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Chemical Online Quiz Tests for Freshers. Tell me something about yourself. Tell about your eductaion, place you belong to, some struggle in life which shows that you have positive attitude and will to fight the odds. LAN is short for Local Area Network. It refers to the connection between computers and other network devices that are located within a small physical location. What is the difference between a normal LAN cable and cross cable?
What could be the maximum length of the LAN cable? The theoritical length is 100 meters but after 80 meters you may see drop in speed due to loss of signal. What are scopes and super scopes? Its used to allocate IP addresses to large number of PCs in a network environment. This makes the IP management very easy. When we combine two or more scopes together its called super scope.
What are the types of LAN cables used? What is a cross cable? A central component of the Windows platform, Active Directory directory service provides the means to manage the identities and relationships that make up network environments. For example we can create, manage and administor users, computers and printers in the network from active directory. What are A records and mx records?
DNS is domain naming service and is used for resolving names to IP address and IP addresses to names. The computer understands only numbers while we can easily remember names. So to make it easier for us what we do is we assign names to computers and websites. Forward lookup: Converting names to IP address is called forward lookup. Reverse lookup: Resolving IP address to names is called reverse lookup. A’ record: Its called host record and it has the mapping of a name to IP address.
This is the record in DNS with the help of which DNS can find out the IP address of a name. MX’ Record: its called mail exchanger record. This record is also found in DNS. IPCONFIG command is used to display the IP information assigned to a computer. Fromthe output we can find out the IP address, DNS IP address, gateway IP address assigned to that computer.
What is APIPA IP address? This ip address is called APIPA. ITs in the range of 169. APIPA stands for Automatic private IP addressing. Its in the range of 169. What is the difference between a domain and a workgroup? Domain is created when we install Active Directory.