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Download Cisco : 642-980 Questions & Answers as PDF & Test Software

Last Updated: Sep 02, 2026

No. of Questions: 148 Questions & Answers with Testing Engine

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Go To 642-980 Questions

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Our Online Test Engine & Self Test Software of TestSimulate 642-980 actual study materials can simulate the exam scene so that you will have a good command of writing speed and time. Then multiple practices make you perfect while in the real Cisco 642-980 exam. The package practice version will not only provide you high-quality 642-980 exam preparation materials but also various studying ways.

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Cisco 642-980 Practice Q&A's

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Certification blueprints shift, and stale study material is worse than none at all. TestSimulate keeps the 642-980 question set aligned with the current Cisco Troubleshooting Cisco Data Center Unified Fabric (DCUFT) exam, and every purchase in 2026 includes 365 days of free updates.

Cisco 642-980 Exam Overview:

Certification Vendor:Cisco
Exam Name:Troubleshooting Cisco Data Center Unified Fabric (DCUFT)
Exam Number:642-980
Related Certifications:CCNP Data Center
Cisco Data Center specialization certifications
Certificate Validity Period:3 years (certification validity depends on Cisco policy)
Available Languages:English
Exam Format:Multiple answer, Simulation / troubleshooting scenarios, Multiple choice
Exam Duration:90-120
Exam Price:$300 USD (may vary by region)
Real Exam Qty:55-65
Recommended Training:Cisco Data Center Training & Learning Network
Exam Registration:Cisco Certification Registration (Pearson VUE)
Sample Questions:Cisco 642-980 Sample Questions
Exam Way:Onsite or authorized testing center (Cisco Pearson VUE)
Pre Condition:Recommended experience with Cisco Nexus switches and Data Center networking; CCNA/CCNP-level knowledge is beneficial.
Official Syllabus URL:https://www.cisco.com

Cisco 642-980 Exam Syllabus Topics:

SectionObjectives
Topic 1: Data Center Network Services- Traffic optimization features
  • 1. ECMP and load balancing behavior
    • 2. QoS in data center networks
      - High availability mechanisms
      • 1. Failover scenarios in Nexus environments
        • 2. Redundancy design principles
          Topic 2: Cisco Data Center Unified Fabric Architecture- Unified Fabric concepts
          • 1. Converged Ethernet (LAN/SAN convergence)
            • 2. Fibre Channel over Ethernet (FCoE) overview
              - NX-OS architecture basics
              • 1. Device roles in Nexus switching environments
                • 2. Control plane and data plane separation
                  Topic 3: Switching and Data Center Connectivity- Layer 2 switching in data center
                  • 1. Spanning Tree Protocol in DC environments
                    • 2. VLANs and trunking behavior
                      - Advanced switching features
                      • 1. Port channels and EtherChannel issues
                        • 2. vPC (Virtual Port Channel) troubleshooting
                          Topic 4: Troubleshooting Methodologies- Systematic troubleshooting approach
                          • 1. Layered OSI model diagnostics
                            • 2. NX-OS diagnostic commands
                              - Common failure scenarios
                              • 1. FCoE connectivity failures
                                • 2. vPC misconfiguration issues
                                  Topic 5: Storage Networking in Unified Fabric- Storage troubleshooting
                                  • 1. Zoning and device visibility problems
                                    • 2. FC switching and login issues
                                      - FCoE and SAN integration
                                      • 1. VSAN configuration and isolation issues
                                        • 2. FCoE initialization protocol (FIP)

                                          642-980 Certification Exam — Your Questions, Answered

                                          The 642-980 exam is the official Cisco exam behind Cisco Troubleshooting Cisco Data Center Unified Fabric (DCUFT) — passing it earns you the Cisco Data Center Unified Fabric Troubleshooting certification, a credential positioned at the Professional level. It is built for candidates who want to validate the skills measured by Cisco Troubleshooting Cisco Data Center Unified Fabric (DCUFT). Depending on your track, the exam is also linked to the CCNP Data Center and Cisco Data Center specialization certifications certifications, so one pass can move you toward more than one Cisco credential.

                                          The 642-980 exam presents 55-65 questions to be completed within 90-120. That pace leaves little room for second-guessing: read each question carefully on the first pass, flag the ones you want to revisit, and keep moving instead of stalling on a single item. Before exam day, run at least one full timed session in the TestSimulate desktop or online test engine with a comparable question load — a steady rhythm under the clock is a trainable skill, and it is often what separates a pass from a near miss.

                                          Recommended experience with Cisco Nexus switches and Data Center networking; CCNA/CCNP-level knowledge is beneficial. Because Cisco revises its certification programs from time to time, treat this as a starting point rather than the final word. Confirm the current eligibility requirements on the official Cisco exam page before you register.

                                          Registration for the 642-980 exam is handled through the official channels below:

                                          Delivery method: Onsite or authorized testing center (Cisco Pearson VUE) — pick the option that suits you best when booking your slot.

