A computer connected to the Internet that asks for data is a(n) ________

What is the effect of this transformation if a term occurs in one docu- ment? In every document?

Consider a document-term matrix, where tfij is the frequency of the i
th word
(term) in the jth document and m is the number of documents. Consider
the variable transformation that is defined by
where dfi is the number of documents in which the i
th term appears and is
known as the document frequency of the term. This transformation is
known as the inverse document frequency transformation.

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Distinguish between packet-filtering firewalls and application-level gateways.

What will be an ideal response?