無料Lpi 102-500試験問題と解答トレーニングを提供しています
トップクラスLpi 102-500オンライン問題集
質問 # 118
What is true about the file /etc/localtime?
- A. It is created and maintained by the NTP service based on the location of the system's IP address.
- B. It is a plain text file containing a string such as Europe/Berlin
- C. It is either a symlink to or a copy of a timezone information file such as /usr/share/zoneinfo/ Europe/Berlin.
- D. It is a symlink to /sys/device/clock/ltime and always contains the current local time.
- E. After changing this file, newtzconfig has to be run to make the changes effective.
正解：C
質問 # 119
Which standardized TCP port is used by HTTPS services?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
正解：E
質問 # 120
What is the conventional purpose of Linux UIDs that are lower than 100?
- A. They are used to match with GIDs in grouping users.
- B. They are reserved for system accounts.
- C. They are reserved for super user accounts.
- D. They are unused, aside from 0, because they are targets of exploits.
- E. They are reserved for the system admin accounts.
正解：B
質問 # 121
Which of the following is a valid IPv6 address?
- A. 2001::db8:4581::1
- B. 2001:db8:0g41::1
- C. 2001%db8%9990%%1
- D. 2001.db8.819f..1
- E. 2001:db8:3241::1
正解：E
質問 # 122
You need to pause the CUPS printer HPLaserjet4, and you want to cancel all print jobs with a message,
"hello". Which command will do this?
- A. cupsreject -c -r hello HPLaserjet4
- B. cupsreject -p -m hello HPLaserjet4
- C. cupsdisable -p -m hello HPLaserjet4
- D. cupsdisable -c -r hello HPLaserjet4
正解：D
質問 # 123
Which of the following are syslog facilities? (Choose two.)
- A. local5
- B. postmaster
- C. accounting
- D. remote
- E. mail
正解：A、E
質問 # 124
On a system using shadowed passwords, the most correct permissions for /etc/passwd are ___ and the most correct permissions for /etc/shadow are _________.
- A. -rw-r--r--, -r--------
- B. -rw-r--r--, -r--r--r--
- C. -rw-r-----, -r--------
- D. -rw-------, -r--------
- E. -rw-r--rw-, -r-----r--
正解：A
質問 # 125
Which of the commands below might have produced the following output?
- A. dig www.example.org
- B. dig -t soa www.example.org
- C. dig -t a www.example.org
- D. dig -t ns www.example.org
- E. dig -t mx www.example.org
正解：A
質問 # 126
What is a purpose of an SSH host key?
- A. It provides the server's identity information to connecting SSH clients.
- B. It authenticates any user that logs into a remote machine from the key's host.
- C. It is used by system services like cron, syslog or a backup job to automatically connect to remote hosts.
- D. It is root key by which all user SSH keys must be signed.
- E. It must be sent by any SSH client in addition to a user key in order to identify the client's host.
正解：A
質問 # 127
For accessibility assistance, which of the following programs is an on-screen keyboard?
- A. xOSK
- B. GOK
- C. atkb
- D. xkb
正解：B
質問 # 128
In order to bypass print filters using lpr, which of following switches should be used:
- A. lpr -o nofilter
- B. lpr -r
- C. lpr -l
- D. lpr -o raw
正解：C
質問 # 129
Which file specifies the user accounts that can NOT submit jobs via at or batch? (Provide the full path and filename)
正解：
解説：
/etc/at.deny
質問 # 130
Which of the following commands display a list of jobs in the print queue? (Choose two.)
- A. lpstat
- B. lpr -q
- C. lprm -l
- D. lpq
- E. cups --list
正解：A、D
質問 # 131
Which command allows you to make a shell variable visible to subshells?
- A. export $VARIABLE
- B. env VARIABLE
- C. export VARIABLE
- D. set $VARIABLE
- E. set VARIABLE
正解：C
質問 # 132
FILL BLANK
Which option in the /etc/ntp.conf file specifies an external NTP source to be queried for time information? (Specify only the option without any values or parameters.)
正解：
解説：
server
質問 # 133
Which of the following commands can be used to limit the amount of memory a user may use?
- A. umask
- B. usermod
- C. chage
- D. ulimit
- E. passwd
正解：D
質問 # 134
FILL BLANK
What command list the aliases defined in the current Bash shell? (Specify only the command without any path or parameters.)
正解：
解説：
alias
質問 # 135
Which configuration file does sudo read when determining if a user is permitted to run applications with root privileges?
- A. /etc/sudoers
- B. /etc/shadow
- C. /etc/sudo.conf
- D. /etc/audit.conf
正解：A
質問 # 136
Which of the following commands preloads and manages existing SSH keys that are used for automatic authentication while logging in to order machines using SSH?
- A. sshd
- B. ssh-agent
- C. ssh-keyring
- D. ssh-pki
- E. ssh-keygen
正解：E
質問 # 137
Which file lists which users can execute commands using sudo? (Specify the full name of the file, including path.)
正解：
解説：
/etc/sudoers
質問 # 138
FILL BLANK
Which directory holds configuration files for xinetd services? (Specify the full path to the directory.)
正解：
解説：
/etc/xinetd.d/
質問 # 139
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