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

質問 1

A Linux administrator is configuring a web server that connects to an external SQL database. However, after starting the web application, the logs are show an error message:

Which of the following is the BEST way to resolve this issue?

（A）sed -1 s/'SELINUX. ' /SELINUXpermissive// etc/selinux/config

（B）restorecon -rv /var/www/ html

（C）setseboo1 -p http-can-network_connect_db 1

（D）echo 0> seLinux/enforce

正解：A 解答を投票する

質問 2

An administrator needs to change the IP address on a server remotely. After updating the configuration files, a network restart is needed. However, the administrator fears that when the network connection drops, the network restart script will be killed before the new IP address has been set.
Which of the following commands would prevent the script from being killed?

（A）service network restart &

（B）echo "service network restart" | at now

（C）dg service network restart

（D）nohup service network restart

正解：D 解答を投票する

質問 3

A site reliability engineer updated the latest configuration management scripts and committed them to a workstream called either test or patch. A Linux administrator wants to ensure these latest workstreams are able to be retrieved to the server. Which of the following is the BEST Git attribute to use?

（A）pull

（B）log

（C）branch

（D）fetch

正解：A 解答を投票する

質問 4

An administrator received a request from a security officer to eliminate a blacklisting set called internal-blocked the company is using in the iptables firewall.
Which of the following commands will complete the task?

（A）ipset swap internal-blocked none

（B）ipset del internal-blocked

（C）ipset destroy internal-blocked

（D）ipset remove internal-blocked

正解：C 解答を投票する

質問 5

Which of the following would allow remote users to access a corporate server? (Choose two.)

（A）VPN server

（B）SMTP server

（C）NTP server

（D）DHCP server

（E）File server

（F）SSH server

正解：A、F 解答を投票する

質問 6

Which of the following is the MOST common method used to access Windows systems that are running in a cloud provider from a Linux system?

（A）VNC

（B）NX

（C）SSH

（D）XRDP

正解：D 解答を投票する

質問 7

A Linux administrator retrieved a repository of files from a Git server using git clone. The administrator wants to see if a configuration file was added to the repository. Which of the following Git arguments should be used to see the recent modifications?

（A）pull

（B）init

（C）log

（D）fetch

正解：A 解答を投票する

質問 8

Which of the following commands should a Linux administrator use to open the firewall to allow incoming database connections?
A)

B)

C)

D)

（A）Option D

（B）Option B

（C）Option C

（D）Option A

正解：C 解答を投票する

質問 9

An administrator notices the HISTSIZE variable is 50, using the commands below:
HISTSIZE=50
export HISTSIZE
The administrator rechecks the HISTSIZE value using echo HISTSIZE but gets no value. Which of the following commands should the administrator use to retrieve its value?

（A）printenv | grep $HISTSIZE

（B）echo HISTSIZE

（C）grep $HISTSIZE

（D）printf HISTSIZE

正解：B 解答を投票する

質問 10

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）DNS

（B）Logging

（C）SSH

（D）NTP

（E）Proxy

正解：B 解答を投票する

質問 11

A Linux administrator looks at the /etc/timezone file and determines the need to change the time zone from California to New York temporarily. Which of the following commands will accomplish this?

（A）export TZ=America/New_York

（B）sed -f TZ=America/New_York

（C）printf TZ=America/New_York

（D）cat TZ=America/New_York

正解：A 解答を投票する

質問 12

An administrator needs to download a monitoring agent called node_exporter.0.16.0-Linux.amd64 from the internal web page https://company.local/downloads/. The server does not have graphical interface.
Which of the following commands will accomplish this task?

（A）curl -K https://company.local/downloads/node_exporter.0.16.0-Linux.amd64.tar.gz -o node_exporter.tar.gz

（B）curl -k https://company.local/downloads/node_exporter.0.16.0-Linux.amd64.tar.gz -o node_exporter.tar.gz

（C）curl -A https://company.local/downloads/node_exporter.0.16.0-Linux.amd64.tar.gz -o node_exporter.tar.gz

（D）curl --auth https://company.local/downloads/node_exporter.0.16.0-Linux.amd64.tar.gz

正解：B 解答を投票する

質問 13

A systems administrator manually added a new library to the server. The administrator wants to rebuild the library cache for immediate use.
Which of the following commands should the systems administrator run to achieve this goal?

（A）make install

（B）ldd

（C）ldconfig

（D）make

正解：C 解答を投票する

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

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