cs372 quiz1
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San Francisco State University *
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103
Subject
Computer Science
Date
Apr 29, 2024
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docx
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3
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Questions
Answers
Convert the following units. Your answer should be a whole number with no text in the answer field: 13.02 Mbps = _____ bits per second
13,020,000
Convert the following units. Your answer should be a whole number with no text in the answer field: 49.19 Kbps = _____ bits per second
49,190
What is the total utilization of a circuit-switched network, accommodating five users with equal bandwidth share, and the following properties:
Two users each using 64% of their bandwidth share
Two users each using 45% of their bandwidth share
One user using 24% of their bandwidth share
Give answer in percent, with one decimal place (normal rounding) and no percentage sign (e.g. for 49.15% you would enter "49.2" without the quotes).
48.4
Suppose there are 2 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 7.4 Mbps
The total distance from Host A to Host B along its path of transmisison is 104.6 km
The speed of propagation through the transmission medium is is 2.5 x 108 m/s
The packet size is 3 KiB
Remember that you must also uplink from Host A to the first router. Give answer in milliseconds, rounded to 1 decimal place, without units (e.g. for 0.12345 seconds you would enter "123.5" without the quotes).
10.4
Given a link with a maximum transmission rate of 34.9 Mbps. Only two computers, X and Y, wish to transmit starting at time t = 0 seconds. Computer X sends fileX (10 MiB) and computer Y sends fileY (355 KiB), both starting at time t = 0.
Computer X gets the transmission medium first, so Computer Y must wait.
For the following calculations, assume maximum transmission rate during transmission.
2.41
Suppose that entire files are sent as a stream (no packets, no multiplexing).
At what time (t = ?) would FileX finish transmitting?
Give answer in seconds, without units, and round to two decimal
places (e.g. for an answer of 12.4567 seconds you would enter "12.46" without the quotes)
In the Internet protocol stack, the _____ is responsible for finding the destination IP address.
Application Layer
In the Internet protocol stack, the _____ is responsible for process-to-process communication.
Transportation Layer
Please place the following in the order of the OSI layering model.
Layer 7: Application Layer
Layer 6: Presentation Layer
Layer 5: Session Layer
Layer 4: Transport Layer
Layer 3: Network Layer
Layer 2: Link Layer
Layer 1: Physical Layer
When a packet is passed down to the next lower layer, it is _____________ into the lower-layer packet.
encapsulated
In the Internet protocol stack, if a data transfer is connection-
oriented, it is implemented at the _____.
Transport Layer
Please select all examples of systems using unguided media.
Human speech
Signal flares
802.11 Wifi Home Networks
Global Positioning System (GPS
Merging multiple communication streams into the same media is
called _________?
multiplexing
__________ is designed to act like a server, and can distribute data from an infected computer to a remote host upon request.
Spyware
What transport-layer services are provided by the base UDP protocol? (Check all that apply)
None of these services are provided by UDP
A program running on a host is called a _____
process
In the internet, an application-level protocol implemeting web browsing would most likely utilize _____ as its transport-layer protocol.
TCP
The minimum necessary information for identifying a process on a remote host would be (check all that apply):
Remote Host IP
Remote Port Number
In a _____ architecture, one host is always on, and other hosts may connect and be handed off amongst themselves by this first host.
hybrid client-server/P2P
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Related Questions
7. Determine the hexadecimal equivalent of the following Ethernet address:
01011010 00010001 01010101 00011000 10101010 00001111
A. 5A:11:55:18:AA:0F
В. OF:AA:18:55:11:5A
C. A5:11:55:81:AA:F0
D. 5A:88:AA:11:55:F0
arrow_forward
For the following stream of digital signal which is being transmitted by bit rate 5 Kbps:
101100000000110
a) Draw the waveform for all line codes you studied.
b) Determine if the line code is self synchronized or not.
c) Determine if the code can be used with ac coupling or not
d) Determine the Bandwidth of the line code
e) Which code is used in magnetic recording
f) Which code is used in LAN
arrow_forward
In asynchronous transmission, why does the time gap between bytes fluctuate?
arrow_forward
A line has a signal-to-noise ratio of 1000 and a bandwidth of 4000 kHz. What is the maximum data rate supported by this line?
If the bandwidth of the channel is 5 kbps, how long does it take to send a frame of 100,000 bits out of this device?
