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Dhcp and dns

Asked By: shruthidas | Asked On: Feb 14th, 2008

What is the difference between dhcp and dns

Answered by: Ravi on: May 28th, 2013

DHCP: is a dynamic host configuration protocol it is used for dynamically and automatically assign the IP address to the client the Port no: 67/68

DNS: Domain naming system it is used for name regulation that is conversion of host name to IP address port no : 53

Answered by: bhagare on: Nov 20th, 2012

DHCP Means,Dynamic Host Configuration Protocol,Which Work on DORA Process,Mean ,DISCOVER,OFFER,REQUEST,ASSIGN.
DHCP,is protocol,Which is used to assign a IP address to computer automatically Means Dynamically.We no need to assign IP Address statically to the computer.

In network error handling, the way to include only enough redundancy to allow the receiver to deduce that an error occurred, but not which error, and have it request a retransmission, uses the startegy...

Asked By: Interview Candidate | Asked On: Nov 28th, 2005

Skill/topic: networking basicsa) error-correcting codesb) error deducting codesc) error free networkingd) none of the above

Answered by: maya on: Mar 26th, 2013

error correcting codes

Ethical hacking

Asked By: Deepak1980 | Asked On: Jul 20th, 2008

Hi friends,i want to have a certification in ethical hacking can some please let me know what all the pre requesite to become a certified ethical hacker q1) do one need to know any programming language alongwith it any networking??Q2) which are the best institute in mumbai who provide this certification...

Answered by: bhagare on: Feb 28th, 2013

Ethical Hacking means,inspect that the How much your network is secure,how we provide you a better security to our network or show you how much your network is SECURE.

Answered by: Biikash on: Oct 14th, 2011

1 programming language(ex. Java bcoz its core language) secondly networking knowledge,data base knowledge,n also server related...

If the desktop is restarting again and again, what could be the reason and what will be the solution?

Asked By: happy9702 | Asked On: Jan 14th, 2013

Answered by: bhagare on: Feb 28th, 2013

It might be Overheating desktop,may be too many dust,might be any external attached media,may be virus problem,may be os corrupt,it might be some application Software might be goes to problem. Soluti...

Answered by: giriver singh bisht on: Feb 27th, 2013

There may be any batch file of restart in your startup file.

Why do we use subneting in a network?

Asked By: Nisar bhat | Asked On: Feb 28th, 2011

Answered by: nathsambu on: Jan 18th, 2013

Subneting is a process of creating a multiple network by using a single network.
Subneting is use to save the ip address
Example:
Suppose i hva small office , which i need 10 Public ip.
For 10 ip, the entire network is wastage

Answered by: samir on: Feb 21st, 2012

-in case of broadcast , the subneting is very useful , instant of broadcasting to the whole number of pcs , you can just broadcast to a small group of subnet. -in case of configuration, if you want to...

How to enable usb

Asked By: RVR Ramana | Asked On: May 2nd, 2012

Can anyone help me out to enable usb on my machine. I tried all the options not working. Its blocked by symantec/centra in my network.

Answered by: nathsambu on: Jan 18th, 2013

Got to Run den type "Regedit" .....Follow the instructions....

HKEY_LOCAL_MACHINE

SYSTEM

CURRENT CONTROL SET

SERVICE

USBSOTR

Expand the USBSTOR...den click on "start"

change the value 4 to 3
(4 for Disable & 3 for Enable)

Answered by: mifthahudeen on: Jun 1st, 2012

if your machine is under the domain or in corporate network,,,the system admin or engineer are the one who can give access to your machine to use "usb"..the "usb" may be blocked for some security purposes of the corporate companies.

Ip vpn and internet vpn

Asked By: shanishp | Asked On: Nov 13th, 2010

What is the difference between ip vpn and internet vpn ? Does both comes with static ip adress?

Answered by: Lokesh M on: Jan 7th, 2013

Both IP VPN as Internet VPN are generalised terms. These are not proper usage terms. Inetnet based VPNs IPsec Layer-3 network level protocol open standard technology SSL/TLS PPTP These VPNs are acce...

Vlan trunking

Asked By: icarunprasad | Asked On: Nov 29th, 2010

What is vlan trunking? How does it work?

Answered by: Lokesh M on: Jan 7th, 2013

VLAN trunking enables single network adapter to act as "n" number of virtual network adapters, "n" has a theoretical upper limit of 4096 VLAN network segments. However it is limited to 1000 VLAN n...

Outline the cross and straight cable color codes.

Asked By: rahull05 | Asked On: Mar 13th, 2011

Answered by: nathsambu on: Dec 21st, 2012

Straight Cable: Both side are same

Orange White
Orange
Green White
Blue
Blue White
Green
Brown White
Brown


Cross-over Cable: First side is same as straight cable

Second side

Green White
Green
Orange White
Blue
Blue White
Orange
Brown White
Brown

Answered by: sm_feroz on: Dec 4th, 2012

Cross cabling is used for connection between 2 similar devices such as Router to Router or peer system and the Colour sequence is G (Green) G (White of Green) O (Orange) B (Brown) B (White Of Brown) O...

