Designing networks that scale as the organization grows is a key qualification for a talented network consulting engineer. When the interviewer at Cisco asks you about this, you should have a clear answer as to how you design networks that are cost-effective for the organization's current needs that can scale easily over time. Your answer can include solutions such as scalable technology, systems, and software that are easily upgraded or expanded, providing standby cabling solutions, designing data centers for growth, and utilizing third-party and service provider resources.