ITEC Chapter 4 - Networking

What are characteristics of fiber optic lines?

-Made of one or thousands of fibers -High-speed transmission

What's a Media Access Control (MAC) address?

-Switches ID devices in the network by this -Every device on the network has a Network Interface Card (NIC) -Every NIC has a unique MAC address

What are the characteristics of microwaves?

-Used to transmit internet signals to and from satellites -Used to transmit internet signals where wires may be impractical -Capable of transmitting internet signals over long distances

What's true about how IP addresses are determined? 1. They're structured and assigned by a service called a Dynamic Host Configuration Protocol 2. A home wifi network will have the same IP address assigned to it every time someone logs on 3. An IP address is determined by the network on which it's hosted 4. All hosts on the same network share the same established network address, but are assigned a unique host number

1, 3, and 4

Match the parent company with the subsidiary: 1. AT&T 2. T-Mobile 3. America Movil Cricket Wireless MetroPCS TracFone

1. Cricket Wireless 2. MetroPCS 3. TracFone

What are the steps of how circuit switching works when placing a landline based on phone call?

1. Pick up receiver - opens a connection to the local switch 2. Dial a number - switch connects to other switches along PSTN 3. When call is received, will remain open 4. When you hang up, circuit is disconnected, and switches and wire paths are free for others to use

What are the characteristics of a base transceiver station?

1. Sends phone signals to the cellular provider's MSS 2. Connected to a cell tower 3. Broadcasts weak microwave signals to create "cells" of mobile coverage

What are the steps that happen after you hit "send" on your phone?

1. Signal is sent (weak microwaves) to a cell tower 2. The cell tower's base transceiver station sends the signal to your MSS 3. Your MSS sends the signal to the receiver's MSS 4. The receiver's MSS locates the receiver's phone and sends the signal to the receiver's BTS and associated cell tower

WPA2 stands for Wi-Fi Protected ___ 2:

Access

A local ___ network (LAN) is a collection of computers that are connected in a small area:

Area

Remote access connections must be secured using authentication and encryption software. ___ software confirms the identity of the user or computer system:

Authentication

A popular peer-to-peer file sharing protocol that allows users to share software, movies, and other files is ___:

BitTorrent (can be illegal)

If you want to connect several devices in your home network to the same internet signal, you'll need a ___ connection:

Broadband

Signal that has enough bandwidth to allow multiple computers to be connected to the same router is called a ___ signal:

Broadband

Fastest growing internet service provider media is:

Cellular

Used by the PSTN, ___ switching creates a dedicated physical path to send and receive information:

Circuit

In a server-based network, the individual computers and devices are called ___:

Clients

Switch:

Connects devices within a network

Router:

Connects two networks

Modem:

Converts analog signals into digital signals, and signals into analog signals

Often IP addresses are structured and assigned by a service called a ___ or by a network administrator:

DHCP

The tech that allows for the electronic communication of business-oriented transactions and info. between people and organizations is called electronic ___ interchange:

Data

Most routers are designed to broadcast their waves slightly ___:

Down

What tech allows for the electronic communication of business-oriented transactions and info. between people and organizations?

EDI

___ is the most popular networking media for LANs:

Ethernet

Most individuals can create their own IP address. T or F?

False

A public wifi site is referred to as a ___:

Hotspot

MAC address:

IDs a device within a network

The largest WAN on earth is the...:

Internet

What three items are required to set up a home Wi-Fi network?

Internet signal, modem, and router

A collection of computers that are connected in a small area like an office, college campus, or in your home is called a ___:

LAN

A switch distinguishes between various devices within a network by their ___ addresses:

MAC

Broadband is measured in:

Mbps

What's the most important part of any cellular network? What does it do?

Mobile switching station; it locates cellular devices, assigns frequencies, and transmits signals to the correct sites

"Modem" stands for:

Modulator-Demodulator

Telephone wires have ___ bandwidth than a tv (coaxial) cable:

More

IP addresses are assigned by the internet corporation for assigned names and ___ (ICANN):

Numbers

Unlike circuit switching, data transfer with ___ doesn't rely on a dedicated physical path:

Packet switching

After your phone's analog-digital converter chip changes the sound of your voice to a digital signal, the signal is enhanced by a digital signal ___:

Processor

Wi-Fi waves are basically ___ waves:

Radio

When it's necessary to allow outside connections to a LAN, it's referred to as ___ access:

Remote

Your ___ can provide hardware protection for your home network where it connects to your ISP's network, just as ISP networks have firewalls where they connect to the internet:

Router

A signal transmitted every few seconds by a wireless router so that user's computers can find and ID the wifi hotspot is called a(n) ____:

SSID

A computer that provides resources and services to client computers is a ___:

Server

The device in a network that keeps track of connected devices MAC addresses and is usually incorporated in a router is the ___:

Switch

Connecting two computers so that files like MPEGs, JPEGs, and MP4s can be moved directly from one computer to another is called ___:

Syncing

A VPN creates a secure connection between 2 computers. T or F?

True

IP addresses are assigned by the Internet Corporation for Assigned Names and Numbers (ICANN). T or F?

True

The BitTorrent protocol allows users to share large files over the internet. T or F?

True

When you purchase an internet service from an ISP, you receive the right to use their block of assigned addresses. T or F?

True

The original wireless network privacy standard for wi-fi was known as ___:

WEP

The wireless network privacy standard that was introduced in 2003 but was quickly replaced was known as ___:

WPA

WEP was replaced by the far more secure ___ protocol:

WPA2

What's WAN?

Wide area network; large organizations with many offices across the globe have individual LANs and each location needs to be connected using a WAN

WEP stands for ___ equivalent protocol:

Wired