networking chapter 1

What is the maximum speed and length for a Category 6 cabling?

1000Mbps (1 gigabit) up to 100 meters.

What is a VPN, and how does it protect the data transferred over a wireless network?

A VPN is a Virtual Private Network and it establishes a secure network connection and is a way to protect your LAN's data from being observed by outsiders. A VPN enables a remote or mobile user to access the network as if they were actually physically at the network. The VPN connection is encrypted, providing privacy for the data packets being transmitted.

What is a hotspot?

A limited geographic area that provides wireless access for the public.

MAN

A network of users that share computer resources across a metropolitan area

LAN

A network of users that share computer resources in a limited area

WAN

A network that connects local area networks across large geographic area

What does RJ-45 represent?

An 8-pin modular connector for twisted-pair ethernet

How does NAT (network address translation) help protect outsider to computers in the home network?

By translating the private IP address to a public address for routing over the internet

Name six issues that should be considered when planning a home network?

Data speed, Cost, Ease of Implementation, Appearance, Home Access, Public Access

Cite the three advantages of a wired network.

Faster network data transfer speeds (within the LAN). Relatively inexpensive to setup. The network is not susceptible to outside interference.

What information is not included in an ethernet frame?

Frame size

What do the link lights on a hub represent?

Indicates that the transmit and receive pairs are properly aligned.

Define the term Topology.

Is the network architecture used to interconnect the networking equipment

Why is checking the lights of a networking device that connects to the ISP important?

Link Verification will typically appear as a Lit Link Light. The presence of a link light indicates that the transmit and receive pairs are properly aligned and the connected devices are communicating. Absence of the light indicates a possible cabling or hardware problem.

Expand the Acronym MAC.

Media Access Control

Expand the Acronym NIC

Network Interface Card

What does it mean for a wireless networking device to be Wi-Fi compliant?

That the device has been tested by the Wi-Fi Alliance (Wireless Fidelity) and is certified for compliance with 802.11x wireless standards.

What is the purpose of the SSID, and what can the network administrator do to protect the network from hackers who might have learned the SSID?

The purpose of the SSID is to identify your wireless network and is used by your access point or wireless router to establish an association. The network administrator can change it periodically and turn off broadcasting it in the device's menu.

A disadvantage of the Token Ring system is that if an error changes the token pattern, it can cause the token to stop circulating. This can be eliminated by adding which of the following?

Token Ring Hub

Cite three advantages of a wireless network.

User mobility, Simple installations, No cables

What are the seven layers of the OSI model?

physical, data link, network, transport, session, presentation, application