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The correct answer is Linux Operating System.

Additional Information

• A Kernel a core component and central module of the Linux Operating system.
• It is the first program after bootloader which is loaded and controls everything in the OS. It acts as an interface between application and hardware.
• It is responsible for memory management,disk management and process and task management.

The correct answer is (i) False, (ii) False, iii) True

Key Points

• Ctrl + Y is used to perform a "redo" operation in MS-Word.
• Ctrl + Z is used to perform an "undo" operation in MS-Word.
• Undo means to cancel or reverse the effects or results of (a previous action or measure).
• Redo means to do (something) again or differently.
• Center the text - Ctrl+E.

Additional Information

Important Shortcut keys used in MS Word:

• Cut the selected content to the Clipboard - Ctrl+X
• Copy the selected content to the Clipboard - Ctrl+C
• Paste the contents of the Clipboard -Ctrl+V
• Increase the font size by 1 point.- Ctrl+]
• Align the text to the left - Ctrl+L.

The correct answer is option 2 i.e Wireless fidelity.

Additional Information

• Wireless fidelity is the full form of Wi-Fi.
• Wi-Fi is a wireless local area network.
• It was introduced in 1997.
• It allows an electronic device to exchange data wirelessly using radio waves.
• Wi-Fi provides services in private homes, businesses, as well as in public spaces.
• Wi-Fi positioning systems use the positions of Wi-Fi hotspots to identify a device's location.

When the user presses CTRL+9 it hides the current row in Microsoft excels.

The Internet Control Message Protocol (ICMP) is a supporting protocol in the Internet protocol suite. It is used by network devices, like routers, to send error messages and operational information indicating, for example, that a requested service is not available or that a host or router could not be reached. ICMP differs from transport protocols such as TCP and UDP in that it is not typically used to exchange data between systems, nor is it regularly employed by end-user network applications (with the exception of some diagnostic tools like ping and traceroute).

Hackers are usually real technology buffs which modify computer hardware or software in a way that alters the creator's original content.

The correct answer is Extensible Markup Language.

Key Points

• XML stands for Extensible Markup Language. It is a text-based markup language derived from Standard Generalized Markup Language (SGML). 
• XML tags identify the data and are used to store and organize the data, rather than specifying how to display it like HTML tags, which are used to display the data.
• It is a meta markup language for text documents/data. It allows to define languages to represent text. It is designed to describe data not to display data. XML tags are not predefined.
• An XML document is well formed it satisfies rule specified by the W3C.
• XML tags are case sensitive.
• A well-formed XML have a proper starting and closing tag.
• An XML documented validated against a DTD is both “Well-Formed” and “valid”.
• Purpose of DTD is to define the structure and legal elements and attributed of a XML document.
• XML does not require DTD.
• XML carries the data; it does not represent it.
• XML can be used for offloading and reloading of databases.

The Correct Answer is 4.

Important Points

Excel offers 4 different workbook views.

• Normal view: This is the default Excel view and the one usually used.
• Page Layout view: This view is used to fine-tune a worksheet before printing,
• Page Break Preview view: This view shows where the page breaks will occur if the worksheet is printed.
• Full-Screen view: The worksheet stays in the view it was already in, but toolbars are hidden so that the worksheet fills the entire screen.

RAID (redundant array of independent disks) is a data storage virtualization technology that combines multiple physical disk drive components into a single logical unit for the purposes of data redundancy, performance improvement, or both.

The correct answer is Microchip

Key Points

• The computer's CPU (Central Processing Unit) manufactured on a single IC (Integrated Circuit) is called a microprocessor. It is also known as a Microchip.

• A digital computer with a single microprocessor that works as a CPU is called a microcomputer.

• It is based on the register, a programmable, clock-controlled, multipurpose electronic circuit that gets binary instructions from a storage device called memory, gets binary data as input, and executes data as per the instructions, and delivers results as output.

• The microprocessor holds millions of small components like diodes, registers, and transistors that work together.

• A microchip is a generic term for tiny electronic circuits built into tiny and sealed boxes with metallic pins.

• The electronic circuit can be both analog and digital. A microprocessor is a generic term for a special kind of digital electronic circuit that is embedded into a microchip.

• Hence, a microprocessor which is the brain of the computer can also be called a microchip.