[2021年12月26日] 完全版最新の問題集でPDFで最新201-450試験問題と解答
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Lpi 201-450 認定試験の出題範囲：
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質問 58
Which of the following best describes the format of the /etc/fstab file?
- A. mount point; filesystem type; device name; mount options; dump filesystem; fsck order
- B. device name; mount point; filesystem type; mount options; dump filesystem; fsck order
- C. device name; mount point; mount options; filesystem type; dump filesystem; fsck order
- D. mount point; device name; filesystem type; mount options; dump filesystem; fsck order
- E. device name; filesystem type; mount point; mount options; dump filesystem; fsck order
正解: B
質問 59
Due to extreme system use, a Linux system requires some additional swap space. To initialize 5 GB of additional swap space, which combination of commands should be used?
- A. dd if=/dev/zero of=/tmp/swapfile bs=1024 count=5120000; mkswap /tmp/swapfile;
- B. mkswap /tmp/swapfile 512000; swapon /tmp/swapfile
- C. mount /tmp/swapfile
dd if=/dev/zero of=/tmp/swapfile bs=1024 count=5120000; swapon /tmp/swapfile - D. swapon /tmp/swapfile
touch -5G /tmp/swapfile; swapon /tmp/swapfile - E. dd if=/dev/zero of=/tmp/swapfile bs=1024 count=5120000; mkswap /tmp/swapfile;
正解: E
質問 60
Which /etc/hosts.allow entries will permit access to sshd for users from the 192.168.1.0/24 subnet? (Choose TWO correct answers.)
- A. sshd : 192.168.1.0
- B. sshd : 192.168.1.
- C. sshd : 192.168.1.0 netmask 255.255.255.0
- D. sshd : 192.168.1
- E. sshd : 192.168.1.0/255.255.255.0
正解: B,E
質問 61
When a makefile is included in a source code package, what are commonly defined targets in the file?
- A. CFLAGS, CPPFLAGS, LIBS, LDFLAGS
- B. prefix, exec_prefix, bindir, mandir
- C. PATHS, DESTDIR, LIBS, LDFLAGS
- D. clean, install, uninstall
正解: D
質問 62
CORRECT TEXT
Which command turns an existing ext2 filesystem non-destructively into an ext3 filesystem? (Specify ONLY the command without any path or parameters.)
正解:
解説:
/sbin/tune2fs, tune2fs
質問 63
How is the source code for the main Linux kernel modules distributed?
- A. The kernel modules are downloaded on demand as they are used during compilation.
- B. It is provided as a separate download alongside the Linux kernel source code of the same version.
- C. The kernel modules have their own release cycle and can be maintained separately from the Linux kernel source.
- D. It is included with the Linux kernel source code.
正解: D
質問 64
If all of the following files and/or symlinks exist in a SysV-init runlevel directory, which of the following will be executed first when booting the system directly into the runlevel?
- A. K99lpi
- B. S99lpi
- C. S98lpi
- D. PRE-S99lpi
- E. S99a-lpi
正解: C
質問 65
Which of the following configuration files are used by tcpwrapper?
- A. /etc/access.allow and /etc/access.deny
- B. /etc/service.allow and /etc/service.deny
- C. /etc/hosts.allow and /etc/hosts.deny
- D. /etc/tcpwrapper.allow and /etc/tcpwrapper.deny
- E. /etc/tcpd.allow and etc/tcpd.deny
正解: C
質問 66
What should be done to ensure a client machine uses the recursive nameserver running on the IP address 192.168.0.1? (Choose TWO correct answers.)
- A. Run route add nameserver 192.168.0.1.
- B. Run ifconfig eth0 nameserver 192.168.0.1.
- C. Add nameserver 192.168.0.1 to /etc/resolv.conf.
- D. Ensure that the dns service is listed in the hosts entry in the /etc/nsswitch.conf file.
- E. Run bind add nameserver 192.168.0.1.
正解: C,D
質問 67
What does a 0 in the last field (fsck order) of /etc/fstab indicate about the filesystem?
- A. The filesystem does not require an fsck check when being mounted.
- B. The filesystem check counter is ignored.
- C. The filesystem has been disabled from being checked and mounted on the system.
- D. The filesystem should be checked before filesystems with higher values.
- E. The filesystem should be checked after filesystems with higher values.
正解: A
質問 68
CORRECT TEXT
Which file tells GRUB the paths of the filesystem partitions in both Linux format and in the GRUB syntax? (Specify the file name only with no path information)
正解:
解説:
device.map
質問 69
What is the correct parameter to pass to the kernel at boot time to force it to use only one of the available processors?
- A. smpcpus=1
- B. usecpus=1
- C. vcpumx=1
- D. maxcpus=1
正解: D
質問 70
Which command will report information on memory usage, paging and block input/output?
- A. vmstat
- B. top
- C. memshow
- D. free
- E. ps
正解: A
質問 71
What effect does the -foption to the update-rc.dcommand have on files in the /etc/rcX.d/and / etc/init.d/directories?
- A. It will remove both the symlinks in /etc/rcX.d/and the init script in /etc/init.d/
- B. It will force the removal of the symlinks in /etc/rcX.d/even when the links are read only
- C. It will remove the init script in /etc/init.d/and the symlinks in /etc/rcX.d/and update the package information of installed files
- D. It will force the removal of symlinks in /etc/rcX.d/even if the corresponding init script still exists in / etc/init.d/
正解: D
質問 72
In the following output, what is the 5 minute load average for the system?
# uptime
12:10:05 up 18 days, 19:00, 2 users, load average: 0.47, 24.71, 35.31
- A. 24.71
- B. 35.31
- C. 0.47
- D. There is no 5 minute interval. It is some value between 24.71 and 35.31.
- E. There is no 5 minute interval. It is some value between 0.47 and 24.71.
正解: A
質問 73
What command is used to make an exact copy, at a single point in time, of a logical volume for backup purposes?
- A. lvsnap
- B. lvcreate
- C. lvsnapshot
- D. lvclone
- E. lvcopy
正解: B
質問 74
Which command is used to make an exact copy, at a single point in time, of a logical volume while still allowing the original logical volume to be updated?
- A. lvsnap
- B. lvcreate
- C. lvsnapshot
- D. lvcclone
- E. lvm2
正解: B
質問 75
On a Linux node with multiple active network interfaces, each having a default route to the Internet, which default route is preferred?
- A. The default route with the highest MTU value
- B. The default route with the highest metric value
- C. The default route with the lowest TTL value
- D. The default route with the highest TTL value
- E. The default route with the lowest metric value
正解: E
質問 76
Which of the following is an example path to a Linux software RAID array?
- A. /dev/md1
- B. /dev/rd1
- C. /dev/raid0
- D. /dev/pr0
正解: A
質問 77
A Linux server running systemd booted to rescue.targetfor maintenance. Which commands are used to restore the server to its usual target? (Choose two.)
- A. systemctl emergency
- B. systemctl default
- C. systemctl reboot
- D. telinit 0
- E. sync
正解: B,D
質問 78
CORRECT TEXT
Please enter the complete path to the main SysV init process configuration file.
正解:
解説:
/etc/inittab
質問 79
Which of the following commands will provide the PIDs of the processes sorted by which are using the most CPU cycles on the Linux system?
- A. uptime
- B. vmstat
- C. top
- D. ps aux
- E. freemem
正解: C
質問 80
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