300-420 Online Practice Questions and Answers

When vEdge router redundancy is designed, which FHRP is supported?

A. HSRP

B. OMP

C. GLBP

D. VRRP

A router running ISIS is showing high CPU and bandwidth utilization. An engineer discovers that the router is configured as L1/L2 and has L1 and L2 neighbors. Which step optimizes the design to address the issue?

A. Make this router a DIS for each of the interfaces

B. Disable the default behavior of advertising the default route on the L1/L2 router

C. Configure the router to be either L1 or L2

D. Configure each interface as either L1 or L2 circuit type

An engineer is working with NETCONF and Cisco NX-OS based devices. The engineer needs a YANG model that supports a specific feature relevant only to Cisco NX-OS. Which model must the engineer choose?

A. Native

B. IEEE

C. OpenConfig

D. IETF

An engineer is designing a Layer 3 campus network running EIGRP between the core, aggregation, and access layers. The access layer switches will be connected to the aggregation layer using Layer 3 copper connections. The engineer wants to improve convergence time for access layer switch failures. Which technique must the design include?

A. enabling BFD for EIGRP on the access layer uplinks

B. reducing the EIGRP Hello / Hold timer values

C. EIGRP summarization from core to aggregation layer

D. EIGRP summarization from access to aggregation layer

An engineer must propose a solution for a campus network that includes the capability to create multiple Layer 3 virtual networks. Each network must have its own addressing structure and routing table for data forwarding. The solution must be scalable to support hundreds of virtual networks and allow simple configuration and management with minimal administrative overhead. Which solution does the engineer recommend?

A. hop-by-hop EVN

B. multihop MPLS core

C. multihop IPsec tunneling

D. hop-by-hop VRF-Lite

A company is planning to open two new branches and allocate the 2a01:c30:16:7009::3800/118 IPv6 network for the region. Each branch should have the capacity to accommodate a maximum of 200 hosts. Which two networks should the company use? (Choose two.)

A. 2a01:0c30:0016:7009::3a00/120

B. 2a01:0c30:0016:7009::3b00/121

C. 2a01:0c30:0016:7009::3a80/121

D. 2a01:0c30:0016:7009::3c00/120

E. 2a01:0c30:0016:7009::3b00/120

Which function does the Cisco SD-Access intermediate node perform?

A. Act as LISP proxy tunnel router.

B. Route and transport IP traffic.

C. Act as an anycast Layer 3 gateway.

D. Map users to a virtual network.

Which protocol is deployed through LAN automation to build node-to-node underlay adjacencies in SDA?

A. IS-IS

B. OLISP

C. OSPF

D. VXLAN

When differentiating between IETF, OpenConfig, and Cisco native YANG models, how does the use of containers differ?

A. IETF and Cisco native models use one container for operational data and another container for configuration data, and OpenConfig uses a single container for operational data and configuration data.

B. OpenConfig uses one container for operational data and another container for configuration data, and IETF and Cisco native models use a single container for operational data and configuration data.

C. Cisco native models use one container for operational data and another container for configuration data, and OpenConfig and IETF use a single container for operational data and configuration data.

D. IETF and Cisco native models use a single container for operational data and configuration data, and OpenConfig uses one container for operational data and another container for configuration data.

Which node enables Cisco ISE to share contextual information on a device with Cisco Stealthwatch?

A. Monitoring and Troubleshooting Node

B. Inline Posture Node

C. pXGrid Controller

D. Policy Administration Node