What transmission medium do ALL DSL services use?
A) One-pair voice-grade UTP.
B) Two-pair voice-grade UTP.
C) One-pair data-grade UTP.
D) Two-pair data-grade UTP.
E) Different DSL services use different transmission media.
Correct Answer:
Verified
Q57: Which light wavelength dominates use in LAN
Q58: Compared with UTP,optical fiber is _ expensive
Q59: A popular type of optical fiber connector
Q60: Lower-wavelength light dominates in optical fiber because
Q61: Modal dispersion limits transmission distance in _.
A)multimode
Q63: Single mode fiber distance is limited primarily
Q64: Low-speed leased lines use _ transmission lines.
A)one-pair
Q65: Businesses can select multimode fiber to transmit
Q66: Compared with single-mode fiber,multimode fiber has _
Q67: Providing service is called _.
A)provisioning
B)signaling
C)access lining
D)loading
E)All of
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