It means that something went wrong with the wireless connection and that it couldn't connect. You either need to be closer to the wireless modem or the modem needs to be on. Sometimes you can't conect because the system is too busy and it just didnt connect. This isn't a serious problem or anything, its very common.
in panic mode recovery, if an error detected at a point, then discart next sequence of tokens until end of the sentence found. Then start analyzing from that point. But in phrase level recovery, if an error detected at a point, then correct that point by replasing another token string which is selected by the error handler(Ex:replacing ";" for "," at the end of the senetence)
False. Note that a station does NOT necessarily choose the closest access point. It will choose the one with the strongest signal and the lowest error rate. Network + Guide to Networks 5th edition, page 375, chapter 8.
it is a access point that is free to use
eg wrong password or you are not close enough to your internet access point and check WEP instead of WPA
Trapdoor is a secret undocumented entry point into a program used to grant access without normal methods of access authentication. A trap is a software interrupt, usually the result of an error condition.
In Priority-Based Access, the access point device also functions as a point coordinator
you cant get internet without an access point.
mesh sdr access point
Infrastructure mode requires an access point. Ad-hoc does not use an access point.
A wireless access point can function as an access point and it can also be used as a repeater....
Systems don't throw exceptions. System errors are low-level errors which you have to detect programmatically. In C, most functions that cause system errors will typically return -1 to indicate an error has occurred and 0 to indicate no error. If an error occurs, you should examine the global errno variable to determine the actual error code (as defined in <errno.h>). You can use the strerror() function to obtain a pointer to the string representation of the error, and perror() to display the error. If you cannot handle the error there and then, then you should pass the error to your error handling code. Languages that support exception handling make it easy to pass errors from the point they are detected to a point where they can be handled. Simply transform the error code into an exception object and then throw the object, allowing the exception handling mechanism to deal with it.
If an access point receives data from a client station, it sends an acknowledgment to the client that the data has been received, this acknowledgment keeps the client from assuming that a collision occurred and prevent a data retransmission by the client.