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  1. Home
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  3. 300-420

Cisco® 300-420 Exam (page: 10)
Cisco® Designing Enterprise Networks (ENSLD)
Updated on: 02-Jan-2026

Viewing Page 10 of 59
300-420 PDF 386 Questions

An engineer is designing an enterprise campus network. The LAN infrastructure consists of switches from multiple vendors, and Spanning Tree must be used as a Layer 2 loop prevention mechanism. All configured VLANs must be grouped in two STP instances. Which standards-based Spanning Tree technology supports this design solution?

  1. MSTP
  2. RSTP
  3. Rapid PVST
  4. STP

Answer(s): A



A network engineer must segregate three interconnected campus networks using IS-IS routing. A two-layer hierarchy must be used to support large routing domains and to avoid more specific routes from each campus network being advertised to other campus network routers automatically. Which two actions does the engineer take to accomplish this segregation? (Choose two.)

  1. Designate two IS-IS routers as BDR routers at the edge of each campus, and configure one BDR for all Level 1 routers and one BDR for all Level 2 routers.
  2. Designate two IS-IS routers from each campus to act as Level 1/Level 2 backbone routers at the edge of each campus network.
  3. Assign the same IS-IS NET value for each campus, and configure internal campus routers with Level 1/ Level 2 routing.
  4. Utilize different MTU values for each campus network segment. Level 2 backbone routers must utilize a larger MTU size of 9216.
  5. Assign a unique IS-IS NET value for each campus, and configure internal campus routers with Level 1 routing.

Answer(s): B,E



Which consideration must be taken into account when using the DHCP relay feature in a Cisco SD-Access Architecture?

  1. DHCP-relay must be enabled on fabric edge nodes to provide the correct mapping of DHCP scope to the local anycast gateway.
  2. A DHCP server must be enabled on the border nodes to allow subnets to span multiple fabric edges.
  3. DHCP servers must support Cisco SD-Access extensions to correctly assign IPs to endpoints in an SD- Access fabric with anycast gateway.
  4. DHCP Option-82 must be enabled to map the circuit IP option to the access fabric node where the DHCP discover originated.

Answer(s): A



Which function are fabric intermediate nodes responsible for in an SD-Access Architecture?

  1. mapping EIDs to RLOCs
  2. encapsulating user traffic in a VXLAN header including the SGT
  3. registering new endpoints in the HTDB
  4. transporting IP packets between edge nodes and border nodes

Answer(s): D



How do endpoints inside an SD-Access network reach resources outside the fabric?

  1. a VRF fusion router is used to map resources in one VN to another VN
  2. Fabric borders use VRFs to map VNs to VRFs
  3. SD-Access transit links are used to transport encapsulated traffic from one fabric to another
  4. A fabric edge is used to de-encapsulate VXLAN traffic to normal IP traffic then transported over the outside network

Answer(s): D



Viewing Page 10 of 59



Share your comments for Cisco® 300-420 exam with other users:

Mukesh 7/10/2023 4:14:00 PM

good questions
UNITED KINGDOM


Elie Abou Chrouch 12/11/2023 3:38:00 AM

question 182 - correct answer is d. ethernet frame length is 64 - 1518b. length of user data containing is that frame: 46 - 1500b.
Anonymous


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Anonymous


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UNITED STATES


ethiopia 8/2/2023 2:18:00 AM

seems good..
ETHIOPIA


whoAreWeReally 12/19/2023 8:29:00 PM

took the test last week, i did have about 15 - 20 word for word from this site on the test. (only was able to cram 600 of the questions from this site so maybe more were there i didnt review) had 4 labs, bgp, lacp, vrf with tunnels and actually had to skip a lab due to time. lots of automation syntax questions.
EUROPEAN UNION


vs 9/2/2023 12:19:00 PM

no comments
Anonymous


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nice questions bring out the best in you.
Anonymous


Osman 11/21/2023 2:27:00 PM

really helpful
Anonymous


Edward 9/13/2023 5:27:00 PM

question #50 and question #81 are exactly the same questions, azure site recovery provides________for virtual machines. the first says that it is fault tolerance is the answer and second says disater recovery. from my research, it says it should be disaster recovery. can anybody explain to me why? thank you
CANADA


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UNITED STATES


Anon 10/25/2023 10:48:00 PM

some of the answers seem to be inaccurate. q10 for example shouldnt it be an m custom column?
MALAYSIA


PeterPan 10/18/2023 10:22:00 AM

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Anonymous


CW 7/11/2023 3:19:00 PM

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UNITED STATES


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Anonymous


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ITALY


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Anonymous


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Anonymous


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UNITED STATES


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Anonymous


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CANADA


CW 7/11/2023 2:51:00 PM

a good source for exam preparation
UNITED STATES


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INDIA


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BRAZIL


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Anonymous


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INDIA


Laolu 2/15/2023 11:04:00 PM

aside from pdf the test engine software is helpful. the interface is user-friendly and intuitive, making it easy to navigate and find the questions.
UNITED STATES


Zaynik 9/17/2023 5:36:00 AM

questions and options are correct, but the answers are wrong sometimes. so please check twice or refer some other platform for the right answer
Anonymous


Massam 6/11/2022 5:55:00 PM

90% of questions was there but i failed the exam, i marked the answers as per the guide but looks like they are not accurate , if not i would have passed the exam given that i saw about 45 of 50 questions from dump
Anonymous


Anonymous 12/27/2023 12:47:00 AM

answer to this question "what administrative safeguards should be implemented to protect the collected data while in use by manasa and her product management team? " it should be (c) for the following reasons: this administrative safeguard involves controlling access to collected data by ensuring that only individuals who need the data for their job responsibilities have access to it. this helps minimize the risk of unauthorized access and potential misuse of sensitive information. while other options such as (a) documenting data flows and (b) conducting a privacy impact assessment (pia) are important steps in data protection, implementing a "need to know" access policy directly addresses the issue of protecting data while in use by limiting access to those who require it for legitimate purposes. (d) is not directly related to safeguarding data during use; it focuses on data transfers and location.
INDIA


Japles 5/23/2023 9:46:00 PM

password lockout being the correct answer for question 37 does not make sense. it should be geofencing.
Anonymous


Faritha 8/10/2023 6:00:00 PM

for question 4, the righr answer is :recover automatically from failures
UNITED STATES


Anonymous 9/14/2023 4:27:00 AM

question number 4s answer is 3, option c. i
UNITED STATES