Module 2.2 Flashcards
To support compatibility with hosts still equipped with 10 Mbps Ethernet interfaces, Fast Ethernet introduced an _____________protocol to allow a host to choose the highest supported connection parameters (10 or 100 Mbps and half or full duplex)
autonegotiation
_______________ Ethernet specifies that a node should transmit regular electrical pulses when it is not transmitting data to confirm the viability of the link.
10BASE-T
10Base-T Cables
UTP Cat 6
F/UTP Cat 6A
S/FTP Cat 7
40GBase-t Cables
S/FTP Cat 8
Cat 6 distance
55m or 180ft
Cat 6a Distance
100m or 328ft
Cat 7
100m or 328ft
Cat 8 Distance
30m or 100ft
___________ Ethernet is the mainstream choice for new installations of access networks; that is, cabling to connect client workstations to a local network.
Gigabit
________________ Ethernet (10 GbE) multiplies the nominal speed of Gigabit Ethernet by a factor of 10. Because of the higher frequencies required, 10 GbE can only run at reduced distances over unshielded twisted pair
10 Gigabit
Longer runs require higher categories of cable with some type of _____________
shielding
Twisted pair is a type of copper cable that has been extensively used for telephone systems and data networks. One pair of insulated wires twisted together forms a balanced pair. The pair carry the same signal but with different polarity; one wire is _______, and the other is _______.
positive / negative
Copper twisted pair cabling with screening and shielding elements for individual wire pairs and/or the whole cable to reduce interference.
STP
___________ cable has one thin outer foil shield around all pairs
Screened
_____________ is usually designated as screened twisted pair (ScTP) or foiled/unshielded twisted pair (F/UTP), or sometimes just foiled twisted pair (FTP).
Screened cable