Lan system access

Asked By: Deepak9717540 | Asked On: May 18th, 2009

How can you access a system in lan when it is not a part of domain?

Answered by: nathsambu on: Dec 21st, 2012

If the system is not in a part of domain, we can access through ip address. Give same ip range in both system and try to ping it. after reply from another system we can transfer data and informations

Answered by: sm_feroz on: Dec 4th, 2012

One cannot access a system which is not in Lan or not in domain. Either one should add system to domain or use cross cabling if the system in out of lan or not in domain to directly access that system.

Nic stands for network internet card

Asked By: Interview Candidate | Asked On: Nov 28th, 2005

Skill/topic: networking basicsa) trueb) falseexplanation: nic means network interface card

Answered by: nathsambu on: Dec 21st, 2012

A) True Nerwork Interface Card

Answered by: bhagare on: Nov 21st, 2012

Network Interface Card

Border gateway protocol

Asked By: ranjithkumaar | Asked On: Jul 11th, 2009

What is the use of border gateway protocol? What is the administrative value of bgp?

Answered by: sm_feroz on: Dec 4th, 2012

BGP stands for Border Gateway Protocol, BGP is used to communicate to a particular peer on network without disturbing the whole network in an organization.

Cisco switch configuration

Asked By: sujanask | Asked On: Feb 11th, 2010

How do you configure a cisco switch or router?

Answered by: sm_feroz on: Dec 4th, 2012

One can configure Cisco Switch and Router through Console Port.

What is a difference between routing and routed protocols?

Asked By: hem kumar | Asked On: Feb 14th, 2006

Answered by: bhagare on: Nov 21st, 2012

Routing Protocol learn route for routed protocol and routed protocol carries user traffic such as Email file transfer.

Answered by: harish on: Oct 6th, 2011

Routing protocol is used by routers to dynamically find all the networks in the internetwork & to ensure that all routers have the same routing.

Routed protocol is used to send user data through the established network.

How do you troubleshoot when leased lines are down

Asked By: Nayan Sharma | Asked On: Oct 15th, 2007

Answered by: bhagare on: Nov 21st, 2012

Check via ping utility,check modem,or any mux device provided by service provider, which power is on/off,also checking via login by username & password into the router by connecting through hyper terminal,or directly login over network.

Answered by: saurabh on: Nov 30th, 2011

1. First of all you can check the modem indication if in modem data light is not glowing it means link is down. 2. if you have a router login access you can also check the interface status where the ...

Wildcard mask

Asked By: sujanask | Asked On: Feb 11th, 2010

What is a wildcard mask, and how is it different from a netmask?

Answered by: Santhosh on: Nov 20th, 2012

wildcard mask is contrast to the subnet mask .
for ex . take an class c ip add . 192.168.10.1/24 for this subnet mask will be 255.255.255.0 !
wildcard mask is just opposite to subnet mask ,
wildcard mask for this ip address is 0.0.0.255.

Answered by: sonet on: Aug 4th, 2010

When you want to match certain bits of the IP address and ignore some bits, then you mask the IP address with 0 in bits you want to match and 1 where you want to ignore. The resulting mask is the wild...

_______ loop solutions in networking congesion attempt to solve the problem by good design

Asked By: Interview Candidate | Asked On: Nov 28th, 2005

Skill/topic: networking basicsa) open b) closed c) none of the above

Answered by: shaukat on: Sep 14th, 2012

ans is a).
open look - good design

Answered by: ankitsays9 on: Jan 13th, 2006

B. Closed Loop

Router get damaged

Asked By: dravikumar | Asked On: Jun 5th, 2012

When our router get damage from branch end then how to take back up from our end?

What is ras server?

Asked By: jibrankhn | Asked On: Mar 23rd, 2008

What is ras server, how we configure in winnt?

Answered by: Durgesh Pandey on: Jan 4th, 2012

RAS is stand for Remote Access Server.
It provide authentication to access our server by a remote location to any user.

Answered by: pllaxman on: Apr 11th, 2008

Remote Access Server is the ful form of RAS!

Its possible to configure in WIN NT only with the third party RAS utility!

Not inbuided into WIN NT Server OS!

Leased line

Asked By: saurabhsv | Asked On: Mar 25th, 2008

What is definition of e1, e3, t1, t3, bri pri how thay work and what is difference ?

Answered by: saurabh on: Dec 1st, 2011

E-1 Similar to the North American T-1, E-1 is the European format for digital transmission. E-1 carries signals at 2.048 Mbps (32 channels at 64 Kbps), versus the T-1, which carries signals at 1.544 M...

Answered by: nshahane on: Jan 8th, 2009

A 2.048 Mbps point-to-point dedicated, digital circuit provided by the telephone companies in Europe. E1 is the European counterpart of the North American T1 line, which transmits at 1.544 Mbps, and E...

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