Exam 9: Understanding Wan Connection Choices

Circuit mode is most commonly employed in voice transmissions.

SONET travels in a ____ topology.

Only the bottom layer of SONET has an actual correspondence to the OSI model.

Identify and describe three types of services offered by frame relay service providers.

How does ISDN use the echo cancellation method of transmission?

The basic Synchronous Digital Hierarchy (SDH)transmission rate is ____ Mbps.

In the ____ mode service of an ISDN, several circuits can be used during a communications session.

Describe an ATM switched virtual circuit (ATM SVC).

____________________ suppression is a technique that detects periods of silence between words, or as a conversation shifts from one person to the other.

____________________ mode means that your communications circuit lasts for the duration of the communications session and is used exclusively by the two connected devices until it is terminated.

Provide a high-level description of broadband ISDN (B-ISDN).

What is the role of the frame relay assembler/disassembler (FRAD)in frame relay communications?

Like some other WAN technologies, such as frame relay, ATM uses virtual circuits that are called ____.

Two types of virtual connections exist within frame relay: permanent and ____.

The ____-compression multiplexing method sends 16- to 24-bit blocks of data in alternating digital bursts.

The Basic Rate Interface (BRI)ISDN has an aggregate data rate of ____.

How does SONET use unidirectional path switching to provide failure recovery?

The 1992 update of the X.25 protocol includes maximum transmission speeds of up to ____.

An X.25 network can transmit data packets using one of three modes: switched virtual circuits, permanent virtual circuits, and ____.

Compare and contrast a DSL adapter with a cable modem.