LinuxQuestions.org - Exam simulator all good options, just one answer

- Linux - Certification (https://www.linuxquestions.org/questions/linux-certification-46/)

- - Exam simulator all good options, just one answer (https://www.linuxquestions.org/questions/linux-certification-46/exam-simulator-all-good-options-just-one-answer-668069/)

Exam simulator all good options, just one answer

Hi, I'm preparing to take a LPIC-1 certification. On a test simulator, I got this question to answer:

Quote:

You started an X-application with the parameter -display foo:0 but you get
the message "Can't open display". What is the reason?

Choose the best answer.

foo is not known, try it with it's IP-address
you have to use foo:1 instead of foo:0
you must run the command "xhost foo" before the above command
you must run "xhost yourcomputer" on foo before the above command
you must be root to display something on other computer's screen

all of them make sense to me, however just one answer is permitted.

Opinions?

I think it's this one...

you must run "xhost yourcomputer" on foo before the above command

Tested for "cannot open display" error

Quote:

Originally Posted by custangro (Post 3272429)

I think it's this one...

you must run "xhost yourcomputer" on foo before the above command

Yep. I chose that one, but in doubt I tested the other options on my Fedora 9 box. All of them gave me a "cannot open display" error.