subject: Networking Interview Questions [print this page] Here are the basic interview questions for the network directors, system administrators and IT manager posts. These queries offer the basic data regarding the network communication technology, network topologies, network troubleshooting techniques, network devices and the essential overview of the LAN - WAN communication model.
What is DHCP?
DHCP stands for Dynamic Host Configuration Technology. The basic purpose of the DHCP is to assign the IP addresses and the opposite network configuration such as DNS, Gateway and alternative network settings to the shopper computers. DHCP reduces the administrative task of manually assigning the IP addresses to the massive range of the computers in a very network.
What's DNS and how it works?
DNS stands for Domain name system and it translates (converts) the host name into the IP address and IP address into to the host name. Each domain and the computer on the internet is assigned a unique IP address. The communication on the internet and in the network is predicated on the IP addresses. IP addresses are in this format 10.1.1.a hundred, 220.12.1.22.three, 1.1.1.1 etc. IP addresses cannot be remembered however the host names are easy to recollect rather than their IP addresses.
What's a Firewall?
Firewall is a protecting boundary for a network and it prevents the unauthorized access to a network. Most of the Windows operating system like Windows XP Professional has built-in firewall utilities. There are the massive variety of the third party firewall software and the fundamental purpose of all the firewall software and hardware is same i.e. to block the unauthorized user access to a network.
What's WAN?
WAN stands for wide space network and it covers the broader geographical area. Basically there are 3 varieties of a pc network LAN (Native Space Network), MAN (Metropolitan Space Network) and WAN (Wide Space Network). The communication in an exceedingly WAN is predicated on the Routers. A WAN network will cover a city, country or continents.
Define VOIP Communication Technology
VOIP stands for Voice over IP and this technology is used for transmitted the voice over the IP based mostly long distance network to form phone calls. VOIP phone calls are terribly low-cost and a large variety of the company offices and home users are using VOIP technology to form long distance phone calls.
What's Wi Max Technology?
Wi Max could be a wireless broadband technology and it's a advance form of the Wi Fi (that was a base band technology). Wi Max supports information, video and audio communication at the same time at a terribly high speed up to seventy Mbps.
Outline Network Gateway
Network Gateway can be software or a hardware. A gateway is usually a joining point in an exceedingly network i.e. it connects two networks. A computer with two LAN cards will act as a gateway.
What is a Router?
A router routes the traffic to its destination based on the source and destination IP addresses, which are placed in the routing software known as routing table.
How Fiber Optic Cable Works
Fiber optics provides the fastest communication medium for data and voice. Data will travel at the speed of light through the fiber optic cables. ISPs and corporate offices are sometimes connected with each different with the fiber optic cables to supply high speed connectivity.
What's File Server?
A file server may be a laptop in a very network that authenticates the user access during a network such as Windows 2000/2003 Servers.
Outline Seven Layers of OSI Model
There are seven layers of the OSI model. The basic purpose of those layers is to perceive the communication system and knowledge transmission steps. The seven layers are Application, Presentation, Session, Transport, Network, Data Link and Physical. You can bear in mind the name of those layers by this phrase. "All individuals appears to want knowledge processing".
Define GSM Technology
GSM is a short range wireless technology and is typically utilized in the mobile phones, hand facilitate devices, MP3 players, Laptops, computers and in cars.
