Lpi Linux Professional Institute BSD Installation and Software Management 702 - 702-100 模擬練習
What subnet mask is used on network 192 168 32 0 in the following output?
Fxp0: flags=8843 <UP, BROADCAST, RUNNING, SIMPLEX, MULTICAST> mtu 1500 options=8 inet 192.168.50.162 netmask OxffffeOOO broadcast 192.168.63.255 ether 00:09:6B: 13:42:9f media: Ethernet autoselect (lOObaseTX <full-duplex>) status: active
Fxp0: flags=8843 <UP, BROADCAST, RUNNING, SIMPLEX, MULTICAST> mtu 1500 options=8 inet 192.168.50.162 netmask OxffffeOOO broadcast 192.168.63.255 ether 00:09:6B: 13:42:9f media: Ethernet autoselect (lOObaseTX <full-duplex>) status: active
正解: D
解説: (PassTest メンバーにのみ表示されます)
What option of uname displays the version of the running operating system'? (Specify ONLY the option name without any values or parameters.)
正解:
-v
Explanation
In FreeBSD, theunamecommand is used to display system information. The option-vspecifically displays the version of the running operating system. This information is critical for system administrators and users who need to know the exact version of the OS they are working with, particularly when troubleshooting, updating, or configuring the system for specific software requirements.
https://man.freebsd.org/cgi/man.cgi?query=uname&sektion=1&format=html
The -v or --version option of the uname command displays the version level of the operating system. This is a string that identifies the release date and patch level of the system. For example, on FreeBSD, the output would be something like:
FreeBSD 13.0-RELEASE-p4 #0: Tue Aug 24 07:12:34 UTC 2021
This indicates that the system is running FreeBSD 13.0, with the fourth patch applied, and that the kernel was built on August 24, 2021. The version level can be useful to determine the compatibility and security of the system, as well as to report bugs or issues.
Explanation
In FreeBSD, theunamecommand is used to display system information. The option-vspecifically displays the version of the running operating system. This information is critical for system administrators and users who need to know the exact version of the OS they are working with, particularly when troubleshooting, updating, or configuring the system for specific software requirements.
https://man.freebsd.org/cgi/man.cgi?query=uname&sektion=1&format=html
The -v or --version option of the uname command displays the version level of the operating system. This is a string that identifies the release date and patch level of the system. For example, on FreeBSD, the output would be something like:
FreeBSD 13.0-RELEASE-p4 #0: Tue Aug 24 07:12:34 UTC 2021
This indicates that the system is running FreeBSD 13.0, with the fourth patch applied, and that the kernel was built on August 24, 2021. The version level can be useful to determine the compatibility and security of the system, as well as to report bugs or issues.
How many /28 IPv4 subnets can be created within a /24 IPv4 prefix?
正解: D
解説: (PassTest メンバーにのみ表示されます)
Which command shows all processes owned by the user bob?
正解: B
解説: (PassTest メンバーにのみ表示されます)
Which of the following programs can be used to enumerate all responsive hosts on a subnet?
正解: B
解説: (PassTest メンバーにのみ表示されます)
What file contains the configuration for the network interface em0on an OpenBSD system'? (Specify the full name of the file, including path.)
正解:
/etc/hostname.em0
Explanation
The file /etc/hostname.em0 contains the configuration for the network interface em0 on an OpenBSD system.
This file specifies the IP address, netmask, gateway, and other options for the interface. The file is read by the netstart script during boot or when the interface is restarted. The file name is derived from the interface name, which is usually based on the driver name and the device number. For example, em0 is the first interface using the em driver, which supports Intel PRO/1000 network adapters.
References:
Networking | OpenBSD Handbook
[hostname.if(5) - OpenBSD manual pages]
Explanation
The file /etc/hostname.em0 contains the configuration for the network interface em0 on an OpenBSD system.
This file specifies the IP address, netmask, gateway, and other options for the interface. The file is read by the netstart script during boot or when the interface is restarted. The file name is derived from the interface name, which is usually based on the driver name and the device number. For example, em0 is the first interface using the em driver, which supports Intel PRO/1000 network adapters.
References:
Networking | OpenBSD Handbook
[hostname.if(5) - OpenBSD manual pages]
Which command shows the current user's group memberships?
正解: A
解説: (PassTest メンバーにのみ表示されます)