Cable Issues Flashcards
What’s the first 2 things to check on a cable?
Cable connectors, then wiring arrangement
What 2 settings would you check for issues on a transceiver? (on a NIC)
1) speed setting
2) duplex setting
What two things can aggravate crosstalk?
1) using wrong type cable
2) mis-matching wire pairs (split pairs)
What security solution can affect latency?
Auditing
What is jitter?
What 3 things can affect it?
What type of communication is particularly susceptible?
Jitter is when data-flow isn’t consistent.
1) Network congestion
2) Timing drift
3) Route changes
real-time communication (IP Telephony) is particularly susceptible
Which version of Ethernet introduced Collision detection?
Ethernet II
What fault condition is caused if wires connect from one cable into another that does not match the resistance rating?
Open Impedance Mismatch (echo)
Split-pairs cause problems for lines that use high-data rates - true or false?
True
If the TX/RX is reversed what is the symptom?
Connection just doesn’t work!
For fibre, what are the two issues found with SFP/GBIC tranceivers?
cable mismatch and bad receiver
what can cause wavelength issues, attenuation and db loss?
fibre cable type mismatch between SFP/GBIC connectors
What must you be aware of regarding the physical specifications when installing fibre cables?
Bend Radius Limit specification
