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Recent questions tagged csma-cd

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CSMA/CD
1)Suppose nodes A and B are on 10Mbps Ethernet segment and the propagation delay between the two nodes is 225 bit times. Suppose A and B send frames at the same time, the...
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Test by Bikram | Computer Networks | Test 1 | Question: 30
The bandwidth in a CSMA/CD network is $10$ Mbps. The minimum frame size required in the network when RTT is $384$ microsecond _______ in Bytes.
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Test by Bikram | Computer Networks | Test 1 | Question: 15
A LAN operates Ethernet with CSMA/CD mechanism runs at a transmission rate of 8 Mbps and one way signal propagation time is 25 microsecond, the minimum transmitted frame...
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Ace Gate Practice Booklet VOL-1
Q. When calculating channel efficiency, they have not mentioned propagation delay (i.e. the delay it takes for last bit to cross the link in successful transmission)https...
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Confusion Please answer
AM I CORRECTIs there a difference between channel utilization, sender utilization, Throughput and efficiency ?According to me , Sliding Window ProtocolChannel utilization...
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Formulas for CSMA/CD
Am I Correct ?Throughput and Efiiciency of CSMA/CD$Throughput = \frac{Length of frame}{Transmission TIme+ Contention Period+ Propagation period}$$Efficiency = \frac{Trans...
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Gate Practice Booklet VOL-1
Does cycle time in (channel efficiency or channel utilization or throughput) and Ethernet efficiency differ ?Page >63 Q >1 cycle time = (Transmission period +Contention ...
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CSMA/CD
Two CSMA/CD stations are each trying to transmit long (multiframe) files. After each frame is sent, they contend for the channel, using the binary exponential backoff alg...
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ISRO CSE 2016 | Question: 69
In Ethernet CSMA/CD, the special bit sequence transmitted by media access management to handle collision is calledPreamblePostambleJamNone of these
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Efficiency in ethernet
Consider a 10 Mbps Ethernet LAN that has stations attached to a 2.5 km long coaxial cable.Given that the transmission speed is 2.3*10^8 m/s, the packet size is 128 bytes ...
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GATE CSE 2016 | Set 2 | Question: 53
A network has a data transmission bandwidth of $20 \times 10^{6}$ bits per second. It uses CSMA/CD in the MAC layer. The maximum signal propagation time from one node to ...
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Calculating frame length when bit rate, propagation delay(in bits) and length of link is given.
Assume CSMA/CD protocol. Find the least frame length in bytes for a 2 Mbps bit rate and 1.5km long network where propagation delay is 4.25 nano seconds per metre _______
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Csma cd
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csma/cd
Two csma/cd stations are trying to send frames..After each frame is sent they contend for channel using backoff exponential algorithm?What is probability that contention ...
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Csma cd
Why in csma cd transmission time=2*propogation time
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Frame size (jamming signal)
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14 14 votes
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Cn-ques1 ethernet and csma-cd
Suppose two nodes, A and B, are attached to opposite ends of a 900 m cable, and that they each have one frame of 1000 bits (including all headers and preambles) to send t...
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ISRO CSE 2008 | Question: 6
Which of the following transmission media is not readily suitable to CSMA operation?RadioOptical fibersCoaxial cableTwisted pair
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48 48 votes
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GATE CSE 2015 | Set 3 | Question: 6
Consider a CSMA/CD network that transmits data at a rate of $100\;\textsf{Mbps}\; (10^8\;\text{bits}$ per second) over a $1\;\textsf{km}$ (kilometre) cable with no repeat...
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In P-persistent CSMA network there are 5 systems in a slot. The probability of station not transmitting the data is 0.6. Only two stations should transmit the data to avoid collision. What is the probability that channel is collision free?
In P-persistent CSMA network there are 5 systems in a slot. The probability of station not transmitting the data is 0.6. Only two stations should transmit the data to avo...
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GATE IT 2005 | Question: 71
A network with CSMA/CD protocol in the MAC layer is running at $1 \text{Gbps}$ over a $1 \text{km}$ cable with no repeaters. The signal speed in the cable is $2 \times 1...
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62 62 votes
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GATE IT 2005 | Question: 27
Which of the following statements is TRUE about CSMA/CD:IEEE $802.11$ wireless LAN runs CSMA/CD protocolEthernet is not based on CSMA/CD protocolCSMA/CD is not suitable f...
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GATE IT 2008 | Question: 65
The minimum frame size required for a CSMA/CD based computer network running at $1\text{Gbps}$ on a $200m$ cable with a link speed of $2 \times10^{8}\text{m/sec}$ is:$125...
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