What is the maximum data rate of a channel with a bandwidth of 200 kHz if we use four levels of digital signaling?
arrow_forward
Bit or symbol transmission time: Based on the maximum gross bit rate (the transmission rate) R in Mbit/s (or Mbps), calculate the bit transmission Time Tb=1/R in microseconds . (Alternatively, you may calculate the symbol transmission time Ts=1/fSym¸where fSym is the symbol rate in baud.)
arrow_forward
Conversion of Bandwidths
Convert the bandwidths given below then provide on .
Given bandwidth
Convert into
Converted Unit
1. 1,000 kbps
2. 6,056,389 bps
3. 8.380 Gbps
4. 7,890,389,560 kbps
5:5 Tbps
mbps
gbps
mbps
tbps
kbps
arrow_forward
A frame size 10 million bytes is being sent on a link with with bandwidth of 8
Mbps. The total transmission time is (a.) 1 sec: (b.) 2 secs: (c.) 5 secs: (d.) 10 secs:
(e) 20 secs: (f) 50 secs: (g) 100 secs
Choose
arrow_forward
Why does asynchronous transmission have a non-constant delay between bytes?
arrow_forward
III. The figure below shows synchronous TDM, the data rate for each input connection is 1 Mbps. If 1 bit at a
time is multiplexed, Find (a) the input bit duration, (b) the output bit duration, (c) the output bit rate, and (d) the
output frame rate.
1
1
...
1 1 1
1 Mbps
Frames
... 0
0
0
0 0
1 Mbps
0101 0001 1101 0001 0101
1
...
0
1
0
MUX
1
1 Mbps
*** 0
0
1
0
0
1 Mbps
arrow_forward
What causes variations in the time interval between bytes during asynchronous transmission?
arrow_forward
Paralell computing
Consider the following: the latency of an interconnect is 2 seconds, and the bandwidth is 64 bytes per second.
Calculate the time it takes to transmit a message of size 256 bytes ?
arrow_forward
What causes the time interval between bytes in asynchronous transmission to vary?
arrow_forward
A 5 kHz channel transmits a signal experiencing SNR of 31. What is the maximum Bit Rate of the channel?
25,000bps
25Mbps
5Kbps
50Kbps
arrow_forward
III. The figure below shows synchronous TDM, the data rate for each input connection is 1 Mbps. If 1 bit at a
time is multiplexed, Find (a) the input bit duration, (b) the output bit duration, (c) the output bit rate, and (d) the
output frame rate.
1
1
1 1 1
1 Mbps.
1 Mbps
1 Mbps
1 Mbps
... 0
.... 1
0
0
0
0
0 0 0
1
1
0
0
1
0
MUX
Frames
0101 0001 110100010101
arrow_forward
a. Assume your university library has a million books. Calculate the number of bytes of data if all of these books were stored online and accessible through a computer network (to the closest order of magnitude). b. How long does it take to transmit the full library of books if the transmission medium's data rate is 10 Mbps, the original Ethernet's speed? If we have a 1 Gbps connection, how long will it take? (The time it takes to download your whole college library is represented by this number.)
arrow_forward
Represent the following decimal numbers in IEEE 745 single precision:
(a) 34.375
(b) -0.045
. Convert the following IEEE 745 single precision to decimal number:
(a) 1 10000100 01110000000000000000000
(b) 0 01111100 11100000000000000000000
. List the types of transmission modes.
arrow_forward
Why does the time between bytes change during asynchronous transmission?
arrow_forward
III. The figure below shows synchronous TDM, the data rate for each input connection is 1 Mbps. If 1 bit at a
time is multiplexed, Find (a) the input bit duration, (b) the output bit duration, (c) the output bit rate, and (d) the
1 Mbps
...
output frame rate.
Frames
1 Mbps
...
Oi010001110100010101
MUX
...
1 Mbps
1
...
1 Mbps
arrow_forward
What is the channel capacity for a
communication channel with a
bandwidth of 1 MHz, 1 W transmitted
?power and total noise power of 1 mW
9.97 MHz O
6.645 MHz
1 MHz
1.442 kHz
arrow_forward
For data is transmitted over twisted-pair cable, you have these characteristics: A signal's power on the channel is 60 dB, signal attenuation is 2 dB per 100 meters, and average noise power on the cable is 0.15 dB per meter. Answer the following questions: What's the S/N ratio at the end of a 60-meter channel? What's the S/N ratio at the end of a 1.5-kilometer channel? What's the maximum channel length if the receiving device requires at least 25 dB of S/N ratio for reliable operation?
arrow_forward
Suppose, you have 6 voice channels, each
of 60MBPS. You have to use synchronous TDM
to multiplex these channels. If 2 characters at a
time are multiplexed (2 characters in each
output slot), answer the following:
What is the size of an output frame in bits?
