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NEW QUESTION 49
CORRECT TEXT
Which parameter must be passed to ifconfig to activate a previously inactive network interface? (Specify the parameter only without any command, path or additional options)
Answer:
Explanation:
up
NEW QUESTION 50
Which of the following commands should be added to /etc/bash_profile in order to change the language of messages for an internationalized program to Portuguese (pt)?
- A. export MESSAGE="pt"
- B. export UI_MESSAGES="pt"
- C. export LANGUAGE="pt"
- D. export LC_MESSAGES="pt"
- E. export ALL_MESSAGES="pt"
Answer: D
NEW QUESTION 51
How many fields are in a syntactically correct line of /etc/fstab?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
Answer: B
Explanation:
Explanation
NEW QUESTION 52
Which of the following commands will create an archive file, named backup.tar, containing all the files from the directory /home?
- A. tar /home backup.tar
- B. tar -xf backup.tar /home
- C. tar -xf /home backup.tar
- D. tar -cf backup.tar /home
- E. tar -cf /home backup.tar
Answer: D
NEW QUESTION 53
SIMULATION
What word is missing from the following SQL statement?
insert into tablename ________(909, 'text');
(Please specify the missing word using lower-case letters only.)
Answer:
Explanation:
VALUES -or- values
NEW QUESTION 54
CORRECT TEXT
Which Bash environment variable defines in which file the user history is stored when exiting a Bash process? (Specify ONLY the variable name.)
Answer:
Explanation:
HISTFILE
NEW QUESTION 55
What is the output of the following command sequence?
for token in a b c; do
echo -n "$token ";
done
- A. abc
- B. token token token
- C. "a " "b " "c "
- D. a b c
- E. anbncn
Answer: D
NEW QUESTION 56
Which of the following commands lists all defined variables and functions within Bash?
- A. echo $ENV
- B. set
- C. env
- D. env -a
Answer: B
NEW QUESTION 57
Which of the following files, located in the user home directory, is used to store the Bash history?
- A. .bash_history
- B. .history
- C. .history_bash
- D. .bashrc_history
- E. .bash_histfile
Answer: A
Explanation:
Explanation
NEW QUESTION 58
What is NOT contained in the locale setting of the operating system?
- A. thousands separator
- B. currency symbol
- C. timezone
- D. language
Answer: C
NEW QUESTION 59
Which of the following command sequences overwrites the file foobar.txt?
- A. echo "QUIDQUIDAGIS" > foobar.txt
- B. echo "QUIDQUIDAGIS" >> foobar.txt
- C. echo "QUIDQUIDAGIS" | foobar.txt
- D. echo "QUIDQUIDAGIS" < foobar.txt
Answer: A
NEW QUESTION 60
SIMULATION
What two character sequence is present at the beginning of an interpreted script? (Please specify the TWO correct characters only)
Answer:
Explanation:
#!
NEW QUESTION 61
Regarding the command: nice -5 /usr/bin/prog
Which of the following statements is correct?
- A. /usr/bin/prog is executed with a nice level of -5.
- B. /usr/bin/prog is executed with a nice level of 5.
- C. /usr/bin/prog is executed with a priority of -5.
- D. /usr/bin/prog is executed with a priority of 5.
Answer: B
NEW QUESTION 62
Which of the following commands lists the dependencies of a given dpkg package?
- A. apt-cache dependencies package
- B. apt-cache depends package
- C. apt-cache requires package
- D. apt-cache depends-on package
Answer: B
NEW QUESTION 63
Which of the following Linux filesystems preallocates a fixed number of inodes at the filesystem's make/creation time and does NOT generate them as needed? (Choose TWO correct answers.)
- A. ext2
- B. XFS
- C. JFS
- D. ext3
- E. procfs
Answer: A,D
NEW QUESTION 64
When the command echo $$ outputs 12942, what is the meaning of 12942?
- A. It is the process ID of the last command which has been placed in the background.
- B. It is the process ID of the echo command.
- C. It is the process ID of the current shell.
- D. It is the process ID of the last command executed.
Answer: C
NEW QUESTION 65
SIMULATION
With IPv6, how many bits have been used for the interface identifier of an unicast address? (Specify the number using digits only.)
Answer:
Explanation:
64
NEW QUESTION 66
Which of the following steps prevents a user from obtaining an interactive login session?
- A. Add the user to /etc/noaccess.
- B. Remove the user from the group staff.
- C. Create a .nologin file in the user's home directory.
- D. Run the command chsh -s /bin/false with the user name.
- E. Set the UID for the user to 0.
Answer: D
NEW QUESTION 67
What is the purpose of the iconv command?
- A. It changes the mode of an inode in the ext4 file system.
- B. It converts files from one character encoding to another.
- C. It converts bitmap images from one format to another such as PNG to JPEG.
- D. It displays additional meta information from icon files ending in .ico.
- E. It verifies that the root directory tree complies to all conventions from the Filesystem Hierarchy Standard (FHS).
Answer: B
NEW QUESTION 68
Which of the following find commands will print out a list of files owned by root and with the SUID bit set in /usr?
- A. find -type suid -username root -d /usr
- B. find /usr -ls \*s\* -u root
- C. find -user root +mode +s /usr
- D. find /usr -uid 0 -perm +4000
- E. find /usr -suid -perm +4000
Answer: D
NEW QUESTION 69
Which of the following kernel parameters instructs the kernel to suppress most boot messages?
- A. nomesg
- B. silent
- C. verbose=0
- D. quiet
Answer: D
NEW QUESTION 70
Which of the following commands will set the variable text to olaf is home? (Choose two)
- A. text=olaf\ is\ home
- B. $text='olaf is home'
- C. text=='olaf is home'
- D. text="olaf is home"
- E. text=$olaf is home
Answer: A,D
NEW QUESTION 71
What output will the following command sequence produce?
echo '1 2 3 4 5 6' | while read a b c; do
echo result: $c $b $a;
done
- A. result: 1 2 3 4 5 6
- B. result: 3 2 1
- C. result: 6 5 4 3 2 1
- D. result: 3 4 5 6 2 1
- E. result: 6 5 4
Answer: D
NEW QUESTION 72
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