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Exam 10: Wide Area Networking and Cloud Computing

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Question 21

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What is the difference between the two types of virtual circuits?

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Switched virtual circuits are ...

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Question 22

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Select the true statement regarding analog and digital signals.

A) Analog signals vary over time continually and can be represented by a sine wave, while digital signals are binary 1s and 0s using voltage levels.
B) Digital signals vary over time continually and can be represented by a sine wave, while analog signals are binary 1s and 0s using voltage levels.
C) A modem is not required to transmit LAN data over a WAN link that uses analog signals.
D) On fiber optic media, a 1 bit can be represented as a pulsing analog signal.

E) All of the above
F) A) and D)

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Question 23

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Match each item with a statement below. a.point-to-point protocol b.frame relay c.Committed Information Rate (CIR) d.modem e.Data Circuit-terminating Equipment (DCE) f.virtual circuit g.Data Terminal Equipment (DTE) h.Synchronous Optical Network (SONET) i.smart jack j.SaaS -a device computers use to convert digital signals to analog signals

________ is a cell-based packet-switching technology in which the cells are of a fixed length rather than typical packet-based systems that use variable length packets.

Match each item with a statement below. a.point-to-point protocol b.frame relay c.Committed Information Rate (CIR) d.modem e.Data Circuit-terminating Equipment (DCE) f.virtual circuit g.Data Terminal Equipment (DTE) h.Synchronous Optical Network (SONET) i.smart jack j.SaaS -a category of cloud computing in which a customer pays for the use of applications that run on a service provider's network

Which cloud computing category refers to the use of software hosted on a service provider's network, and is usually subscription based?

Describe how a company can use IaaS and how it might be a benefit to that company.

Match each item with a statement below. a.point-to-point protocol b.frame relay c.Committed Information Rate (CIR) d.modem e.Data Circuit-terminating Equipment (DCE) f.virtual circuit g.Data Terminal Equipment (DTE) h.Synchronous Optical Network (SONET) i.smart jack j.SaaS -a guaranteed minimum transmission rate offered by the service provider

Multiprotocol Label Switching (MPLS) supports both IPv4 and IPv6, as well as other network layer protocols.

Describe how PaaS can help entrepreneurs and increase competition.

Which of the following terms describes the category of cloud computing in which a customer develops applications using development tools and infrastructure provided by the service provider?

Which statement about Multiprotocol Label Switching (MPLS) is true?

What is the signaling method used to allocate time slots for each channel in a T-carrier line called?

Part of SONET's flexibility comes from its ability to be arranged in several different physical topologies. Which of the following is NOT a possible SONET topology?

Which one of the following is NOT a typical SONET data rate?

Which cloud computing category allows a company to quickly provision additional disk space?

If a portion of a T-Carrier line is used for one purpose and a different portion for another purpose, the line has been ____________.

Match each item with a statement below. a.point-to-point protocol b.frame relay c.Committed Information Rate (CIR) d.modem e.Data Circuit-terminating Equipment (DCE) f.virtual circuit g.Data Terminal Equipment (DTE) h.Synchronous Optical Network (SONET) i.smart jack j.SaaS -the device that sends data to (and receives data from) the local loop, usually a CSU/DSU or modem

What would an Asynchronous Transfer Mode (ATM) network be best suited for?

Match each item with a statement below. a.point-to-point protocol b.frame relay c.Committed Information Rate (CIR) d.modem e.Data Circuit-terminating Equipment (DCE) f.virtual circuit g.Data Terminal Equipment (DTE) h.Synchronous Optical Network (SONET) i.smart jack j.SaaS -a remote access protocol that supports many protocols and is used to carry data over a variety of network connections