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Networking Questions
Hi,
Here are few questions?
1. What is FTP & UDP?
2. What is the difference between switch & router?
3. As i know that DHCP works under a protocol in the name of "DORA". Can
anyone explain me about "DORA"?
4. Please explain me about the concept of "Kerboros" protocol & when i
works?
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Re: Networking Questions
[QUOTE=mittra_ashish;18946]Hi,
Here are few questions?
1. What is FTP & UDP?
2. What is the difference between switch & router?
3. As i know that DHCP works under a protocol in the name of "DORA". Can
anyone explain me about "DORA"?
4. Please explain me about the concept of "Kerboros" protocol & when i
works?[/QUOTE]
DHCP clients use DORA(Discover,offer,request,and Acknowledgements) to obtain a DHCP ip address lease,to see the acitve DHCP leases, use the DHCP administrative tool,
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Re: Networking Questions
FTP is a file transfer protocol that works on port 21. Most famous FTP software is Cuteftp
UDP stands for User Data gram protocol is one of the two main protocols used in IP Networks, Unreliable protocol , Yu cant detect any error , It works on Transport layer.
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Re: Networking Questions
give me some tips about networking
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Re: Networking Questions
Normally, networking is means connect the difference network into a big one. difference network is refer to the LAN in difference part of the branch of a big company, etc.
switch and router is two difference type device, switch is used for layer 2 switch mainly, but right now, switch can work as a router in layer 3 mode, but the mainly difference is performance. switch's layer 2 works better than router.
router work's in layer 3, and only have limited layer 2 funtions, it's used for routing, and have much high performance in routing than switch.
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Re: Networking Questions
FTP-File transfer protocol is a network protocol used to transfer data from one computer to another through a network, such as over the Internet.
UDP-User Datagram Protocol .Using UDP, programs on networked computers can send short messages sometimes known as datagrams
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Re: Networking Questions
DORA is the process that DHCP goes through to assign IP addresses to computers, printers, etc throughout a network. The letters in DORA stand for DHCPDISCOVER, DHCPOFFER, DHCPREQUEST, and DHCPACK. Kerberos is more in depth to explain, basically to say it in a few words, it's used for authentication for IPSec using secret-key cryptography.
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Re: Networking Questions
Also, with FTP and UDP, FTP is better for downloading stuff like pictures and music, because it traces each packet that is sent and makes sure nothing is missing. UDP, on the other hand, isn't very reliable because it doesn't trace packets, so it's ok to use when you're streaming videos because it's not like you're going to miss a millisecond clip in a video...
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Re: Networking Questions
WHAT is the difference between EIGRP and O.P.S.F.??
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Re: Networking Questions
1-- ftp is file transfer protocol. ftp is a application that works in application
layer of osi model.
one good reason to use ftp is to download files. ftp is much fater than
standard http downloads
2--UDP is nothing but user datagram protocol this protocol works at
transport layer of osi model.
udp is un reliable ,connectionless datagram protocol " unreliable" merely
means that the protocol has no technique for verifying that the data
reached the other end of network correctly
3--swithes are network device .
to improve network performance switches were developed.it keeps the
table mac address per port to make switching decision
4--router is network device to send packets between different network routers are used
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Re: Networking Questions
what is main diffrence between DR and BDR
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Re: Networking Questions
FTP Works with Appication Layer port no 21
UDP Means User Data gram Potocol Port no 17 this is connection less Oriented Protocls , example : Odinary Post it swork with tranport Layer
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Re: Networking Questions
EIGRP this is Hybrid protocols ( Distance Vector protocol and Link State protocol )
1 ) Administrative Distance Internal 90 and External 170
2 )it can be Support VLSM
3 ) Meric ( Bandwith + Dealy + Reliablity+ MTU
4)
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Networking Questions
hi,
i've cts interview..
pls goe me some commonly asked basic interview questions..
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Re: Networking Questions
Kerberos uses as its basis the Needham-Schroeder protocol. It makes use of a trusted third party, termed a key distribution center (KDC), which consists of two logically separate parts: an Authentication Server (AS) and a Ticket Granting Server (TGS). Kerberos works on the basis of "tickets" which serve to prove the identity of users.
