User guide

User Guide 165
cable segment
A section of network cable separated by hubs, routers, or bridges to create a
subnet.
cascade
A command that arranges windows so that they are overlapped, with the active
window in front.
cascading
Connecting hubs with 10BASE-T cable; sometimes requires a crossover cable.
Category 3 cabling
A 10BASE-T unshielded twisted-pair cabling type commonly used in today’s
10Mbps Ethernet networks.
Category 5 cabling
A higher grade of unshielded twisted-pair cabling required for networking
applications wich as 100Mbps Fast Ethernet.
CBC
See
cipher block chaining .
CD-ROM (Compact Disc Read-Only Memory)
A disk on which data is stored.
certificate
An electronic document attached to a public key by a trusted third party, which
provides proof that the public key belongs to a legitimate owner and has not
been compromised.
certificate authority (CA)
A trusted third party (TTP) who creates certificates that consist of assertions on
various attributes and binds them to an entity and/or to their public key.
certificate revocation list (CRL)
An online, up-to-date list of previously issued certificates that are no longer
valid.
certification
Endorsement of functionality by a trusted entity.
Challenge Authentication Protocol (CHAP)
A session-based, two-way password authentication scheme.
channel
A communications path between two computers or devices.
checkbox
A dialog box option that is not mutually exclusive with other options. Selecting
a checkbox inserts or removes an X or a checkmark; clearing a checkbox removes
it.