Module 13 Quizlet

Integrated Router

A home network is a small LAN with devices that usually connect to an __________ ______ and to each other in order to exchange information. The router is connected to the internet, as shown in the figure. Most likely, the home router is equipped with both wired and wireless capabilities. Wireless technology offers many advantages compared to traditional wired networks.

The CSMA/CA

A student is attempting to access an 802.11n wireless network. What method is used to manage contention-based access on this wireless network?

The Ethernet Protocol

Although many home network devices support wireless communications, there are still a few applications where devices benefit from a wired switch connection that is not shared with other users on the network. The most commonly implemented wired protocol is the. . .

Different types of wiring media.

An Ethernet LAN can connect devices using many. . .

Testing wireless LAN devices from different manufacturers.

An organization, known as the Wi-Fi Alliance, is responsible for. . .

Household functions will rely on the network to provide connectivity and control.

As the new technologies come on the market, more and more. . .

Wireless Network Functionality

Because of the ever-increasing number of things that have the capability of connecting to the internet using wireless technologies, most home networks include some type of. . .

LAN Switch Ports

By default, the wireless devices are on the same local network as the devices that are physically plugged into the. . .

Ethernet Patch Cable

Directly connected devices use an ________ _____ _____, usually unshielded twisted pair. These cables can be purchased with the RJ-45 connectors already installed, and they come in various lengths.

Legitimate Clients

Disabling SSID broadcasting can make it more difficult for __________ _______ to find the wireless network.

Request to Send (RTS)

During the reservation process, what does the client send to the AP to reserve a channel?

Wired LAN Connection

Ethernet uses a suite of protocols that allow network devices to communicate over a. . .

This is False

If you have devices on your wireless network that are using a variety of different 802.11 standards, then you should set your network to the highest standard to get the best throughput.

Shared Media

In a _______ ______ Ethernet wired network, collisions occur when two or more devices attempt to send messages on the network at the same time. Ethernet protocols detect the collisions, and all devices stop transmitting for a period of time in order to ensure that there is no additional contention for the media.

Desktop computers, Gaming systems, Smart TV systems, Printers, Scanners, Security cameras, Telephones, & Climate control devices.

In addition to an integrated router, there are many different types of devices that might be connecting to a home network, as shown in the figure. Here are a few examples:

Radio antenna and a built-in wireless access point.

In addition to the wired ports, many home routers include a:

APs

Multiple ___ can function in close proximity to one another as long as they use different channels for communication.

There are dozens of devices that rely on network connectivity.

Not long ago, home networks consisted of a desktop PC, a modem for internet, and perhaps a printer but in the homes of today, . . .

Anytime & Anywhere Connectivity

One of the main advantages of wireless is the ability to provide. . .

802.11

Other technologies that use the 2.4 GHz and 5 GHz bands are the modern wireless LAN technologies that conform to the various IEEE _______ standards.

Powerline

Recently constructed homes may have Ethernet jacks already wired in the walls of the home. For those homes that do not have UTP wiring, there are other technologies, such as _________, that can distribute wired connectivity throughout the premises.

Ethernet Ports & Internet Port

Small business and home routers typically have two primary types of ports:

Consumer Products

Some types of electromagnetic waves are not suitable for carrying data and are regulated by governments and licensed to various organizations for specific applications. Certain areas of the spectrum have been set aside to allow public use without the restriction of having to apply for special permits. These unlicensed sections of the spectrum are incorporated into ________ ________, including the Wi-Fi routers found in most homes.

WLAN Environment

The IEEE 802.11 standard governs the. . .

different network

The Internet port is the only port that is on a _________ _______ in the default configuration.

Network mode, Network Name (SSID), Standard Channel, SSID Broadcast

The Packet Tracer Basic Wireless Settings interface is shown in the figure. Wireless routers using the 802.11 standards have multiple settings that have to be configured. These settings include the following:

Modility, Scalability, Flexibility, Cost Savings, Reduced Installation Time, & Reliability to Harsh Environments.

The benefits of wireless LAN technology include the following:

2.4 GHz and 5 GHz frequency ranges

The wireless technologies most frequently used in home networks are in the unlicensed. . .

Channels

These are created by dividing up the available RF spectrum. Each of these is capable of carrying a different conversation, as shown in the figure.

Fiber-Optic Cable

These cables can be either glass or plastic with a diameter about the same as a human hair and it can carry digital information at very high speeds over long distances. These cables have a very high bandwidth, which enables them to carry very large amounts of data.

Ethernet Ports

These ports connect to the internal switch portion of the router. These ports are usually labeled "Ethernet" or "LAN", as shown in the figure. All devices connected to the switch ports are on the same local network.

Category 5e Cable

This cable is the most common wiring used in a LAN. The cable is made up of 4 pairs of wires that are twisted to reduce electrical interference.

The 802.11 protocol

This can provide increased throughput based on the wireless network environment. If all wireless devices connect with this same standard, maximum speeds can be obtained for that standard. If the access point is configured to accept only one of this same standard, devices that do not use that standard cannot connect to the access point.

SSID Broadcast

This is one of the Packet Tracer Basic Wireless Settings interfaces that determines if the SSID will be broadcast to all devices within range. By default, set to Enabled.

Network mode

This is one of the Packet Tracer Basic Wireless Settings interfaces that determines the type of technology that must be supported. For example, 802.11b, 802.11g, 802.11n or Mixed Mode.

