Which statement is true about Fast Link Pulses in Ethernet?
A.
They are used during collision detection.
B.
They are used only if the media type is optical.
C.
They are part of UniDirectional Link Detection.
D.
They are used during autonegotiation.
To make sure that your connection is operating properly, IEEE 802.3 Ethernet employs normal link
pulses (NLPs), which are used for verifying link integrity in a 10BaseT system. This signaling gives
you the link indication when you attach to the hub and is performed between two directly
connected link interfaces (hub-to-station or station-to-station). NLPs are helpful in determining that a link has been established between devices, but they are not a good indicator that your cabling is
free of problems.
An extension of NLPs is fast link pulses. These do not perform link tests, but instead are employed
in the autonegotiation process to advertise a device’s capabilities.
Reference. http://www.cisco.com/en/US/docs/internetworking/troubleshooting/guide/tr1904.html
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