Networking - Networking Basics - Discussion

Discussion :: Networking Basics - Networking Basics (Q.No.5)

5. 

You have 10 users plugged into a hub running 10Mbps half-duplex. There is a server connected to the switch running 10Mbps half-duplex as well. How much bandwidth does each host have to the server?

[A]. 100 kbps
[B]. 1 Mbps
[C]. 2 Mbps
[D]. 10 Mbps

Answer: Option D

Explanation:

Each device has 10 Mbps to the server.

Mahesh said: (Jan 16, 2012)  
According to the question 10 users are connected to the hub. The bandwidth is divided in to equal to the all hosts he he will give 10 Mbps it will divided in to equal to all hosts. I want explanation for this please give me.

Deepak said: (Jan 18, 2012)  
In the above question hub is the state of half duplex at a time one user can only send the data or receive the data. So user gets 10mbps bandwidth.

Binit said: (Sep 9, 2012)  
Switch manages the bandwidth to 10mbps to each node. But hub divides it in 10 users by 1 mbps.

So how come 10mbps is the speed.

If halfduplex affect the speed then it may be 1 mbps !

Prakash said: (Oct 9, 2012)  
Hubs always provide the entire speed what it is having to entire system that's 10mbps and since half duplex only it use the bandwidth for either sending or receiving both in switch and in hub and collision problem will occur in hub but this can be solved by switch so 10mbps bandwidth is provided for each system. But chance for collision is little high as of known to me.

Sanjeev said: (Oct 10, 2012)  
Switch manages the bandwidth to 10mbps to each node. But hub divides it in 10 users by 1 mbps.

So when switch is connected to server so bandwidth from each host to the server is 10 mbps, its like hub provide 1mbps to PC but switch provide 10 mbps to server.

Chitta Mahapatra said: (Jan 18, 2013)  
Switch actually recreates the signal with same 10 Mbps speed as half duplex but chances of collision is high. But use of hub still ambiguous.

Sajan said: (Jul 5, 2013)  
Revise the concept of half duplex and full duplex in networking. It will be easier to understand this logic then.

Ram said: (Nov 13, 2013)  
In a half duplex (HDX) transmission, a data packet is sent by one system and received by the other. Another data packet cannot be sent until the receiving system sends an acknowledgement back to the sender.

In a full duplex (FDX) transmission, both the sending and receiving systems communicate with each other simultaneously; in other words, both modems can send and receive data at the same time. This means a modem can be receiving a data packet while acknowledging the receipt of another.

Yoyo said: (Dec 8, 2013)  
Half duplex is called half because it's is half so we can call it half.

So from above statement it's clear that each user have 10 mbps.

Anu said: (Dec 22, 2013)  
I want the explanation please give me.

Dinesh Kuamr Meena said: (Jan 8, 2014)  
I believe it is 10mb.

However, with half duplex, it is shared access CSMA/CD. Since only one person can successfully transmit at one time, it is still 10 mb.

If it was full duplex, the throughput would be 20mb with multiple collision domains.

Dominic Emmanuel said: (Jun 22, 2014)  
It's 10mb more study on half duplex will help you understand.

Pankaj said: (Jun 24, 2014)  
I think, Hub can broadcast which means to all but one time one user will only use full bandwidth.

Kowshik said: (Jun 30, 2014)  
Can anyone please explain clearly how much speed hub and switch take ?

Alif said: (Sep 3, 2014)  
Hub and switch are designed in such a way that there should not be any change in the frequency, if frequency remain same so as the bandwidth remain same, the only chances are for data collision.

Ramesh said: (Sep 5, 2014)  
If it is full duplex?

Jackson said: (Mar 8, 2015)  
How is it 10 mbps?

Rahul said: (Apr 26, 2015)  
Can some one give clarify it.

Nitin Sharma said: (May 9, 2015)  
No, since last mile is Hub, that is on layer 1 device and doesn't break broadcast domain as well collision domain, so it will share the available bandwidth into no of connected users. Answer B is valid.

Akshay said: (Jul 25, 2015)  
A 10/100Mbps hub must share its bandwidth with each and every one of its ports. So when only one PC is broadcasting, it will have access to the maximum available bandwidth. If, however, multiple PCs are broadcasting, then that bandwidth will need to be divided among all of those systems, which will degrade performance.

A switch, however, keeps a record of the MAC addresses of all the devices connected to it. With this information, a switch can identify which system is sitting on which port. So when a frame is received, it knows exactly which port to send it to, without significantly increasing network response times.

And, unlike a hub, a 10/100Mbps switch will allocate a full 10/100Mbps to each of its ports. So regardless of the number of PCs transmitting, users will always have access to the maximum amount of bandwidth. It's for these reasons a switch is considered to be a much better choice then a hub.

Sai Deepika said: (Aug 2, 2015)  
In case if it is full duplex, even then will we have 10 mbps, as a switch tries to provide full bandwidth to each user?

J Sudhir said: (Aug 10, 2015)  
This according to the Switch manages the bandwidth to 10mbps to each user. Its like hub provide 1mbps to PC but switch provide 10 mbps to server.

Tesfaye said: (Sep 8, 2016)  
What is the answer if it is full duplex?

Parameswar said: (Sep 25, 2016)  
However, with half-duplex, it is shared access CSMA/CD. Since only one person can successfully transmit at one time, it is still 10 MB.

Kazi Mahebub Alam said: (Nov 27, 2016)  
I did not get things clearly. Can you please explain me?

Salman Khan Qureshi said: (Jan 9, 2017)  
@All.

Refer Deepak's answer. You will understand clearly.

Surojit Sarkar said: (Feb 21, 2017)  
It is shared access CSMA/CD. Since only one person can successfully transmit at one time, it is still 10 mb.

Dinesh Aryal said: (Sep 2, 2017)  
Switch provides the bandwidth of 10mbps to each node however hub divides it to 10 users by 1 mbps.

So when switch is connected to server, bandwidth from each host to the server will be 10 mbps i.e. Hub provide 1mbps to PC but switch provide 10 mbps to server.

Siva said: (Jul 6, 2018)  
How to solve this? Please tell me.

Suraj Kumawat said: (Oct 12, 2018)  
What is the difference between half duplex and full duplex?

Sms said: (Apr 26, 2019)  
You have 10 users plugged into a hub running 10Mbps full-duplex.

There is a server connected to the switch running 10Mbps half-duplex as well. How much bandwidth does each host have to the server?

Pravin said: (Aug 30, 2019)  
Hub sends traffic for all node so bandwidth is divided 10 mbps to 1 mbps each node.

And switch creates MAC Table so send traffic to one node to check specific node MAC address and then after sending traffic so 10 mbps speed to access node also 10 mbps.

Gowthami said: (Sep 20, 2020)  
What is mean by half - duplex? Explain it. And what is the difference between full - duplex and half - duplex?

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