____ cable is preferred for ISDN cabling.
A) Twisted-pair copper wire
B) Fiber-optic
C) Coaxial
D) All of the above.
Correct Answer:
Verified
Q39: In the US, PRI consists of _
Q40: Frame relay typically uses the _ for
Q41: _ is intended as an alternative to
Q42: Which is not true about IDSL?
A)It enables
Q43: The essential communications contained in the Q.931
Q45: X.25 offers bandwidth up to 2.048 Mbps.
Q46: _ is the least universally available.
A)X.25
B)ISDN
C)frame relay
D)SMDS
Q47: When using the LMI protocol, the DLCI
Q48: One of the most promising _ projects
Q49: _ incorporates layered communications corresponding to the
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