Free Practice Questions for Cisco 300-615 Exam

the drag-and-drop mapping shown in the answer key is the appropriate UCS remediation because the symptom maps to a specific managed object rather than a generic server failure. Cisco UCS abstracts hardware through service profiles and policies; therefore, issues involving UCS must be corrected where UCS Manager programs the adapter, boot target, firmware, management certificate, pool qualification, or fabric interconnect state. The selected answer restores that programming path. The other options may appear plausible, but they do not correct the object that UCS uses to derive operational state. For example, boot failures require the correct vHBA/iSCSI target and LUN policy, discovery issues require the proper physical and management path, and firmware failures require the documented recovery action for the failed FSM stage. The correct validation is to inspect the associated fault, confirm inventory acknowledgment, verify the policy under the service profile or equipment tree, and then recheck boot or connectivity behavior after the FSM completes.

Cisco troubleshooting logic supports Use the same system image as the kickstart image as the required fix. In this question the symptoms point to Save, NVRAM, Use, Load, 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.

The correct answer is Disable and then enable the port. Cisco management and operations troubleshooting focuses on control-plane services such as RBAC, AAA, certificates, SNMP, firmware packages, centralized management registration, fault workflows, and node lifecycle state. This item references Cisco Nexus, so the selected action fixes the management dependency rather than the data-plane symptom. Cisco platforms often allow basic reachability while a higher-level integration still fails because of time synchronization, certificate trust, role mapping, authorization attributes, feature state, or incomplete lifecycle cleanup. The other options either modify forwarding behavior, adjust the wrong credential or role, or bypass the required operational workflow. The engineer should validate the fix by confirming the management session or registration, checking the relevant fault or audit log, and confirming that the user, node, or integration has the expected role and operational status. This is consistent with Cisco DCIT emphasis on operational evidence before and after the change.

Add the DNS server and suffix; Configure domain-name and nameserver under the management VRF resolves the problem because the symptom is specific to the automation subsystem handling Guest Shell, Cisco Nexus, Nexus 9000, Cisco Nexus 9000. Nexus automation failures are frequently caused by a missing EEM event statement, absent event-default action, invalid REST path, incorrect JSON or XML syntax, Guest Shell DNS/resource settings, or a scheduler feature that is not enabled. The selected answer corrects that execution prerequisite. The wrong options may make sense for normal switch forwarding, but they do not repair the automation control path. Cisco documentation treats Guest Shell as a separate Linux environment and EEM as a policy engine that can intercept CLI events; both must be validated from their own operational state. A proper verification is to confirm the policy is registered, run the job or API call again, review the response or syslog output, and ensure that normal CLI behavior is preserved after the automation fires.

Assign an MP-BGP AS number to the fabric; Specify the spine nodes as route reflectors is the valid corrective action because the failure described is a protocol or fabric state problem, not a generic connectivity issue. For BGP, ACI, Cisco troubleshooting expects the engineer to compare both endpoints of the relationship: vPC peers must agree on consistency parameters, HSRP peers must exchange hellos in the same VLAN and version context, OSPF/BGP peers must match the attributes required for stable adjacency, and VXLAN EVPN must advertise the correct host or prefix information. The selected option restores that required state. The other options either operate on the wrong layer, change a value that is not used to form the relationship, or would make the peer relationship less deterministic. A clean validation is to inspect the control-plane table first, then verify the forwarding table, and finally test end-to-end traffic. This is the Cisco-preferred approach because it avoids random changes and confirms that the fabric is forwarding based on correct protocol state.

The correct answer is Enable LLDP on the neighbor switch. Cisco MDS and Nexus SAN troubleshooting is driven by fabric state: the host and target must be in the correct VSAN, must complete FLOGI/PLOGI where applicable, and must be permitted by active zoning, fcdomain, FSPF, NPV/NPIV, or port-security policy. This question focuses on VSAN, FCoE, DCBX, LLDP, so the selected action fixes the dependency that prevents the initiator, target, or inter-switch link from becoming usable. Cisco documentation emphasizes checking VSAN membership, active zonesets, correct port mode, fabric binding, device-alias consistency, and the relevant FC databases before changing unrelated server settings. The distractors either target a different database, use the wrong port role, or would not cause the observed Fibre Channel state to change. After the fix, the engineer should confirm the interface state, FLOGI database, name-server entries, zoneset activation, and successful initiator-to-target reachability with tools such as fcping or fabric show commands.

Shut and no shut the interface Eth0/I is correct because the failure is an operations-plane condition involving Cisco Nexus. In Cisco data center products, management functions depend on more than IP connectivity. AAA servers must return the correct attributes, RBAC must map users to the correct security domain or role, certificates must be trusted and valid for the access method, and firmware or registration workflows must satisfy documented prerequisites such as NTP and required ports. The selected answer corrects that dependency. The distractors are not root-cause fixes because they either target a different subsystem or change a setting that would not influence the observed login, registration, warning, or fault. After the change, validation should include a successful login or registration test, review of the audit/fault record, and confirmation that the expected administrative scope is enforced. That approach matches Cisco operational troubleshooting for DCIT environments.

Connect the Cisco APIC directly to Leaf-101 is the appropriate UCS remediation because the symptom maps to a specific managed object rather than a generic server failure. Cisco UCS abstracts hardware through service profiles and policies; therefore, issues involving ACI, APIC, LLDP, CIMC must be corrected where UCS Manager programs the adapter, boot target, firmware, management certificate, pool qualification, or fabric interconnect state. The selected answer restores that programming path. The other options may appear plausible, but they do not correct the object that UCS uses to derive operational state. For example, boot failures require the correct vHBA/iSCSI target and LUN policy, discovery issues require the proper physical and management path, and firmware failures require the documented recovery action for the failed FSM stage. The correct validation is to inspect the associated fault, confirm inventory acknowledgment, verify the policy under the service profile or equipment tree, and then recheck boot or connectivity behavior after the FSM completes.

Set the Access Mode of Intersight Connector on the UCS to Allow Control is correct because the failure is tied to the UCS managed state of UCS, Cisco IMC, UCS Manager, Intersight. In Cisco UCS, policies are not advisory; they are the source from which fabric interconnects program adapters, boot targets, server identity, firmware, and external integrations. A mismatch between the policy and the actual hardware or upstream storage/network state can cause boot, discovery, KVM, firmware, or connectivity failures. The selected action addresses the object that UCS Manager uses to build the final operational configuration. The distractors either solve a different fault domain or bypass the policy model. A disciplined DCIT validation sequence is to check the fault code, the FSM history, the equipment inventory, the service profile association, and the relevant adapter or boot table. If those states are correct after the change, the UCS component should return to operable service without unnecessary reconfiguration.

Use a browser that supports keys of 2048 bits resolves the issue because the root cause belongs to the management and operations layer around ACI, APIC, certificate. Cisco DCIT troubleshooting requires identifying whether the issue is caused by AAA, RBAC, certificate trust, SNMP access, firmware workflow, license/feature state, or lifecycle registration. The selected option changes the specific item that the platform checks before allowing the operation to complete. The incorrect options either touch data-plane forwarding, change an attribute that is not evaluated for the task, or would create unnecessary disruption. A correct operational fix should be measured by the management result, not just by interface status. The engineer should repeat the login, registration, certificate access, or fault workflow, then verify the audit log and effective permissions. That method confirms the platform is behaving as Cisco expects and that the correction is durable across subsequent operations.