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Networking Interview Questions

Computer  Networking  Interview  Questionstechnology is used for transmitted the voice
over the IP based long distance network to
Here are the basic interview questions formake phone calls. VOIP phone calls are very
the network administrators, systemcheap and a large number of the corporate
administrators and IT manager posts. Theseoffices and home users are using VOIP
questions provide the basic information abouttechnology to make long distance phone calls.
the network communication technology, network
topologies, network troubleshootingWhat  is  Wi  Max  Technology?
techniques, network devices and the basic
overview  of the LAN/WAN communication model.Wi Max is a wireless broadband technology and
it is a advance shape of the Wi Fi (which was
What  is  DHCP?a base band technology). Wi Max supports
data, video and audio communication at the
DHCP stands for Dynamic Host Configurationsame time at a very high speed up to 70 Mbps.
Technology. The basic purpose of the DHCP is
to assign the IP addresses and the otherDefine  Network  Gateway
network configuration such as DNS, Gateway
and other network settings to the clientNetwork Gateway can be software or a
computers. DHCP reduces the administrativehardware. A gateway is usually a joining
task of manually assigning the IP addressespoint in a network i.e. it connects two
to the large number of the computers in anetworks. A computer with two LAN cards can
network.act  as  a  gateway.
What  is  DNS  and  how  it  works?What  is  a  Router?
DNS stands for Domain name system and itA router routes the traffic to its
translates (converts) the host name into thedestination based on the source and
IP address and IP address into to the hostdestination IP addresses, which are placed in
name. Every domain and the computer on thethe  routing software known as routing table.
internet is assigned a unique IP address.
The communication on the internet and in theHow  Fiber  Optic  Cable  Works
network is based on the IP addresses. IP
addresses are in this format 10.1.1.100,Fiber optics provides the fastest
220.12.1.22.3, 1.1.1.1 etc. IP addressescommunication medium for data and voice. Data
can't be remembered but the host names (e.g.can travel at the speed of light through the
xyz.com, abc.com) are easy to rememberfiber optic cables. ISPs and corporate
instead  of  their  IP  addresses.offices are usually connected with each other
with the fiber optic cables to provide high
What  is  a  Firewall?speed  connectivity.
Firewall is a protective boundary for aWhat  is  File  Server?
network and it prevents the unauthorized
access to a network. Most of the WindowsA file server is a computer in a network that
operating system such as Windows XPauthenticates the user access in a network
Professional has built-in firewall utilities.such  as  Windows  2000/2003  Servers.
There are the large number of the third
party firewall software and the basic purposeDefine  Seven  Layers  of  OSI  Model
of all the firewall software and hardware is
same i.e. to block the unauthorized userThere are seven layers of the OSI model. The
access  to  a  network.basic purpose of these layers is to
understand the communication system and data
What  is  WAN?transmission steps. The seven layers are
Application, Presentation, Session,
WAN stands for wide area network and itTransport, Network, Data Link and Physical.
covers the broader geographical area.You can remember the name of these layers by
Basically there are three types of a computerthis phrase. "All people seems to need data
network LAN (Local Area Network), MANprocessing".
(Metropolitan Area Network) and WAN (Wide
Area Network). The communication in a WAN isDefine  GSM  Technology
based on the Routers. A WAN network can cover
a  city,  country  or  continents.GSM is a short range wireless technology and
is usually used in the mobile phones, hand
Define  VOIP  Communication  Technologyhelp devices, MP3 players, Laptops, computers
and in cars.
VOIP stands for Voice over IP and this



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