A(n)________ blocks unauthorized access to a network.
a. firewall
b. modem
c. ONT
d. switch
a. firewall
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QPSK uses four signal states that are ____ degrees out of phase to carry four signal values.
A. 30 B. 60 C. 90 D. 180
Match the following terms to their meanings:
I. Program that intentionally harms your computer A. spyware II. Computer that has malware installed B. virus definition III. Software that collects personal information C. Trojan horse IV. A program that disguises itself as a legitimate program D. malware V. Information needed by the antivirus program to find E. infected and remove a virus
A wall outlet is typically _______ AC volts
Fill in the blank(s) with correct word
SONET is normally associated with which of the following?
A. Point to point B. Point to multipoint C. Ring D. Bus