WAN Overview
WAN Operations
More WAN Operations
Selecting a WAN Technology
FLASH
100
WANs are used to connect these across large geographic areas
What are LANs?
100
Size of an ATM-header
What is 5 bytes (40 bits)?
100
Local service provider facility or building that connects the CPE to the provider network.
What is CO?
100
This type of WAN connection requires the use of a CSU/DSU device.
What is a leased line?
100
A small company with 10 employees uses a single LAN to share information between computers. This type of connection to the Internet would be appropriate.
What is a broadband service?
200
A ________ infrastructure connection can be a cost-effective alternative to a private connection between LANs, as long as security is also planned.
What is public?
200
A construction firm is building a power plant at a remote and isolated mine site and needs to connect the data network of the plant to the corporate network. Which public technology is the most suitable to meet the connection needs?
What is Satellite Internet or VSAT Internet?
200
This newer fiber optic media development for long-range communications can multiply the amount of bandwidth that a single strand of fiber can support.
What is Dense Wavelength Division Multiplexing (DWDM)?
200
Two categories of packet-switched networks.
What are Connectionless and Connection-oriented systems?
200
This is the recommended technology to use over a public WAN infrastructure when a branch office is connected to the corporate site.
What is VPN?
300
WAN access standards operate at Layers 1 and 2 of the OSI model, and are defined and managed by these three organizations.
What are TIA/EIA, ISO, and IEEE?
300
The actual copper or fiber cable that connects the CPE to the CO of the service provider.
What is local loop?
300
The place where the responsibility for the connection changes from the user to the service provider.
What is Demarcation Point?
300
Service provider networks are complex and mostly consist of these to common high-bandwidth fiber-optic media standards.
What are SONET and SDH?
300
This WAN technology is cell-based and well suited to carry voice and video traffic.
What is ATM?
400
TRUE or FALSE. WANs provide both speed and cost-efficiency for transmitting data over relatively small geographic areas.
What is FALSE?
400
Primarily provides an interface to connect subscribers to a communication link on the WAN cloud.
What is DCE?
400
The cabling junction box, located on the customer premises, that connects the CPE wiring to the local loop.
What is Demarcation Point?
400
A newer fiber optic media development for long-range communications.
What is DWDM?
400
These two technologies use the PSTN network to provide an Internet connection.
What are ISDN and dialup?
500
This device concentrates dial-in and dial-out user communications. Considered to be a legacy technology, this may have a mixture of analog and digital interfaces and support hundreds of simultaneous users.
What is an Access Server?
500
This consists of the long-haul, all-digital, fiber-optic communications lines, switches, routers, and other equipment inside the WAN provider network.
What is toll network?
500
This private WAN infrastructure can encapsulate packets of various network protocols. It supports a wide range of WAN technologies including T-carrier / E-carrier links, Carrier Ethernet, ATM, Frame Relay, and DSL.
What is Multiprotocol Label Switching (MPLS)?
500
This medium is what service providers use to transmit data over WAN connections with SONET, SDH, and DWDM
What is fiber-optic?
500
DMVPN is built using these three technologies
What are Next Hop Resolution Protocol (NHRP), Multipoint Generic Routing Encapsulation (mGRE) and IP Security (IPsec) encryption?
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