A(n) ____ is a hardware or software device that restricts access between the computer network and the Internet, or between a computer and other computers, protecting the computer behind it.

A. safeguard
B. encryptor
C. firewall
D. SFTP


Answer: C

Computer Science & Information Technology

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Which authentication mechanism includes a Key Distribution Center?

A. X.400 B. X.500 C. Kerberos D. LDAP

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Transaction processing (TP) systems _____.?

A. ?provide job-related information to users at all levels of a company B. ?simulate human reasoning by combining a knowledge base and inference rules that determine how the knowledge is applied C. ?process data generated by day-to-day business operations D. ?include email, voice mail, fax, video conferencing, word processing, automated calendars, database management, spreadsheets, and integrated mobile computing systems

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Answer the following statement(s) true (T) or false (F)

A native VLAN mismatch occurs when two access ports that are connected to each other are both tagging traffic with different VLAN IDs.

Computer Science & Information Technology