A company uses a VoIP service that requires low latency and low jitter. The network also carries bulk data transfers that are not time-sensitive. Which QoS mechanism would best help meet the VoIP application's requirements?

Increasing the MTU for all traffic

Prioritizing VoIP traffic over bulk data traffic

A company operates a VoIP call center. The network has a mix of voice and data traffic. The QoS policy currently uses a single priority queue for all voice traffic. During peak hours, the priority queue overflows, causing voice packet drops. The network team must improve voice quality without starving data traffic completely. What is the best approach?

Disable QoS on the voice traffic to allow it to use all available bandwidth.

Increase the priority queue size to accommodate all voice traffic.

Move all voice traffic to a separate VLAN with no data traffic.

Implement a policer on voice traffic and use a separate queue for critical voice calls.

A network engineer is troubleshooting intermittent application slowdowns. The network uses a hub-and-spoke topology with a central data center. The engineer suspects congestion on the spoke links. Monitoring shows that the spoke links are not saturated, but the central router's CPU is high. What is the most likely cause of the slowdown?

The DNS servers are overloaded.

The spoke links are not fast enough for the applications.

The applications are using UDP and experiencing packet loss.

The central router is dropping packets due to high CPU, causing retransmissions.

A company is implementing QoS for a converged network with voice, video, and data. The voice traffic requires low latency and jitter, while the video traffic requires high bandwidth and low loss. The data traffic is best-effort. The network team must configure QoS to satisfy all requirements. What is the best strategy?

Use the same DSCP marking for voice and video to reduce complexity.

Prioritize data traffic over voice and video to ensure business applications work.

Put voice and video in the same priority queue to simplify configuration.

Use a low-latency queue for voice and a separate bandwidth-guaranteed queue for video.

CiscoCertified Network Associate Automation (CCNA Automation)

Domain 6Objective 9

9. Explain the Impacts of Network Constraints on Applications 200-901 Practice Questions (Page 5)

Part of the 6.0 Network Fundamentals domain, which accounts for 15% of the 200-901 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~8–12 in this domain), expect 1–1 from this objective — we provide 47 practice questions to prepare you well beyond it. (estimate)

47questions here

10free pages

8concepts

15%of the exam

Questions 21–25

21foundation · easy
A network engineer is troubleshooting a slow database application. The application sends many small requests and waits for each response before sending the next. Which network characteristic most directly affects the total time to complete a transaction in this scenario?
Select an answer first
22foundation · easy
A company uses a VoIP service that requires low latency and low jitter. The network also carries bulk data transfers that are not time-sensitive. Which QoS mechanism would best help meet the VoIP application's requirements?
Select an answer first
23expert · hard
A company operates a VoIP call center. The network has a mix of voice and data traffic. The QoS policy currently uses a single priority queue for all voice traffic. During peak hours, the priority queue overflows, causing voice packet drops. The network team must improve voice quality without starving data traffic completely. What is the best approach?
Select an answer first
24expert · hard
A network engineer is troubleshooting intermittent application slowdowns. The network uses a hub-and-spoke topology with a central data center. The engineer suspects congestion on the spoke links. Monitoring shows that the spoke links are not saturated, but the central router's CPU is high. What is the most likely cause of the slowdown?
Select an answer first
25expert · hard
A company is implementing QoS for a converged network with voice, video, and data. The voice traffic requires low latency and jitter, while the video traffic requires high bandwidth and low loss. The data traffic is best-effort. The network team must configure QoS to satisfy all requirements. What is the best strategy?
Select an answer first

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9. Explain the Impacts of Network Constraints on Applications 200-901 Practice Questions (Page 5)

Questions 21–25

A network engineer is troubleshooting a slow database application. The application sends many small requests and waits for each response before sending the next. Which network characteristic most directly affects the total time to complete a transaction in this scenario?

A company uses a VoIP service that requires low latency and low jitter. The network also carries bulk data transfers that are not time-sensitive. Which QoS mechanism would best help meet the VoIP application's requirements?

Keep studying — 6.0 Network Fundamentals