Networking Wide Area Networking

Which of the following traverses a significant distance and usually supports very high data throughput?

• LAN

• WAN

• CAN

• MAN

Which of the following is a more intelligent version of an NIU (network interface unit)?

• Modem

• DCE

• Smartjack

• DTE

Which of the following devices serves as the endpoint for a dedicated connection between an ISP and a customer?

• Line driver

• CSU/DSU

• NIU

• DTE

You are working as a network engineer with an ISP. A query has come to you from a client who requires a guarantee of minimum uptime percentages if the service goes down. Which of the following will you choose in this scenario?

• Broadband

• DIA

• DSL

• PTSN

Examine the following circumstances as a network analyst and analyze in which of the following conditions MANs (metropolitan area networks) cannot be useful.

• Connecting a city's police stations

• Connecting a hospital with its regional medical centers

• Connecting a home office with its branch offices and a warehouse location

• Connecting a clothing manufacturer to sell its products to customers worldwide

Which of the following devices contains ports to connect both to an incoming telephone line and to a computer or network connectivity device?

• NIU

• DSL modem

• PSTN

• Local loop

Which form of communication is well suited to users who receive more information from the network than they send to it?

• VDSL

• ADSL

• SDSL

• xDSL

You are working as an executive for a cable company. A client raises a request to set up a network that uses fiber-optic cabling to connect your company's distribution center to distribution hubs and then to optical nodes near its customers. From the following network options, which one would you recommend in the given scenario?

• Cable broadband

• DOCSIS

• HFC

• Cable modem

Nathan has plans of opening a call center. He will require a network connection that will have a bare minimum of 3 Gbps upstream and at least 8 Gbps downstream throughput. Analyze which of the following will provide a solution to Nathan.

• Using a DOCSIS 2.x (2.0 and 2.0 1 IPv6) for maximum throughput

• Using a DOCSIS 3.1 for maximum throughput

Analyze if any of these aspects do not apply to SD-WAN.

• SD-WAN is transport agnostic.

• SD-WAN provides better internet-based management.

• SD-WAN has zero-touch provisioning.

• SD-WAN can be more expensive than leased lines.