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Cisco 642-035 Exam Overview:

Certification Vendor:Cisco
Exam Name:Troubleshooting Cisco Data Center Unified Computing (DCUCT)
Exam Number:642-035
Passing Score:Variable (approx. 750-850 / 1000 scale)
Exam Price:$300 USD
Related Certifications:CCIE Data Center
Cisco Certified Specialist - Data Center Unified Computing Troubleshooting
Exam Duration:90 minutes
Exam Format:Multiple Choice Multiple Answer, Multiple Choice Single Answer, Drag and Drop, Simulation
Certificate Validity Period:3 years
Real Exam Qty:65-75
Available Languages:English
Recommended Training:Troubleshooting Cisco Data Center Unified Computing (DCUCT v5.0)
Exam Registration:Cisco Official Exam Page
Pearson VUE Registration
Sample Questions: DOWNLOAD DEMO
Exam Way:Proctored online or at authorized Pearson VUE test centers
Pre Condition:Recommended: Basic knowledge of Cisco UCS architecture, 1-3 years of hands-on experience with UCS deployments; no mandatory prerequisite exams
Official Syllabus URL:https://www.cisco.com/c/en/us/training-events/training-certifications/exams/current-list/dcuct.html

Cisco 642-035 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: UCS B-Series Chassis and Fabric Interconnect Troubleshooting22%- Chassis and IOM communication
  • 1. IOM uplink and communication failures
    • 2. Chassis discovery and connectivity problems
      - Fabric infrastructure troubleshooting
      • 1. Packet flow analysis from server to fabric
        • 2. Fabric Interconnect cluster and HA issues
          - Service profile and resource assignment
          • 1. Service profile association failures
            • 2. Pool and vNIC/vHBA allocation issues
              Topic 2: Troubleshooting UCS Architecture and System Internals24%- Boot and initialization issues
              • 1. Operating system boot failures
                • 2. Troubleshooting blade server boot problems
                  - Hardware and management troubleshooting
                  • 1. Detecting defective hardware via CLI/GUI
                    • 2. Resolving management IP and KVM conflicts
                      - Diagnostic data collection and analysis
                      • 1. Using FSM (Finite State Machine) for issue identification
                        • 2. Collecting logs, dumps, and core files
                          Topic 3: Network and Storage Connectivity Troubleshooting20%- Virtualization integration
                          • 1. VMware/Hyper-V connectivity issues
                            • 2. vNIC/vHBA path selection failures
                              - Driver and firmware compatibility
                              • 1. Adapter firmware mismatches
                                • 2. OS driver conflicts and updates
                                  - LAN and SAN connectivity
                                  • 1. VSAN and VLAN configuration issues
                                    • 2. Ethernet and FCoE connectivity problems
                                      Topic 4: UCS C-Series Standalone Troubleshooting34%- Power and thermal management
                                      • 1. Thermal threshold and cooling issues
                                        • 2. Power consumption and policy configuration
                                          - CIMC administration and troubleshooting
                                          • 1. Using CIMC GUI and CLI for diagnostics
                                            • 2. Password recovery for CIMC
                                              • 3. Firmware and BIOS update procedures
                                                - Hardware component troubleshooting
                                                • 1. LOM and adapter connectivity
                                                  • 2. Memory and processor issues
                                                    • 3. Local disk and RAID controller problems

                                                      Cisco Troubleshooting Cisco Data Center Unified Computing Exam: Three Advantages, One Purchase

                                                      Three versions of the same study materials: a printable, expert-prepared PDF with free demo download and instant access; a Desktop Test Engine for Windows with customizable simulation and timed modes that works offline; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS with test history and performance review. All 168 practice questions are identical across versions. Every purchase includes 365 days of free updates, a 50% renewal discount afterward, and unlimited computer installations.

                                                      The Cisco Troubleshooting Cisco Data Center Unified Computing exam contains 65-75 to complete within 90 minutes. Timed simulation in the NewPassLeader Desktop Test Engine teaches that rhythm before exam day does.

                                                      The official Cisco Troubleshooting Cisco Data Center Unified Computing outline defines 4 domains. The leading three are Network and Storage Connectivity Troubleshooting (20%), UCS C-Series Standalone Troubleshooting (34%), and Troubleshooting UCS Architecture and System Internals (24%). The full list is in the topics section above, and NewPassLeader's 168 practice questions cover each one.

