Networks and Topologies
What is a Physical Topology Diagram?
Physical topology diagrams illustrate the physical location of intermediary devices and cable installation.
What is a LAN?
A LAN is a network infrastructure that spans a small geographical area.
What is a firewall?
A firewall is a system, or group of systems, that enforces an access control policy between networks.
What is a VPN?
A VPN is a private network that is created over a public network, usually the internet
Who uses Medium to Large Networks?
Medium to Large Networks are used by coporations and schools.
What is a Logical Topology Diagram?
Logical topology diagrams illustrate devices, ports, and the addressing scheme of the network.
What is a WAN?
A WAN is a network infrastructure that spans a wide geographical area.
What is a Demilitarized Zone?
A demilitarized zone (DMZ) is a firewall design where there is typically one inside interface connected to the private network, one outside interface connected to the public network, and one DMZ interface.
What does NTP stand for?
Network Time Protocol
What does IDS stand for?
Intrusion Detection System
What is a Physical Port?
A connector or outlet on a networking device where the media connects to an end device or another networking device.
WANs are typically managed by what?
Service providers (SPs) or Internet Service Providers (ISPs).
What is a host-based firewall?
A PC or server with firewall software running on it.
What is an ACL?
An Access Control List is a series of commands that control whether a device forwards or drops packets based on information found in the packet header.
Intrusion prevention System
What is an interface?
It is specialized ports on a networking device that connect to individual networks.
LANs interconnect what type of Devices?
End Devices
Zone-based policy firewalls (ZPFs) use what concept to provide additional flexibility?
Zone-based policy firewalls use the concept of zones to provide additional flexibility.
What is Netflow?
Netflow provides statistics on packets flowing through a Cisco router or multilayer switch.
How do Network infrastructures vary?
What are the 3 different types of Network Media?
Wireless, LAN, WAN media.
Which is faster WANs or LANs?
LANs are faster
What is a Packet filtering (Stateless) firewall?
Stateless firewalls use a simple policy table look-up that filters traffic based on specific criteria.
What does Port Mirroring do?
It is typically software that captures packets entering and exiting the network interface card.
What do Syslog Servers do?
Syslog Servers notify administrators with detailed system messages.