Sunday, December 16, 2007

Networks : Automatically Self-Configure IP address and subnet mask

Which feature of Windows XP permits Dynamic Host Configuration Protocol (DHCP) clients to automatically self-configure an IP address and subnet mask when their DHCP server cannot be found?
1. >>APIPA
2. IPCONFIG
3. DNS
4. WINS
Explanation : Automatic Private IP Addressing (APIPA) is a feature of Windows 98/2000/XP that permits DHCP clients to automatically self-configure an IP address and subnet mask when their DHCP server cannot be found. When Windows is booting, if it cannot find a DHCP Server, APIPA configures an IP address for the computer automatically. This address is in the range 169.254.0.1 to 169.254.255.254 with a subnet mask of 255.255.0.0. The client uses this address until the DHCP server becomes available.

Domain Name Service (DNS) is used to resolve a fully qualified domain name to an IP address. When one computer needs to establish a communication session with another, the sending computer queries a DNS server for the IP address of the destination host. The DNS server responds with the IP address, which is used by the source computer to establish the connection. It does not assign IP addresses to clients.

Windows Internet Name Service (WINS) resolves NetBIOS names to IP addresses in a Windows network. It does not assign IP addresses to clients.

IPCONFIG is a utility used by Windows 2000 to view current IP configuration information. It does not assign IP addresses to clients.

Objective: Networks