1.4 Interpret QoS Configurations 350-401 Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   A network engineer is comparing shaping and policing. Which statement correctly describes a key difference between the two?

   • ABoth shaping and policing drop excess traffic.
   • BShaping buffers excess traffic, while policing typically drops or re-marks excess traffic.
   • CPolicing buffers excess traffic, while shaping drops excess traffic.
   • DBoth shaping and policing buffer excess traffic.
   Reveal Solution Discussion Select an answer first
2. 2foundation · easy

   In a Cisco QoS policy map, which command is used to mark traffic with a specific DSCP value?

   • Aset dscp
   • Bmatch dscp
   • Cpriority
   • Dpolice
   Reveal Solution Discussion Select an answer first
4. 3foundation · easy

   A network engineer is reviewing a QoS configuration on a Cisco router. The configuration includes a class map that matches traffic based on DSCP values, a policy map that references the class map and applies a marking action, and the policy map is then applied to an interface in the output direction. Which statement correctly describes the purpose of the class map in this QoS configuration?

   • AIt applies the policy to the interface.
   • BIt specifies the classification criteria used to identify traffic.
   • CIt sets the DSCP value for the matched traffic.
   • DIt defines the queuing behavior for the matched traffic.
   Reveal Solution Discussion Select an answer first
5. 4foundation · easy

   A QoS policy is applied globally on a Cisco router. Which statement best describes the scope of this policy?

   • AIt applies only to the management interface.
   • BIt applies to all interfaces on the router.
   • CIt applies only to interfaces that do not have a specific policy.
   • DIt applies only to interfaces with an IP address.
   Reveal Solution Discussion Select an answer first
6. 5application · medium

   A network engineer is configuring QoS on a switch. The engineer creates a class map that matches IP precedence 5 and a policy map that sets DSCP EF. The policy is applied to an interface. What is the effect on traffic that arrives with IP precedence 5?

   • AThe traffic is queued in a priority queue because IP precedence 5 is set
   • BThe traffic is dropped because IP precedence 5 is not valid
   • CThe traffic is transmitted unchanged because the policy only applies to DSCP
   • DThe traffic is re-marked to DSCP EF, which is 46
   Reveal Solution Discussion Select an answer first