Online worksheet ยท 2 of 4

A search engine uses an index - Online practice 2

Read the information, then answer the questions. An adult may read the instructions aloud. Show your working where asked.

Read before answering

Paper index snapshot: A: river map; B: bridge model; C: bridge history. Query: 'bridge model'. In this SIMPLE model, a result must contain BOTH query words in its indexed keywords. Known limit: a new relevant page D has not yet been indexed. Real search systems are more complex. An index is not necessarily a fresh reading of every page.

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  1. Which indexed page matches both words of 'bridge model' in this model?
  2. Why might the result for 'bridge model' be incomplete or out of date?
  3. Would finding page B prove all its claims true?

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