Network Name (SSID)

This is one of the Packet Tracer Basic Wireless Settings interfaces that is used to identify the WLAN. All devices that wish to participate in the WLAN must have the same SSID.

Standard Channel

This is one of the Packet Tracer Basic Wireless Settings interfaces that specifies the channel over which communication will occur. By default, this is set to Auto to allow the AP to determine the optimum channel to use.

Mobility

This is one of the benefits of wireless LAN technology that allows for easy connection of both stationary and mobile clients.

Scalability

This is one of the benefits of wireless LAN technology that can be easily expanded to allow more users to connect and to increase the coverage area.

Flexibility

This is one of the benefits of wireless LAN technology that provides anytime, anywhere connectivity.

Cost savings

This is one of the benefits of wireless LAN technology where equipment costs continue to fall as the technology matures.

Reduced installation time

This is one of the benefits of wireless LAN technology where installation of a single piece of equipment can provide connectivity for a large number of people.

Reliability in harsh environments

This is one of the benefits of wireless LAN technology where it is easy to install in emergency and hostile environments.

Internet Port

This port is used to connect the device to another network. This port connects the router to a different network than the Ethernet ports. This port is often used to connect to the cable or DSL modem in order to access the internet.

Mixed Mode Wireless Network Environment

This thing can include devices that use any of the existing Wi-Fi standards. This thing provides easy access for older devices that need a wireless connection but do not support the latest standards. When building this thing, it is important that the wireless components connect to the appropriate WLAN. This is done using the SSID.

The SSID

This thing is a case-sensitive, alphanumeric string that contains up to 32 characters. It is sent in the header of all frames transmitted over the WLAN. This thing is also used to tell wireless devices, called wireless stations (STAs), which WLAN they belong to and with which other devices they can communicate.

False

True or False? A home router typically only provides wired access to the network. You have to buy a separate device for wireless access.

True

True or False? Certain areas of the electromagnetic spectrum can be used without a permit.

false

True or False? Wi-Fi, Bluetooth, and cordless phones all use the same frequency ranges.

Great Range and Improved Throughput

Unlike Bluetooth technology, 802.11 devices transmit at a much higher power level giving them a. . .

Specific Wireless Network

We use the SSID to identify a. . .

Guest SSID

What can be used to allow visitor mobile devices to connect to a wireless network and restrict access of those devices to only the Internet?

The AP releases the channel.

What happens when a device sends an acknowledgment message to a wireless AP?

Channel

What is created when you divide up the available radio frequency spectrum?

CSMA/CA

What is the method used to create a reservation on the channel for a specific conversation between devices?

An Ethernet Port

What is used to connect a wired device to the internal switch of the home router?

The Service Set Identifier (SSID)

What is used to identify a specific wireless network?

Wi-Fi Alliance

What organization is responsible for testing wireless LAN devices?

It is to create a wireless network usable by other devices.

What purpose would a home user have for implementing Wi-Fi?​

2.4 GHz & 5 GHz

What radio frequency bands are used in home wireless LANs?

Using the default IP address on an access point makes hacking easier & with SSID broadcast disabled, an attacker must know the SSID to connect.

What statement(s) characterize wireless network security?

Bluetooth Devices

What technology makes use of the 2.4 GHz band?

LAN Device

What type of device is commonly connected to the Ethernet ports on a home wireless router?

Bluetooth

What type of network technology is used for low-speed communication between peripheral devices?

Wi-Fi

Which type of wireless communication is based on 802.11 standards?

A Coaxial Cable

Which wired network technology has an inner wire surrounded by a tubular insulating layer, that is then surrounded by a tubular conducting shield.

Interference

Wireless devices that transmit over the same frequency range create ____________ in a Wi-Fi network.

Radio and television broadcast bands, visible light, x-rays and gamma-rays.

Wireless technologies use electromagnetic waves to carry information between devices. The electromagnetic spectrum includes such things as ______________________________________________________. Each of these has a specific range of wavelengths and associated energies, as shown in the figure.

Expanded

Wireless technology enables networks to be easily ________, without the limitations of cabled connections. New and visiting users can join the network quickly and easily.

Increased

Wireless technology is fairly easy and inexpensive to install. The cost of home and business wireless devices continues to decrease. Yet, despite the decrease in cost, the data rate and capabilities of these devices have _________, allowing faster, more reliable wireless connections.

Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA)

Wireless technology uses an access method called______________________________________________________________________. This creates a reservation on the channel for a specific conversation between devices. While a reservation is in place, no other device may transmit on the channel, thus possible collisions are avoided.

Wired Connectivity

Within a home LAN, items such as smart phones and tablets are mobile. Televisions and other audio/video devices may be mounted in more permanent locations and may benefit from. . .

LAN

Within a wireless ____, the lack of well-defined boundaries makes it impossible to detect if collisions occur during transmission. Therefore, it is necessary to use an access method on a wireless network that ensures collisions do not occur.

Name

is essentially the _____ of the network. Wireless routers usually broadcast their configured SSIDs by default. The SSID broadcast allows other devices and wireless clients to automatically discover the _____ of the wireless network. When the SSID broadcast is disabled, you must manually enter the SSID on wireless devices.

Coaxial Cable

this cable has an inner wire surrounded by a tubular insulating layer, that is then surrounded by a tubular conducting shield. Most of these cables also have an external insulating sheath or jacket.