Podcast
Questions and Answers
Leased lines allow organizations to pay a one-time fee to a service provider for usage.
Leased lines allow organizations to pay a one-time fee to a service provider for usage.
False
T-carrier systems are primarily used in Europe.
T-carrier systems are primarily used in Europe.
False
E-carrier provides E1 links that support bandwidth up to 2.048 Mbps.
E-carrier provides E1 links that support bandwidth up to 2.048 Mbps.
True
The maximum bandwidth of a T3 link is $43.7$ Mbps.
The maximum bandwidth of a T3 link is $43.7$ Mbps.
Signup and view all the answers
Point-to-point lines can be leased from a service provider.
Point-to-point lines can be leased from a service provider.
Signup and view all the answers
The term 'leased lines' is used because organizations pay a fee for dedicated time slots.
The term 'leased lines' is used because organizations pay a fee for dedicated time slots.
Signup and view all the answers
Traditional WAN connectivity options emerged in the 1990s with the advent of LANs.
Traditional WAN connectivity options emerged in the 1990s with the advent of LANs.
Signup and view all the answers
E3 links in the E-carrier system support bandwidth up to 34.368 Mbps.
E3 links in the E-carrier system support bandwidth up to 34.368 Mbps.
Signup and view all the answers
An organization typically chooses a single-carrier WAN connection for increased redundancy.
An organization typically chooses a single-carrier WAN connection for increased redundancy.
Signup and view all the answers
A dual-carrier connection increases network availability by negotiating separate SLAs with two different service providers.
A dual-carrier connection increases network availability by negotiating separate SLAs with two different service providers.
Signup and view all the answers
A service level agreement (SLA) typically outlines the reliability and availability of a connection between the customer and the carrier.
A service level agreement (SLA) typically outlines the reliability and availability of a connection between the customer and the carrier.
Signup and view all the answers
As a business grows, its network requirements generally remain static and do not change over time.
As a business grows, its network requirements generally remain static and do not change over time.
Signup and view all the answers
A carrier owns and maintains the physical connection and equipment in a WAN setup.
A carrier owns and maintains the physical connection and equipment in a WAN setup.
Signup and view all the answers
The Local Loop is the fiber cable that connects the CPE to the CO of the service provider.
The Local Loop is the fiber cable that connects the CPE to the CO of the service provider.
Signup and view all the answers
A Backbone network is used exclusively for connecting end-user devices.
A Backbone network is used exclusively for connecting end-user devices.
Signup and view all the answers
The CSU/DSU is used to connect a digital device to an analog line.
The CSU/DSU is used to connect a digital device to an analog line.
Signup and view all the answers
Voiceband modems operate by utilizing fiber-optic connections.
Voiceband modems operate by utilizing fiber-optic connections.
Signup and view all the answers
Dial-up modems are considered legacy devices.
Dial-up modems are considered legacy devices.
Signup and view all the answers
The backhaul network connects multiple access nodes of the service provider network.
The backhaul network connects multiple access nodes of the service provider network.
Signup and view all the answers
DSL modems are considered broadband modems and connect to the DTE router using Ethernet.
DSL modems are considered broadband modems and connect to the DTE router using Ethernet.
Signup and view all the answers
The term 'Toll network' refers to the physical location of the service provider's central office.
The term 'Toll network' refers to the physical location of the service provider's central office.
Signup and view all the answers
An Optical Converter is used to connect fiber-optic media to wireless networks.
An Optical Converter is used to connect fiber-optic media to wireless networks.
Signup and view all the answers
The Central office (CO) is the facility that connects the CPE to the provider network.
The Central office (CO) is the facility that connects the CPE to the provider network.
Signup and view all the answers
Fiber to the Home (FTTH) means that fiber reaches the user's living space directly.
Fiber to the Home (FTTH) means that fiber reaches the user's living space directly.
Signup and view all the answers
Fiber to the Node (FTTN) uses optical cabling to connect directly to individual apartments.
Fiber to the Node (FTTN) uses optical cabling to connect directly to individual apartments.
Signup and view all the answers
Wireless technology for internet connectivity requires a licensed radio spectrum.
Wireless technology for internet connectivity requires a licensed radio spectrum.
Signup and view all the answers
Municipal Wi-Fi networks are often provided at no cost to users.
Municipal Wi-Fi networks are often provided at no cost to users.
Signup and view all the answers
Satellite Internet is generally suitable for urban areas with access to DSL.
Satellite Internet is generally suitable for urban areas with access to DSL.
Signup and view all the answers
Cellular technology includes 3G, 4G, 5G, and LTE.
Cellular technology includes 3G, 4G, 5G, and LTE.
Signup and view all the answers
Heavy rains can enhance the satellite signal quality.
