XK0-005 無料問題集「CompTIA Linux+ Certification」
An administrator is investigating why a Linux workstation is not resolving a website. The output of dig and nslookup shows that IPv4 resolution is working, but IPv6 resolution fails.
The administrator executes:
nslookup -querytype=AAAA www.comptia.org
Can't find www.comptia.org: No answer
The workstation has a static entry in /etc/hosts:
104.18.99.101 www.comptia.org
Which of the following is the most likely cause?
The administrator executes:
nslookup -querytype=AAAA www.comptia.org
Can't find www.comptia.org: No answer
The workstation has a static entry in /etc/hosts:
104.18.99.101 www.comptia.org
Which of the following is the most likely cause?
正解：C
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A systems administrator is troubleshooting a connectivity issue pertaining to access to a system named db.
example.com. The system IP address should be 192.168.20.88. The administrator issues the dig command and receives the following output:
The administrator runs grep db.example.com /etc/hosts and receives the following output:
Given this scenario, which of the following should the administrator do to address this issue?
example.com. The system IP address should be 192.168.20.88. The administrator issues the dig command and receives the following output:
The administrator runs grep db.example.com /etc/hosts and receives the following output:
Given this scenario, which of the following should the administrator do to address this issue?
正解：C
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A systems engineer deploys a new application server, but the server cannot communicate with the back-end database hostname. The engineer confirms that the application server can ping the database server's IP address. Which of the following is the most likely cause of the issue?
正解：A
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An organization's business office needs to collaborate on quarterly reports and asks the systems administrator to create a finance group. The administrator creates the following directory:
drwxrwxr-x business business 4096 Oct 15 16:40 q1
Which of the following commands will allow all members of the finance group to have group ownership of all files created in the q1 directory while ensuring that members of the business group preserve access? (Select two.)
drwxrwxr-x business business 4096 Oct 15 16:40 q1
Which of the following commands will allow all members of the finance group to have group ownership of all files created in the q1 directory while ensuring that members of the business group preserve access? (Select two.)
正解：B、F
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