Free Essay

Business Networking

In: Computers and Technology

Submitted By Farhan2c
Words 459
Pages 2

1. Use the ASCII code to indicate the 7-bit code representation for the following: .5 pts each
A. T 1010100

B. ! 0100001

C. g 1100111

D. r 1110010

2. Now, add odd parity to each of the codes in problem 1A and 1B above, placing the parity bit in the most significant digit. Add even parity to each of the codes in problem 1C and 1D above, placing the parity bit in the most significant digit. .5 pts each
A. T 01010100

B. ! 10100001

C. g 11100111

D. r 01110010

3. What are the capabilities of even single bit parity? .5 pts each
A. It can detect the presence of errors when there are how many errors present?

B. It can correct how many errors?

C. How are these capabilities different for odd parity?

4. Determine the decimal equivalent value for each of the following binary numbers .5 pts each
A. 10101011


B. 10011101


C. 11100111

5. Determine the binary representation for each of the following decimal numbers. .5 pts each
A. 139

B. 272
100010000 (more than 8 bit since the number is greater then 255)

C. 79

6. How many bits are needed to uniquely represent a code that contains:
.5 pts each
A. 312 different symbols
2^9 = 9 bits
B. 195 different symbols
2^8 = 8 bits
C. 45 different symbols
2^6 = 6 bits

7. The Canon EOS 1200D/Rebel T5 digital camera has the potential to provide an uncompressed video stream output with a per frame resolution of 5184 x 3456 pixels. The camera has a max rate of 3 fps. The camera also has a capability of depicting 1024 different colors for each pixel. 1 pt each
A. How many bits are required to represent each pixel?

B. What is the minimum bit rate required to satisfactorily transmit this camera’s uncompressed bit stream?

C. How much data storage is required to store in bytes 3 minutes of video shot by this camera? 8. An 8 x8 data matrix has been received as shown below. The parallel parity bits are shown, assuming EVEN parity. Determine if any errors are present, and IF POSSIBLE, correct them., 1 pt

1 0 1 1 0 1 0 0 0

0 1 0 1 1 1 1 0 1

1 0 0 0 0 1 1 0 1

0 0 0 0 1 0 0 0 1

1 0 1 0 1 0 1 0 0

0 1 1 0 0 0 1 0 1

1 0 1 0 0 0 1 1 1

0 0 0 1 1 0 0 1 1

0 0 0 1 0 0 1 0…...

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