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Which two border nodes are available in the Cisco SD-Access architecture? (Choose two.)
Answer: CD
There are 3 types of border nodes in SD-Access: External. Default exit from fabric with no specific routes injection Internal. Gateway only for a set of networks, such as shared services prefixes Anywhere. Combination of external and internal functionality
Source: Adapted from community discussion — ExodiaNecross59
Which control-plane protocol is used to map an endpoint to a location in a Cisco SD-Access network?
Answer: C
Which feature is required for graceful restart to recover from a processor failure?
Answer: C
I think it is A. Cisco Nonstop Forwarding does not maintain a continuously active control plane during switchover. Instead, the forwarding plane uses known routes while the routing protocol information is being restored after switchover. In Cisco networking devices, packet forwarding is provided by Cisco Express Forwarding. Cisco Express Forwarding maintains the FIB and uses the FIB information that was current at the time of the switchover to continue forwarding packets during a switchover. The ability to continue packet forwarding eliminates downtime during the switchover. Each protocol depends on Cisco Express Forwarding to continue forwarding packets during switchover, while the routing protocols rebuild the Routing Information Base (RIB). https://www.cisco.com/en/US/technologies/tk869/tk769/technologies_white_paper0900aecd801dc5e2.html
Source: Adapted from community discussion — aai5548
What is the easiest way to enable SD-Access for all your remote sites after you have your campus SD-Access fabric up and running?
Answer: C
Which design consideration should be observed when EIGRP is configured on Data Center switches?
Answer: A
Answer is A reference : ENSLD 300-420 Cert Guide - Chapter 3 "Routing Protocol Characteristics, EIGRP, and IS-IS" - EIGRP in the Data Center
Source: Adapted from community discussion — Mardouk
What should you do If you are looking at a strategic win with a customer and the customer wants to examine Cisco ISE for longer than a few weeks?
Answer: C
An architect is designing a network that will utilize the spanning tree protocol to ensure a loop-free topology. The network will support an engineering environment where it is necessary for end-users to connect their own network switches for testing purposes. Which feature should the architect include in the design to ensure the spanning-tree topology is not affected by these rogue switches?
Answer: D
If you were to use bpdu guard, it would no longer be possible "for end-users to connect their own network switches for testing purposes". Their switches may send BPDU's and therefore the port would not become operation. So, in this case you would choose: root guard That way, they will be able to connect their switches, yet no topology change will occur.
Source: Adapted from community discussion — johnu329
Which node enables Cisco ISE to share contextual information on a device with Cisco Stealthwatch?
Answer: C
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 the convergence time for access layer switch failures. Which technique must the design include?
Answer: A
The correct answer is A. enabling BFD for EIGRP on the access layer uplinks. Bidirectional Forwarding Detection (BFD) is a protocol used to quickly detect failures in the forwarding path between two adjacent devices. By enabling BFD for EIGRP on the access layer uplinks, the engineer can significantly improve the convergence time for access layer switch failures. BFD works independently of the routing protocol and can provide faster failure detection than relying on routing protocol timers alone.
Source: Adapted from community discussion — SpicyMochi
An existing network solution is using BFD in echo mode. Several network devices are experiencing high CPU utilization, which an engineer has determined is related to the BFD feature. Which solution should the engineer leverage to reduce the CPU load?
Answer: A
SLow timers is correct. https://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/5_x/nx-os/interfaces/configuration/guide/if_cli/if_bfd.html Unde BFD echo function " BFD can use the slow timer to slow down the asycnhronous session when the echo function is enabled and reduce the number of BFD control packets that are sent between two BFD neighbors. "
Source: Adapted from community discussion — zlimvos
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