they cannot access some files located in the /opt/finapp directory after a power outage caused an unexpected server restart. A Linux administrator examines the following filesystem details and system logs:
# mount | grep finapp
/dev/mapper/rhel-opt_finapp on /opt/finapp type xfs (rw,relatime,seclabel,attr2,inode64,logbufs=8, logbsize=32k,noquota)
# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 931.5G 0 disk
##sda1 8:1 0 1G 0 part /boot
##sda2 8:2 0 930.5G 0 part
##rhel-root 253:0 0 30.5G 0 lvm /
##rhel-opt_finapp 253:1 0 900G 0 lvm /opt/finapp
# grep opt_finapp /var/log/messages
XFS (opt_finapp): Corruption detected in inode 3645, extent tree
Which of the following commands should the administrator run in an attempt to fix the filesystem?

（A）lvcreate -L900G -n opt_finapp rhel

（B）fsck.ext4 /dev/mapper/rhel-opt_finapp

（C）fdisk /dev/mapper/rhel-opt_finapp

（D）xfs_repair /dev/mapper/rhel-opt_finapp

正解：D 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 15

A systems administrator is adding a Linux-based server and removing a Windows-based server from a cloud- based environment. The changes need to be validated before they are applied to the cloud-based environment.
Which of the following tools should be used to meet this requirement?

（A）terraform plan

（B）git pull

（C）git clone

（D）Ansible

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 16

A Linux administrator is tasked with moving files in a database server. The administrator must not overwrite any existing files. Which of the following commands would indicate that the file already exists?

（A）mv-ffilename/tmp/backup

（B）mv-nfilename/tmp/backup

（C）mv-bfilename/tmp/backup

（D）mv-ifilename/tmp/backup

正解：D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

XK0-005 無料問題集「CompTIA Linux+ Certification」

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