Heavy rains can enhance the satellite signal quality.
Signup and view all the answers
Fiber to the Building (FTTB) provides fiber connectivity to individual living spaces directly.
Fiber to the Building (FTTB) provides fiber connectivity to individual living spaces directly.
Signup and view all the answers
FTTx is capable of delivering higher bandwidth than other broadband options.
FTTx is capable of delivering higher bandwidth than other broadband options.
Signup and view all the answers
A router connects to a cable modem to utilize Satellite Internet.
A router connects to a cable modem to utilize Satellite Internet.
Signup and view all the answers
A Wireless Router is primarily designed to connect devices to a local area network (LAN).
A Wireless Router is primarily designed to connect devices to a local area network (LAN).
Signup and view all the answers
Serial communication transmits bits simultaneously over multiple channels.
Serial communication transmits bits simultaneously over multiple channels.
Signup and view all the answers
Long distances in parallel communication require sensitive synchronization timing.
Long distances in parallel communication require sensitive synchronization timing.
Signup and view all the answers
Circuit-switched communication establishes a dedicated path before communication can begin.
Circuit-switched communication establishes a dedicated path before communication can begin.
Signup and view all the answers
The public switched telephone network (PSTN) is an example of packet-switched WAN technology.
The public switched telephone network (PSTN) is an example of packet-switched WAN technology.
Signup and view all the answers
Parallel communication can be used over long distances without issues.
Parallel communication can be used over long distances without issues.
Signup and view all the answers
Layer 3 switches are part of the WAN backbone infrastructure.
Layer 3 switches are part of the WAN backbone infrastructure.
Signup and view all the answers
All communication in a circuit-switched network uses different paths.
All communication in a circuit-switched network uses different paths.
Signup and view all the answers
Parallel communication is more efficient than serial communication over long distances.
Parallel communication is more efficient than serial communication over long distances.
Signup and view all the answers
Integrated Services Digital Network (ISDN) is a type of public switched telephone network.
Integrated Services Digital Network (ISDN) is a type of public switched telephone network.
Signup and view all the answers
Study Notes
Traditional WAN Connectivity
- Emerged in response to interconnectivity needs after LANs appeared in the 1980s.
- Organizations connected to local loops of service providers via dedicated or switched lines.
Common WAN Terminology
- Leased Lines: Monthly fees paid for point-to-point lines from a service provider.
- T-carrier: North American system; T1 supports 1.544 Mbps, T3 supports 43.7 Mbps.
- E-carrier: European system; E1 supports 2.048 Mbps, E3 supports 34.368 Mbps.
Internet-Based Connectivity
-
Fiber to the x (FTTx): High-bandwidth solution including:
- FTTH: Fiber to the Home.
- FTTB: Fiber to the Building.
- FTTN: Fiber to the Node, where optical signals are converted for local connections.
Wireless Internet-Based Broadband
- Municipal Wi-Fi: Free or low-cost city-wide high-speed internet.
- Cellular Technology: Connects devices via mobile towers (3G, 4G, 5G, LTE).
- Satellite Internet: For remote areas; signal quality affected by weather.
WAN Operations - Common Terminology
- Local Loop: The last mile connection to customer premises equipment (CPE).
- Central Office (CO): Facility connecting CPE to the provider network.
- Toll Network: Includes all backend components like switches and routers.
- Backhaul Network: Connects multiple access nodes of the provider network.
- Backbone Network: High-capacity networks interconnecting service providers.
WAN Devices
- Dial-up Modem: Connects using telephone lines, now largely obsolete.
- Broadband Modems (DSL/Cable): High-speed connections via Ethernet.
- CSU/DSU: Connects digital devices to digital lines for leased lines.
- Optical Converter: Bridges fiber-optic and copper media.
- Wireless Router/Access Point: Facilitates wireless WAN connectivity.
Serial Communication
- Utilizes one channel for sequential bit transmission.
- Parallel communication is less common due to synchronization issues over distances.
Circuit-Switched Communication
- Establishes a dedicated circuit for all communication between endpoints.
- Common technologies include PSTN and ISDN.
Purpose of WANs - Carrier Connections
- Organizations sign SLAs with service providers, defining reliability and availability.
- A service provider may not be the physical carrier, which maintains the connection equipment.
- Single-Carrier Connection: Connects to one provider with one SLA.
- Dual-Carrier Connection: Provides redundancy with SLAs from two separate providers.
Purpose of WANs - Evolving Networks
- Network requirements evolve as organizations grow; adaptative infrastructure is essential to meet operational needs.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Explore the various traditional WAN connectivity options available. This quiz aims to enhance your understanding of the methods used for network communication. Test your knowledge and learn more about these essential networking concepts.
