2.2 Data, Control, and Management Plane Technologies 400-007 Practice Questions (Page 4)

Questions 16–18

1. 16foundation · easy

   Which data plane mechanism is used to prioritize certain types of traffic to ensure that delay-sensitive applications, such as voice, receive preferential treatment over less critical traffic?

   • ARouting protocol convergence
   • BEncapsulation in GRE tunnels
   • CManagement plane configuration backup
   • DQuality of Service (QoS) queuing and scheduling
   Reveal Solution Discussion Select an answer first
2. 17foundation · easy

   In a network device, how does the control plane influence the data plane's forwarding decisions?

   • AThe control plane is responsible for the physical transmission of packets.
   • BThe data plane sends packets to the control plane for every forwarding decision.
   • CThe control plane directly modifies the payload of data packets.
   • DThe control plane populates the forwarding table that the data plane uses to forward packets.
   Reveal Solution Discussion Select an answer first
3. 18application · medium

   A service provider is deploying a new network management system (NMS) to monitor the health of its core routers. The NMS must be able to collect performance metrics (e.g., CPU, memory, interface utilization) and receive asynchronous notifications of faults (e.g., interface down). The design must also ensure that the management traffic is secure and authenticated. Which combination of protocols should be used?

   • AUse syslog for receiving fault notifications and use ICMP ping for polling device health.
   • BUse SNMPv2c for polling metrics and for receiving traps, and rely on the community string 'public' for authentication.
   • CUse NETCONF for polling metrics and for receiving notifications, and rely on SSH for transport security.
   • DUse SNMPv3 for polling metrics and for receiving informs, and configure authentication and privacy (authPriv) for secure communication.
   Reveal Solution Discussion Select an answer first