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 CCNA interview questions  CCNA Interview Questions
 CCDA interview questions  CCDA Interview Questions
Question
what is the difference between a passive and active hub?? 
which is better ??
 Question Submitted By :: Abouleila
I also faced this Question!!     Rank Answer Posted By  
 
  Re: what is the difference between a passive and active hub?? which is better ??
Answer
# 1
Passive hub will not regenerate the signal but active hub 
will regenerate the signal ....... so active hub is better.
 
Is This Answer Correct ?    28 Yes 2 No
Sachin
 
  Re: what is the difference between a passive and active hub?? which is better ??
Answer
# 2
active hub need electricity bt passive hub didnt 
active hub copy and regnerate signals but passive only copy 
signals
 
Is This Answer Correct ?    9 Yes 1 No
Amit
 
 
 
  Re: what is the difference between a passive and active hub?? which is better ??
Answer
# 3
Passive Hubs
These hubs are nothing more than point contacts for the 
wires that make up the physical network. An example of this 
would be a punchdown block that is a simple plastic, 
unpowered box used to plug network cables into it. 

Active Hubs
Active hubs are a little smarter than the passive hubs we 
saw. All You might also come across the 
term "concentrators" which are basically active hubs, 
concentrating and strengthening a signal as it enters and 
exits the hub. 

It's also worth noting that today's active hubs are 
advertised as "hubs" or "repeaters". It is very rare you 
will see a hub with the word "active" on it! 

These hubs usually come in configurations of 4, 8, 16 and 
24 ports, providing link & activity leds (lights) to show 
which devices are currently connected, powered on and 
transmitting or receiving data. 

Lastly, you might be interested knowing that all Ethernet 
hubs are active hubs. 

jitendera kumar sinha
 
Is This Answer Correct ?    2 Yes 2 No
Jitendera Kuamr Sinha
 
  Re: what is the difference between a passive and active hub?? which is better ??
Answer
# 4
Passive Hubs
These hubs are nothing more than point contacts for the 
wires that make up the physical network. An example of this 
would be a punchdown block that is a simple plastic, 
unpowered box used to plug network cables into it. 
Active Hubs
Active hubs are a little smarter than the passive hubs we 
saw. All You might also come across the 
term "concentrators" which are basically active hubs, 
concentrating and strengthening a signal as it enters and 
exits the hub. 
It's also worth noting that today's active hubs are 
advertised as "hubs" or "repeaters". It is very rare you 
will see a hub with the word "active" on it! 
These hubs usually come in configurations of 4, 8, 16 and 
24 ports, providing link & activity leds (lights) to show 
which devices are currently connected, powered on and 
transmitting or receiving data. 
Lastly, you might be interested knowing that all Ethernet 
hubs are active hubs.
 
Is This Answer Correct ?    1 Yes 0 No
Ravinder Gujjar
 
  Re: what is the difference between a passive and active hub?? which is better ??
Answer
# 5
active hub is more smarter than passive hub
 
Is This Answer Correct ?    1 Yes 0 No
Priyanka
 

 
 
