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What is the difference between collision domain and broadcast domain?
radhesham
- Jun 21st, 2011
Collision is intersection of two or more data at a particular point which results in Loss of data.
Broadcasting is sending data or information to every node, ports in a network
kapil
- Feb 16th, 2007
Broadcast domain is the logical address scheme in which a user can acess any other networking address without any routing devicebut in collision domain that is the combination of the single segment and multiple segments through repeter
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Layer2 software design
Hi Board members, I have good knowledge with unix internals and programming. But suddenly I wanted to become a datacom developer.. lol. I have read a good amount about networking and various layer 2 protocols and some routing protocols. However, I could not find any material discussing about the layer2 software design itself. Though I learnt protocols I am not able to face Layer 2 interviews from a...
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What is the subnet mask of class a,b,c,d,e.and what is the minimum and maximum number of connections in class a,b,c,d,e
netsolver
- Jul 5th, 2008
N - networkH - HostClass A - 0nnnnnnn hhhhhhhh hhhhhhhh hhhhhhhh 126 Class As exist (0 and 127 are reserved) 16,777,214 hosts on each Class A Class B - 10nnnnnn nnnnnnnn hhhhhhhh hhhhhhhh First two bi...
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What is difference between layer 2 and layer 3 switch ?how much bandwidth support by V.35 and RS 232 cable What is difference between V.35 and RS 232 Cable
xuyuan
- Aug 4th, 2008
Layer 2 switch forward or filter frames, layer 3 switch (router)?use logical addressing and provide packet switching. Router also provide packet filtering by using acess list and when connect two or ...
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Configure two DHCP Servers
How to configure two DHCP Servers using 2 swithces with 1 DSL. Keep in mind we cannot use any other additional equipment.
naveenbhatiya2007
- Jan 27th, 2011
You configure what is known as Network Address Translation (NAT) on the router. This then translates the IP address of the server, which is likely to be a 10.x.x.x or 192.168.x.x address, to be the IP...
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how do you use VPN to connect branch office to the other office ?
bangers
- Dec 21st, 2010
There is no one answer for this very broad question. You can use Microsoft IAS, Cisco, Juniper, etc. Basically you need to use a routing protocol of some sort to connect the two offices. This would ty...
ah.alqahtani
- May 24th, 2010
You have to download "Cisco Systems VPN Client" program, and also to get the .pcf file, which must contains the host IP and your username.... I hope that I gave you the key for your answer.
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VPN Network Protocols
Benefits of VPN ? Difference between L2TP and PPTP Protocols
vishnurajr
- Dec 15th, 2010
A Virtual Private network (VPN) allows the creation of private networks
across the internet, enabling privacy and tunneling of non-TCP/IP protocols.
Three different categories of VPNs:
They are Remote access VPNs, Site -to-site VPNs, Extranet VPNs.
VISHNU RAJ.R
prasanna168
- Dec 13th, 2007
A Virtual Private Network ( VPN) delivers private network services over a public infrastructure. An IP VPN is a partitioned private network constructed over a shared IP-based backbone that utili...
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How Gateway is different from Routers?
A gateway operates at the upper levels of the OSI model and translates information between two completely different network architectures or data formats.
Piyush Verma
- Nov 3rd, 2010
Router is only used to transfer a packet from one network to another but if protocols of both side networks are diffrent then Getway is used to translating protocols.Ex: WAN to LAN
nandanmehta
- Jan 4th, 2010
Gateway is nothing but the final point that the data crosses finally in a network,it is mostly used for user authentication which router cannot provide.Gateways can provide authentication to ano...
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Connect and Configure
There are four routhers and 4 swiches and 40 computers in an office. How will you connect each devices and configure those devices?
haisudha123
- Oct 13th, 2010
This is using different network build purpose, so connect first router to first switch and connect 10 nodes with first switch, this is one network ex:192.168.1.0 networkand connect second router...
nawin_54
- May 12th, 2010
Ahmed, based on requirement we connect the networks, you didn't mention the series of switches and routers.
