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Exam 11: Wide Area Networks

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Question 1

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Frame relay relies on what two different types of virtual circuits?

A) LVC
B) PVC
C) TVC
D) SVC

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Question 2

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In a PON setup,the system is considered passive because no repeaters or other devices intervene between the carrier and the customer.

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Question 3

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Matching Match each correct item with the statement below. -A special case of geosynchronous orbitin which the satellite stays directly above the equator andappears stationary from Earth.Thesesatellitesare the type used to provide satellite Internet access.

Matching Match each correct item with the statement below. -A connectivity devicelocated at a telecommunications carrier's office that aggregatesmultiple DSL subscriber lines and connects them to alarger carrier or to the Internet backbone.

When copper cabling is used to carry T-1 traffic,what kind of connector is used?

A bus topology WAN is often the best option for an organization with only a few sites and the capability to use dedicated circuits.

At what two layers of the OSI model are LAN and WAN protocols likely to differ?

In what type of topology is each site connected to two other sites,providing redundancy?

What is the maximum throughput of a DS3 connection?

What is the difference between a DTE and a DCE?

Matching Match each correct item with the statement below. -The guaranteedminimum amount of bandwidth selected when leasing aframe relay circuit.Frame relay costs are partially basedon this.

The DTE or endpoint device for a leased line is known as which device below?

What Layer 3 technology is employed by distance-vector routing protocols in which a router knows which of its interfaces a routing update and will not retransmit,or advertise,that same update on the same interface?

If the line between the carrier and the customer experiences significant errors on a T-1,a ____________ will report this fact to the carrier.

The customer's endpoint device on the WAN is called the __________________.

What are some of the features of the WiMAX standard?

Outline the differences between a LAN and a WAN connection.

What OC level is primarily used as a regional ISP backbone,and occasionally by very large hospitals,universities,or other major enterprises?

Matching Match each correct item with the statement below. -The equipment on a satellite that receives anuplinked signal from Earth,amplifies the signal,modifies itsfrequency,then retransmits it (in a downlink) to an antennaon Earth.

In an ISDN connection,what is the size throughput did a single B channel provide?