1Z0-409問題集、Oracle実際の試験問題

質問 1

You have received an email with a file login_remote, which is the HEX dump of a file.
View the Exhibit that shows a portion of this file.
How would you revert it to the original form in the name login?

A. By using the cat command with the -t option

B. By using the xxd command with the -r option

C. By using the strings command with the -t option

D. By using the strings command with the -a option

正解: B

質問 2

UNIX was known as the most stable operating system ever released. Identify two major design principles that help attain this stability. (Choose two.)

A. easily modifiable end user programs

B. entire policy decisions made by the kernel

C. all configuration data stored in binary files

D. everything in UNIX is either a file or a process

正解: A,D

質問 3

Match the print commands with their functionalities.
1.lpq a. printer control program
2.lprm b. Send a job to the queue to be printed.
3.lpr c. Remove a job from the queue.
4.lpc d. View the contents of the queue.

A. 1-d, 2-c, 3-b, 4-a

B. 1-d, 2-b, 3-c, 4-a

C. 1-a, 2-b, 3-c, 4-d

D. 1-a, 2-c, 3-b, 4-d

正解: A

質問 4

An attempt by bob to remotely access smith's shell results in an error as follows:
[bob@server100 ~]$ ssh server200
The authenticity of host 'server200 (192.168.0.200)' can't be established.
RSA key fingerprint is 1c:6e:b7:8b:65:cc:04:e8:16:ca:7e:81:de:d6:5e:c4.
What would you infer from the error?

A. This response is because ssh is unable to find server200 in the ~/.ssh/known_hosts file of server100.

B. The ssh verified that the system claiming to be server200 is server200 and not any other host.

C. The PubkeyAuthentication parameter is set to no in the /etc/ssh/ssd_config file.

D. The hostname could not be mapped to an IP address.

正解: A

質問 5

The user smith is asked to replace all occurrences of the letter "e" with the letter "y" in file1.txt and save the output to fix.txt. Which command would let the user smith do so? (Choose all that apply.)

A. sed /y/e/g file1.txt > fix.txt

B. sed /y/e/g file1.txt > ./fix.txt

C. sed s/e/y/g file1.txt > fix.txt

D. sed s/e/y file1.txt > fix.txt

E. sed s/e/y/g < file1.txt > ./fix.txt

正解: C,E

質問 6

You are writing a script and add the following line at the beginning of the script:
#!/bin/bash
What implications does this have on the shell script if the script is called directly at the c shell prompt?

A. The script will be executed using bash as the shell interpreter.

B. The script will be executed using bourne as the shell interpreter.

C. The script will treat the line as a comment.

D. The current shell will attempt to parse and execute the script.

正解: A

質問 7

Observe the code given below:
a=5.56
b=4.32
c=`echo $a + $b | bc`
echo "$a + $b = $c"
echo " Final Output is $c"
What would be the final output of this code?

A. 9.8

B. 9

C. 9.9

D. 9.88

正解: D

質問 8

View the Exhibit.
You have created a user account bob on a Linux machine and, when the user logs in, he has a broken shell as shown in the Exhibit. As a Linux administrator, what would you do in this situation to let user bob get rid of this error without compromising his privacy?

A. Change the user and group ownership of /home/bob recursively to bob.

B. Change the permissions of /home/bob recursively to 777.

C. Change the user bob's shell to /bin/bash by editing /etc/passwd.

D. Change the permission of /home/bob/.bash_profile to 770.

正解: A

質問 9

View the Exhibit.
/tmp/backups is a directory with SUID and SGID set as shown in the Exhibit. The user
smith is trying to access this directory.
Which three statements are true? (Choose three.)

A. The user smith has full permissions on the /tmp/backups directory because SUID enables him to work with the security context of the root user.

B. The user smith has full permissions on the /tmp/backups directory because SGID enables him to work with the security context of the root group.

C. The user smith cannot even list the files in the /tmp/backups directory because SUID is meant for executables only.

D. The user smith can only navigate to the /tmp/backups directory using the others permissions on the directory.

E. The user smith cannot even list the files in the /tmp/backups directory because not only SGID, but also the group membership an permissions for the group are required on the directory.

正解: C,D,E

質問 10

View the Exhibit.
What does the case statement do in the script? (Choose two.)

A. exits the script if 0 is supplied as the input

B. prints all output of all commands on standard output

C. executes the last echo statement if 0 is supplied as the input

D. executes like a series of if-then-else statements

正解: C,D

質問 11

Which two commands would you use to kill all the processes owned by the user smith? (Choose two.)

A. skill -1 -u smith

B. pkill -1 -u smith

C. pkill -9 -u smith

D. pkill -19 -u smith

E. skill -9 -u smith

正解: C,E

Oracle Linux Fundamentals (Oracle PartnerNetwork) - 1Z0-409 模擬練習