The KDC maintains a database of secret keys; each entity on the network — whether a client or a server — shares a secret key known only to itself and to the KDC. Knowledge of this key serves to prove an entity's identity. For communication between two entities, the KDC generates a session key which they can use to secure their interactions
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Re: Networking Questions
[QUOTE=mittra_ashish;18946]Hi,
Here are few questions?
1. What is FTP & UDP?
2. What is the difference between switch & router?
3. As i know that DHCP works under a protocol in the name of "DORA". Can
anyone explain me about "DORA"?
4. Please explain me about the concept of "Kerboros" protocol & when i
works?[/QUOTE]
FTP - File Transfer Protocol.
Used to transfer files from one point to the other.
Port no - 20-Control,21-Data.
Works on layer 3,4,6,7
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Re: Networking Questions
Switch is a layer 2 device , works with mac address , faster than router , broadcasts the packets with in the network.when a switch is connected to a lan say 20 pcs first of all, it broadcasts the packets to all the 20 systems , learns the mac address of the pcs from their response builds up the mac address table.
So when a packet has to sent again to a particular pc say pc1,it wont broadcast to all the systems just it ll unicast ie, send the packet directly to the pc1.More over we can effectively maintain the VLANs , sorting them etc
Router is a layer 3 device capable of broadcasting packets out of a particular network.using a router we can wave a path for packets for a network, get it filtered using access list etc....
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Re: Networking Questions
Dr - designated router bdr - backup designated router while using ospf a election ll be held up based on the ip address of the router, the router having the highest ip address will be elected as the dr of the network which ll handle the entire network operations while the bdr is a backup for dr.
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Re: Networking Questions
ftp stands for file transfer protocol used for transfering the file from one to another
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Re: Networking Questions
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Re: Networking Questions
What do u under stand by radio link?
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Re: Networking Questions
6. What do u meen by Ethernet, Intranet, Internet, LAN, WAN, MAN.
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Re: Networking Questions
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Re: Networking Questions
[FONT="Georgia"]:)[/FONT][QUOTE=rameshbabu_917;22569]DHCP clients use DORA(Discover,offer,request,and Acknowledgements) to obtain a DHCP ip address lease,to see the acitve DHCP leases, use the DHCP administrative tool,[/QUOTE]
Kerberos is an Internet Engineering Task Force (IETF) standard for providing authentication. Kerberos works by having a central server grant a "ticket" honoured by all networked nodes running Kerberos:)
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Re: Networking Questions
Router is one that one network is connected to 4 or 5 or number of systems
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Re: Networking Questions
Router works in which layer in osi model
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Re: Networking Questions
what is ipsec vpn ?
what is ad ?
what is load balance over mpls ?
how do u creat tunnel ?
what is eps and AH ?
explain bet distace vector and link state protocol ?
what is adjancency?
what is LSA ?
diff bet OSPF and EIGRP ?
define the stubby area configuration and nssa ?
what is procedure to break the admin password for cisco and juniper and nortel device ?
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Re: Networking Questions
hi buddy if u want more question and answer. so i will provide do't worry
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Re: Networking Questions
[QUOTE=mittra_ashish;18946]Hi,
Here are few questions?
1. What is FTP & UDP?
2. What is the difference between switch & router?
3. As i know that DHCP works under a protocol in the name of "DORA". Can
anyone explain me about "DORA"?
4. Please explain me about the concept of "Kerboros" protocol & when i
works?[/QUOTE]
ans- FTP - is a Internet protocol whose long form is File Transfer Protocol which is used to transfer any files having any extension over net
UDP-is User Datagram Protocol.
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Re: Networking Questions
tell me ten diffrence between Hub & Switch
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Re: Networking Questions
[QUOTE=mittra_ashish;18946]Hi,
Here are few questions?
1. What is FTP & UDP?
2. What is the difference between switch & router?
3. As i know that DHCP works under a protocol in the name of "DORA". Can
anyone explain me about "DORA"?
