CS 2204 Self-Quiz Unit 2
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Self Quiz Unit 2
Started on
Wednesday, 24 April 2024, 12:38 PM
State
Finished
Completed on
Wednesday, 24 April 2024, 12:41 PM
Time taken
3 mins 32 secs
Grade
10.00
out of 10.00 (
100
%)
Question
1
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Question text
Different VLANs can usually be connected together via:
Question 1Select one:
a.
An IP router
b.
A straight Ethernet cable
c.
A hub
d.
A firewall
Feedback
Your answer is correct.
The correct answer is: An IP router
Question
2
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A common recommendation is to have no more than _____ hosts per LAN or VLAN
Question 2Select one:
a.
10
b.
1000
c.
100
d.
100000
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Your answer is correct.
The correct answer is: 1000
Question
3
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A VLAN looks like a single LAN and all VLAN members will see broadcast packets sent by
other members.
Question 3Select one:
True
False
Feedback
The correct answer is 'True'.
Question
4
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Ethernet switches have an additional privacy advantage in that traffic does not flow where it does not need to flow.
Question 4Select one:
True
False
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The correct answer is 'True'.
Question
5
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Question text
Ethernet LAN-layer addresses are most often called MAC addresses.
Question 5Select one:
True
False
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Question
6
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Manchester encoding is principally designed to
Question 6Select one:
a.
Ensure that a transition occurs in the centre of each bit period
b.
Increase the bandwidth of a signal transmitted on the medium
c.
Have more than one symbol per bit period
d.
Ensure that the line remains balanced
Feedback
The correct answer is: Ensure that a transition occurs in the centre of each bit period
Question
7
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Question text
Gigabit Ethernet 1000Base-T uses the following encoding:
Question 7Select one:
a.
Manchester
b.
AMI
c.
4B/5B
d.
PAM-5
Feedback
Your answer is correct.
The correct answer is: PAM-5
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Related Questions
200 nodes are connected to a 1,500 metre length of coaxial cable. Using some protocol, each node can transmit 50 frames/second, where the average frame length is 2,000 bits. The transmission rate at each node is 100 Mbps (where 1 Mbps = 1,000,000 bps). What is the efficiency of this protocol?
arrow_forward
Question 3
Consider the network shown below.
10:D4:E1:A8.97 FO
20:FF:3A:BC:01:4E
АВ.22:АA:ВB:34:01
(1)
(3)
Switch
Switch
AA:10 F3:5C:01:04
N BB:89:34:E7:01:38
AB:20:FA:5B:02:14
(2)
Switch
FTP Server
The table below shows the IP addresses of PC A, PC B, and Server C where Server C runs FTP
services.
Machine IP Address
PC A
172.16.0.5
РС В
172.16.1.7
Server C
172.16.2.254
A user on PC A initiates a conversation with Server C to download a file using FTP protocol. The
request use a local port number 1026 to establish a TCP session to the FTP server on Server C.
Find the source and destination MAC addresses, the source and destination IP addresses of the
request at points (1) and (2).
Student Input
Specification
Source MAC:
Destination MAC:
Source IP address:
Destination IP address:
At point (1)
At point (2)
Source MAC:
Destination MAC:
Source IP address:
Destination IP address:
What are the source and destination port numbers in the TCP segments send from PC A to the
server C?…
arrow_forward
Consider an ethernet with length of the cable is 1800 meter and speed of the signal cable is 3 x 10^8 m/s, transmission time is 45 microsec, the (%) of time channel remains idle. (Upto 2 decimal place)
Correct answer get upvote. Incorrect get downvote
arrow_forward
200 nodes are connected to a 1,500-meter length of coaxial cable. Using some protocol, each node can transmit 50 frames/second, where the average frame length is 2,000 bits. The transmission rate at each node is 100 Mbps (where 1 Mbps = 1,000,000 bps). What is the efficiency of this protocol?
arrow_forward
Consider building a CSMA/CD network running at 10Mbps over a
cable with no repeaters. If the signal speed in the cable is 106 km/sec
and minimum frame size is 1500 bytes, then what is the cable length
(km)?
arrow_forward
Path: p
Words
QUESTION 13
A Television broadcasting service uses a single coaxial cable with a bandwidth of 680 MHz to transmit multiple TV channels to their subscribers.
