DevNet Associate Module 1 Quiz

What is the purpose of the apt-get upgrade command on a Linux operating system?

• Every application installed will update itself to the latest version.

• Operating system updates are downloaded and will be installed.

• The remote repository of applications and dependencies will be updated to the latest version.

• A specific application named upgrade will be installed.

Which grep command should a Linux system administrator use to search the passwd file for any username that starts with a digit?

• grep ‘(0-9}’ /etc/passwd

• grep ‘[0-9]’ /etc/passwd

• grep ‘_[0-9]’ /etc/passwd

• grep ‘^[0-9]’ /etc/passwd

What is the output when the following code is entered into a Python program interpreter? [1,2,4,5] + [3,6]

• [1,2,3,4,5,6]

• [12]+[9]

• [1,2,4,5,3,6]

• [21]

What is displayed after the following code is entered into a Python interpreter? addition = 22 +10 print(addition)

• nothing ( because the print command is wrong)

• [22]+[10]

• (syntaxerror)-…as there should not be a space between the numerical values

• 32

What should be done prior to the configuration command if a Linux administrator receives a message that the administrator does not have necessary permissions to perform the configuration?

• use a different user account

• identify a different network interface

• use the sudo command

• change the chmod permissions on the network configuration file

What is the result of the command ifconfig -a on a server running a Linux operating system?

• Both active and inactive interfaces will display information.

• The ARP table of the computer will be displayed.

• All active interfaces will display information.

• The host routing table will be displayed.

A system administrator attempts to determine what is causing a computer to perform slower than normal. The administrator issues the ps command. What is displayed by this command?

• • active processes using CPU time

• • current HDD usage

• • current RAM usage

• • current NIC status

Which Linux command is used to display the contents of the current directory as shown?

• ls -lr

• ls

• ls -l

• ls -a

A user issues the Linux command
ls -l myfile.sh to check the permission of the file myfile.sh.

devasc@labvm:~/Documents$ ls -l myfile.sh -rwxr-xr-- 1 self test 15 Mar 30 21:24 myfile.sh

Which two statements describe the permissions assigned to the file? (Choose two.)

• • Any user in the test group can execute the file.

• • All users can execute the file.

• The user with the user ID of devasc can modify the file.

• • The user with the user ID of self can modify the file.

• • Any user in the self group can read, modify, and execute the file.

Which Python command creates a conditional control structure?

• def

• delay

• from

• if