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Q:

What is used by a search engine to find information?

  • 1
    Web crawling or web spider
  • 2
    Indexing
  • 3
    Searching
  • 4
    all of these
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Answer : 4. "all of these"
Explanation :

Used by a search engine to find information.

1. Web crawling and web spiders

2. Indexing

3. Searching

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