DCOM 142 CORE EXAM SET 2025/2026 QUESTIONS AND
ANSWERS GUARANTEE A+
✔✔What is the usual name of the first process that the Linux kernel runs, aside from
itself? - ✔✔init
✔✔Which of the following tools can you use to identify running processes? (choose two)
- ✔✔ps
top
✔✔Where do most log files reside on a Linux system? - ✔✔/var/log
✔✔Which of the following are package management commands for distributions with
software distributed in files ending in .rpm? (choose three) - ✔✔yumex
yum
rpm
✔✔You have created a new local network in one of the floors of tour office. All
networking devices and computers are physically connected to one another through
cables. How will you verify the logical connectivity among them? - ✔✔Executing the
ping command
✔✔How many bits does an IPv4 address have? - ✔✔32
✔✔Which of the following number formats is used to represent an IPv6 address? -
✔✔Hexadecimal
✔✔Which of the following options is used to uniquely identify a device over a network? -
✔✔IP address
✔✔What term refers to the worldwide system of servers that translates between IP
addresses and hostnames? - ✔✔DNS
✔✔Which of the following numbers denotes the root user? - ✔✔0
✔✔What is the effect of the following command, assuming it completes successfully?
$ groupadd ccbc - ✔✔It creates a new group called ccbc
✔✔Which of the following commands is used to switch from one user login to another in
a Linux computer? - ✔✔su
, ✔✔Which of the following utilities provides an efficient way to give specific users
permission to use specific system commands at the root level of a Linux computer? -
✔✔sudo
✔✔Which of the following commands provides a quick summary of every use logged
into a computer? - ✔✔w
✔✔Which of the following commands can be used to remove a group from a Linux
computer? - ✔✔groupdel
✔✔Which of the following users have ids ranging from 1-499? - ✔✔System users
✔✔Which of the following commands will display the group(s) a user belongs to? - ✔✔id
✔✔What is the effect of the following command?
$ tail /etc/passwd - ✔✔Displays the last ten users accounts information
✔✔What is the effect of the following command?
$ id -g - ✔✔displays primary group id
✔✔What does the permission string -rwxrwx--- mean? - ✔✔the files owner and
members of its group may both read, write, and execute the file. but other users have
no access to it.
✔✔which of the following command sets "owner" and "group" to rwx permissions and
"other" permissions on file to r-x? - ✔✔chmod 775 file
✔✔Which of the following permissions is set as default on the directories? - ✔✔777-
umask
✔✔Typing ls -ld wonderjay reveals the following output. which of the following are true?
(choose two)
drwxr-xr-x - ✔✔wonderjay may be read by all users of the system.
wonderjay is a directory.
✔✔Which of the following commands set "other" permissions on file to r-x? - ✔✔chmod
o=rx file
✔✔You have created a new file in your Linux computer. On executing the umask
command, you receive the umask value as 022. Identify the default permission set on
files. - ✔✔644
✔✔The "execute" permission on a file allows you to: - ✔✔Run the file as a script
ANSWERS GUARANTEE A+
✔✔What is the usual name of the first process that the Linux kernel runs, aside from
itself? - ✔✔init
✔✔Which of the following tools can you use to identify running processes? (choose two)
- ✔✔ps
top
✔✔Where do most log files reside on a Linux system? - ✔✔/var/log
✔✔Which of the following are package management commands for distributions with
software distributed in files ending in .rpm? (choose three) - ✔✔yumex
yum
rpm
✔✔You have created a new local network in one of the floors of tour office. All
networking devices and computers are physically connected to one another through
cables. How will you verify the logical connectivity among them? - ✔✔Executing the
ping command
✔✔How many bits does an IPv4 address have? - ✔✔32
✔✔Which of the following number formats is used to represent an IPv6 address? -
✔✔Hexadecimal
✔✔Which of the following options is used to uniquely identify a device over a network? -
✔✔IP address
✔✔What term refers to the worldwide system of servers that translates between IP
addresses and hostnames? - ✔✔DNS
✔✔Which of the following numbers denotes the root user? - ✔✔0
✔✔What is the effect of the following command, assuming it completes successfully?
$ groupadd ccbc - ✔✔It creates a new group called ccbc
✔✔Which of the following commands is used to switch from one user login to another in
a Linux computer? - ✔✔su
, ✔✔Which of the following utilities provides an efficient way to give specific users
permission to use specific system commands at the root level of a Linux computer? -
✔✔sudo
✔✔Which of the following commands provides a quick summary of every use logged
into a computer? - ✔✔w
✔✔Which of the following commands can be used to remove a group from a Linux
computer? - ✔✔groupdel
✔✔Which of the following users have ids ranging from 1-499? - ✔✔System users
✔✔Which of the following commands will display the group(s) a user belongs to? - ✔✔id
✔✔What is the effect of the following command?
$ tail /etc/passwd - ✔✔Displays the last ten users accounts information
✔✔What is the effect of the following command?
$ id -g - ✔✔displays primary group id
✔✔What does the permission string -rwxrwx--- mean? - ✔✔the files owner and
members of its group may both read, write, and execute the file. but other users have
no access to it.
✔✔which of the following command sets "owner" and "group" to rwx permissions and
"other" permissions on file to r-x? - ✔✔chmod 775 file
✔✔Which of the following permissions is set as default on the directories? - ✔✔777-
umask
✔✔Typing ls -ld wonderjay reveals the following output. which of the following are true?
(choose two)
drwxr-xr-x - ✔✔wonderjay may be read by all users of the system.
wonderjay is a directory.
✔✔Which of the following commands set "other" permissions on file to r-x? - ✔✔chmod
o=rx file
✔✔You have created a new file in your Linux computer. On executing the umask
command, you receive the umask value as 022. Identify the default permission set on
files. - ✔✔644
✔✔The "execute" permission on a file allows you to: - ✔✔Run the file as a script
