We want to compute Cyclic Redundancy Check (CRC) for the given
the data bits D=110001, generator G=1001, and 3 CRC bits (i.e.,
r=3),.
Explain the algorithm and implement the CRC computation in a
programming language (e.g., C, C++, and Python) with the above
setting.
analyze cyclic redundancy check CRC using the following
subheading
i. concept explanation
ii. method used for implementing CRC
iii. Illustration of each method
iv. merits and demerits in relation to performance
Cyclic Redundancy Check
Given the data bits D = 110100101011, the generator G = 110011, r =
5.
1) Find the CRC. Give the detailed steps of your
computation.
2) What does the sender send?
3) Show how the receiver verifies the received data. Assume
there is no error. (mostly need help with this step!)
Using CRC method, calculate the Checksummed message to send
throw the medium if:
Message = 101011
Cx=x3+x2+1
Q2) Explain how the ‘Stop and
Wait’ flow control method is working?
Q3) Explain the differences between
Go-Back-N and Selective Repeat
sliding window flow control methods?
Using CRC method, calculate the Checksummed message to send
throw the medium if:
Message = 101011
Cx=x3+x2+1
Q2) Explain how the ‘Stop and
Wait’ flow control method is working?
Q3) Explain the differences between
Go-Back-N and Selective...
Suppose we want to transmit the message 10011010 and protect it
from errors using the CRC polynomial x2+1.
(8 points) Encode the data bit sequence using the generator
polynomial and give the code word.
(8 points) Using this polynomial, can all single-bit errors be
detected? If not, give an example scenario of errors that goes
undetected.
Suppose we want to transmit the message 0010
1101 and detect transmission errors using the CRC divisor
polynomial
(x3+x2+1).
A.) [15 marks] Determine the bit string that should be
transmitted.
B.) [15 marks] If the leftmost 1-bit
of the transmitted string is inverted due to noise on the link,
what is the result of the receiver's CRC calculation?
4) 25%
A)
Using the following information, Compute NPV if we proceed
TODAY as if there is no option
B)
Using the real option methodology of ch. 26, should Bert wait a
year if they will "know" which cash flow
will occur? Compute NPV of waiting! Use WACC to
discount ALL cash flows!! Should we "wait" or proceed
"now"??
Bert is considering purchase =
$ 18,000
20
= Years project will go on
Net Cash Flows =
$ 2,950
11%...
Using the following sample data; 6, 7, 11, 6, 11, 5, 15, 11,
5;
Compute the sample standard deviation using either the computing
formula or the defining formula.
A.
3.6
B.
3.5
C.
3.4
D.
3.3
Check the requirements for confidence intervals using the
following information:
Suppose we want to estimate the proportion of American teenagers
who would rather own movies physically vs those who would rather
own movies digitally. A survey of 45 American teenagers finds that
12 of them would rather own movies physically. With this
information, you plan to create a 95% Confidence Interval for the
true proportion of Americans who would rather own movies
physically.
Conditions:
i. The method of sampling ...