Each TV channel is 6 MHz wide. How many channels can be carried if each channel has to be separated by a 1 MHz guard band?
TTTArial
3 (12pt)
T
Word
Path: p
arrow_forward
A data channel at 5 Gbps is shared by two users. Assume that each user is transmitting at 2.5Gbps data rate continuously. Each user only transmits only 30% of the time.
(a) If circuit switching is used, how many users can be supported?
(b) If packet switching is used, would there be queuing delay to accommodate these two users? If a third identical user is added will there be a queuing delay?
(c) What is the probability that a user is sending data?
(d) Now assume three users under packet switching. Compute the probability that at any given time all three are transmitting at the same time. What is the fraction of time when the queue is growing?
arrow_forward
Suppose we have a reservation system with 50 users, frame transmission time of 0.6 sec, v = 0.3.
(a) What is the effective frame transmission time?
(b) What is the efficiency/throughput if all stations are transmitting?
(c) What is the efficiency/throughput if a minislot can reserve up to 7 frames?
arrow_forward
Discuss any two constraints of computer networks based on shared media with the aid of suitable illustrations.Are there any differences between half duplex traditional Ethernet, half duplex fast Ethernet, and half duplex gigabit Ethernet in terms of slot time and maximum network diameter? Explain!If a company has a single Fast Ethernet hub, it may divide its network into three Fast Ethernet hubs linked by one Fast Ethernet switch to form a Fast Ethernet LAN. Are split networks more efficient than their original counterparts? With the aid of a suitable diagram, explain.
arrow_forward
Computer Network
Question:
Mr. Hadi sent an email using 01 Gbps network bandwidth which contained a message size of 2.5-KB (Kilobyte) . Mr. John is X km away from sender (where X is 149) who received email at speed of light travels at 2.4 × 108 m/s. You may need to calculate propagation time and the transmission time for the entire communication, and also discuss the dominant factor in this communication. Draw the figure by labelling all above mentioned values and add screen shot in your answer along with your solution.
arrow_forward
can a network path have high bandwidth and high propagation delay? explain your answer
arrow_forward
Suppose that our network is made of two computers. The computers are connected to eachother with three separate cables (links). The probability to fail for the first cable is 10%., for thesecond cable is 20% and for the third cable is 30%. What is our network reliability? Explain theresult and how it was calculated.
arrow_forward
The three links in the following figure have the same transmission rate 1Gbps, same length 2 Km, and the same
propagation speed 1. 8 106 m/s. The two router have processing delay equal to 10 microseconds and a queuing delay equal
to 1 nanosecond. A packet of 1000 bit is to be transmitted from the client to the server.
...
+Link 1+
Link 2
+Link 3+
Calculate the total delay of transmission of the packet.
arrow_forward
1- TI carrier system is used:
a. For PCM voice transmission
b. For frequency modulated signals
2- Suppose an analogue audio signal is sampled 16,000 times per second, so we take sample every;
a 250 µs
b 150 us
5-
3- Which routing method best describes Bunder Gateway Procul?
a hybrid of link-state and distance vector
b-path-vector
a) Queuing delay
b) Transmission delay
fidentiar
LOVÉG
4- Which of the following authorities is responsible for assigning Autonomous System Numbers?
c- IEEE
d. JANA
ISO
b ITU-T
6- Which are QoS requirements for voice?
a) Retransmit interval less than 10 ms.
b) Jitter less than 10 ms
c- 62.5 us
d. 32.25 µs
is the variation in delay for packets belonging to the same flow,
7- Label allocation schemes are used in MPLS.
a) Unsolicited downstream
b) Downstream on demand label
distribution
8- In VLAN, what protocol is used for frame tagging?
a) ISL
b) VLANP
e link-state.
d- distance vector
10-Convert the telephone line into a high-speed digital link:
a) ADSL
b) HDSL…
arrow_forward
Your answer includes number only, thousands should be separated by a : For
example: 1,000 or 1,000,000
• Involved networking devices:
• A geostationary statellite
• Base
10Mbps a microwave link
• Every minute a photo is taken and sends to the base.