                                          Cisco points Cisco Troubleshooting Cisco Data Center Unified Fabric (DCUFT) candidates toward the following official courses:

                                          Official courses build the foundation; pairing them with the 148 642-980 practice questions from TestSimulate turns that knowledge into exam-day readiness.

                                          Yes. A free PDF demo of the 642-980 practice questions is available, so you can check the question style and answer quality before spending anything. Every purchase also includes 365 days of free updates — whenever Cisco adjusts the Cisco Troubleshooting Cisco Data Center Unified Fabric (DCUFT) blueprint, your material is refreshed at no cost during that period. After the first year, you can extend the update service at a 50% discount from your member zone.

                                          TestSimulate backs your purchase with a 100% Money Back Guarantee. If you take the corresponding exam within 60 days of purchase and do not pass, you can claim a full refund by submitting a scanned copy of your exam enrollment slip together with the official Score Report PDF within 2 days of your exam date; approved claims are processed within 7 days. The guarantee applies only to the exam matching your purchase, the candidate name must match the payer name, and it does not cover attempts taken within 3 days of purchase, candidates who downloaded the material but never sat the exam, expired orders, or free materials. If you would rather keep preparing, you can exchange the product for two free exam preparation packages of equal value and keep the update service on your original purchase.

                                          Delivery is instant: your download is available right after payment, and a copy is emailed to you within one minute. If nothing arrives within 2 hours, check your spam folder and contact our support team. There is no limit on the number of computers you can install the software on.

                                          The Cisco Troubleshooting Cisco Data Center Unified Fabric (DCUFT) syllabus is organized into 5 domains. Among the headline areas are Cisco Data Center Unified Fabric Architecture, Storage Networking in Unified Fabric, Switching and Data Center Connectivity. Rather than copying every subtopic here, we keep the complete, current outline in the Exam Topics section above — work through it domain by domain with the TestSimulate 642-980 practice questions so nothing on the blueprint catches you off guard.

                                          Cisco Troubleshooting Cisco Data Center Unified Fabric (DCUFT) Sample Questions:

                                          Question 1

                                          There is an ARP storm in VDC 1. Some users on VDC 2 notice that ARP is not resolving for their gateway on the Cisco Nexus core. What is the cause?

                                          A. The ARP CoPP class committed information rate is exceeded, resulting in ARP loss in all VDCs.
                                          B. The ARP traffic in VDC 1 is copied to the host ports in VDC 2, causing overutilization and output discards.
                                          C. Because the ARP process in the default VDC (VDC 1) is responsible for processing
                                          ARP traffic for all VDCs, VDC 2 will be affected.
                                          D. The administrator has not correctly configured the ARP CoPP class in VDC 2.


                                          Question 2

                                          When using a Cisco Nexus 5500 and Cisco Nexus 7000 Series Switch, how can a port channel interface be configured?

                                          A. Layer 3 interface in admin VDC only
                                          B. Layer 3 interface
                                          C. Layer 3 interface in non-admin VDC only
                                          D. Layer 3 interface in VDC 1 only


                                          Question 3

                                          You have enabled configuration synchronization between two Cisco Nexus 5548UP
                                          Switches. You create a port channel on switch 1 and determine that it was not synchronized with its peer. The peer switch can be pinged on the management VRF. When you check your peer status, you receive a "peer not reachable" message in the command output. What is the explanation for this?

                                          A. CDP is disabled.
                                          B. CFSoIP is disabled.
                                          C. Multicast routing is enabled.
                                          D. UDLD is disabled.
                                          E. An LACP mismatch exists on the peer interfaces.


                                          Question 4

                                          When configuring LLDP on Cisco Nexus 5548 Switch, what is the purpose of LLDP hold time global configuration command?

                                          A. LLDP holdtime option is to set the length of time in milliseconds to wait before performing LLDP initialization on any interface.
                                          B. LLDP holdtime option is to set the length of time in seconds that a device should save
                                          LLDP information received before discarding it.
                                          C. LLDP holdtime option is to set the length of time in milliseconds that a device should save LLDP information received before discarding it.
                                          D. LLDP holdtime option is to set the length of time in seconds to wait before performing
                                          LLDP initialization on any interface.


                                          Question 5

                                          If no traffic was ever sent across the overlay, what will the show mac address-table command on the OTV VDC indicate?

                                          A. the system IDs of all the local and remote edge devices in the overlay
                                          B. the MAC address of the local OTV join interface
                                          C. all the MAC addresses learned on the extended VLAN
                                          D. the system IDs of all the local OTV edge devices
                                          E. invalid command


                                          Solutions:

                                          Question 1
                                          Answer: A
                                          Question 2
                                          Answer: B
                                          Question 3
                                          Answer: B
                                          Question 4
                                          Answer: B
                                          Question 5
                                          Answer: B

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