Online Access Free 1Z0-409 Exam Questions

Match the following file redirection operators with their functions:
1) < a) redirects STDOUT to a file (overwrite)
2) > b) redirects STDIN from a file
3) >> c) redirects both STDOUT and STDERR
4) 2> d) redirects STDOUT to a file (append)
5) 2>> e) redirects STDERR to a file (overwrite)
6) &> f) redirects STDERR to a file (append)
7) 2>&1 g) redirects both STDOUT and STDERR

• A.1-b, 2-a, 3-d, 4-e, 5-f, 6-c, 7-g
• B.1-b, 2-a, 3-d, 4-f, 5-e, 6-c, 7-g
• C.1-c, 2-e, 3-f, 4-a, 5-d, 6-b, 7-g
• D.1-b, 2-e, 3-d, 4-a, 5-f, 6-c, 7-g
• E.1-b, 2-e, 3-f, 4-a, 5-d, 6-g, 7-c
• F.1-c, 2-a, 3-d, 4-f, 5-e, 6-g, 7-b

Which commands, without any options, could help a user to read the entire contents of a text file in his or her home directory? (Choose two.)

• A.head
• B.grep
• C.strings
• D.more
• E.xxd
• F.less

You have set HISTCONTROL=ignoreboth. What are the implications of this setting on history?

• A.It saves both duplicates and commands prefixed with a space.
• B.It ignores commands prefixed with a space but saves duplicates.
• C.It ignores both the duplicate commands and commands prefixed with a space.
• D.It ignores duplicates but saves the commands prefixed with space.

Match the following rpm options with their functions:
1.-i a. replaces any older versions of a package with the new package
2.-U b. upgrades packages, but only if an earlier version exists on your system
3.-F c. uninstalls the specified package
4.-e d. installs a new package

• A.1-d, 2-a, 3-b, 4-c
• B.1-a, 2-c, 3-b, 4-d
• C.1-a, 2-b, 3-c, 4-d
• D.1-d, 2-b, 3-a, 4-c

Which two statements are true about the su command? (Choose two.)

• A.Switching from normal user to super user requires a password.
• B.Switching from super user to normal user does not require a password.
• C.Switching from super user to super user requires a password.
• D.Switching from super user to normal user requires a password.
• E.Switching from normal user to normal user does not require a password.