•S = 2.4 e8 m/sec
• Distance (statellite, earth) = 36,000 km
Size of the photo x for the microwave link
continuously transmitting ? bits
arrow_forward
Find correct answers referes to data and networking communication:
1. In ethernet frame, sending adapter encapsulates IP datagram (or other network layer protocol packet) and it uses preamble whick consists of :a. 4 bytes with pattern 10101010 followed by one byte with pattern 10101011.b. 7 bytes with pattern 1010111 followed by one byte with pattern 10101011.c. 2 bytes with pattern 10101010 followed by one byte with pattern 10101011.d. 7 bytes with pattern 10101011 followed by one byte wit pattern 10101010.e. 6 bytes with pattern 10101010 followed by one byte with pattern 10101011.f. 7 bytes with pattern 10101011 followed one byte with pattern 10101010.g. 7 bytes with pattern 10101010 followed by one byte with pattern 10101011.
2. The method of communication in which transaction takes place in both directions but only in one direction at a time is called?a. three answers are correctb. two answers are correctc. Multi-duplexd. Full-duplexe. four wire circuitf. simplexg. half-duplexh.…
arrow_forward
Suppose the round-trip propagation delay for Ethernet is 46.4 µs.
This yields a minimum packet size of 512 bits (464 bits
corresponding to propagation delay + 48 bits of jam signal).
(a) What happens to the minimum packet size if the delay time
is held constant, and the signalling rate rises to 100 Mbps?
(b) What are the drawbacks to so large a minimum packet size?
(c) If compatibility were not an issue, how might the
be written so as to permit a smaller minimum
specifications
packet size?
arrow_forward
A network with bandwidth of 11 Mbps can pass only an average of 21,000 frames per minute with each frame carrying an average of 11,000 bits. What is the throughput of this network?
arrow_forward
Consider the Ethernet networks shown in the below exhibit to answer the following questions.
Fa0
Fal
PC3
PCO
Fa0/1
Fa0/0
Fa0/3
Etho/D/0
Fa0/2
s1
Fa0/1
R1
Fa0
Fa0/0
Fa0/1
PC1
R2
Fa0/1
Fa0/3
S2
Fa0
PC2
The network interface settings of POs are:
Logical Address
Physical Address
PCO
192.168.2.2
0060.5032.9A15
PC1
192.168.2.3
o001.6363.6BAA
PC2
192.168.3.2
O0EO.F9A1.0864
PC3
192.168.0.2
0001.0935.08C3
The network interface settings of routers are:
Logical Address
Physical Address
R1-Fa0/0
192.168.0.1
0004.9A31.0501
R1-Fa0/1
192.168.1.1
0004.9A31.0502
R1-Etho/0/0
192.168.2.1
0060.2F70.0D9B
R2-Fa0/0
192.168.1.2
0002.1641.6301
R2-Fa0/1
192.168.3.1
0002.1641.6302
Suppose that the switching table in the S1 contains the following contents:
Fa0/1
Fa0/2
Fa0/3
Fa0/4
Open
Fa0/5
Fa0/6
Fa0/7
Fa0/8
Open
Open
Open
Open
If a frame with source MAC address 001.6363.6BAA and destination MAC address 0060.5032.9A15 is
received at the switch, at which port does the frame arrive?
Which port(s) will the frame go…
arrow_forward
A 100M-bit Ethernet has the following topology
Hub
The maximum length of each cable is 100m. The signal propagation speed is 2 x 105 km/sec and the
hub introduces a delay of 1 usec. What is the minimum frame size for this Ethernet. DO NOT
ASSUME THE STANDARD MINIMUM FRAME SIZE OF 512 BITS.
arrow_forward
7700
Part 1
Build a simple network in packet tracer as shown in below diagram.
