This is a circuit-switched network. A dedicated circuit is established when the call is placed and remains in place throughout the call. The local loop uses analog signals over POTS (through regular telephone cable wires). The long distance network typically uses digital signaling over fiber optic. End-to-end speeds are limited to 56 Kbps, a restriction imposed by POTS in the local loop at each end. A modem is required to convert digital signals to analog. Remote access clients use this as a way to access the network or as a temporary or backup connection between sites.

Public switched telephone network (PTSN)

Integrated Services Digital Network (ISDN)

Multiprotocol Label Switching (MPLS)

This has the following characteristics: It is a circuit switching technology. It is a local loop technology. When calls reach the WAN cloud, they are converted to another protocol for transmission through the WAN. With BRI, you can use one channel for voice and one channel for data, or both channels for different voice calls. Depending on the implementation, you can also bond the B channels and use them together. PRI requires a CSU/DSU for the T1 line.

Integrated Services Digital Network (ISDN)

Public switched telephone network (PTSN)

Multiprotocol Label Switching (MPLS)

This is an architecture in which multiple processor-controlled switching units are distributed. There is often a hierarchy of switching elements with a centralized host switch and remote switches located close to concentrations of users. Distributed switching: Is often used in telephone networks, though it is often called host-remote switching. Is used in rural areas, where population centers tend to be too small to economically deploy a full-featured dedicated telephone exchange. The distances between these centers make the transmission costs relatively high.

Public switched telephone network (PTSN)

Integrated Services Digital Network (ISDN)

Multiprotocol Label Switching (MPLS)

This lassification and data-carrying mechanism. It is a packet switching technology that supports variable-length frames. It adds a label to packets between the existing Network and Data Link layer formats. Labels are added when the packet enters the this type of network and are removed when the packet exits the network. Information in the label is used to switch the packet through this network to the destination.

Multiprotocol Label Switching (MPLS)

Public switched telephone network (PTSN)

Integrated Services Digital Network (ISDN)

This uses a single phone line with a modem. Dial-up uses a single 64-Kbps channel. Common data transfer rates include 14.4 Kbps, 28.8 Kbps, 33.3 Kbps, and 56 Kbps. Dial-up offers a minimum level of network connectivity for a low investment. It is available virtually anywhere that regular voice grade communications are available. Computers dial an access server at the ISP. You must configure the system with the ISP server's phone number, along with a user name and password to log on. The phone line cannot be used for voice and for the internet simultaneously.

Public switched telephone network (PTSN)

This offers digital communications over existing POTS lines. Data is sent using multiplexed channels over existing telephone wiring. Implementation requires a specific router or a single network interface connected to the phone line. This service is not available everywhere; the location must be within a fixed distance of network switching equipment. There are several variations: asymmetrical, symmetrical, and very high.

Public switched telephone network (PTSN)

Companies that provide cable television access typically offer internet access. Existing cable TV lines provide bandwidth for internet access. Cable internet uses the Data over Cable Service Interface Specification (DOCSIS) that allows data signals to be sent on existing cable TV infrastructures. DOCSIS specifies channel widths, modulation techniques, and how core components of the network communicate. A cable modem is a device that connects a computer system to the internet using a cable television network. But a cable modem doesn't function as a modem anymore because it doesn't modulate and demodulate a signal between an analog network and a digital end device. Many cable internet service providers (ISPs) are migrating to a fully digital network, including their television signals. Because of this, cable modems on digital systems are not modems. They are called media converters or cable terminal devices.

Public switched telephone network (PTSN)

Which BEST describes a WAN?

Connects LANS that are in different locations

Computers connected together in a wide area

Computers connected together in a local area

Which of the following scenarios would need a WAN? (PICK MORE THAN ONE!)

A company with offices around the world

A gaming party where everyone travels to one location

What is an advantage of a WAN?

Can cover near infinite geographical distance

Viruses can spread to other computers throughout a computer network.

Managing a large network is complicated, requires training and a network manager usually needs to be employed.

What factor could affect the performance of a network?

Too many users using the same network at the same time

Too little users using the same network at the same time

Too many people using other networks at the same time

People using two computers on the same network

Who usually owns the hardware to create a WAN?

Telecommunication companies (ISP)

The person who uses the network

Tick all the disadvantages of computer networks.

Networks can have security risks

High amounts of traffic can cause a network to run slowly

Depending on the network structure, the entire network could fail if certain elements fail

Application servers can be used to store software in a central location

File servers can store data in a central location, making it easier to keep secure and backup

Which of the following networks is MOST likely to be a WAN?

A network of bank cash dispensers

What is the internet?

A collection of interconnected networks

A network in which computers communicate using resources provided by a 'third party carrier'

Computers working from a single site

A network in which computer communicate using resources provided by a 'first party carrier'

Which is the BEST definition of the Internet ...?

A US network with subnetworks around the world

There are potentially billions of devices connected to the Internet at any one time. Which of these are potential problems with that?

