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Cisco 300-615 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Compute Platforms	25%	- Troubleshoot hardware and interoperability 1. Component errors and diagnostics 2. Compatibility issues - Troubleshoot Cisco UCS C-Series 1. VIC adapter operation 2. Local storage 3. CIMC management - Troubleshoot Cisco UCS B-Series 1. Firmware and package updates 2. LAN / SAN connectivity 3. Server discovery and inventory 4. Chassis and fabric interconnects
Topic 2: Storage Network	20%	- Troubleshoot storage services 1. VSAN merge 2. Load balancing - Troubleshoot FCoE and Unified Fabric 1. Virtual Fibre Channel interfaces 2. FIP and DCB - Troubleshoot Fibre Channel 1. NPV / NPIV 2. FSPF routing 3. VSAN and zoning
Topic 3: Management and Operations	15%	- Monitor and troubleshoot performance 1. Traffic analysis 2. Logging and diagnostics - Troubleshoot management tools 1. DCNM 2. UCS Central
Topic 4: Automation and Programmability	15%	- Troubleshoot orchestration and integration 1. NX-API / REST API 2. UCS Director - Troubleshoot automation tools 1. API connectivity 2. Python, Ansible
Topic 5: Network	25%	- Troubleshoot ACI infrastructure 1. Contract and policy enforcement 2. APIC cluster 3. Fabric discovery 4. Endpoint learning - Troubleshoot overlay protocols 1. VXLAN EVPN 2. OTV - Troubleshoot routing protocols 1. OSPFv2, OSPFv3 2. EIGRP 3. MP-BGP - Troubleshoot switching protocols 1. vPC 2. VLANs / PVLANs 3. RSTP+ 4. LACP - Troubleshoot network security 1. ACL, port security 2. CoPP

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Cisco Troubleshooting Cisco Data Center Infrastructure Sample Questions (Q68-Q73):

NEW QUESTION # 68
Refer to the exhibit. Cisco UCS Manager reports that the number of disks assigned to a server exceeds the number of available disk slots. What could cause this issue?

A. The fault detection tests on the disk drive failed
B. The Cisco UCS B-Series Blade Server is connected incorrectly to the fabric interconnects
C. Communication between the fabric interconnects failed
D. Communication between Cisco UCS Manager and the server failed

Answer: D

Explanation:
https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/ts/guide/UCSTroubleshooting/UCSTroubleshooting_chapter_0100.html

NEW QUESTION # 69
Refer to the exhibit.

An OSPF adjacency between Router-A and Router-B cannot reach the FULL state. Which action resolves the issue?

A. Adjust the MTU on Router-A to 1600.
B. Set the OSPF media type to point-to-point.
C. Disable the check of the MTU value.
D. Adjust the MTU on Router-B to 1604.

Answer: C

Explanation:
The correct remediation is Disable the check of the MTU value. In Cisco data center troubleshooting, the first priority is to isolate whether the failure is caused by the underlay, overlay control plane, first-hop gateway behavior, or a consistency parameter. This item is centered on OSPF, so the selected action targets the condition that prevents normal forwarding rather than masking the symptom. Cisco Nexus and ACI guidance treats vPC, VXLAN EVPN, OTV, OSPF, BGP, HSRP, and LACP issues as state-dependent technologies: a neighbor, peer, VLAN, VNI, multicast group, timer, MTU, or policy mismatch can leave the protocol partially operational while traffic is still dropped. The rejected alternatives either change unrelated attributes, introduce a new inconsistency, or affect only a secondary behavior. The operational check after applying the fix should be to confirm adjacency or peer state, validate the relevant route/MAC/endpoint table, and test traffic in the affected VLAN or VRF. This aligns with Cisco DCIT network troubleshooting methodology for isolating control-plane state before changing data-plane policy.

NEW QUESTION # 70
Refer to the exhibit.

A network engineer is implementing a pair of Cisco Nexus 9000 Series Switches. During the OSPF configuration, the engineer discovers unstable routing in the network. The investigation shows flapping routes after the new switches were introduced. Which set of actions resolves the issue?

A. Configure a new IP address on the Ethernet interface toward the OSPF neighbor. Clear the OSPF process.
B. Configure a new IP address on the Ethernet interface toward the OSPF neighbor. Clear the OSPF neighbor.
C. Configure a new IP address on the Loopback interface for the OSPF process. Clear the OSPF process
D. Configure a new OSPF priority on the Ethernet interface toward the OSPF neighbor. Clear the OSPF neighbor.

Answer: B

NEW QUESTION # 71
Refer to the exhibit.

A switch is being downgraded to an earlier release because of a problem with the current release. After the switch is downgraded, it can no longer forward traffic. Which action resolves the issue?

A. Roll back to the original image.
B. Shut and no shut the interfaces to the FEX.
C. Enable ISSD after the downgrade is complete.
D. Reload the switch.

Answer: A

Explanation:
The answer is Roll back to the original image because Cisco Nexus and ACI forwarding depends on exact agreement between the devices participating in the feature. The scenario references FEX; those technologies fail in predictable ways when required parameters do not match or when the required control-plane advertisement is absent. In DCIT troubleshooting, the engineer should identify the failed dependency, correct that dependency, and then verify the operational table that proves the fix. For example, vPC and EVPN checks focus on consistency, VNI/VRF bindings, peer-gateway behavior, and host-route advertisement; routing checks focus on neighbor state, MTU, timers, authentication, next-hop, and route preference. The selected answer addresses the dependency that blocks forwarding. The distractors are plausible because they touch related features, but they do not resolve the specific failure condition. Post-change validation should include protocol state, learned endpoint or route entries, and a traffic test across the affected path.

NEW QUESTION # 72
Refer to the exhibit.

A PC belongs to VLAN 68 The user experiences a large amount of packet loss when communicating with hosts that are outside of VLAN 68. Which action resolves the problem?

A. Configure ip arp synchronization on both switches.
B. Remove the HSRP configuration
C. Replace HSRP with GLBP
D. Enable the peer-gateway feature

Answer: D

Explanation:
I assume that the PC is sending traffic with destination MAC of Nexus physical interfaces. If more snap shots about this question are available, please share.

NEW QUESTION # 73
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