during external variable definition, storage is set aside by the compiler
during external variable declaration, no storage is set aside by the compiler
the use of external variables may make debugging difficult
All of the above
it is binary representation of a character in the extended binary set
it is of integer type wchar_t
end of file is represented by WEOF
they provide a way for two way communication between functions
their scope extends from the point of definition through the remainder of the program
if they are not initialized, they will be initialised to zero
address is the numeric value associated with a memory location
two variables can have the same address
value of a variable can be an address
x is a four digit integer
x cannot be greater than a four digit integer
x is a four-bit integer
none of above