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Cisco 300-615 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Multiprotocol Troubleshooting15%- Troubleshoot Layer 3 connectivity
  • 1. Multicast (PIM, IGMP)
  • 2. QoS and multicast traffic
- Troubleshoot management plane
  • 1. SPAN, ERSPAN
  • 2. SNMP, Syslog, and NetFlow
Topic 2: Security Troubleshooting10%- Troubleshoot network segmentation
  • 1. VLANs and VRFs
  • 2. Cisco ACI tenant isolation
- Troubleshoot access control
  • 1. RBAC and user roles
  • 2. AAA authentication
Topic 3: Network Troubleshooting20%- Troubleshoot overlay tunneling
  • 1. VXLAN
  • 2. NVGRE
- Troubleshoot routing and switching technologies
  • 1. First-Hop Redundancy Protocols (HSRP, VRRP)
  • 2. Routing protocols (OSPF, BGP, EIGRP)
  • 3. STP, RSTP, and MSTP
  • 4. VPC, vPC Lite
Topic 4: Storage Network Troubleshooting15%- Troubleshoot NAS
  • 1. NFS troubleshooting
  • 2. SMB troubleshooting
- Troubleshoot Fibre Channel
  • 1. NPV and NPIV
  • 2. Fibre Channel fabric operations
  • 3. FLOGI, NS, RSCN
  • 4. VSANs and zones
- Troubleshoot FCoE
  • 1. DCB QoS and priority groups
  • 2. FCoE Initialization Protocol
Topic 5: Compute Platform Troubleshooting20%- Troubleshoot Cisco NX-OS
  • 1. Licensing issues
  • 2. VDC operations
  • 3. Feature troubleshooting
- Troubleshoot Cisco UCS Manager
  • 1. Service profiles and templates
  • 2. UCS Manager clusters
  • 3. Identities and pools
- Troubleshoot Cisco UCS Director
  • 1. Virtual infrastructure workflows
  • 2. Physical infrastructure workflows
Topic 6: Automation Troubleshooting20%- Troubleshoot Cisco ACI
  • 1. APIC fabric discovery
  • 2. Contract policies
  • 3. Faults and health scores
  • 4. Tenant configuration
- Troubleshoot programmable interfaces
  • 1. Python scripting
  • 2. REST API operations
  • 3. NX-API

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Cisco Troubleshooting Cisco Data Center Infrastructure Sample Questions (Q11-Q16):

NEW QUESTION # 11
Refer to the exhibit.

When an engineer inserts 8-Gb FC SFP port 15 on a Cisco UCS Fabric Interconnect, the port fails. What is a possible cause of the issue?

Answer: B


NEW QUESTION # 12
"A network engineer troubleshoots an issue at a Cisco data center environment with these conditions:
* The data center has Cisco Nexus 9000 Series Switches running the vPC setup.
* The gateway of the servers is an HSRP IP address between the VLAN interfaces configured on both Cisco Nexus switches.
* Some of the client application servers are implementing fast-path forwarding for the return traffic.
* Those servers are sending the return traffic to the VLAN interface MAC address instead of the HSRP MAC address.
The network engineer discovers that some traffic is dropped because it passes the vPC peer link to be forwarded out the vPC interface. What must be configured on the vPC switches to resolve the issue?

Answer: D


NEW QUESTION # 13
Refer to the exhibit. A network engineer upgrades the firmware of a Cisco Fabric Interconnect from boot flash. During the process, the fabric interconnect reboots and displays the message shown in the exhibit. Which action resolves the issue?

Answer: C


NEW QUESTION # 14
Refer to the exhibit.

The HSRP instance on both switches is showing as active. Which action resolves the issue?

Answer: C

Explanation:
Cisco troubleshooting logic supports Allow VLAN 100 between the switches as the required fix. In this question the symptoms point to HSRP, and the defect is best handled by correcting the exact control-plane or consistency condition. Nexus platforms can show interfaces or peers as configured while still refusing to forward traffic if a vPC Type-1 parameter, VLAN allowance, MTU, HSRP version, EVPN route, or routing attribute is wrong. Cisco methodology is to avoid broad resets unless the state machine is stuck; instead, correct the mismatched parameter and verify that the resulting operational state becomes stable. The other choices do not remove the root cause, or they modify a setting that is not used by the failing protocol exchange. After the change, the engineer should review the peer status, route or MAC table, and counters for drops or inconsistency messages. That sequence proves that the network fabric is fixed, not merely restarted.


NEW QUESTION # 15
Refer to the exhibit.

An engineer troubleshoots the HSRP configuration and notes that the remote end uses HSRP version 1. The engineer sets the local HSRP to version 1, but the problem continues. Which action resolves the issue?

Answer: D

Explanation:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipapp_fhrp/configuration/xe-16/fhp-xe-16-book/fhp-hsrp-v2.pdf


NEW QUESTION # 16
......

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