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Fundamentals of WANs Quiz

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Questions and Answers

What is the demarcation point?

The point where the WAN service provider's software ends and the customer's software begins

The point where the WAN service provider's wiring ends and the customer's wiring begins (correct)

The point where the WAN service provider's hardware ends and the customer's hardware begins

The point where the WAN service provider's network ends and the customer's network begins

What does CPE stand for?

Customer Provisioned Equipment

Communications Protocol Environment

Central Processing Equipment

Customer Premises Equipment (correct)

Who operates WANs?

Home networking companies

Phone/cable companies, service providers, or satellite companies (correct)

Datacenter operators

Individual customers

What does the physical layer of a WAN involve?

Different hardware, cables, connectors, and interfaces Signup and view all the answers

What is considered as 'service provider equipment'?

All hardware and devices that belong to the service provider Signup and view all the answers

What is a possible combination of ownership for CPE?

Router owned by the customer and modem leased from the service provider Signup and view all the answers

What is the purpose of the CSU/DSU device in a network?

To convert digital signals from the WAN into a signal the router understands and vice versa Signup and view all the answers

What is the function of the DCE in a network?

To receive data from the DTE and modulate it into an analog signal for transmission Signup and view all the answers

What is the local loop in a network?

The physical link that connects from the demarcation point at the customer to the edge of the service provider network Signup and view all the answers

Which method involves breaking down data into packets for transmission on a network?

Packet Switching Signup and view all the answers

What does the DTE (Data Terminal Equipment) do in a network?

Forwards data from the custom System Software Physical Layer Terminology Signup and view all the answers

What was the function of the CSU/DSU in older networking systems?

To modulate data into an analog signal and forward it onto the wire to the service provider Signup and view all the answers

What is another term for the local loop in a network?

"Last mile" Signup and view all the answers

'Circuit Switching' in networking refers to:

Using telephone switchboards operated by operators to connect calls exclusively between users Signup and view all the answers

What is the role of DCE (Data Circuit-terminating Equipment) in networking?

Receives data from DTE, modulates it into an analog signal, and forwards it onto the wire to the service provider Signup and view all the answers

What does CSU/DSU (Channel Service Unit / Data Service Unit) do in a network?

Converts digital signals from WAN into a signal that router understands and vice versa Signup and view all the answers