Question Discussion & Solution

The correct answer is Terabyte.

• Among the options, Terabyte represents the largest amount of data.

​Key Points

• The memory of a computer is usually measured in bytes.
• Tera-represents the fourth power of 1000.
• A Terabyte is more precisely defined as 1,024 gigabytes.
• 1 TB equals 1,024 gigabytes (GB).
• The storage capacity of a hard disc is measured in Megabytes, Gigabytes, and Terabytes.
   

Additional Information

• Bit is the smallest unit of memory.
• Bit is the short form of Binary digit.
• Half byte is known as nibble.
  • 1 Nibble = 4 bits.
  • 1 Byte = 8 bits.
  • 1 Kilobyte = 1024 Bytes.
  • 1 Megabyte = 1024 Kilobyte.
  • 1 Gigabyte = 1024 Megabyte.
  • 1 Terabyte = 1024 Gigabyte in binary or (1 Gb in decimal).

The correct answer is Ctrl + D.

Key Points

• Use the Ctrl+D keyboard shortcut to quickly summon the Font dialog box.
• The best benefit of the Font dialog box is its Preview window, at the bottom.
• This window shows you exactly how your choices affect text in your document.
• The Font names +Body and +Heading refer to the fonts selected by the current document theme.

Additional Information

• Important Shortcut keys:
  • 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+]
  • Center the text - Ctrl+E.
  • Align the text to the left - Ctrl+L

The correct answer is Virtual memory.

Key Points

• Most modern operating systems employ a method of extending RAM capacity, known as "virtual memory".
• A portion of the computer's hard drive is set aside for a paging file or a scratch partition, and the combination of physical RAM and the paging file form the system's total memory. 
• When the system runs low on physical memory, it can "swap" portions of RAM to the paging file to make room for new data, as well as to read previously swapped information back into RAM.
• Excessive use of this mechanism results in thrashing and generally hampers overall system performance, mainly because hard drives are far slower than RAM.

Additional Information

• RAM - Random-access memory is a form of computer memory that can be read and changed in any order, typically used to store working data and machine code. 
• ROM - Read-only memory is a type of non-volatile memory used in computers and other electronic devices.
• Types of ROM:
  • MROM (Masked ROM) 
  • PROM (Programmable Read-Only Memory) 
  • EPROM (Erasable and Programmable Read-Only Memory) 
  • EEPROM (Electrically Erasable and Programmable Read-Only Memory)

The correct answer is Joint Photographic Experts Group.

Key Points

• JPEG stands for Joint Photographic Experts Group.
  • It is a computer graphics file format.
  • JPEG is a lossy compression method widely used for digital photographs.
  • In JPEG, the image is compressed to make a smaller file.
  • Compression results in a loss of quality, however, so it is usually undetectable.
  • JPEG files are widely used on the Internet, and JPEG is a popular digital camera format, making it ideal for non-professional printing and web use.
  • JPEG format is best for web images, non-professional printing, e-mail, PowerPoint.
  • The extensions ".jpeg" and ".jpg" are used for JPEG files.

Additional Information

• PNG (Portable Network Graphics) files are a lossless picture format that was created to replace and improve upon the gif format.
• GIF files (Graphics Interchange Format) are used for web graphics and can be animated and transparent.
• BMP (Bitmap Image File) is a file format designed by Microsoft for Windows that does not compress or lose information, allowing images to have very high quality while simultaneously having very large file sizes.

The correct answer is Internet Protocol.

Key Points

• The Internet Protocol (IP) is the principal communications protocol in the Internet protocol suite for relaying datagrams across network boundaries.
• Its routing function enables internetworking and essentially establishes the Internet.

• IP has the task of delivering packets from the source host to the destination host solely based on the IP addresses in the packet headers.

Additional Information

• Common Internet protocols include:-
  • TCP/IP (Transmission Control Protocol/Internet Protocol)
  • UDP/IP (User Datagram Protocol/Internet Protocol)
  • HTTP (HyperText Transfer Protocol)
  • FTP (File Transfer Protocol). TCP/IP is a stream protocol.