Question
In: Computer Science
Effect on pipelining We consider the transmission of a message between 2 host A and B...
Effect on pipelining
We consider the transmission of a message between 2 host A and B via a router. We dispose of the following information :
- the distance between each host and the router is 1500m.
- the speed of propagation = 360.000 km/s(speed of light)
- the size of each message = 1500 octets.
- the speed of the link between host and router = 1Mb/s
- the delay of treatment of a message in the router = 10ms
1) What is is the total delay to send a message from A to B ?
2) If we use the Stop and Wait protocol to send a message from A to B and the message size ACK = 64 octets, what is the utilization rate ?
3) If we use the Go-back-N protocol, with a time frame of size N, what is the value of N that maximize the flow control?
Solutions
venereology answered 16 hours agoRelated Solutions
We are sending a MP3 file of 300,000 bits from Host A to Host B. Host...
We are sending a MP3 file of 300,000 bits from Host A to Host B.
Host A and B are each connected to a switch S via 100 Mbps links.
Assume that each link introduces a propagation delay of 10 µs
(microsecond). Calculate the total transfer time of the entire file
(from first bit sent to last bit received) for the following:
Suppose the MP3 file is sent as one message. S is a
store-and-forward device; it begins retransmitting immediately...
Consider a scenario where Host A and Host B want to send messages to Host C....
Consider a scenario where Host A and Host B want to send
messages to Host C. Hosts A and C are connected by a channel that
can lose and corrupt (but not reorder) messages. Hosts B and C are
connected by another channel (independent of the channel connecting
A and C) with the same properties. The transport layer at Host C
should alternately deliver M (M>1) consecutive messages received
from A to its application layer and N (N>1) consecutive messages...
Consider sending a large file of F bits from Host A to Host B. There are...
Consider sending a large file of F bits from Host A to Host B.
There are three links (and two switches) between A and B, and the
links are uncongested (that is, no queuing delays). Host A segments
the file into segments of S bits each and adds 80 bits of header to
each segment, forming packets of L=80+
S bits. Each link has a transmission rate of R bps. Find the value
of S that minimizes the delay of...
Consider sending a large file of F bits from Host A to Host B. There are...
Consider sending a large file of F bits from Host A to Host B.
There are three links (and two switches) between A and B, and the
links are uncongested (that is, no queuing delays). Host A segments
the file into segments of S bits each and adds 80 bits of header to
each segment, forming packets of L=80+ S bits. Each link has a
transmission rate of R bps. The link propagation delay, let's call
it d, was not...
Suppose there are 4 routers in sequence between Host A and Host B, all of which...
Suppose there are 4 routers in sequence between Host A and Host
B, all of which use store-and-forward routing. What is the total
end-to-end delay for a packet originating from Host A with
destination Host B, under the following conditions.
◘ Each of the link transmission rates are 9.4 Mbps
◘ The total distance from Host A to Host B along its path of
transmission is123.4 km
◘ The speed of propagation through the transmission medium is is
2.5 x...
Suppose we want to transmit the message 0010 1101 and detect transmission errors using the CRC...
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?
Principles of Epidemiology and Disease Transmission. Consider the differences between direct and indirect transmission. Provide a...
Principles of Epidemiology and Disease Transmission. Consider
the differences between direct and indirect transmission. Provide a
scenario for each. As a health educator, how would you work to
educate one individual in each scenario to prevent disease
transmission in the future?
Suppose there are 5 links between sending host A and receiving host B, where each link...
Suppose there are 5 links between sending host
A and receiving host B, where each link has the same transmission
rate R.
What is the end-to-end delay of sending 10 packets of
length L from A to B? (Ignore propagation delay and nodal
processing delay). Assume there are no other packets on the
network.
Problem 1: Digital Transmission Over Noisy Channels. Consider transmitting a two digit message over a noisy...
Problem 1: Digital Transmission Over Noisy Channels.
Consider transmitting a two digit message over a noisy channel
having error probability P(E) = 1/5 per digit. Let X be the random
variable that represents the number of possible errors.
(1a). What is the probability that no (zero) error occurs?
(1b). What is the probability that one error occurs?
(1c). What is the probability that more than one error
occurs?
(1d). Write the expression for the p.d.f. pX(x) and plot it.
(1e)....
Consider the message ‘is he it she is this is it is’. (Include space between each...
Consider the message ‘is he it she is this is it is’. (Include
space between each word also as a symbol)
Obtain:
Binary equivalent of each symbol
Average code length
Information content for each symbol
Coding efficiency η in %
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- Consider the three stocks in the following table. Pt represents price at time t, and Qt...
- Butterfly Tractors had $21.50 million in sales last year. Cost of goods sold was $9.50 million,...
- Discussion Questions: What impact will Brisson’s decision to manufacture MS-7 have on the cost structure of...
- An investment will pay $100 at the end of each of the next 3 years, $250...
- Due to concerns about the spread of coronavirus, representatives from athletic leagues across the globe have...
- Apple has just paid a quarterly dividend of $3.69. Dividends are expected to grow by 10%...
- You are told today that you’ll inherit a castle from your uncle in 5 years. You’ll...
ADVERTISEMENT