Palo Alto Networks Certified Cybersecurity Entry-level Technician (PCCET)Network SecurityEasy
A network engineer is designing a highly available network architecture for a critical application. The design includes redundant links and devices to ensure that if one component fails, traffic can automatically reroute through an alternative path with minimal disruption. Which network fundamental concept is being prioritized in this design?
- AScalability
- BSecurity
- CReliability
- DEfficiency
Show answer & explanationAnswer & explanation
Correct answer: C. Reliability
Reliability in network design means ensuring that the network remains operational and accessible, even in the event of component failures, which is achieved through redundancy and failover mechanisms.
Why the other options are wrong
- A. Scalability refers to the network's ability to handle increasing demands or growth, not its ability to withstand failures.
- B. Security protects against unauthorized access or attacks, which is a different concern than maintaining availability during failures.
- D. Efficiency focuses on optimal use of resources (e.g., bandwidth, processing power), not primarily on uninterrupted operation during failures.
Network Reliability
The ability of a network to provide continuous and consistent service, even in the presence of component failures.
- Achieved through redundancy (duplicate components) and failover mechanisms.
- Minimizes downtime and ensures business continuity.
- Essential for critical applications and services.
Memory trick: Design goals: RES S (Reliability, Efficiency, Security, Scalability).