Domain 6: Networks Flashcards
Permanent Virtual Circuit (PVC)
Connection between endpoints where carrier configs routes, speeds, etc.
Switched Virtual Circuit (SVC)
Dynamically configed circuit routes when circuit is used. Less expensive.
Layer 2 Forwarding (L2F)
Created by cisco. Tunnels that don’t require encryption. Mostly Dialup. Port 1701
IPSEC IKE use
exchanging symmetric key
IPSEC AH
Sender authentication & integrity
IPsec ESP
“Encrypts the packet.”
IPsec Security Association
SA. Agreed-upon symmetric algorithm
Bastion hosts
Hardened and permit external access. aka DMZ hosts
MAC limiting
Max number of MAC addresses that can be learned on a specific interface or all interface.
SPI
Stateful Packet Inspection
Clipping level
Level above baseline that generates an alarm
IDS/IPS Behavior based detection
Monitoring deviations from baseline
IDS/IPS Signature based detection
Monitors based on previously determined signatures
IDS/IPS Anomaly-based detection
Behavior based with automated baseline adjustment
IDS/IPS Heuristic based detection
Learning system that uses algorithms to make decisions. Can be inaccurate and fast.
Yagi antenna
Directional antenna with multiple rods. Can have high directionality and gain.
Traffic shaping
Prioritizes packets based on traffic profile.
F/FTP & S/FTP
Shielded twisted pair. F is foil. S is braided shield.
Baseband
One way at a time. Occupies entire media.
Broadband
Multiple signals on single media.