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Which protocol is used for retrieving mails?
artesantosh
- Oct 11th, 2008
POP protocol (port number 110) used for retriving mail in micosoft outlook.
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Read a Switch
You are given only the IP address of the switch but not the port number. How will you read that switch?
sonet
- Aug 4th, 2010
If the switch has an Ip address, you telnet to the switch and provided that there is no password set either at virtual terminals or to enter the privileged mode, you can enter privileged mode and write sh run and read the running config.
sonet
- Aug 4th, 2010
A switch can have an Ip address for telnetting purpose.So, if you telnet to the switch, and if you have no password on Telnet you can access the switch (provided that there is no privileged mode password set) and then 'Show Run' , you can read the running configuration.
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Missing NTLDR File
Windows crashed because NTLDR File is missing. How will you restore this file (Without using Safe Mode Option)?
kamalakar2000
- Jul 23rd, 2010
Step 1Locate your windows xp/2000 install disk and place it in your CD/DVD ROM drive. If you do not have this disk then you cannot proceed any further.Step 2Restart your computer or turn it off then b...
kumadine
- Dec 18th, 2009
Insert CD in CD-Drive then boot system from CDCopy ntldr file from CD and paste this file to C: drive corresponding folder and then restart this system
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Network Negotiation
What does negotiation mean when discussing network protocols?
vijaykwt
- Apr 20th, 2010
The Difference Between Half and Full Duplex."Duplex" simply means you're able to send and receive data (most often the human voice) from the same device whether that be with your phone, 2-wa...
zeeshanexpert
- Mar 30th, 2010
Negotiation has to do with getting both sides to agree on some parameters or values to be used during the communication. Maximum packet size is one example, but there are many others.
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Token Ring Segment
You need to connect a Token Ring segment to an Ethernet segment. Would you use a router, a brouter , or a bridge ?
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Communicating
When two network layers are in communication with one another, these layers are known as?a.)PDUsb.)peer entiiesc.)PRAMsd.)sockets
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What is the process of OSI Model, when two computer communicate with each other?
akaliappa
- Feb 1st, 2010
OSI model could be big. I will explain it in TCP/IP model, which is used in modern computersThe TCP/IP model has the following Layers.ApplicationTransportNetworkData LinkPhysicalApplication:When 2 PCs...
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What is the subnet mask of this network
if interface address is 130.237.14.25/23- what is the subnet mask of this network- how many usable IP address in this network- what is the Subnet ID(IP) of this network- what is broadcast IP of this network
saeedkhan
- Nov 20th, 2009
The Default subnet mask for this Ip address is 255.255.254.254 as this is class B IP address. But the the subnet mask is 255.255.254.128/23.Since, ...
dilipmohapatra
- Oct 4th, 2007
Subnet Mask: 255.255.254.0No. of IP addresses assigned in that subnet: 2^9 -2=510Subnet ID: 130.237.14.0/23Broadcast ID: 130.237.15.255
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WAP Gateway
What is the function of a WAP gateway ? Discuss WAP protocols.
goutham431
- Nov 13th, 2009
Implementation of the WAP stack Converting protocols Converting markup languages Compiling WMLScript programs Encoding WML into a binary bitstream Providing access control Caching Domain name resolution services (DNS) Security features
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Data Transmission From Server to Server
State the technical steps required for data transmission from server to server via a router and switch
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VLAN and INTERVLAN
What is VLAN and INTERVLAN? Why do we use these techniques?What are the differences between STP, RSTP and MSTP?
mllhzaheer
- Jul 9th, 2009
VLAN are used to segment your network eliminate broadcast it is also used for security purpose.VLAN of sales department cannot access VLAN of finance department.InterVLANs are used to create VLAN to VLANs.
gurbirks
- Nov 28th, 2008
VLAN(Virtual Local Area Network) is a logical grouping of network users and resources connected to administratively defined ports on a switch. VLAN's break up broadcast domains in layer 2 switch n...
Computer Networks Interview Questions
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