Answer:
The buffer has room for 499 characters (you always have to reserve 1 for the terminating \0 character).
The code copies all characters passed in the commandline (argv[1]) into this buffer without checking. If there are more than 499 characters supplied, these will be copied into a memory location that is not intended for it. This will probably cause your program to crash, but if the extra data is somehow executed by the processor as if it were a program, this could be a way to sneak a virus into your computer.
So, while copying data, it is important to always limit the maximum amount to the allocated space.
Answer:
B
Explanation:
This question demonstrates the concept of method overloading
Method overloading means having different versions of the same method. In this case the method mystery() has three versions. The compiler is able to determine which method to call by their different parameters
The first implementation of mystery requires an array of integers as parameter
The second implementation requires an int variable
The third implementation requires a String
The Method call mystery(6 * 8) will output B because 6*8 evaluates to an integer which is the expected argument.
Answer:
Charles Babbage, an English mechanical engineer and polymath, originated the concept of a programmable computer. He is considered the "father of the computer". He invented the first mechanical computer in the early 19th century.
Explanation:
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Answer: Zombies
Explanation: Zombie is a computer device that is responsible for the compromising the system and making it prone to several destruction such as the Trojan horse virus,hackers and other viruses as well. Zombie makes the computer system to get malfunctioned easily ,that is without much security and various malicious functions can be performed.They basically act as the infected computer .
I believe they are icons.
