最新的Lpi LPIC-2 - Exam 202 (part 2 of 2), version 4.5 - 202-450免費考試真題
問題1
For what purpose is TCP/IP stack fingerprinting used by nmap?
正確答案: B
說明：（僅 VCESoft 成員可見）
問題2
There is a restricted area in a site hosted by Apache HTTPD, which requires users to authenticate against the file /srv/www/security/site*passwd.
Which command is used to CHANGE the password of existing users, without losing data, when Basic authentication is being used?
Which command is used to CHANGE the password of existing users, without losing data, when Basic authentication is being used?
正確答案: C
說明：（僅 VCESoft 成員可見）
問題3
In order to prevent all anonymous FTP users from listing uploaded file names, what security precaution can be taken when creating an upload directory?
正確答案: C
說明：（僅 VCESoft 成員可見）
問題4
Which of the following services belongs to NFSv4 and does not exist in NFSv3?
正確答案: C
說明：（僅 VCESoft 成員可見）
問題5
In order to export /usr and /bin via NFSv4, /exports was created and contains working bind mounts to /usr and
/bin. The following lines are added to /etc/exports on the NFC server:
After running
Explanation
mount-tnfsv4 server://mnt
of an NFC-Client, it is observed that /mnt contains the content of the server's /usr directory instead of the content of the NFSv4 foot folder.
Which option in /etc/exports has to be changed or removed in order to make the NFSv4 root folder appear when mounting the highest level of the server? (Specify ONLY the option name without any values or parameters.)
/bin. The following lines are added to /etc/exports on the NFC server:
After running
Explanation
mount-tnfsv4 server://mnt
of an NFC-Client, it is observed that /mnt contains the content of the server's /usr directory instead of the content of the NFSv4 foot folder.
Which option in /etc/exports has to be changed or removed in order to make the NFSv4 root folder appear when mounting the highest level of the server? (Specify ONLY the option name without any values or parameters.)
正確答案:
fsid
The fsid option in /etc/exports is used to specify a unique identifier for each exported filesystem.
For NFSv4, there is a distinguished filesystem which is the root of all exported filesystems, and it is specified with fsid=root or fsid=0, both of which mean the same thing. If this option is used for the /exports directory, then it will be the root of the NFSv4 hierarchy, and any subdirectories under it will be mounted relative to it. This means that when mounting the highest level of the server, the client will see the content of /exports instead of the NFSv4 root folder. To avoid this, the fsid option should be removed or changed to a different value for the /exports directory, so that it is not the NFSv4 root. The other options in /etc/exports are not relevant for this question.
The fsid option in /etc/exports is used to specify a unique identifier for each exported filesystem.
For NFSv4, there is a distinguished filesystem which is the root of all exported filesystems, and it is specified with fsid=root or fsid=0, both of which mean the same thing. If this option is used for the /exports directory, then it will be the root of the NFSv4 hierarchy, and any subdirectories under it will be mounted relative to it. This means that when mounting the highest level of the server, the client will see the content of /exports instead of the NFSv4 root folder. To avoid this, the fsid option should be removed or changed to a different value for the /exports directory, so that it is not the NFSv4 root. The other options in /etc/exports are not relevant for this question.
問題6
Which option in the Postfix configuration makes Postfix pass email to external destinations to another SMTP-server?
(Specify ONLY the option name without any values.)
(Specify ONLY the option name without any values.)
正確答案:
relayhost
Explanation:
The relayhost parameter in the Postfix configuration file (/etc/postfix/main.cf) specifies the hostname or IP address of an external SMTP server that will handle the outgoing emails for Postfix. This server is also known as a smarthost or a relayhost. By using a relayhost, Postfix can delegate the responsibility of delivering emails to remote destinations to another server that may have better network connectivity, security, or reputation. A relayhost can also provide authentication, encryption, or filtering services for Postfix. References:
Postfix Standard Configuration Examples
How to configure Postfix relayhost (smarthost) to send eMail using an external smptd
Explanation:
The relayhost parameter in the Postfix configuration file (/etc/postfix/main.cf) specifies the hostname or IP address of an external SMTP server that will handle the outgoing emails for Postfix. This server is also known as a smarthost or a relayhost. By using a relayhost, Postfix can delegate the responsibility of delivering emails to remote destinations to another server that may have better network connectivity, security, or reputation. A relayhost can also provide authentication, encryption, or filtering services for Postfix. References:
Postfix Standard Configuration Examples
How to configure Postfix relayhost (smarthost) to send eMail using an external smptd
問題7
In a BIND zone file, what does the @ character indicate?
正確答案: B
說明：（僅 VCESoft 成員可見）
問題8
Which of the following sshd configuration should be set to no in order to fully disable password based logins?
(Choose two.)
(Choose two.)
正確答案: B,C
說明：（僅 VCESoft 成員可見）
問題9
Which of the following statements allow the logical combinations of conditions in Sieve filters? (Choose two.)
正確答案: C,D
說明：（僅 VCESoft 成員可見）