                                                      Recommended: Basic knowledge of Cisco UCS architecture, 1-3 years of hands-on experience with UCS deployments; no mandatory prerequisite exams Since requirements change over time, confirm the latest on the official Cisco exam page before scheduling.

                                                      The Cisco Troubleshooting Cisco Data Center Unified Computing exam requires Variable (approx. 750-850 / 1000 scale) to pass, and registration costs $300 USD. A failed attempt means paying the same fee again — a readiness check with the NewPassLeader engines before booking is the cheaper option.

                                                      The 642-035 exam is a Cisco certification exam validating the Cisco Troubleshooting Cisco Data Center Unified Computing syllabus shown above. It belongs to these credential paths: CCIE Data Center, Cisco Certified Specialist - Data Center Unified Computing Troubleshooting. Candidates in 2026 start with NewPassLeader's 168 practice questions, available as a printable PDF, a Windows Desktop Test Engine, and an Online Test Engine — three versions of the same materials.

                                                      Cisco recommends these training resources for the Cisco Troubleshooting Cisco Data Center Unified Computing exam:

                                                      Follow the training with steady self-testing — the 168 practice questions from NewPassLeader help you apply theory and fill any gaps the training leaves.

                                                      NewPassLeader issues a full refund if you take the Cisco Troubleshooting Cisco Data Center Unified Computing exam within 60 days of purchase and do not pass. The policy does not apply if the exam is taken within 3 days of purchase, if the exam was never actually taken, or to free materials or expired orders, and the candidate name must match the payer name. Submit a scan of your enrollment slip and the official Score Report PDF within 2 days of the exam; claims are processed within 7 days. Alternatively, exchange for two free exam products of equal value and keep your original update service. Orders arrive by email within 1 minute — contact support if nothing arrives within 2 hours.

                                                      Proctored online or at authorized Pearson VUE test centers Register for the Cisco Troubleshooting Cisco Data Center Unified Computing exam through these official channels:

                                                      After booking, NewPassLeader delivers your practice questions within 1 minute — preparation starts the same day.

                                                      Cisco Troubleshooting Cisco Data Center Unified Computing Sample Questions:

                                                      A customer calls in a trouble ticket and explains that after a power failure, the UPS was discovered to be defective and the Cisco UCS C210 M2 server running Windows 2008 R2 went down without proper shutdown. After restarting the server, you discover the RAID 5 array rebuilding parity. Which write-cache settings on the LSI MegaRAID 9260-4i controller explain this symptom?

                                                      • A. write through
                                                      • B. no write cache
                                                      • C. write back with BBU
                                                      • D. no hot spare
                                                      • E. write back
                                                      Reveal Solution  Discussion  0

                                                      Correct Answer: E  🗳️

                                                      On a Cisco UCS C-Series Rack-Mount Server, which state of the DIMM fault LED indicates a faulty DIMM module?

                                                      • A. flashing red
                                                      • B. flashing amber
                                                      • C. solid amber
                                                      • D. flashing blue
                                                      • E. OFF
                                                      Reveal Solution  Discussion  0

                                                      Correct Answer: C  🗳️

                                                      Which feature on the Cisco IMC GUI allows you to view the last boot post operation?

                                                      • A. Firmware Management tab
                                                      • B. Bootstrap Process Recording
                                                      • C. Crash Recording
                                                      • D. Trusted Platform Module
                                                      Reveal Solution  Discussion  0

                                                      Correct Answer: B  🗳️

                                                      Refer to Exhibit 5.




                                                      Which of the following is true regarding password recovery for the Cisco IMC GUI interface?

                                                      • A. Enter the Cisco IMC BIOS to reset the GUI password
                                                      • B. From the KVM Console, press F12 during POST to reset the credentials to admin/password
                                                      • C. Refer to the model-specific Cisco UCS C-Series Hardware guide to learn the location of the recovery jumper on the server motherboard
                                                      • D. Type RECOVER into the Username field, and then type SYSTEM in the Password field to enter recovery mode
                                                      Reveal Solution  Discussion  0

                                                      Correct Answer: A  🗳️

                                                      Which two statements about the Cisco UCS FSM are true? (Choose two.)

                                                      • A. Cisco UCS has two FSMs.
                                                      • B. The FSM is run on the DME.
                                                      • C. The FSM is used to observe the physical, logical, and virtual components on the Cisco UCS.
                                                      • D. The FSM is a process to upgrade the firmware.
                                                      • E. The FSM is a workflow model with a finite number of stages.
                                                      Reveal Solution  Discussion  0

                                                      Correct Answer: B,E  🗳️

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