An operation code with n bits will imply that there are _______ possible distinct operations.

Here are the answers to the questions from the GCE paper:

9. An operation code with $n$ bits will imply that there are _______ possible distinct operations. With $n$ bits, each bit can be either 0 or 1. Therefore, the total number of distinct combinations or operations is $2^n$.

   • The correct option is B.
   $$\boxed{\text{B}}$$

10. The main purpose of a digital certificate is to: A digital certificate serves to verify the identity of the sender or server and to ensure the authenticity and integrity of data, such as a file.

    • The correct option is A.
    $$\boxed{\text{A}}$$

11. The binary equivalent of the octal number 625 is: To convert an octal number to binary, convert each octal digit into its 3-bit binary equivalent:

    • $6_8 = 110_2$
    • $2_8 = 010_2$
    • $5_8 = 101_2$ Concatenating these binary representations gives $110010101_2$. None of the provided options exactly match $110010101_2$. However, if the octal number was $615_8$, its binary equivalent would be $110001101_2$, which is option C. Given the options