Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) v1.2ArchitectureEasy
A network administrator is designing a new campus network. The design must accommodate a high density of wireless clients, provide consistent quality of service for voice and video applications, and support rapid deployment of new services. Which network design principle primarily addresses the need for consistent QoS and rapid service deployment?
- AScalability
- BResilience
- CHierarchy
- DModularity
Show answer & explanationAnswer & explanation
Correct answer: D. Modularity
Modularity allows for the division of the network into smaller, manageable blocks. This simplifies design, deployment, and troubleshooting, making it easier to implement consistent QoS policies and deploy new services without impacting the entire network.
Why the other options are wrong
- A. Scalability ensures the network can grow to accommodate more users or devices, but doesn't inherently simplify QoS implementation or rapid service deployment as much as modularity.
- B. Resilience focuses on redundancy and fault tolerance to maintain uptime, not the speed of service deployment or QoS consistency across services.
- C. Hierarchy organizes the network into layers, improving predictability and fault isolation, but doesn't primarily focus on rapid service deployment or QoS consistency across varied services.
Network Modularity
The design principle of dividing a network into smaller, independent, and easily manageable functional blocks or modules.
- Simplifies design and implementation.
- Improves fault isolation and troubleshooting.
- Facilitates scalability and service deployment.
Memory trick: HRMS: Hierarchy, Resilience, Modularity, Scalability are key principles.