Which statement is true about variable-length subnet masking?
- Each subnet is the same size.
- The size of each subnet may be different, depending on requirements.
- Subnets may only be subnetted one additional time.
- Bits are returned, rather than borrowed, to create additional subnets.
Explanation:In variable-length subnet masking, bits are borrowed to create subnets. Additional bits may be borrowed to create additional subnets within the original subnets. This may continue until there are no bits available to borrow.