Which design practices does the material recommend for large or complex networks? Select ALL that apply.

### Why this is right - **Start with `10.0.0.0/8`**: the material gives this as a starting point for large or complex designs. - **Divide the design into a small number of large areas**: this is another stated planning guideline. - **Keep network addresses contiguous within an area or router**: contiguous allocation supports route summarization. ### The concept Efficient design considers how routes will be represented, not just whether each host has an address. When a router serves contiguous network blocks, those routes may be represented by a summary. A small number of large areas can make the address plan easier to organize. The material's recommendations are planning guidelines, not a claim that every real network must use one identical topology. ### The other options - **D. Assign unrelated, scattered network addresses whenever possible**: scattered blocks work against the material's recommendation to keep addresses contiguous and can make summarization harder. ### Terms - **IP**: Internet Protocol. The system that identifies network destinations for routing. ### Remember Contiguous address allocation makes route aggregation easier.