1.2 Describe Cisco Network Software Architecture 350-501 Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   In Cisco IOS XE, what is the role of the Linux kernel in the architecture?

   • AIt provides a hypervisor layer that virtualizes the router hardware for multiple tenants.
   • BIt is used only for the data plane, while the control plane runs on a separate real-time operating system.
   • CIt replaces the IOS CLI and all routing protocols with native Linux networking tools.
   • DIt provides the base operating system on which IOS control-plane processes run as separate user-space processes.
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2. 12expert · hard

   A service provider is consolidating its network and must choose a single operating system for three different router roles: (1) a small customer-premises router with basic routing, (2) an aggregation router that requires process restart and Linux application hosting, and (3) a large core router that requires distributed processing and in-service software upgrades. The provider wants to minimize operational complexity by using the same OS across all three roles. Which approach is most appropriate?

   • AUse different operating systems for each role: classic IOS for the CPE, IOS XE for the aggregation router, and IOS XR for the core router.
   • BUse IOS XR for all three roles because it is the most feature-rich and secure.
   • CUse classic IOS for all three roles because it is the most mature and widely supported.
   • DUse IOS XE for all three roles because it is Linux-based and supports process restart.
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4. 13expert · hard

   A network engineer is troubleshooting a router running Cisco IOS XE. The router is experiencing high CPU usage, and the engineer suspects a specific process is causing the issue. The engineer wants to confirm the process and then restart it if necessary. Which two commands would be used?

   • Ashow running-config and reload
   • Bshow version and copy running-config startup-config
   • Cshow interfaces and clear counters
   • Dshow processes cpu and process restart
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5. 14expert · hard

   A network engineer is troubleshooting a router that crashes intermittently. The router runs classic IOS. The engineer suspects a memory leak in the OSPF process. The router has been stable for months, but the crashes started after a recent configuration change. Which action is most appropriate to diagnose the issue?

   • AReboot the router and assume the issue is resolved.
   • BUpgrade to IOS XE immediately to fix the issue.
   • CMonitor memory usage using 'show processes memory' and correlate with crash times.
   • DRestart the OSPF process using the 'restart ospf' command.
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6. 15application · medium

   A network engineer is troubleshooting a router that has experienced a crash. The engineer suspects that a memory leak in the BGP process caused the crash. The router runs classic IOS. Which statement accurately describes the impact of a memory leak in classic IOS?

   • AThe memory leak will only affect the BGP process, and the router will continue to forward traffic.
   • BThe BGP process will be restarted automatically, and other processes will continue unaffected.
   • CThe memory leak can cause the entire router to crash because all processes share a single memory space.
   • DThe router will automatically switch to a backup IOS image to recover.
   Reveal Solution Discussion Select an answer first