If you are using custom chains, what two rules do you also need?

• A. Jump and Return
• B. Accept and Drop
• C. Forward and Back
• D. Open and Close

Answer: (A)

Custom chains in MikroTik firewall act like subroutines. To use them, you jump from the main chain into the custom chain, so the processing starts at the first rule there. To continue processing from where you left off in the original chain, you need a Return action in the custom chain. The Jump brings traffic into the subroutine, and the Return hands control back to the calling chain after the custom rules have finished (or when you choose to exit early). This pairing is what makes custom chains reusable and predictable: you enter with Jump and exit with Return, ensuring the rest of the original chain can still be evaluated.