201-450ブレーン問題集PDF、Lpi 201-450試験問題豪華お試しセット
2023年最新された201-450サンプル問題は信頼され続ける201-450テストエンジン
質問 # 65
Which of the following commands adds a static IPv6 address to the network interface eth0?
- A. ip addr add -6 2001:db8::1337/64 dev eth0
- B. ip -6 addr add new 2001:db8::1337/64 dev eth0
- C. ip -6 add addr 2001:db8::1337/64 dev eth0
- D. ip add addr 2001:db8::1337/64 dev eth0
- E. ip addr add 2001:db8::1337/64 dev eth0
正解：B
解説：
Explanation/Reference:
質問 # 66
Due to extreme system use, a Linux system requires some additional swap space. To initialize 5GB of additional swap space, which combination of commands should be used?
- A. touch -5G /tmp/swapfile; swapon /tmp/swapfile
- B. dd if=/dev/zero of=/tmp/swapfile bs=1024 count=5120000; swapon /tmp/swapfile
- C. mkswap /tmp/swapfile 512000; swapon /tmp/swapfile
- D. dd if=/dev/zero of=/tmp/swapfile bs=1024 count=5120000; mkswap /tmp/swapfile; swapon /tmp/swapfile
- E. dd if=/dev/zero of=/tmp/swapfile bs=1024 count=5120000; mkswap /tmp/swapfile; mount
/tmp/swapfile
正解：D
質問 # 67
Which of the following is an example path to a Linux software RAID array?
- A. /dev/md1
- B. /dev/pr0
- C. /dev/rd1
- D. /dev/raid0
正解：A
質問 # 68
Which of the following configuration files are used by tcpwrapper?
- A. /etc/hosts.allow and /etc/hosts.deny
- B. /etc/tcpwrapper.allow and /etc/tcpwrapper.deny
- C. /etc/access.allow and /etc/access.deny
- D. /etc/service.allow and /etc/service.deny
- E. /etc/tcpd.allow and etc/tcpd.deny
正解：A
質問 # 69
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. touch -5G /tmp/swapfile; swapon /tmp/swapfile
- B. dd if=/dev/zero of=/tmp/swapfile bs=1024 count=5120000; swapon /tmp/swapfile
- C. mkswap /tmp/swapfile 512000; swapon /tmp/swapfile
- D. dd if=/dev/zero of=/tmp/swapfile bs=1024 count=5120000; mkswap /tmp/ swapfile; mount /tmp/swapfile
- E. dd if=/dev/zero of=/tmp/swapfile bs=1024 count=5120000; mkswap /tmp/ swapfile; swapon /tmp/swapfile
正解：E
質問 # 70
In order to gather performance data with sar over a longer period of time, which command should be run periodically from cron?
- A. sarmon
- B. sadf
- C. sa1
- D. sarec
- E. sarcron
正解：C
質問 # 71
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 # 72
CORRECT TEXT
What command ensures that the file systems are written to disk after a lot of write operations? (Specify ONLY the command without any path or parameters.)
正解：
解説：
sync
質問 # 73
A regular user has just run
./configure && make && make install
to build and install a program. However, the installation fails. What could be done to install the program?
(Choose two.)
- A. Do not run ./configurein order to maintain the default configuration for correct installation
- B. Run make install_local to install into /usr/local/
- C. Rerun ./configurewith a --prefix option where the user has permissions to write
- D. Install the binaries manually with suinstall
- E. Run make install with root privileges
正解：C、E
質問 # 74
Under which of the following circumstances would the command ping output the string (DUP!)?
- A. When the router responds to the ICMP packet in addition to the host receiving the ICMP packets.
- B. When the host being sent ICMP packets is on a different network.
- C. When the ICMP packets are send to a broadcast address and multiple hosts respond.
- D. When the host sending the ICMP packet is the same host as the one receiving the ICMP packets.
正解：C
質問 # 75
Which files are updated as devices are mounted and unmounted to provide information on the currently mounted devices and the options used? (Choose TWO correct answers.)
- A. /proc/mounts
- B. /proc/devices
- C. /etc/fstab
- D. /proc/dtab
- E. /etc/mtab
正解：A、E
質問 # 76
CORRECT TEXT
Which command is used to create a ISO9660 filesystem? (Specify ONLY the command without any path or parameters.)
正解：
解説：
mkisofs, genisoimage
質問 # 77
CORRECT TEXT
According to the Filesystem Hierarchy Standard (FHS), what is the path to the Linux kernel source and may be a symbolic link to the real Linux source code? (Please specify the full path with no version information.)
正解：
解説：
/usr/src/linux, /usr/src/linux/
質問 # 78
Fill in the blank.
What keyword is missing in the following line from /etc/fstabin order to grant the user fredwrite access to the files in the vfat file system on /dev/sdb1:
/dev/sdb1 /mnt/usbflash vfat defaults, _________=fred, umask=022, 0 0
(Specify ONLY the option name without any path or parameters.)
正解：
解説：
uid
質問 # 79
Which of the following is a CD-ROM filesystem standard?
- A. SR0FS
- B. ISO 9660
- C. OSI 9660
- D. ROM-EO
- E. ISO 8859
正解：B
質問 # 80
The IDE hard drive /dev/hda does not have DMA enabled. Which command must be run to enable DMA on it?
- A. hdparm --dma /dev/hda
- B. hdparm --dma /dev/hda1
- C. hdparm -d /dev/hda1
- D. hdparm -d /dev/hda
- E. hdparm -d 1 /dev/hda
正解：E
質問 # 81
A server requires a GRUB2 boot option which will always boot to runlevel 1. Which line of a GRUB2 configuration file starts the beginning of the settings needed to make this new choice available?
- A. initrd
- B. menuentry
- C. linux
- D. runlevel
正解：C
質問 # 82
What command is used to make an exact copy, at a single point in time, of a logical volume for backup purposes?
- A. lvsnapshot
- B. lvcopy
- C. lvclone
- D. lvsnap
- E. lvcreate
正解：E
質問 # 83
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