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What is ipv6 ? how many octects is it ?
Thomas Whitten
- Jun 27th, 2011
IPv6 is basically the response to the fact that the world is/was running out of public ip addresses.? The best example of stupidity leading to the problem is universities handing out public IP addres...
addagalla
- Aug 5th, 2008
Ipv6 means Internet Protocol Version 6. It is the latest version. It has 16 octates.It is in Hexadecimal format.
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What is Kerberos?
It is an authentication service developed at the Massachusetts Institute of Technology. Kerberos uses encryption to prevent intruders from discovering passwords and gaining unauthorized access to files.
krisgroup
- Oct 22nd, 2007
hey folks,Kerberos is an authentication service, it has really robust architecture built in it.The basic components in kerberos include the Keydistribution service from which the client communicates t...
Jai Singh
- Dec 18th, 2006
Kerberos is Security Protocal that Authenticate,whether this user is valid or not.if user is not valid it reject otherwise it allow to access service.
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What is a VLAN?What does VLAN provide?
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 network.
rimi.mnnit
- Jun 22nd, 2008
A virtual LAN, commonly known as a VLAN, is a group of hosts with a common set of requirements that communicate as if they were attached to the same wire, regardless of their physical location. A VLAN...
srivaish2000
- May 22nd, 2006
VLAN is used to increase security in a network. a data can be shared among some of the members in a network. all those members are grouped logically to for a virtual LAN.
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Name three network tools used to determine where a network connectivity is lost between two sites A&B?
TheDude
- Aug 3rd, 2006
PINGIMCP echo request utility. This utility is excellent for rudimentary estimation of the round-trip time and packet loss rate between hosts.TRACEROUTE (Win32 and *NIX versions differ somewhat)UDP/IC...
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What is file system? How a file is organised in file system? Give few examples?
giri_adepu
- Jun 2nd, 2008
collectioon of related files stored in a perticuler location is called file syetem.there three types of file system i disk based filesystem and 2 is network based file system and the other one is virt...
vidyadhar74
- Oct 11th, 2007
FAT16-File Allocation Table 16-bit Supports upto DOS6.22 Windows 3.1/3.11/95/98FAT32-File Allocation Table 32-bit Supports Windows 95/98/Windows 2000/xp/2003HPFS-High Performance Fils System Supports NT/2000/xp/2003NTFS-New Technoloy File System Supports NT/2000/xp/2003
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What is the difference between simplex and duplex.
arpit747
- Aug 28th, 2008
Duplex1 half duplex-channel can either sending or receiving at a time.
2.full duplex-channel can both send and receive at a time. Examples
duplex-cable service, can receive only.half duplex-walky talkyfull duplex-internet, mobile phone.meefriend4ever
- Nov 29th, 2007
basically there 4 modes of data transmission1)simplex2)half duplex3)full duplex4)full full duplexsimplex - one way?communication that is either reception or transmissionhalf duplex - two way ?communication that is receiving or transmitting data "but not at SAME TIME "
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What is Active Directory
manishtripathi
- Sep 20th, 2008
Active directory is directory service introduced with MS Windows 2000 Server that acts as a central repository for all the objects in a network, includes share files, applications, devices and compute...
MotoRooter
- Jul 27th, 2008
Active directory (sometimes referred to as an AD) does a variety of functions including the ability to provide information on objects, helps organize these objects for easy retrieval and access, allow...
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SATA hard disk
full form of SATA hard disk
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Editorial / Best Answer
Bharara88- Member Since Jun-2008 | Jun 25th, 2008
Serial Advanced Technology Attachment ( is a computer bus primarily designed for transfer of data between a computer and mass storage devices such as hard disk drives and optical drives.The main advantages over the older parallel ATA interface are faster data transfer, ability to remove or add devices while operating (hot swapping), thinner cables that let air cooling work more efficiently, and more reliable operation with tighter data integrity checks.
Bharara88
- Jun 25th, 2008
Serial Advanced Technology Attachment ( is a computer bus primarily designed for transfer of data between a computer and mass storage devices such as hard disk drives and optical drives.The main advan...
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Install Printer in Network Environment
You have been given 1 printer and 1 IP Address for installing it in a Networking EnvironmentHow will you do it?
coolkmn
- Apr 20th, 2009
Go to the start menu - setting - printers and fax - add a printer - local printer attached to this pc - create the new port - select the standard tcp/ip protocol - and enter the ip address and inser...
vinothkr
- Feb 23rd, 2009
Just you go to the start menu -> setting -> printers and fax -> add a printer -> local printer attached to this pc -> create the new port -> select the standard tcp/ip protocol -> and ...
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What is Protocol Data Unit?
The data unit in the LLC level is called the protocol data unit (PDU). The PDU contains of four fields a destination service access point (DSAP), a source service access point (SSAP), a control field and an information field. DSAP, SSAP are addresses used by the LLC to identify the protocol stacks on the receiving and sending machines that are generating and using the data. The control field specifies...
adityawalia9
- Jun 15th, 2010
LAN uses different ways of communicating. In some ways (like ETHERNET) data link layer is divided into two parts MAC and LLC (Logical Link Control).At LLC the data is known as Protocol Data Unit....
monami85
- May 23rd, 2008
each layer or the osi model , formats the data that it receives , the package of data moves through the layers is called protocol data unit. the protocol dat unit n...
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What is frame relay, in which layer it comes?
Frame relay is a packet switching technology. It will operate in the data link layer.
deven.pawar
- Jul 25th, 2007
Frame relay is a high-performance WAN protocol that operates at the physical and data link layers of the OSI reference model. Frame Relay originally was designed for use across Integrated Service...
Suraj
- Jan 20th, 2007
Frame Relay A more efficient replacement of the X.25 protocol (an unrelated packet relay technology that guarantees data delivery). Frame Relay is an industry-standard, shared-access, best-effort, swi...
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What is the Network Time Protocol?
Why is it used
sreekanth396
- Aug 9th, 2009
Network time protocol is a protocol for synchronizing the clock of computer system over?packet switched, variable latency data networks .NTP uses UDP protocol number 123 as it's? transport layer.
Tanveer
- Mar 21st, 2006
Network Time Protocol, a protocol to exchange and synchronize time on computer networks
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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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What does CIDR stand for?
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What is Private IP? Give an example?
Thomas Whitten
- Jun 27th, 2011
In the WAN topology, a network is divided usually by the firewall into the 'outside' or public IP addresses and the 'inside' or private IP addresses.? The is done because public IP addresses (provide...
kirankumar.ray
- Jul 16th, 2008
The address which can't be routed through public (internet) are private ip addressesand it is scheam of saving public addressex:in class A range is10.0.0.0 to 10.255.255.255
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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...
Computer Networks Interview Questions
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