44.
Spanning Tree Protocol (STP)
802.1d is used to prevent
routing loops. In Cisco Catalyst
5000 series switches, use BDPUs
(Bridge Protocol Data Units) to
determine the spanning tree
topology. STP uses a Tree
Algorithm (STA) to prevent
loops, resulting in a stable
network topology.
45. IPX
address consists of 32-bit
network address and 48-bit host
address. The network portion of
the address is configured by the
administrator. The host part of
the address is the 48-bit MAC
address on the network interface
card of the node.
46. ISL,
802.1Q are the VLAN trunking
protocols associated with Fast
Ethernet. The VLAN trunking
protocol defined by 802.10 is
associated with FDDI. LANE (LAN
Emulation) is associated with
ATM.
47.
Compression algorithms supported
by Cisco IOS are:
HDLC - STAC;
LAPB - STAC,
Predictor;
PPP -
STAC, Predictor, MPPC
Frame-Relay - STAC, FRF.9
PPP
is supported by STAC, Predictor,
and MPPC. Compression algorithms
supported by Frame-Relay for
payload compression are STAC,
and FRF.9.
