Cisco Certified Support Technician (CCST) NetworkingIP ServicesMedium
A network engineer is troubleshooting a slow internet connection for a specific application. Upon investigation, they find that other applications on the same network are performing normally. Which IP service could be configured to prioritize traffic for the critical application over less important traffic?
- ADHCP
- BNTP
- CQoS
- DDNS
Show answer & explanationAnswer & explanation
Correct answer: C. QoS
QoS (Quality of Service) allows network administrators to prioritize certain types of network traffic over others, ensuring that critical applications receive the necessary bandwidth and low latency, even during network congestion.
Why the other options are wrong
- A. DHCP assigns IP addresses, not related to traffic prioritization.
- B. NTP synchronizes time, not related to traffic prioritization.
- D. DNS resolves domain names, not related to traffic prioritization.
QoS (Quality of Service)
A set of technologies that guarantee a certain level of performance for data flow over a network.
- Prioritizes traffic types.
- Ensures bandwidth for critical applications.
- Reduces latency and jitter for real-time services.
Memory trick: QoS: Quickly On Schedule, traffic gets priority.