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计算机考试 | IBM认证考试

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单选题 An application owner wants to grant write permission to all users for all the files and directories in the application directory. Which of the following is the correct command?()

A

chmod -R u+rw /application

B

chmod -r u+rw /application

C

chmod -R o+rw /application

D

chmod -r o+rw /application

单选题 The man page for command shows the following syntax: The man page for command shows the following syntax: command [ -a | -b ] Which of the following statements is true regarding this entry?()

A

Either the -a or flag -b may be used, but not both.

B

If the flag -a is used then the flag -b also must be used.

C

One of the -a or -b flags must be used, but not both at the same time.

D

Both the flags may be used together, but neither are mandatory.

单选题 What is the correct command to display the current working directory?()

A

echo $PWD

B

echo $pwd

C

echo $CWD

D

echo $cwd

单选题 What command would an operator use to move a file from the /old_dir directory to the /new_dir directory without changing the file name?()

A

mv /old_dir/file /new_dir

B

mv -p /old_dir/file /new_dir

C

mv -k /old_dir/file /new_dir

D

mv /old_dir/file /new_dir/new_file

单选题 An operator needs to run a script which will write standard output and standard error to different files. Which of the following commands will successfully perform this task?()

A

myscript.ksh 1>/tmp/log/script.log 2>/tmp/log/script.err

B

myscript.ksh $1>/tmp/log/script.log $2>/tmp/log/script.err

C

myscript.ksh 1>/tmp/log/script.log 2>1 /tmp/log/script/err

D

myscript.ksh 2>1 /tmp/log/script.log 2> /tmp/log/script.err

单选题 Which of the following AIX storage concepts is correct?()

A

A filesystem can span multiple physical volumes.

B

A physical volume can belong to more than 1 volume group.

C

A logical volume can have up to 2 copies in each of 2 volume groups.

D

The size of a filesystem is always the same size as its logical volume.

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