What is the output frame rate?
What is the duration of an output frame?
What is the output data rate?
Input bit duration?
Output bit duration?
Output slot duration?
arrow_forward
IP Addressing and Subnetting
Problem Solving
Perform what is being asked. Compute the following values for each Item. Write your name, section, and
answers (with complete solution) on a clean sheet of paper.
A. Convert the following dotted binary into dotted decimal notation. i
1. 11101001.00011011.10000000.10100100
2. 10101010.00110100.11100110.00010111
3. 11111111.11010011.01000001.11001110
B. A company wants to extend IP ranges for their network with a given site of 89.63.200.0 divided
into 20 individual networks. Find the following:
Custom Subnet Mask
IP Address Ranges (
Number of Subnets and Hosts (.
C. Shorten the following IPV6 addresses: (
1. FD81:273B:6A9D:0000:0DA6:CACD:2347:3596
2. FD56:0000:004D:E798:F100:2344:1002:3461
3. FD00:8E00:006c:0000:0006:B761:AABD:0034
arrow_forward
SEE MORE QUESTIONS
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Related Questions
- 7. Determine the hexadecimal equivalent of the following Ethernet address: 01011010 00010001 01010101 00011000 10101010 00001111 A. 5A:11:55:18:AA:0F В. OF:AA:18:55:11:5A C. A5:11:55:81:AA:F0 D. 5A:88:AA:11:55:F0arrow_forwardFor the following stream of digital signal which is being transmitted by bit rate 5 Kbps: 101100000000110 a) Draw the waveform for all line codes you studied. b) Determine if the line code is self synchronized or not. c) Determine if the code can be used with ac coupling or not d) Determine the Bandwidth of the line code e) Which code is used in magnetic recording f) Which code is used in LANarrow_forwardIn asynchronous transmission, why does the time gap between bytes fluctuate?arrow_forward
- A line has a signal-to-noise ratio of 1000 and a bandwidth of 4000 kHz. What is the maximum data rate supported by this line? If the bandwidth of the channel is 5 kbps, how long does it take to send a frame of 100,000 bits out of this device? What is the maximum data rate of a channel with a bandwidth of 200 kHz if we use four levels of digital signaling?arrow_forwardBit or symbol transmission time: Based on the maximum gross bit rate (the transmission rate) R in Mbit/s (or Mbps), calculate the bit transmission Time Tb=1/R in microseconds . (Alternatively, you may calculate the symbol transmission time Ts=1/fSym¸where fSym is the symbol rate in baud.)arrow_forwardConversion of Bandwidths Convert the bandwidths given below then provide on . Given bandwidth Convert into Converted Unit 1. 1,000 kbps 2. 6,056,389 bps 3. 8.380 Gbps 4. 7,890,389,560 kbps 5:5 Tbps mbps gbps mbps tbps kbpsarrow_forward
- A frame size 10 million bytes is being sent on a link with with bandwidth of 8 Mbps. The total transmission time is (a.) 1 sec: (b.) 2 secs: (c.) 5 secs: (d.) 10 secs: (e) 20 secs: (f) 50 secs: (g) 100 secs Choosearrow_forwardWhy does asynchronous transmission have a non-constant delay between bytes?arrow_forwardIII. The figure below shows synchronous TDM, the data rate for each input connection is 1 Mbps. If 1 bit at a time is multiplexed, Find (a) the input bit duration, (b) the output bit duration, (c) the output bit rate, and (d) the output frame rate. 1 1 ... 1 1 1 1 Mbps Frames ... 0 0 0 0 0 1 Mbps 0101 0001 1101 0001 0101 1 ... 0 1 0 MUX 1 1 Mbps *** 0 0 1 0 0 1 Mbpsarrow_forward
- What causes variations in the time interval between bytes during asynchronous transmission?arrow_forwardParalell computing Consider the following: the latency of an interconnect is 2 seconds, and the bandwidth is 64 bytes per second. Calculate the time it takes to transmit a message of size 256 bytes ?arrow_forwardWhat causes the time interval between bytes in asynchronous transmission to vary?arrow_forward
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SEE MORE QUESTIONS
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ISBN:9781305080195
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A+ Guide to Hardware (Standalone Book) (MindTap C...
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