Not enough IP addresses to go around

Which one is true of a WAN?

Has over 500 devices connected to it

Wide Area Networks

Authored by Jamie Gilbert

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MULTIPLE CHOICE QUESTION

WAN cloud

Local Loop

Demarc

Customer Premises Equipment (CPE)

Packet switching exchange (PSE)

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

This is the cable that extends from the central office to the customer location. This is owned and maintained by the WAN service provider.
It usually uses UTP, but it can also be implemented using fiber optic cabling or other media.

WAN cloud

Local Loop

Demarc

Customer Premises Equipment (CPE)

Packet switching exchange (PSE)

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Wide Area Networks

This WAN tech has a speed of 56 Kbps,
existing wires use only one twisted pair.
Analog signals are used through the local loop

This WAN tech has a speed of 1.544 Mbps / 44.736 Mbps,
these lines usually run over two pairs of STP cabling
Can also run over other media like coaxial, fiber optic, or satellite.

This WAN tech has a speed of 2.048 Mbps / 34.368 Mbps,
This system is widely deployed in Europe.

This WAN tech has a speed of 1.544 Mbps / 32.064 Mbps,
This system is widely deployed in Japan

This WAN tech has a speed of 51.84 Mbps and uses it as it's base,
this system uses wavelength division multiplexing (WDM) to increase capacity of communication over fiber optic cabling.

This is the collection of equipment that makes up the WAN network. It is owned and maintained by telecommunication companies. The physical structure varies and different networks with common connection points may overlap.

This is the cable that extends from the central office to the customer location. This is owned and maintained by the WAN service provider.
It usually uses UTP, but it can also be implemented using fiber optic cabling or other media.

When you contract with a local exchange carrier (LEC) for data or telephone services, the LEC installs a physical cable and a termination jack on the organization's premises. This marks the boundary between the telco equipment and the organization's network or telephone system.

Devices physically located on the subscriber's premises are referred to as this.
This includes both the wiring and devices that the subscriber owns and the equipment leased from the WAN provider. Can include the smart jack, demarc, local loop, copper line drivers, and repeaters.

This is a mega switch computer capable of handling an extremely large numbers of packets. Its job is to decide the circuit each packet will take. It is typically located in the central offices just inside the cloud.

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Wide Area Networks

This WAN tech has a speed of 56 Kbps, existing wires use only one twisted pair.Analog signals are used through the local loop

This WAN tech has a speed of 1.544 Mbps / 44.736 Mbps, these lines usually run over two pairs of STP cablingCan also run over other media like coaxial, fiber optic, or satellite.

This WAN tech has a speed of 2.048 Mbps / 34.368 Mbps, This system is widely deployed in Europe.

This WAN tech has a speed of 1.544 Mbps / 32.064 Mbps, This system is widely deployed in Japan

This WAN tech has a speed of 51.84 Mbps and uses it as it's base, this system uses wavelength division multiplexing (WDM) to increase capacity of communication over fiber optic cabling.

This is the collection of equipment that makes up the WAN network. It is owned and maintained by telecommunication companies. The physical structure varies and different networks with common connection points may overlap.

This is the cable that extends from the central office to the customer location. This is owned and maintained by the WAN service provider.It usually uses UTP, but it can also be implemented using fiber optic cabling or other media.

When you contract with a local exchange carrier (LEC) for data or telephone services, the LEC installs a physical cable and a termination jack on the organization's premises. This marks the boundary between the telco equipment and the organization's network or telephone system.

Devices physically located on the subscriber's premises are referred to as this.This includes both the wiring and devices that the subscriber owns and the equipment leased from the WAN provider. Can include the smart jack, demarc, local loop, copper line drivers, and repeaters.

This is a mega switch computer capable of handling an extremely large numbers of packets. Its job is to decide the circuit each packet will take. It is typically located in the central offices just inside the cloud.

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Computers

This WAN tech has a speed of 56 Kbps,
existing wires use only one twisted pair.
Analog signals are used through the local loop

This WAN tech has a speed of 1.544 Mbps / 44.736 Mbps,
these lines usually run over two pairs of STP cabling
Can also run over other media like coaxial, fiber optic, or satellite.

This WAN tech has a speed of 2.048 Mbps / 34.368 Mbps,
This system is widely deployed in Europe.

This WAN tech has a speed of 1.544 Mbps / 32.064 Mbps,
This system is widely deployed in Japan

This WAN tech has a speed of 51.84 Mbps and uses it as it's base,
this system uses wavelength division multiplexing (WDM) to increase capacity of communication over fiber optic cabling.

This is the cable that extends from the central office to the customer location. This is owned and maintained by the WAN service provider.
It usually uses UTP, but it can also be implemented using fiber optic cabling or other media.

Devices physically located on the subscriber's premises are referred to as this.
This includes both the wiring and devices that the subscriber owns and the equipment leased from the WAN provider. Can include the smart jack, demarc, local loop, copper line drivers, and repeaters.