Reference no: EM13861904
1. 1>Baud rate and data rate could be used interchangeably because their meanings are equivalent.
True_ False_
And explain:
ADSL uses base band for transmission of signals.
True_False_
And explain:
2. Describe in details at least four critiques of the OSI MODEL and its protocols.
3. a>If a 16-level signal is sent over a 100KHz channel whose SNR=37dB what is the maximum achievable data rate? Show all your work.
b> Explain why Fourier Analysis is one of the most important theoretical basis for data communications. There is no need to give me the formula. Just explain in your own wording.
4. List and explain the four methods of framing in the data link layer. Then describe a disadvantage of each of methods.
5. We have a simplistic broadcast subnet. Suppose that time is divided into discrete slots, with each host of the n hosts attempting to use the channel with probability p during each slot.
a> What fraction of the slots is wasted due to inactivity?
b> What fraction of the slots is used for successful transmissions?
6. Given the bit stream below, draw the line codes for NRZ, NRZI, Manchester and Bipolar encoding.
a> Draw the signals in the table below.
|
Bit stream
|
1
|
0
|
1
|
0
|
1
|
0
|
1
|
0
|
|
NRZ
|
|
|
NRZI
|
|
|
Manchester
|
|
|
Bipolar
|
|
b> Which signal shown has the lowest frequency? Explain why.
7. Multiplexing
a> Explain the differences among TDM, FDM and CDM.
b> Given the chip sequences of four station, E,F,G and H:
|
E
|
-1
|
-1
|
-1
|
-1
|
-1
|
-1
|
-1
|
-1
|
|
F
|
-1
|
1
|
-1
|
1
|
-1
|
1
|
-1
|
1
|
|
G
|
-1
|
-1
|
1
|
1
|
-1
|
-1
|
1
|
1
|
|
H
|
1
|
1
|
1
|
-1
|
-1
|
-1
|
1
|
-1
|
Show me if the chip sequences are valid. Explain why yes or no.(Hint: orthogonal property)
c> Another set of stations (Station A,B,C and D) are transmitting. A CDMA receiver gets the following chips: (0 -2 +2 0 +2 +2 0 0). Show me which stations transmitted, and which bits each station sent. The chip sequences for station A,B,C and D are listed as follows:
|
A
|
-1
|
-1
|
-1
|
1
|
1
|
-1
|
1
|
1
|
|
B
|
-1
|
-1
|
1
|
-1
|
1
|
1
|
1
|
-1
|
|
C
|
-1
|
1
|
-1
|
1
|
1
|
1
|
-1
|
-1
|
|
D
|
-1
|
1
|
-1
|
-1
|
-1
|
-1
|
1
|
-1
|
|
Predict the microsoft office component
: Submit all files and written responses at the same time as one (1) complete submission. Screenshot File Submission: You must submit the screenshot file(s) using the provided Assignment Submission Attach File function located in the Blackboard online ..
|
|
Guidelines regarding the initial comment section
: Observe the usual guidelines regarding the initial comment section, indenting, and so on. In addition, In if-else statements, indent statements to be executed for if or else condition three spaces. Align else or else if with corresponding if. I..
|
|
Demonstrate your understanding of the topics
: Your Case Study is due by the end of Week 4. There will be a penalty for late submissions (See Syllabus for Details).The key to this assignment is to demonstrate your understanding of the topics, not to re-word the text or reference material. Please ..
|
|
Displays the total amount for each service category
: ?? P7.17Write a program that reads a text file as described in Exercise P7.16, and that writes a separate file for each service category, containing the entries for that category. Name the output files Dinner.txt, Conference.txt, and so on.
|
|
Interchangeably because their meanings are equivalent
: 1. 1>Baud rate and data rate could be used interchangeably because their meanings are equivalent. True_ False_ And explain:
|
|
Damaged lithium ion battery explodes
: Jared Newman @onejarednewman pdfcrowd.comopen in browser PRO version Are you a developer? Try out the HTML to PDF API Microsoft blends the old and new with Windows 10 Damaged Lithium Ion battery explodes
|
|
What are the basic network management functions
: (1) What are the basic network management functions: OAMP? (2) Describe what are in SNMPv1
|
|
Large data sets
: To complete this assignment you must submit an electronic copy to BlackBoard by the due date. Download the starter files. To download the files from Google Drive, click the download button -- do not open the files in Google. Please follow the naming ..
|
|
Value of the new division align with the company''s mission
: value of the new division align with the company's mission and vision
|