201-450試験問題集でPDF問題とテストエンジン
201-450問題集で必ず試験合格させる
質問 40
In the following output of the command uptime, the load averages represent the system load averages for what time frames?
12:10:05 up 18 days, 19:00, 2 users, load average: 0.47, 24.71, 35.31
- A. 1, 15 and 30 minutes
- B. 15, 45 and 90 seconds
- C. 5, 20 and 25 seconds
- D. 1, 5 and 15 minutes
- E. 15, 30 and 60 minutes
正解: D
質問 41
What is the purpose of an initramfs during the Linux system start?
- A. It creates a ram disk to store volatile data for directories like /tmpto reduce writes to disk
- B. It copies the root file system's content to RAM to speed up the system and reduce writes to disk
- C. It moves the kernel from normal system memory to initram memory to speed up kernel access
- D. It loads required modules and starts sub sytems like LVM to make the root file system accessible to the kernel
正解: D
質問 42
Where is the LILO boot loader code typically installed on a system with only a single Linux installation and no other operating systems?
- A. At the start of the kernel.
- B. In the boot sector.
- C. In the master boot record.
- D. In the /boot directory.
正解: C
質問 43
Which of the following are common Linux filesystem types used for root partitions?
(Choose THREE correct answers.)
- A. XFS
- B. NTFS
- C. ext4
- D. Btrfs
- E. VFAT
正解: A,C,D
質問 44
What information is found in the following excerpt from the file /proc/mdstat? (Choose two.)
- A. The information [3/2] means that 3 RAID disks belong to the array and 2 disks are spare. Together they equal the number of available disks
- B. The information [UU_] means, that the raid is missing one disk and is not fully redundant
- C. The spare disk /dev/sda1 is used to restore full redundancy after the current recovery
- D. One of the disks in /dev/md0 has failed and a spare disk is used to recreate full redundancy
- E. The device is using version 1.2 metadata to allow LILO and GRUB Legacy to use /dev/md0 as the boot partition. This would not have been necessary with GRUB2
正解: B,D
質問 45
CORRECT TEXT
What is the full path to the directory which contains the scripts (or links to the original scripts) to run while the system boots to SysV-init runlevel 2?
正解:
解説:
/etc/rc2.d, /etc/rc2.d/, /etc/init.d/rc2.d, /etc/init.d/rc2.d/
質問 46
Which single command simulates a failed device within a RAID 5 array?
- A. mdadm /dev/md0 --offline /dev/sdc1
- B. mdadm --remove /dev/md0 /dev/sdd1
- C. mdadm --zero-superblock /dev/sdf3
- D. mdadm --fail /dev/md0 /dev/sdc1
- E. mdadm --force-fault /dev/md2 /dev/sde2
正解: D
質問 47
CORRECT TEXT
Which command is used to unload a single module currently loaded by the kernel without unloading any modules that it depends upon? (Specify the command with or without path information)
正解:
解説:
rmmod, /sbin/rmmod
質問 48
Which one of these directories should not be backed up?
- A. /opt
- B. /backup
- C. /var/log
- D. /proc
- E. /etc
正解: D
質問 49
In which directory tree are files modified when changing kernel parameters using the command sysctl?
- A. /sys/kernel/
- B. /lib/sys/
- C. /proc/kernel/
- D. /sys/proc/
- E. /proc/sys/
正解: E
質問 50
Which of the following configuration files are used by tcpwrapper?
- A. /etc/service.allow and /etc/service.deny
- B. /etc/hosts.allow and /etc/hosts.deny
- C. /etc/tcpwrapper.allow and /etc/tcpwrapper.deny
- D. /etc/tcpd.allow and etc/tcpd.deny
正解: B
質問 51
Which commands below are useful to collect data about remote filesystem connections? (Choose two.)
- A. sadf
- B. fsiostat
- C. cifsiostat
- D. nfsiostat
- E. pidstat
正解: C,D
質問 52
In the following output, the load averages represent the system load averages for what time frames?
12:10:05 up 18 days, 19:00, 2 users, load average: 0.47, 24.71, 35.31
- A. 1, 15 and 30 minutes
- B. 15, 30 and 60 seconds
- C. 1, 15, and 30 seconds
- D. 1, 5 and 15 minutes
- E. 15, 30 and 60 minutes
正解: D
質問 53
Which of the following files will be looked for and used by GNU make, if one of them exists, unless a different file is specified on the command line when trying to compile software from source code? (Choose two.)
- A. makefile
- B. Makefile
- C. config.h.in
- D. configure
- E. Makefile.in
正解: A,B
質問 54
Which of the following commands displays the physical path of the kernel module named dummy?
- A. depmod -n dummy
- B. modinfo -n dummy
- C. modprobe -i dummy
- D. modpath -v dummy
- E. modshow -p dummy
正解: C
質問 55
The following is an excerpt from the output of tcpdump -nli eth1:
Which network service or protocol was used?
- A. FTP
- B. SSH
- C. HTTP
- D. DHCP
- E. DNS
正解: A
質問 56
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; swapon /tmp/swapfile
- B. dd if=/dev/zero of=/tmp/swapfile bs=1024 count=5120000; swapon /tmp/swapfile
- C. touch -5G /tmp/swapfile; swapon /tmp/swapfile
- D. dd if=/dev/zero of=/tmp/swapfile bs=1024 count=5120000; mkswap /tmp/ swapfile; mount /tmp/swapfile
- E. mkswap /tmp/swapfile 512000; swapon /tmp/swapfile
正解: A
質問 57
CORRECT TEXT
Please enter the complete path to the main SysV init process configuration file.
正解:
解説:
/etc/inittab
質問 58
Which of the filter keywords below could be used in the following command:
tcpdump -i eth0 ____________ 203.0.113.8
(Choose three.)
- A. dst
- B. ip
- C. ipv6
- D. host
- E. src
正解: A,D,E
解説:
Explanation/Reference:
質問 59
Which of the following wireless tools can be used to check the wireless network link quality? (Choose TWO correct answers.)
- A. iwifi
- B. iwconfig
- C. iwscan
- D. iw
- E. iwlink
正解: B,D
質問 60
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Lpi 201-450 認定試験の出題範囲：
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