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File Extensions — Computer Questions & Practice

Practise 40 File Extensions questions from Computer for competitive exams such as UPSC, Banking, SSC and Railway. Read the worked questions below, check every answer with an explanation, and track what you get wrong.

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Practice questions on File Extensions — with answers

Try each question first, then open the answer. Explanations are included.

1. What type of file is indicated by the extension '.docx'?

  1. AGraphics Interchange Format image/animation file
  2. BMPEG Audio Layer 3 audio file
  3. CComma-Separated Values file
  4. DMicrosoft Word Document
Show answer

Answer: D

'.docx' indicates a Microsoft Word Document.

2. What type of file is indicated by the extension '.xlsx'?

  1. ACompressed archive file
  2. BMicrosoft PowerPoint Presentation
  3. CMicrosoft Excel Spreadsheet
  4. DMPEG Audio Layer 3 audio file
Show answer

Answer: C

'.xlsx' indicates a Microsoft Excel Spreadsheet.

3. What type of file is indicated by the extension '.pptx'?

  1. AComma-Separated Values file
  2. BMicrosoft PowerPoint Presentation
  3. CDisc image file
  4. DPlain Text file
Show answer

Answer: B

'.pptx' indicates a Microsoft PowerPoint Presentation.

4. What type of file is indicated by the extension '.pdf'?

  1. AHyperText Markup Language file (webpage)
  2. BPortable Document Format file
  3. CMicrosoft Word Document
  4. DPortable Network Graphics image file
Show answer

Answer: B

'.pdf' indicates a Portable Document Format file.

5. What type of file is indicated by the extension '.txt'?

  1. APlain Text file
  2. BMicrosoft Word Document
  3. CHyperText Markup Language file (webpage)
  4. DCompressed archive file
Show answer

Answer: A

'.txt' indicates a Plain Text file.

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