Chapter 1 Exploring the Network Flashcards
What are the network infrastructure that contains three categories of network components?
1.2.1.1
Devices
Media
Services
What is an End Device?
1.2.1.2
A device that human use and interact with.
What is an Intermediary Device?
1.2.1.3
Intermediary devices interconnect end devices
Name what types of end devices?
1.2.1.3
Computers (work stations, laptops, file servers, web servers)
Network printers
VoIP phones
TelePresence endpoint
Security cameras
Mobile handheld devices
Name what type of Intermediary devices
1.2.1.3
Network Access (switches and wireless access points)
Internetworking (routers)
Security (firewalls)
What is a network medium?
1.2.1.4
Metallic wires within cables
Glass or plastic fibers (fiber optic cable)
Wireless transmission
What are the advantages and disadvantages of Copper cables?
1.2.1.4
Cheap easy to work with?
Distance is of cable is restricted to 100m, electrical interference affect the data signal.
What are the advantages and disadvantages of fiber cables?
1.2.1.4
Can transmitted faster data of longer distances
The cost of the cable is expensive
hard to work with
The size of the fiber is smaller than a human hair.
What are the advantages and disadvantages of Wireless?
1.2.1.4
Easy to setup
Can work a large distance
the cost is not expensive
Transmission is subject to interference
data can be intercepted
requires power to work.
What is a Local Area Network (LAN)
1.2.2.1
A network infrastructure that provides access to users and end devices in a small geographical area.
What is a Wide Area Network (WAN)
1.2.2.1
A network infrastructure that provides access to other networks over a wide geographical area.
What is a Metropolitan Area Network (MAN)
1.2.2.1
A network infrastructure that spans a physical area larger than a LAN but smaller than a WAN (e.g., a city). MANs are typically operated by a single entity such as a large organization.
What is the internet?
1.2.3.1
The Internet is a worldwide collection of interconnected networks (internetworks or internet for short), cooperating with each other to exchange information using common standards.
What is the intranet?
1.2.3.2
Intranet is a term often used to refer to a private connection of LANs and WANs that belongs to an organization, and is designed to be accessible only by the organization’s
What is the Extranet?
1.2.3.2
An organization may use an extranet to provide secure and safe access to individuals who work for a different organizations, but require company data.
