6.2 Compare Traditional Networks with Controller-Based Networking 200-301 Practice Questions (Page 4)

Questions 16–20

1. 16application · medium

   A network team wants to implement a new security policy that requires blocking traffic to a specific set of IP addresses across all firewalls and switches. They want to avoid manual CLI changes on each device. Which controller-based feature would best enable this?

   • AUse OSPF to distribute the ACL information to all devices.
   • BUse a script that logs into each device via SSH and applies the ACL manually.
   • CDefine the policy once on the controller and have it pushed to all devices via the southbound interface.
   • DConfigure the ACL on the core router and rely on it to filter traffic for the entire network.
   Reveal Solution Discussion Select an answer first
2. 17application · medium

   A growing company needs to add new network services (like QoS policies and access lists) across hundreds of devices frequently. The current traditional network requires manual CLI changes on each device, which is slow and error-prone. Which benefit of controller-based networking directly addresses this operational pain point?

   • AThe control plane is distributed, which allows faster convergence during network changes.
   • BEach device maintains its own independent configuration, which simplifies troubleshooting.
   • CCentralized policy definition that is pushed to all devices automatically, reducing per-device configuration effort.
   • DThe data plane becomes more intelligent and can make policy decisions without any controller involvement.
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4. 18application · medium

   A network administrator is explaining to a junior engineer why a traditional network uses protocols like OSPF and STP. Which statement accurately describes the role of these protocols in a traditional network?

   • AThey are used by a central controller to compute paths and push them to the devices.
   • BThey allow each device to independently determine the network topology and make forwarding decisions.
   • CThey are proprietary protocols that only work on Cisco devices.
   • DThey are only used for management purposes and do not affect the data plane.
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5. 19foundation · easy

   Which statement contrasts management and configuration in traditional versus controller-based networks?

   • ATraditional networks use centralized APIs; controller-based networks use CLI on each device.
   • BTraditional networks rely on per-device CLI; controller-based networks use centralized, API-driven configuration.
   • CBoth use APIs, but traditional networks use only NETCONF.
   • DBoth use CLI, but controller-based networks require more commands.
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6. 20application · medium

   A company is deploying 50 new access switches across multiple branches. The network team wants to apply a consistent VLAN configuration to all switches without logging into each device individually. Which approach best leverages controller-based networking to meet this requirement?

   • ACreate a script that uses SSH to connect to each switch and apply the VLAN configuration one by one.
   • BConfigure a template on the first switch and copy the running-config to all other switches using TFTP.
   • CUse a network controller with a REST API to push the VLAN configuration to all switches programmatically.
   • DEnable OSPF on all switches and use OSPF to distribute VLAN information.
   Reveal Solution Discussion Select an answer first