4. Please explain me about the concept of "Kerboros" protocol & when i
works?[/QUOTE]
1) ftp: file transfer protocol, that allows users to copy files between their local system and any system they can reach on the network.
udp: user datagram protocol.
2) switch it is an data link device, it works with physical adress. it has 1 broadcast domain & number of collision domains.
router is a network layer device, it works with logical adress & fixed band width. it connects two or more different domains.
3) DORA is a process to give a ip automatically to client
D-discover, the client system discover the server in the domain
O-offer, server offer an pool of ip adressess
R-request, from the pool of adress client select one of the request
A-acknowledgement, selected request of client was confirmed by the server by sending acknowledgment.
4) ?
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Re: Networking Questions
"2.router deside the path and send the message to the destination.
switch
can send the message only the given path .
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Re: Networking Questions
Explain about MODEM commands?
how to connect router and bridge?
what is difference between socket &port?
how the port is applied in c language,java,or vb?
using c lanuage how will you connect socket using c,vb,java.
how will you implement datagram protocol and tcp in c lanuage ,vb,or java?
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Re: Networking Questions
hi,
what is the peer to peer?
what is the y2k problem? my knowledge in cable problem but clarification?
with regards,
Deena.A
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Re: Networking Questions
dear friend,
FTP . file transfer protocols, which is used to send a bulk data. not only send u can receive also. if u want get the data from u r ftp server(placed in u r org.,) u should know the ip address of the ftp server. so that u can contact u r ftp server from anywhere else. the ftp it uses port number 20 and 21 in the application layer, it uses tcp protocol in the transport layer.
UDP : user datagram protocol, it is a connectionless protocols in the transport layer of the OSI model. it is very fast, so that u can send voice, video.
DORA: [B]D[/B]iscover, [B]O[/B]ffer, Request,[B]A[/B]cknowledgement
when the client need a ip address from the dhcp server. at first the client , it has to find out who is the dhcp server in our network isn't it for that it send discover pkt., (That means where is the dhcp server located).
Once the client Discover the server, than the server it will give the Request to that particular client , as (with the help of mac address of that particular client) i will offer this particular ip ( it is giving offer only so the client weather may it will accept or not).
once the client accept that praticular which it has received from the server , than the client it will give the request as ok server sir i will use that particular ip.
for that particular rqst the server it will give tha Acknowledgement ok client sir u got the ip from me. that's all
the dhcp it uses two port number one is udp-67 for server, another one is udp-68 for the client
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Re: Networking Questions
[QUOTE=mittra_ashish;18946]Hi,
Here are few questions?
1. What is FTP & UDP?
2. What is the difference between switch & router?
3. As i know that DHCP works under a protocol in the name of "DORA". Can
anyone explain me about "DORA"?
4. Please explain me about the concept of "Kerboros" protocol & when i
works?[/QUOTE]
ans2: switch broadcast the signal. and router route the data packet in certain location.
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Re: Networking Questions
ftp is file transfer protocol to upload files form ftp server and udp is user datagram protocol
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Re: Networking Questions
[QUOTE=mittra_ashish;18946]Hi,
Here are few questions?
1. What is FTP & UDP?
2. What is the difference between switch & router?
3. As i know that DHCP works under a protocol in the name of "DORA". Can
anyone explain me about "DORA"?
4. Please explain me about the concept of "Kerboros" protocol & when i
works?[/QUOTE]
tcp is transmission cantrol rotocol
udp is user datagram protocol
switch is used to connect a local area network i.e.network of a singal office.
router is used to connect two diffrent network i.e offices of diff citys
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Re: Networking Questions
Hey... friends please answer this....
What is the differnce between A "Switch" and a "Hub"...
both can be used in LAN i think...
Is there any speed issue is concerning with these two when we talk about Data transfer....?
Please explain....
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Re: Networking Questions
Hey... friends please answer this....
What is the differnce between A "Switch" and a "Hub"...
both can be used in LAN i think...
Is there any speed issue is concerning with these two when we talk about Data transfer....?
Please explain....