What action represents one of the greatest vulnerabilities to internal networks?
a. Personnel that continue to misuse the network by surfing the web.
b. Access to the network through backdoors left by system administrators.
c. Network-connected desktop systems with modems that make calls to the public-switched network.
d. Network-connected computer systems with modems that make calls to and accept calls from the public-switched network.
Answer: D
CDC
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