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Hardware or software installed to block unauthorised access to a network is a:

AFirebreak
BFirewall
CFireside
DFirelight
Answer & Solution
Correct answer: B. Firewall
1. It stands between the network and outsiders. 2. Intranets sit behind one. 3. It is a firewall. _Source: OpenStax Introduction to Business, Chapter 13, Using Technology to Manage Information._
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