The best thing to do when an error message appears when it is not supposed to, as in if you are blocked by an administrator and it appears then its supposed to, it is best to contact someone who can investigate whether or not something is happening to your computer. That could be a parent, if they are good with computers, or just tech support at a store, provided they also know computers. Most of the time your computer just makes a mistake so nothing to worry about, but make sure to have it checked just to be sure.
Answer: Java Virtual Machine(JVM)
Explanation: In java,there is the process of the management of the memory by own self or automation , this is known as the garbage collection .The program in it compile to be executed by the java virtual machine(JVM).During this process , object get together in a sort of heap and then unnecessary object are detected which are of no use and delete them to make space for the memory . Therefore, garbage collection is carried out by java virtual machine(JVM).
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802.11a - the 1st generation, frequency - 5 GHz, max. data speed is 54 Mbits/sec.
802.11b - the 2d generation, frequency - 2.4 GHz, max. data speed is 11 MBits/sec.
802.11n - the last generation, frequency are - 2.4 & 5 GHz, max. data speed is 150 MBits/sec. and 600 MBits/sec. Supports 802.11a and 802.11b standarts.
