Computer Knowledge Practice Question and Answer

Q:

Which printer prints data or images by spraying small droplets of ink at high speed onto the surface of the paper?

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  • 1
    Inkjet printer
    Correct
    Wrong
  • 2
    Laser Printer
    Correct
    Wrong
  • 3
    Dot matrix printer
    Correct
    Wrong
  • 4
    Drum printer
    Correct
    Wrong
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Answer : 1. "Inkjet printer"
Explanation :

1. Ink printers which are used to spray small droplets of ink on paper.

2. An inkjet printer is a computer accessory that prints text documents and photos on paper using tiny droplets of ink.

3. Color printing copies can be made using a conventional inkjet printer with a resolution of 1200 x 1440 dpi.

Q:

Which of the following is an open source (free to all) mobile OS?

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  • 1
    Wi-Fi
    Correct
    Wrong
  • 2
    Induction
    Correct
    Wrong
  • 3
    Infrared
    Correct
    Wrong
  • 4
    All of these
    Correct
    Wrong
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Answer : 4. "All of these"
Explanation :

An open source (free for all) low connectivity requirement.

- Wi-Fi

- Induction

- infrared

Q:

Which of the following devices is used to connect a computer to the internet through a phone line?

505 0

  • 1
    Modem
    Correct
    Wrong
  • 2
    Router
    Correct
    Wrong
  • 3
    Switch
    Correct
    Wrong
  • 4
    Firewall
    Correct
    Wrong
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Answer : 1. "Modem"
Explanation :

1. A modem is used to connect the computer to the Internet through a phone line.

2. A modem converts digital information from your computer into analog signals that can be transmitted over wires (and vice versa).

Q:

Following are the elements of a chart in MS Excel 2010:

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  • 1
    Chart Title, Legend, Data Labels
    Correct
    Wrong
  • 2
    Data Points, Data Series, Gridlines
    Correct
    Wrong
  • 3
    Value Axis, Category Axis
    Correct
    Wrong
  • 4
    All of these
    Correct
    Wrong
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Answer : 2. "Data Points, Data Series, Gridlines"
Explanation :

The elements of a chart in MS Excel 2010 include the following:-

1. Title: The title of the chart, which describes the topic or purpose of the chart.

2. Axis: Lines used to measure data on a chart.

3. Data Series: A group of data points on a chart.

4. Chart Area: The outer area of the chart, including the title, axes, and data series.

5. Legend: Labels used to identify data series on a chart.

6. Gridlines: Lines used to measure data on a chart.

7. Data Labels: Labels used to display the values of data points on a chart.

8. Data Table: A table used to display data from data series below the chart.

Q:

Which connectivity is required for the HotSpot internet connectivity?

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  • 1
    Wi-Fi
    Correct
    Wrong
  • 2
    Induction
    Correct
    Wrong
  • 3
    Infrared
    Correct
    Wrong
  • 4
    All of these
    Correct
    Wrong
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Answer : 1. "Wi-Fi"
Explanation :

A Hotspot is required for internet connectivity.

1. Dial-up is generally the slowest Internet connection and is obsolete these days.

2. This high-speed Internet connection is usually provided by telephone companies.

3. Wi-Fi (Wireless Fidelity) is a technology for WLAN (Wireless Local Area Networking) which requires "radio frequency" to transmit to devices.

4. Digital Subscriber Line (DSL-Digital Subscriber Line) service uses a broadband connection, which makes it faster than dial-up.

5. Cable service connects to the Internet through Cable TV.

6. Internet services are provided by mobile operators through mobile phone connections. 3G and 4G services are most commonly used with mobile phones and tablet computers.

Q:

Select the correct matching option from the table given below:

(1) Input Devices          (P) Trackball, Microphone, Keyboard

(2) Output Devices      (Q) Hard Disk Drive

(3) Storage Devices     (R) Monitor, Printer, Headphone

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  • 1
    1-P, 2-Q, 3-R
    Correct
    Wrong
  • 2
    1-Q, 2-R, 3-P
    Correct
    Wrong
  • 3
    1-P, 2-R, 3-Q
    Correct
    Wrong
  • 4
    1-Q, 2-P, 3-R
    Correct
    Wrong
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Answer : 3. "1-P, 2-R, 3-Q"
Explanation :

All the matches in the table given below are correct-

(1) Input Devices - Trackball, Microphone, Keyboard

(2) Output Devices - Monitor, Printer, Headphone

(3) Storage Devices - Hard Disk Drive

Q:

Following is the control groups in Animation Tab of Microsoft PowerPoint 2010:

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    Preview
    Correct
    Wrong
  • 2
    Animation
    Correct
    Wrong
  • 3
    Timing
    Correct
    Wrong
  • 4
    All of these
    Correct
    Wrong
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Answer : 4. "All of these"
Explanation :

1. The Animation tab of Microsoft PowerPoint 2010 contains a group of controls-

- Preview

- Animation

- Time

Q:

Which is an example of ECommerce Website?

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  • 1
    Twitter
    Correct
    Wrong
  • 2
    Facebook
    Correct
    Wrong
  • 3
    Amazon
    Correct
    Wrong
  • 4
    All of these
    Correct
    Wrong
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Answer : 3. "Amazon "
Explanation :

An e-commerce website is a website that allows the buying and selling of products or services online. There are many examples of e-commerce websites, which include:-

1. Amazon: Amazon is a leading e-commerce website that sells a wide variety of products across the world.

2. Flipkart: Flipkart is India's largest e-commerce website that sells electronics, clothing, books, and more.

3. eBay: eBay is an online marketplace where users can buy and sell products from each other.

4. Walmart: Walmart is a major retailer that sells products online through its website.

5. Target: Target is a major retailer that sells products online through its website.

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