2 Y
Fao
Laptep-PT
Teacher 1
Fa0
Fao
PC-PT
PC-PT
Ali
Farma
Fa0/1 Fa0/S
Fa0/2
Fa0/6
2950-24
Switcho
Fa0/4
Fa0
Fa0
1FA0
PC-PT
Muna
PC-PT
Saeed
Laptop-PT
Teacher 2
Use auto-cable connection to connect all network devices.
Part 2
a) Allocate the following IP addresses to given Hosts.
Ali:
10.10.0.1
10.10.10.2
10.10.10.3
10.10.10.4
Teacherl: 10.10.10.5
Teacher2: 10.10.10.6
Muna:
Fatma:
Saeed:
waila
ndov
deta
b) Check the connectivity among the devices
c) Click Muna Pc and open terminal in desktop.
d) What is Bits per second and Data bits?
Answer:
arrow_forward
17) A 1000BASE-SX Ethernet connection operates on a multimode fiber optic cable at a frequency of 353THz. What is the wavelength of the transmission channel?
850nm
85nm
8.5nm
18 ) In a telephone TDM system, a DS0 has a capacity of 64kbps and a T1 link rate is 1.544Mbps. How many simultaneous voice conversations can a T1 carry?
28
24
41
98
0.85nm
arrow_forward
Problem Solving.
Category5 cable, commonly referred to as CAT-5, is a twisted pair cable for data networks. Since 2001, the variant commonly in use is the Category5e specification (CAT-5e). The cable standard provides performance of up to 100MHz and is suitable for most varieties of Ethernet over twisted pair up to 1000BASE-T(Gigabit Ethernet).
We would like to transmit information over a CAT-5 twisted pair cable at 500 Mbps.
(a)What is the signal-to-noise ratio (SNR) of 30 dB adequate to transmit 500 Mbps?
(Convert the SNR of 30 dB to a numerical value then apply the Shannon Theorem).
(b) What is the SNR required to just adequately transmit at 500 Mbps?
Express your answer in decibels for the SNR(that is, SNRdB)
arrow_forward
CAT-6 twisted pair cable is a commonly used computer networks cable that provides afrequency bandwidth of up to 250 MHz. It is suitable for most varieties of Ethernet overtwisted pair up to 1000 BASE-T (Gigabit Ethernet). Determine whether a signal-to-noise ratio(SNR) of 20 dB is adequate to transmit 0.9 Gbps on this cable?
arrow_forward
Explain, using words and a time diagram, why ethernet (IEE 802.3) has a minimum frame size. How would the minimum frame size change if the maximum network doubled?
arrow_forward
Question 2
Trunks are typically implemented using:
Coaxial Cable
Optical Fiber
Twisted Pair
Wi-Fi
Select the appropriate response
Submit Response ✔
arrow_forward
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Related Questions
- 200 nodes are connected to a 1,500 metre length of coaxial cable. Using some protocol, each node can transmit 50 frames/second, where the average frame length is 2,000 bits. The transmission rate at each node is 100 Mbps (where 1 Mbps = 1,000,000 bps). What is the efficiency of this protocol?arrow_forwardQuestion 3 Consider the network shown below. 10:D4:E1:A8.97 FO 20:FF:3A:BC:01:4E АВ.22:АA:ВB:34:01 (1) (3) Switch Switch AA:10 F3:5C:01:04 N BB:89:34:E7:01:38 AB:20:FA:5B:02:14 (2) Switch FTP Server The table below shows the IP addresses of PC A, PC B, and Server C where Server C runs FTP services. Machine IP Address PC A 172.16.0.5 РС В 172.16.1.7 Server C 172.16.2.254 A user on PC A initiates a conversation with Server C to download a file using FTP protocol. The request use a local port number 1026 to establish a TCP session to the FTP server on Server C. Find the source and destination MAC addresses, the source and destination IP addresses of the request at points (1) and (2). Student Input Specification Source MAC: Destination MAC: Source IP address: Destination IP address: At point (1) At point (2) Source MAC: Destination MAC: Source IP address: Destination IP address: What are the source and destination port numbers in the TCP segments send from PC A to the server C?…arrow_forwardConsider an ethernet with length of the cable is 1800 meter and speed of the signal cable is 3 x 10^8 m/s, transmission time is 45 microsec, the (%) of time channel remains idle. (Upto 2 decimal place) Correct answer get upvote. Incorrect get downvotearrow_forward
