9. Explain the Impacts of Network Constraints on Applications 200-901 Practice Questions (Page 6)

Questions 26–30

1. 26expert · hard

   A company is designing a network for a new campus with multiple buildings. The design team is considering a full mesh topology versus a hub-and-spoke topology. The main application is a real-time collaboration tool that is sensitive to latency. The campus has 10 buildings. What is the most appropriate design choice?

   • AA ring topology to provide redundancy with fewer links.
   • BHub-and-spoke topology to reduce cost and simplify management.
   • CFull mesh topology to provide direct paths between all buildings, reducing latency.
   • DA bus topology to minimize cabling.
   Reveal Solution Discussion Select an answer first
2. 27application · medium

   A network administrator notices that during peak hours, the company's internet link is heavily congested. Voice calls are experiencing poor quality, but email and web browsing are still functional. What is the best action to improve voice quality without affecting other applications?

   • AIncrease the buffer size on the router to reduce drops.
   • BSwitch voice traffic to TCP to ensure reliability.
   • CApply QoS to prioritize voice traffic over other traffic.
   • DBlock all non-voice traffic during peak hours.
   Reveal Solution Discussion Select an answer first
4. 28application · medium

   A company deploys VoIP phones across multiple sites. Users complain of choppy audio and distorted calls, but the network shows low average latency and no packet loss. Which network metric is most likely causing the issue?

   • AHigh jitter causing packets to arrive with variable delay
   • BMTU mismatch causing fragmentation
   • CDNS resolution delays for the VoIP gateway
   • DInsufficient bandwidth on the access switches
   Reveal Solution Discussion Select an answer first
5. 29application · medium

   A company is deploying a new application that requires real-time collaboration with audio and video. The network team must select a WAN provider. Which set of network metrics is most critical for this application?

   • ALow latency and low jitter
   • BHigh MTU and low CPU usage on routers
   • CLow cost and high availability
   • DHigh bandwidth and low packet loss
   Reveal Solution Discussion Select an answer first
6. 30expert · hard · select all that apply

   A company has a 50 Mbps WAN link. They plan to run a video conferencing application that requires 2 Mbps per call, a file transfer service that can use up to 30 Mbps, and a VoIP service that requires 100 kbps per call. During peak hours, there are 10 video calls, 20 VoIP calls, and multiple file transfers. The link is congested. Select all the measures that would help ensure the real-time applications perform well. (Select all that apply.)

   • AImplement QoS to prioritize video and VoIP traffic.
   • BUse UDP for the file transfer service to reduce overhead.
   • CIncrease the WAN link bandwidth to 100 Mbps.
   • DRate-limit the file transfer service to a maximum of 10 Mbps.
   Check answers Discussion Select an answer first