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Questions and Answers
Which type of WAN technology utilizes existing telephone lines for high-bandwidth data transport?
Which type of WAN technology utilizes existing telephone lines for high-bandwidth data transport?
Which WAN technology is considered an ideal solution for connecting two sites where wired connections are impractical?
Which WAN technology is considered an ideal solution for connecting two sites where wired connections are impractical?
What is a common feature of MPLS networking technology?
What is a common feature of MPLS networking technology?
Which of the following is a packet switched technology that is typically cheaper than a dedicated line?
Which of the following is a packet switched technology that is typically cheaper than a dedicated line?
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What does VSAT technology utilize to create a private WAN?
What does VSAT technology utilize to create a private WAN?
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What is a characteristic of Ethernet WAN technology that differentiates it from traditional WAN solutions?
What is a characteristic of Ethernet WAN technology that differentiates it from traditional WAN solutions?
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Which statement most accurately describes Multiprotocol Label Switching (MPLS)?
Which statement most accurately describes Multiprotocol Label Switching (MPLS)?
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What is a significant reason businesses might choose wireless P2P (Microwave Links) over leased lines?
What is a significant reason businesses might choose wireless P2P (Microwave Links) over leased lines?
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Which technology can provide both high-speed broadband access and wireless communication capabilities?
Which technology can provide both high-speed broadband access and wireless communication capabilities?
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What best describes the function of Customer Premises Equipment (CPE) in a WAN setup?
What best describes the function of Customer Premises Equipment (CPE) in a WAN setup?
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Study Notes
WAN Access Options
- A Wide Area Network (WAN) uses data links provided by carrier services to access the internet and connect Local Area Networks (LANs) in different locations.
WAN Terminology
- CPE (Customer Premises Equipment): Equipment on the customer's premises that connects to the WAN.
- DTE (Data Terminal Equipment): Equipment that generates or consumes data, such as computers or terminals.
- DCE (Data Communication Equipment): Equipment that provides a connection to the network, such as a modem or router.
- CO (Central Office): The facility where the telecommunications carrier connects customer lines to the network.
Leased Lines
- Also known as point-to-point link, serial link, and leased circuit.
- A dedicated, private connection between two locations.
- Telecom companies offer different bandwidth standards such as T1, T3, E1, E3, etc.
- Layer 2 protocol used is usually HDLC or PPP.
Wireless P2P (Microwave Links)
- A suitable alternative for business communication between two buildings or sites where a wired connection is impractical or costly.
Frame-Relay
- Packet-switched technology.
- Can be point-to-point or point-to-multipoint (shared).
- Cheaper than a dedicated line.
- Nowadays, it is often replaced by Ethernet WANs.
Ethernet WAN
- Newer Ethernet standards using fiber-optic cables have enabled it as a WAN technology.
- Other names for Ethernet WAN include Metropolitan Ethernet (MetroE), Ethernet over MPLS (EoMPLS), and Virtual Private LAN Service (VPLS).
Multiprotocol Label Switching (MPLS)
- A multiprotocol (can encapsulate packets of various network protocols) technology that directs data from one router/switch to the next.
Digital Subscriber Line (DSL)
- Uses existing twisted-pair telephone lines to transport high-bandwidth data.
- Provides IP services to subscribers.
Very Small Aperture Terminal (VSAT)
- A solution that creates a private WAN using satellite communications.
Worldwide Interoperability for Microwave Access (WiMAX)
- High-speed broadband service with wireless access.
3G/4G Cellular
- Most dominant cellular technologies used in WAN include GSM, CDMA, and LTE.
WAN Access Options
- WANs utilize carrier services for internet access and connection between LANs in various locations
- WANs are used to connect geographically separated networks over long distances
WAN Terminology
- CPE (Customer Premises Equipment) is the equipment located on the customer's premises
- DTE (Data Terminal Equipment) is the equipment that generates or receives data, e.g. computers
- DCE (Data Communications Equipment) is the equipment that handles data transmission, e.g. modems
- CO (Central Office) is the facility where telephone company equipment is located
Leased Lines
- Also referred to as point-to-point links, serial links and leased circuits
- A P2P link is dedicated for exclusive use by the customer
- Telecom companies offer various bandwidth standards, such as T1, T3, E1, E3
- Layer 2 protocol commonly used is HDLC (High-level Data Link Control) or PPP (Point-to-Point Protocol)
Wireless P2P (Microwave Links)
- A feasible alternative for communication between buildings or sites where wired connection is impractical or expensive
- Signal transmission is achieved via radio waves
Frame-relay
- Packet-switched technology, meaning data is divided into small packets and transmitted over various paths
- Provides both point-to-point and point-to-multipoint connections
- Cost-effective compared to dedicated lines
- Replaced by Ethernet WANs in modern networks
Ethernet WAN
- Utilizes fiber-optic cables for high-speed data transmission
- Newer Ethernet standards have enabled it as a WAN technology
- Known as Metropolitan Ethernet (MetroE), Ethernet over MPLS (EoMPLS), and Virtual Private LAN Service (VPLS)
Multiprotocol Label Switching (MPLS)
- Multiprotocol technology capable of encapsulating packets from different network protocols
- Directs data traffic efficiently from one router/switch to the next
DSL
- Leverages existing twisted-pair telephone lines for high-bandwidth data transmission
- Provides internet services to subscribers via IP (Internet Protocol)
VSAT
- Utilizes satellite communications to establish a private WAN
- Creates a network connection that spans long distances and remote locations
WiMAX
- Stands for Worldwide Interoperability for Microwave Access
- Offers high-speed broadband services with wireless access
3G/4G Cellular
- Major players in cellular technology include GSM (Global System for Mobile Communications), CDMA (Code Division Multiple Access), and LTE (Long Term Evolution)
- Enables mobile data connectivity and internet access via cellular networks
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Description
This quiz covers the essential concepts related to Wide Area Network (WAN) access, including terminology such as CPE, DTE, and DCE. Additionally, it explores leased lines and wireless point-to-point links. Test your knowledge of how these components work together to connect different locations.