- 200 nodes are connected to a 1,500-meter length of coaxial cable. Using some protocol, each node can transmit 50 frames/second, where the average frame length is 2,000 bits. The transmission rate at each node is 100 Mbps (where 1 Mbps = 1,000,000 bps). What is the efficiency of this protocol?arrow_forwardConsider building a CSMA/CD network running at 10Mbps over a cable with no repeaters. If the signal speed in the cable is 106 km/sec and minimum frame size is 1500 bytes, then what is the cable length (km)?arrow_forwardPath: p Words QUESTION 13 A Television broadcasting service uses a single coaxial cable with a bandwidth of 680 MHz to transmit multiple TV channels to their subscribers. Each TV channel is 6 MHz wide. How many channels can be carried if each channel has to be separated by a 1 MHz guard band? TTTArial 3 (12pt) T Word Path: parrow_forward
- A data channel at 5 Gbps is shared by two users. Assume that each user is transmitting at 2.5Gbps data rate continuously. Each user only transmits only 30% of the time. (a) If circuit switching is used, how many users can be supported? (b) If packet switching is used, would there be queuing delay to accommodate these two users? If a third identical user is added will there be a queuing delay? (c) What is the probability that a user is sending data? (d) Now assume three users under packet switching. Compute the probability that at any given time all three are transmitting at the same time. What is the fraction of time when the queue is growing?arrow_forwardSuppose we have a reservation system with 50 users, frame transmission time of 0.6 sec, v = 0.3. (a) What is the effective frame transmission time? (b) What is the efficiency/throughput if all stations are transmitting? (c) What is the efficiency/throughput if a minislot can reserve up to 7 frames?arrow_forwardDiscuss any two constraints of computer networks based on shared media with the aid of suitable illustrations.Are there any differences between half duplex traditional Ethernet, half duplex fast Ethernet, and half duplex gigabit Ethernet in terms of slot time and maximum network diameter? Explain!If a company has a single Fast Ethernet hub, it may divide its network into three Fast Ethernet hubs linked by one Fast Ethernet switch to form a Fast Ethernet LAN. Are split networks more efficient than their original counterparts? With the aid of a suitable diagram, explain.arrow_forward
- Computer Network Question: Mr. Hadi sent an email using 01 Gbps network bandwidth which contained a message size of 2.5-KB (Kilobyte) . Mr. John is X km away from sender (where X is 149) who received email at speed of light travels at 2.4 × 108 m/s. You may need to calculate propagation time and the transmission time for the entire communication, and also discuss the dominant factor in this communication. Draw the figure by labelling all above mentioned values and add screen shot in your answer along with your solution.arrow_forwardcan a network path have high bandwidth and high propagation delay? explain your answerarrow_forwardSuppose that our network is made of two computers. The computers are connected to eachother with three separate cables (links). The probability to fail for the first cable is 10%., for thesecond cable is 20% and for the third cable is 30%. What is our network reliability? Explain theresult and how it was calculated.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Operations Research : Applications and AlgorithmsComputer ScienceISBN:9780534380588Author:Wayne L. WinstonPublisher:Brooks ColeA+ Guide to Hardware (Standalone Book) (MindTap C...Computer ScienceISBN:9781305266452Author:Jean AndrewsPublisher:Cengage Learning
Operations Research : Applications and Algorithms
Computer Science
ISBN:9780534380588
Author:Wayne L. Winston
Publisher:Brooks Cole
A+ Guide to Hardware (Standalone Book) (MindTap C...
Computer Science
ISBN:9781305266452
Author:Jean Andrews
Publisher:Cengage Learning