题目内容

WhichofthefollowingareformsofgigabitEthernetthatrequiretheuseoffiberopticcables?()

A. 1000Base-CX
B. 1000Base-TX
C. 1000Base-SX
D. 10Base-T
E. 1000Base-T
F. 1000Base-LX

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Which of the following is a valid Class A TCP/IP address?()

A. 10.20.210.200
B. 99.55.44.255
C. 127.10.52.45
D. 172.24.168.20

Whenintegratingamediaserverintoahometheater,whichofthefollowingtermsBESTdescribesthetechnologyusedtoprotecttheinterestofcopyrightholders(e.g.multimediacontent)?()

A. DigitalRightsManagement(DRM)
B. MPEGLayer-3(MP3)
C. InternetKeyExchange(IKE)
D. ContentManagementSystem(CMS)

Whichofthefollowingistheprimarypurposeofimpedancematchedvolumecontrol?()

A. Maintainsproperspeakerphase
B. Protectstheamplifierfromdamage
C. Protectsthedigitalsystemsfromdamage
D. Amplifiesthespeakersignal

Which of the following is an invalid IPv4 address?()

A. 225.0.0.1
B. 254.254.0.0
C. 256.0.0.4
D. 224.2.1.4

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