201-450のPDF問題集リアル2022最近更新された問題
リリースLpi 201-450更新された問題PDF
Lpi 201-450 認定試験の出題範囲：
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質問 22
Fill in the blank.
Which is the main configuration file for the SystemV init process? (Specify the full name of the file, including path.)
正解:
解説:
/etc/inittab
質問 23
Which of the following commands can be used to script interactions with various TCP or UDP services?
- A. strings
- B. ftp
- C. tcpdump
- D. wget
- E. nc
正解: E
質問 24
What is the purpose of the command vgextend?
- A. Extend a volume group's footprint on disk.
- B. Add physical volumes to an existing volume group.
- C. Create a volume group which uses all available space on disk.
- D. Increase the number of days between scheduled error checking.
正解: B
質問 25
In the following output, what percentage of time was the CPU waiting for pending I/O?
# vmstat 1 100
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa
0 0 0 282120 134108 5797012 0 0 0 2 0 0 0 0 100 0
0 0 0 282120 134108 5797012 0 0 0 0 1007 359 0 0 100 0
0 0 0 282120 134108 5797012 0 0 0 0 1117 577 0 0 100 0
0 0 0 282120 134108 5797012 0 0 0 0 1007 366 0 0 100 0
- A. 0
- B. 1
- C. 35.9
- D. 57.7
- E. 36.6
正解: A
質問 26
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
質問 27
How can the kernel parameter for the maximum size of the shared memory segment (shmmax) be changed to 2GB (2147483648 Bytes) on a running system? (Choose TWO correct answers.)
- A. echo 2147483648 > /proc/sys/kernel/shmmax
- B. export kernel.shmmax=2147483648
- C. Edit /etc/shmmax and set the parameter to 2147483648.
- D. sysctl kernel.shmmax=2147483648
- E. sysctl shmmax=2147483648
正解: A,D
質問 28
A network client has an ethernet interface (eth0) configured with an IP address in the subnet 192.168.0.0/24. This subnet has a router, with the IP address 192.168.0.1, that connects this subnet to the Internet. What needs to be done on the client to enable it to use the router as its default gateway? (Choose TWO correct answers.)
- A. echo defaultroute 192.168.0.1 >> /etc/resolv.conf
- B. route add defaultgw=192.168.0.1 if=eth0
- C. ip route add default via 192.168.0.1 dev eth0
- D. ifconfig eth0 defaultroute 192.168.0.1
- E. route add default gw 192.168.0.1 eth0
正解: C,E
質問 29
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 30
Which of the following parameters instructs the kernel at boot time to use only one of the available processors?
- A. smpcpus=1
- B. usecpus=1
- C. vcpumx=1
- D. maxcpus=1
- E. vmxcpus=1
正解: D
質問 31
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 32
CORRECT TEXT
Please enter the complete path to the main SysV init process configuration file.
正解:
解説:
/etc/inittab
質問 33
CORRECT TEXT
What command is used to send messages to all users currently logged in? (Specify ONLY the command without any path or parameters.)
正解:
解説:
wall
質問 34
Which of the following commands shows capabilities and usable frequencies for the wireless interface wlan0?
- A. iw dev wlan0 info
- B. iw phy pyh0 info
- C. iw phy wlan0 show
- D. iw phy0 show
- E. iw dev wlan0 show
正解: B
質問 35
Which RAID level value must be used with Linux software RAID in order to create an array of mirrored devices?
- A. 0
- B. container
- C. 1
- D. mirrorstripe
- E. 2
正解: A
質問 36
CORRECT TEXT
What keyword is missing in the following line from /etc/fstab in order to make a USB flash device writeable by the user fred when mounted:
/dev/sda1 /mnt/usbflash vfat defaults,users,______=fred,umask=022, 0 0
(Provide the option name only without any settings)
正解:
解説:
uid
質問 37
What mechanism does collectd use to gather monitoring information on systems?
- A. A master server connects to a collectd service on each machine to retrieve the information.
- B. It uses a library of plugins.
- C. It collects its own information on each server and sends that to a master server.
- D. It makes SNMP queries to the clients being monitored.
正解: B
質問 38
A correctly formatted entry has been added to /etc/hosts.deny to prevent certain clients from connecting to a service but this is having no effect. What could be the cause of this?
(Choose TWO correct answers.)
- A. tcpd needs to be sent the HUP signal.
- B. There is a conflicting entry in /etc/hosts.allow.
- C. The machine needs to be restarted.
- D. The service needs to be restarted.
- E. The service does not support tcpwrapper.
正解: B,E
質問 39
What information does the file modules.dep provide?
- A. A list of modules trusted by the installed kernel.
- B. A list of all compiled modules and their dependencies.
- C. A list of devices and their module name.
- D. A list of modules the kernel needs to run.
- E. A list of all modules, compiled or not, that are available to the kernel.
正解: B
質問 40
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201-450問題集と練習テスト（162試験問題)：https://jp.fast2test.com/201-450-premium-file.html
ガイド（2022年最新）実際のLpi 201-450試験問題：https://drive.google.com/open?id=1oBeFLUzM8s_bvtyj9-XCY9AYxJmEAD3Y