Exam 5: Making Connections Efficient: Multiplexing and Compression

The STS-1 signaling level supports ____ frames per second.

How does T-1 multiplexing work?

A technique that can be used to compress data when a ____ compression is necessary is the Lempel-Ziv technique.

The Lempel-Ziv algorithm can be fairly effective in compressing data.

One of the more common and simpler examples of lossless compression is ____________________-length encoding.

Three types of synchronous time division multiplexing that are popular today are T-1 multiplexing, ____ multiplexing, and SDH.

Code division multiplexing uses ____________________ spread spectrum technology.

____________________ are the codes assigned to users in CDM.

The data rate of OC-3 is exactly thirty times the rate of OC-1.

What is the difference between a multiplexor and a demultiplexor?

The technique of transmitting multiple signals over a single medium is ____________________.

The human ear can hear sounds only within a certain range, which for an average person is 10 Hz to 40 kHz (40,000 Hz).

Since time division multiplexing was introduced, it has split into two roughly parallel but separate technologies: synchronous time division multiplexing and ____ time division multiplexing.

____ uses different wavelength (frequency) lasers to transmit multiple signals at the same time over a single medium.

A ____ multiplexes 24 input channels together onto one high-speed telephone line.

SDH was developed in Europe by ITU-T.

____________________ is a relatively new technology that has been used extensively by both the military and cellular telephone companies.

The T-1 system is a classic application of frequency division multiplexing.

____ multiplexing is the multiplexing technique used to support SONET.

A T-1 system multiplexes _______ into each frame.