Answer:
It can be "ON" or "OFF". So it can store the numbers 1 and 0, but it certainly doesn't have the capacity to store a letter of the alphabet.
Explanation:
Answer TCP/IP is the most common protocol in Local Area Networks.
Not entirely sure what you want to achieve, but consider this program:
var a = 'foo';
var b = 'bar';
var c = { first : a, second : b };
console.log(JSON.stringify(c, null, 4));
A json object c is constructed using the values from variables a and b. Is this what you mean?