04 November 2020

#Linux

Linux
What are basic elements or components of Linux?
What is BASH?
What is Kernel? Explain its functions.
What are two types of Linux User Mode?
What is LILO?
What is swap space?
What do you mean by a Process States in Linux?
What is Linux Shell? What types of Shells are there in Linux?
What is a maximum length for a filename under Linux?
What are file permissions in Linux? Name different types of file systems in Linux.
What is LVM and why is it required?
What is a “/proc” file system?
What do you mean by the daemons?
What is a Zombie Process?
What is the difference between cron and anacron?
What is load average in Linux?
What do you mean by Shell Script?
What is INODE and Process Id?
What is CLI and GUI?
What are the advantages of using NIC teaming?
What do you mean by Network bonding?
What are different network bonding modes used in Linux?
What is SSH? How we can connect to a remote server via SSH.
What is netstat command?
What is the ping command?
What is the function of grep command?
What is the pwd command?
What is pipe?
What are Linux directory commands?
What do you mean by unmask?
What is the difference between BASH and DOS?
What is samba? Why is it required?
What is the History of Linux?
What are the Features of the Linux Operating System?
What is LVM? Its a requirement in Linux?
What is Linux?
What is the difference between Linux and Unix?
What is the core of the Linux operating system?
What is the Linux Kernel?
What is CLI?
What is the advantage of Open Source?
What is the disadvantage of Open Source?
What is Shell?
What are the basic components of Linux?
What is a swap space?
What is the GUI?
What are the environmental variables?
What are the symbolic links?
What are the hard links?
What is redirection?
What are Daemons?
What are the different modes when using the vi editor?
What are inode and process id?
What are the Process states in Linux?
What Is a File system in Linux?
What is umask?
What is network bonding in Linux?
What are the different modes of Network bonding in Linux?
What are the default ports used for SMTP, DNS, FTP, DHCP, SSH, and squid?
What is the 'ls' command and what it does?
What is the tail command in Linux?
What is grep command in Linux?
What is ps command in Linux?
What is the env command in Linux?
What is the top Command in Linux?
What is netstat command in Linux?
What is lsof command in Linux?
What is the cp command in Linux?
What is mkdir in Linux?
What is meant by internal commands and external commands?
What is meant by PIPE in Linux?
What is a Stateless Linux Server?
What is Zombie Process?
What is the cat command in Linux?
What is the grep command in Linux?
What is ps command in Linux?
What is the netstat command in Linux?
What is the lsof command in Linux?
What is the df command in Linux?
What is a du command in Linux?
What is the iptables command in Linux?
What does the cd - command do?
What does cd command do?
What does (cd dir && command) do?
What does pushd command do?
What is ls -lSr command?
What is du -s * | sort -k1,1rn | head command used for?
What does this du -hs /home/* | sort -k1,1h command do?
What is df -h command?
What is df -i command?
What is fdisk -l command used for?
Name different types of modes used in VI editor.
Name the Linux that is specially designed by Sun micro system.
Name the file that is used to automatically mount file systems.
Name daemon that controls the print spooling process.
Name the first process that is started by the kernel in Linux and what is its process id?
Name default ports used for DNS, SMTP, FTP, SSH, DHCP and squid.
Name three standard streams in Linux.
Name the command that is used to check all the listening ports and services of your machine.
Name the command used to review boot messages.
Write the difference between Soft and Hard links?
Write difference between Linux and Unix.
Explain working of env command.
Explain File Permissions types in Linux?
Explain the virtual desktop?
Explain Process Management System Calls in Linux?
Explain File Permission groups in Linux?
Explain different file system types in Linux?
Explain about chmod command?
Explain about chown command?
Explain rmdir command in Linux?
Explain the features of Stateless Linux Server?
Explain the work of the Ctrl+Alt+Del key combination on the Linux operating system?
Why /etc/resolv.conf and /etc/hosts files are used?
Why LVM is required?
Why we use LINUX?
Why is Linux considered more secure than other operating systems?
Which command is used to check the default run level?
Which command is used to check the size of file or directory?
Which command is used to count the number of characters in a file?
Which command is used to check the memory status?
How many types of Shells are there in Linux?
How do you open a command prompt when issuing a command?
How to set the mask permanently for a user?
How to check the default route and routing table?
How to check which ports are listening in my Linux Server?
How to change the default run level in Linux?
How to share a directory using NFS?
How to lock a user account in Linux?
How to remove a file or directory from the system in Linux?
How to exit from vi editors?
How to delete information from a file in vi?
How do you kill the program using one port in Linux?
How do you limit memory usage for commands?
How do you get the full path of a file in Linux?
How do you list the contents of tar.gz and extract only one file?
How do you find who is logged in?
How do you check the permissions of each directory to a file?
How do you run the command every time a file is modified?
How to copy text to the clipboard?
How do you check resources usage?
How do you run a command for a limited time?
How do you combine two lines from two sorted files in Linux?
Where the kernel modules are located?
Who invented Linux? Explain the history of Linux?
Describe the root account?
Describe how a parent and child process communicates with each other?
Differentiate between BASH and DOS?
Enlist some Linux to file content commands?
Enlist some Linux distributors (Distros) along with their usage?
Linux OS internals
Under the Linux system, what is the typical size for swap partitions?
Can I have html form property without associated getter and setter formbean methods?
Can we handle exceptions in Struts programmatically?
Does Struts2 action and interceptors are thread safe?
For a single Struts application, can we have multiple struts-config.xml files?
Is Struts Framework part of J2EE?
Is Struts thread safe?
  • Linux
  • Basic - NFS, FTP, HTTP, LVM, RPM, DHCP
  • History
  • Linux vs Windows
  • Root
  • Install and update packages
  • System info
  • Networking
  • File management & Navigation - Create, Copy, Move, Delete, View, Edit
  • Regular expression (regex) with grep
  • User management - User, UserGroup, Permissions
  • SQUID
  • Samba
  • Pipe
  • Compressing

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