Cyberpatriot Module 1

Network Media

*term-4Metal wires within cables* - Data is encoded into electrical impulses. *Glass or plastic fibers within cables* (fiber-optic cable) - Data is encoded into pulses of light. *Wireless transmission* - Data is encoded via modulation of specific frequencies of electromagnetic waves.

Network Interface Card (NIC)

A NIC physically connects the end device to the network.

Physical Port

A connector or outlet on a networking device where the media connects to an end device or another networking device.

Fault Tolerance

A fault-tolerant network is one that limits the number of affected devices during a failure. To combat this, it will allow packets to be sent through multiple pathways.

Security Options for Large Networks

Dedicated firewall systems - These provide more advanced firewall capabilities that can filter large amounts of traffic with more granularity. Access control lists (ACL) - These further filter access and traffic forwarding based on IP addresses and applications. Intrusion prevention systems (IPS) - These identify fast-spreading threats, such as zero-day or zero-hour attacks. Virtual private networks (VPN) - These provide secure access into an organization for remote workers.

Which of the following is the name for all computers connected to a network that participate directly in network communication?

Hosts (end devices)

A __________ provides access to users and end devices in a small geographical area.

LAN

Difference between *physical* topology diagrams and logical topology diagrams?

Physical topology diagrams illustrate the physical location of intermediary devices and cable installation Logical topology diagrams illustrate devices, ports, and the addressing scheme of the network, as shown in the figure

Interface

Specialized ports on a networking device that connect to individual networks. Because routers connect networks, the ports on a router are referred to as network interfaces.

A ___________ provides access to other networks over a large geographical area.

WAN

Peer-to-Peer Network

When many computers function as the servers and clients on the network.

Intermediary Devices

connect the individual end devices to the network 1) Wireless Router 2) LAN Switch 3) Router 4) Multilayer Switch 5) Firewall Appliance

An _________ provides secure and safe access to individuals who work for a different organization but require access to the organization's data.

extranet