A company wants to have a data store on AWS that can be used to store a large number of log files. Apart from this the service should have the following capabilities
Range searches
Term boosting
Faceting
Which of the below can be used as the data store?

Answer options:

A.AWS S3
B.AWS CloudSearch
C.AWS Redshift
D.AWS DynamoDB

Answer - B
The AWS Documentation mentions the following
You can use Amazon CloudSearch to index and search both structured data and plain text. Amazon CloudSearch features:
Full text search with language-specific text processing
Boolean search
Prefix searches
Range searches
Term boosting
Faceting
Highlighting
Autocomplete Suggestions
Since the documentation clearly gives the features of this product , all other options are incorrect
For more information on what is cloudsearch, please refer to the below URL
https://docs.aws.amazon.com/cloudsearch/latest/developerguide/what-is-cloudsearch.html