April 6, 2019

Srikaanth

Concentrix Frequently Asked Latest Linux Interview Questions

What's Your Goal For Your Talk At Fosdem?

I’d like to communicate the basic ideas — that Linux is a good BIOS, and why; why Linux BIOS is built the way it is; where we are going; and how people can help. Most importantly, why it all matters — and it really matters a lot. We’re on the verge of losing control of the systems we buy, and we need to make a conscious effort, as a community, to ensure this loss of control does not happen. That effort will not be without some sacrifice, but if we are to maintain our ability to use and program our machines, and have fun with them, we have to act now. Because, if the computing business stops being fun, what’s the point$

What Are Mysql Transactions?

A set of instructions/queries that should be executed or rolled back as a single atomic unit.

Explain Multi-version Concurrency Control In Mysql?

Each row has two additional columns associated with it - creation time and deletion time, but instead of storing timestamps, MySQL stores version numbers.

Name Two Methods You Could Use To Rename A File?

Two methods that could be used
a. use the mv command
b. copy the file and give it a new name and then remove the original file if no longer needed.

List All The Files Beginning With A?

To list all the files beginning with A command: ls A*

Which Of The Quoting Or Escape Characters Allows The Dollar Sign ($) To Retain Its Special Meaning?

The double quote (") allows the dollar sign ($) to retain its special meaning. Both the backslash (\) and single quote (') would remove the special meaning of the dollar sign.
Concentrix Most Frequently Asked Latest Linux Interview Questions Answers
Concentrix Most Frequently Asked Latest Linux Interview Questions Answers

What Is A Faster Way To Do The Same Command? Mv Fileo.txt Newdir Mv Filel.txt Newdir Mv File2.txt Newdir Mv File3.txt Newdir?

A shortcut method would be: mv file?.txt newdir

List Two Ways To Create A New File

a.Copy a file to make a new file.
b. Use the output operator e.g. ls -l > newfile.txt

What Is The Difference Between > And >> Operators?

The operator > either overwrites the existing file (WITHOUT WARNING) or creates a new file.
The operator >> either adds the new contents to the end of an existing file or creates a new file.

How Can You See All Mounted Drives?

mount -l

How Can You Find A Path To The File In The System?

locate file_name (locate - list files in databases that match a pattern)

What Linux Hotkeys Do You Know?

Ctrl-Alt-F1 Exit to command prompt
Ctrl-Alt-F7 or F8 Takes you back to KDE desktop from command prompt
Crtl-Alt-Backspace Restart XWindows
Ctrl-Alt-D Show desktop

What Can You Tell About The Tar Command?

The tar program is an immensely useful archiving utility. It can combine an entire directory tree into one large file suitable for transferring or compression.

What Types Of Files You Know?

Files come in eight flavors
Normal files
Directories
Hard links
Symbolic links
Sockets
Named pipes
Character devices
Block devices

How You Will Uncompress The File?

Use tar command (The GNU version of the tar archiving utility)
tar -zxvf file_name.tar.gz

What Does Grep() Stand For?

General Regular Expression Parser.

Explain Mysql Locks.

Table-level locks allow the user to lock the entire table, page-level locks allow locking of certain portions of the tables (those portions are referred to as tables), row-level locks are the most granular and allow locking of specific rows.

Explain Mysql Architecture.

The front layer takes care of network connections and security authentications, the middle layer does the SQL query parsing, and then the query is handled off to the storage engine. A storage engine could be either a default one supplied with MySQL (MyISAM) or a commercial one supplied by a third-party vendor (ScaleDB, InnoDB, etc.)

List The Main Applications Of 8 Bit Microprocessors?

8 bit microprocessors are used in a variety of applications such as appliances automobiles ,industrial process and control applications.

What Is Nv-ram?

Nonvolatile Read Write Memory, also called Flash memory. It is also know as shadow RAM.

Can Rom Be Used As Stack?

ROM cannot be used as stack because it is not possible to write to ROM.

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