Question Discussion & Solution

The correct answer is VDU.

Key Points

• Visual Display Unit (VDU): 
  • Visual Display Unit is an Output Device that displays all work is done and images on its screen.
  • It is also called a Monitor. After processing the input, the result is shown on the Monitor.
  • The three most common specifications about the quality of monitors are Dot Pitch, Resolution, and Refresh Rate.
  • There are many types of monitor technologies are available like CRT (Cathode Ray Tube) monitors, LCD (Liquid Crystal Display) monitors, LED (Light Emitting Diode), OLED (Organic Light Emitting Diode), etc.

Important Points

• Keyboard: The keyboard is one of the main Input Devices used in a computer. It is used to enter text and numeric data in a computer system. 
• Mouse: It is also called a Pointing Device which is used to point to the things on the monitor screen. It is an Input Device that was invented by Douglas Engelbert.
• Light Pen: A light pen is an Input Device, similar to a mouse. It is used to directly write and draw any figure on the computer screen.

Additional Information

The correct answer is Ctrl+N.

Key Points

• Ctrl+N is the shortcut key used to open a New Document in the MS office.
• In the new document new worksheet is opened in the same window. 

Additional Information

• Some important shortcuts used in MS Excel:
  • Ctrl + O Open an existing workbook.
  • Ctrl + S Save the active workbook.
  • F12 Save the active workbook under a new name, displays the Save as dialog box.
  • Ctrl + W Close the active workbook.
  • Ctrl + C Copy the contents of the selected cells to Clipboard.
  • Ctrl + X Cut the contents of the selected cells to Clipboard.
  • Ctrl + V Insert the contents of the Clipboard into the selected cell(s).

The correct answer is Programmable read-only memory

Key Points

• PROM stands for Programmable Read Only Memory.
• Read only memory (ROM) is a type of memory that is used in electronics and computers.
• It is a non-volatile memory, that is, information stored in such a memory is permanent and cannot be changed.
• Other two types of ROM are
  • Electrically Erasable Programmable ROM (EEPROM)
  • Erasable Programmable ROM (EPROM)

Additional Information

• Primary memory can be divided into RAM (Random Access Memory) and ROM (Read Only Memory)

The correct answer is All of the above.

Key Points

• Social engineering is the term used for a broad range of malicious activities accomplished through human interactions.
• It uses psychological manipulation to trick users into making security mistakes or giving away sensitive information. 
• A sniffing attack or a sniffer attack, in the context of network security, corresponds to theft or interception of data by capturing the network traffic using a sniffer.
• Spoofing is the act of disguising a communication from an unknown source as being from a known, trusted source. 

Additional Information

Some Common Hacking Techniques are:

• Phishing
• Bait and Switch Attack
• Key Logger
• Denial of Service (DoS\DDoS) Attacks
• ClickJacking Attacks
• Cookie Theft 

The correct answer is Ctrl + Shift + <

Key Points

• Ctrl + Shift + < 
  • It is used to decrease the font to the next smaller point size available in the Font size list box in Microsoft Word.

Additional Information

• Ctrl + Shift + >
  • It is used to increase the font to the next smaller point size available in the Font size list box in Microsoft Word.
• Ctrl + Shift + +
  • It is used to apply superscript.
• Ctrl + Shift + F
  • It is used to open the Font window to change the font.

Important Points

• You can access the Fonts dialog box or use the tools in the Home tab in MS Word.
• The list contains font size in points 8, 9, 10, 11, 12, 14, 16, 18, 20, 22, 24, 26, 28, 36, 48 and 72.
• Word supports font size b​etween 1 and 1638.