Question
In: Computer Science
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 moving the file from Host A to
Host B. What would the answer be if the link propagation delay,
let's call it d, was not negligible?
Solutions
venereology answered 1 year agoRelated Solutions
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...
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...
We are sending a MP3 file of 1,000,000 bits from a source host to a destination...
We are sending a MP3 file of 1,000,000 bits from a source host
to a destination host. All links in the path between source and
destination have a bandwidth of 10 Mbps. Assume that the
propagation speed is 2.5 * 10 8 meters/sec, and the distance
between source and destination is 10,000 km.
1. Now suppose there are two links between source and
destination, with one switch connecting the two links. Each link is
5,000 km long. Again suppose the...
Suppose Host A wants to send a large file to Host B. The path from Host...
Suppose Host A wants to send a large file to Host B. The path
from Host A to Host B has three links, of rates R1 = 200 kbps, R2 =
2 Mbps, and R3 = 1 Mbps. Assuming no other traffic in the network,
what is the average throughput for the file transfer? Suppose the
file is 4 million bytes, on average, how long will it take to
transfer the file to Host B? Repeat (a) and (b), but...
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.
1. A file of size 500 MB is to be transferred from host H1 to host...
1. A file of size 500 MB is to be transferred from host H1 to
host H2 through routers R1, R2 and
R3. See Figure 1 below.
h1=2mbs=>R1==8mbs=>R2==10mbs==>R3=1mbs==>h2
(a) If the file is transmitted is one entity, without dividing it
into smaller chunks, estimate
how long it would take for the file to arrive at the receiver. [4
marks]
(b) If the file is first divided into smaller chunks, and each
chunk is transmitted and then
combined, estimate how long...
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...
How long does it take to send a 15 MiB file from Host A to Host...
How long does it take to send a 15 MiB file from Host A to Host
B over a circuit-switched network, assuming:
- Total link transmission rate = 49.7 Gbps.
- Network is FDM, with 7 permitted users, each with an equal
bandwidth share.
- A link connection requires a setup time of 84.5 ms.
Your answer should be in miliseconds (ms) with one decimal place,
and without the unit (e.g. "140.6" without the quotes)
In an organization there are four Hosts (i.e. Host A, Host B, Host C and Host...
In an organization there are four Hosts (i.e. Host A, Host B,
Host C and Host D) connected to a Router (i.e. Router0). Explain in
your own words (a) what happens when each of the four Hosts send a
broadcast (b) How many broadcast domains are on the Router0? (c) If
the Router (i.e. Router0) is replaced by a hub, how many broadcast
domains are on the hub? (d) If the Router (i.e. Router0) is
replaced by a switch, how...
Create a batch file that gathers network information from a remote host. Use your VMs for...
Create a batch file that gathers network information from a
remote host. Use your VMs for this
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