When ever we open a file using any programming language there can be only two possibilities that something from the file will be put in the output stream( here we assume that the file opening does not cause any error ) or there will be error like if the file does not exist or the syntax with which the file is being accessed is not according to the standards of language used.
Under IEEE 802.1Q, the maximum number of VLANs on a given Ethernet network is 4,094 (4,096 values provided by the 12-bit VID field minus reserved values at each end of the range, 0 and 4,095).
