Est

Front 1

Line

Back 1

Unipolar, bipolar, and polar encoding are types of blank encoding

Front 2

All of the above

Back 2

encoding has a transition at the middle of each bit

Front 3

Differential Manchester

Back 3

encoding has a transition at the beginning of each 0 bit

Front 4

Analog-to-digital

Back 4

PCM is an example of blank conversion

Front 5

1200 samples/s

Back 5

If the frequency spectrum of a signal has a bandwidth of 500 Hz with the highest frequency at 600 Hz, what should be the sampling rate, according to the Nyquist theorem?

Front 6

Twice the highest frequency of a signal

Back 6

The Nyquist theorem specifies the minimum sampling rate to be

Front 7

NRZ-L

Back 7

Which of the following encoding methods does not provide for synchronization?

Front 8

AMI

Back 8

Which encoding method uses alternating positive and negative values for 1s

Front 9

32

Back 9

Which quantization level results in a more faithful reproduction of the signal?

Front 10

A and B. Synchronization and error detection.

Back 10

Block coding can help in blank at the receiver

Front 11

Parallel

Back 11

In blank transmission, bits are transmitted simultaneously, each across its own wire

Front 12

A and B. Asynchronous serial and synchronous serial

Back 12

In blank transmission, bits are transmitted over a single wire, one at a time.

Front 13

Asynchronous serial

Back 13

In blank transmission, a start bit and stop bit frame a character byte

Front 14

Variable

Back 14

In asynchronous transmission, the gap time between bytes is

Front 15

Digital to digital

Back 15

Blank conversion involves three techniques: line coding, block coding and scrambling

Front 16

Line coding

Back 16

Blank is the process of converting digital data to a digital signal

Front 17

Block coding

Back 17

Provides redundancy to ensure synchronization and inherent error detection

Front 18

Block coding

Back 18

Is normally referred to as mB/nB coding; it replaces each m bit group with ab n bit group

Front 19

Scrambling

Back 19

Provides synchronization without increasing the number of bits

Front 20

AMI and NRZ

Back 20

Two common scrambling technique

Front 21

PCM

Back 21

The most common technique to change an analog signal to digital data is called

Front 22

Sampling

Back 22

The first step in PCM

Front 23

Ideal, natural and flat top

Back 23

These are three sampling methods

Front 24

PCM; DM

Back 24

Finds the value of the signal amplitude for each sample; blank finds the change from the previous sample

Front 25

Asynchronous

Back 25

In blank transmission, we send 1 start bit(0) at the beginning and 1 or more stop bits (1s) at the end of each byte

Front 26

Synchronous

Back 26

In blank transmission, we send bits one after another without start or stop bits or gaps. It is responsibility of the receiver to group the bits

Front 27

Isochronous

Back 27

The blank mode provides synchronization for the entire stream of bits must. In other words, it guarantees that the data arrive at a fixed rate.

Front 28

Self-synchronizing

Back 28

A blank digital signal includes timing information in the data being transmitted

Front 29

Base

Back 29

In decoding a digital signal, the receiver calculates a running average of the received signal power, called the

Front 30

Data; signal

Back 30

The blank rate defines the number of data elements sent in 1 s; the blank rate is the number of signal elements sent in 1s

Front 31

Baud

Back 31

The signal rate is sometimes called the blank rate

Front 32

Bit

Back 32

The data rate is sometimes called the blank rate

Front 33

Unipolar

Back 33

In a blank scheme, all the signal levels are on one side of the time axis, either above or below.

Front 34

NRZ-L

Back 34

In blank level of the voltage determines the value of the bit

Front 35

Manchester

Back 35

The idea of RZ and the idea of NRZ-L are combines into the blank scheme