 
Other CCNA Interview Questions
 
  Question Asked @ Answers
 
Put the following steps of encapsulation into the correct order: 1) The data is broken into segments to be organized 2) Frames are converted to 1s and 0s to be put on the wire 3) Packets are converted into frames 4) Information that users enter is converted into data 5) The segments are changed to packets to be routed A.) 4, 1, 3, 2, 5 B.) 4, 5, 1, 3, 2 C.) 2, 3, 1, 4, 5 D.) 4, 1, 5, 3, 2  2
Which command-line keywords are valid for choosing Frame-Relay LMI types? A.) itu-t B.) dlci C.) ansi D.) rfc 1544 E.) cisco F.) q933a  1
What type of switching creates variable latency through the switch? A.) Cut-Through B.) Inverted C.) Layer 4 D.) Multiplexed E.) Store and Forward  1
take a pen and copy before solving that question there is a router name Ra there is two switch sw1 and sw2 sw1 is coneceted through fa0/1 interface of router Ra sw2 is conected through the fa1/1 serai interface of router s0/1 conected through the isp with it ip address 192.168.1.1 now therer are three host conexted through the sw1 and having ip host1=10.1.2.1 host2=10.1.2.2 host3=10.1.2.3 now there is also 3ree host conected through switch 2 i.e sw2 having ip host4=10.1.1.1 host 5=10.1.1.2 host 6=10.1.1.3 now i think u have made corect confrigation.now questios is started network admin configure the Ra router in that fassion Ra(config)#access-list 2 permit 10.1.1.0 0.0.0.255 Ra(config)#line vty 0 4 ra(config)#access-class 2 in now question is that why should network admnistratoe do it in this maneer A to give access sw1 host to acess internet B to prevent sw1 host from acessing comand promt c to prevent sw2 host from accessing console of router ra D to give sw2 host access to the enternet e prevent sw1 host from accessing internet f to prevent sw1 host from acessing the sw2 host network isp------(s0/1)..RA..(fa1/1)---SW2-host (4,5,6) | | (sw1)------host 1,2,3 this is not exect digarm but help to derive the diagram plz answer as soon as possible AT&T6
Which of the following is true? A. The default is to send debug output to the console screen. B. To view debug output from a telnet session, the "terminal monitor" command must be used C. If the "logging buffered" command is used, the debug output would be sent to RAM and can be viewed with the "show log" command D. If the "no console loggin" command were configured, output would besent to a telnet session E. All of the above F. None of the above G. A, B, and C. H. A, C, D, and E.  2
Which statement about switched and routed data flows is correct? A. Switches create a single collision domain and a single broadcast domain. Routers provide separate collision domains B. Switches create separate collision domains but a single broadcast domain. Routers provide a separate broadcast domain C. Switches create a single collision domain and separate broadcast domains. Routers provide a separate broadcast domain as well D. Switches create separate collision domains and separate broadcast domains. Routers provide separate collision domains  1
Identify the command to display the status of the Frame Relay virtual circuit? A.) Router# show frame-relay virtual-circuit B.) Router(config)# show frame-relay pvc C.) Router# show frame-relay pvc D.) Router# show virtual  1
what is native vlan any one explain sooraj  2
What command do you use to disable domain lookup? A.) no domain-lookup B.) domain no-lookup C.) lookup no-domain D.) no ip domain-lookup  1
Which layer defines the physical topology? A.) Application B.) Transport C.) Network D.) Data Link E.) Physical F.) Session  1
In order to configure a Frame Relay subinterface with IP identify the 2 commands that must be configured on the physical interface? A.) Router(config-if)# encapsulation frame-relay B.) Router(config-if)# no ip address C.) Router(config-if)#encapsulation subinterface frame-relay D.) Router(config)# subinterface s0 encapsulation frame-relay  1
Identify the purpose of the wildcard mask? A.) Match a certain portion of the IP address while ignoring the rest of the address B.) Determine the class of the IP address C.) Determine the network portion of an IP address D.) Hide the host portion of an IP address  1
What is the routing metric used by IGRP? A.) MTU, delay, bandwidth, reliability, and loading B.) Count to infinity C.) TTL D.) Hop count  1
Which ISDN specification series deals with Concepts and Terminology? A.) World Series B.) I- Series C.) Q-Series D.) 911-Series E.) J-Series F.) F-Series  1
Identify 2 features of PPP PAP authentication? A.) Username and password is sent in clear text B.) Authentication messages are sent periodically during the connection C.) More secure than CHAP D.) Remote node is control of authentication process  1
Identify command that configures 'Cisco1' as a secret password? A.) Router(config)# enable secret password Cisco1 B.) Router(config)# enable secret cisco1 C.) Router(config)# enable password Cisco1 D.) Router(config)# enable secret Cisco1  2
How many total hosts are possible with a Class C address and a subnet mask of 255.255.255.252? A. 4 B. 30 C. 60 D. 62 E. 112 F. 124  6
What does the User Datagram Protocol (UDP) provide? A.) Connectionless datagram service. B.) FECN & BECN C.) Flow control and error checking. D.) Name resolution. E.) Path discovery.  1
Which is true regarding half duplex Ethernet operation? A.) Half Duplex ethernet technology provides a transmit circuit connection wired directly to the receiver circuit at the other end B.) Half duplex transmission between stations is achieved by using point to multipoint Ethernet and Fast Ethernet C.) With Half Duplex transmission logically circuits feed into a single cable creating a situation similar to a one way bridge D.) Half Duplex transmission between stations is achieved using Point to Point Ethernet & Fast Ethernet  1
what is frame relay.and how it is different from isdn HCL1
 
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