XK0-004試験無料問題集（485題）「CompTIA Linux+ Certification 認定」

出題：1

A systems administration team has decided to their systems as immutable instances. They keep the desired state of each of their systems in version control and apply automation whenever they provision a new instance. If there is an issue with one of their servers, instead of troubleshooting the issue they terminate the instance and rebuild it using automation.
Which of the following is this an example of?

A. Inventory

B. Infrastructure as code

C. Agentless deployment

D. Orchestration

正解：B 解答を投票する

出題：2

When requesting SSH access to a remote system, a user accidentally emailed the id_rsa key to the administrator. Which of the following should the user do NEXT?

A. Stop using that key and run ssh-keygen to generate a new key pair.

B. Ask the administrator to run chmod 600 id_rsa on the remote system.

C. Delete id_rsa key file and send the id_rsa.pub key file instead.

D. Run the ssh-add command to add the remote system to known_hosts.

正解：A 解答を投票する

出題：3

Given the output below:

Which of the following commands can be used to remove MyPhoto.jpg from the current directory?

A. unlink ./MyPhoto.jpg

B. ln -rm ./Pictures/photo.jpg

C. del Pictures/photo.jpg

D. rm -rf ./Pictures

E. rm -f MyPhoto.jpg

正解：B 解答を投票する

出題：4

A user wants to list the lines of a log, adding a correlative number at the beginning of each line separated by a set of dashes from the actual message. Which of the following scripts will complete this task?

A. Option D

B. Option C

C. Option A

D. Option B

正解：A 解答を投票する

出題：5

A Linux administrator is tasked with implementing a solution that will centralize information and allow it to be searchable and available for reporting purposes. Which of the following server roles should the administrator implement?

A. Logging

B. Proxy

C. NTP

D. SSH

E. DNS

正解：A 解答を投票する

出題：6

The dracut command is used to:

A. compile the Linux kernel images used to boot the OS.

B. create initial RAMDisk images for preloading modules.

C. create the Boot Manager configuration files.

D. create the bootloader executable files.

正解：B 解答を投票する

出題：7

When logging in, an administrator must use a temporary six-digit code that is displayed on a key fob.
Which of the following has been implemented?

A. HOTP

B. PKI

C. Software token

D. Biometrics

正解：A 解答を投票する

出題：8

A Linux administrator implemented a new HTTP server using the default configuration. None of the users on the network can access the server. If there is no problem on the network or with the users' workstations, which of the following steps will BEST analyze and resolve the issue?

A. Run netcat to ensure the port is correctly bound, and configure a static route to the web to allow access on ports 80 and 443

B. Run netstat to ensure the port is correctly bound, and configure the firewall to allow access on ports 80 and 443

C. Run route to ensure the port is correctly bound, and configure the firewall to allow access on ports 80 and 443

D. Run route to ensure the port is correctly bound, and configure SELinux to allow access on ports 80 and 443

正解：A 解答を投票する

出題：9

An administrator needs to mount the shared NFS file system testhost:/testvolume to mount point /mnt/testvol and make the mount persistent after reboot.
Which of the following BEST demonstrates the commands necessary to accomplish this task?

A. /root/anaconda-ks.cfg

B. /etc/sysconfig/anaconda/cfg

C. /root/anaconda.auto

D. /etc/sysconfig/installation.cfg

正解：A 解答を投票する

出題：10

An issue was discovered on a testing branch of a Git repository. A file was inadvertently modified and needs to be reverted to the master branch version. Which of the following is the BEST option to resolve the issue?

A. git branch -b master file

B. git stash branch master

C. git merge master testing

D. git checkout master -- file

正解：D 解答を投票する

出題：11

The lead Linux has added a disk, /dev/sdd, to a VM that is running out of disk space. Place the following steps in the correct order from first (1) to last (4) to add the disk to the existing LVM.

正解：

出題：12

A virtual machine logs al limes using UTC The systems administrator would like to have one script that outputs times that are in the Amenca/Chicago time zone. Which of the following would the administrator MOST likely use in the script to accounts.

A. date -d 'Tz="America/Chicago" now' >> mylog.txt

B. echo 'env TZ=America/Chicago date' >> mylog.-xt

C. timedatect1 set-timezone "America/Chicago" $$ date >> mylog.txt

D. hwclock --localtime >> -mylog.txt

正解：C 解答を投票する

出題：13

A Linux systems administrator wants the ability to access systems remotely over SSH using RSA authentication. to which of the following files should the RSA token be added to allow this access?

A. known_hosts

B. id_rsa.pub

C. ~/.ssh/ssh_config

D. authorized_keys

正解：B 解答を投票する

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