300-615 DCIT Troubleshooting Cisco Data Center Infrastructure
Update：2026年6月3日
Questions and Answers: 167 Q&A
1.
A network engineer experiences the error “DDR3_P1_B1_ECC” when upgrading Cisco UCS firmware. Which action resolves the issue?
2.
Cisco Unified Computing System Manager raises a critical error message that indicates that the system has overlapping Ethernet and FCoE VLANs. All of the Ethernet traffic on the overlapping VLANs drops. Which action resolves the issue?
3.
A network administrator must delete a feature group from a Cisco Nexus 5000 Series Switch. Which action resolves the issue?
4.
An attempt to use a global vNIC redundancy template pair results in a service profile that fails to apply. Which action resolves the issues?
5.
An engineer must save the running configuration to startup-config and generate a syslog message indicating that the configuration was modified, but an error was received. Which action resolves the issue?
6.
An engineer is configuring boot from iSCSI on a Cisco UCS B-Series Blade Server, but the LUN fails to mount. Which action resolves the issue?
7.
What does this adapter output indicate?
adapter 1/6/1 (fls): 2# lunlist 9
vnic: 9 lifid: 6
- FLOGI State : flogi est (fc_id Oxac0e04)
- PLOGI Sessions
- WWNN 50:0a:09:83:8d:53:43:44 WWPN 50:0a:09:83:8d:53:43:44 fc_id 0x000000
- LUN's configured (SCSI Type, Version, Vendor, Serial No.)
- LUN ID: Ox0000000000000000 access failure
-REPORT LUNs Query Response
- Nameserver Query Response
-WWPN: 54:b1:6a:94:64:3e:73:44
8.
The external routes fail to propagate to leaf switches in Cisco ACI fabric Which two actions resolve the issue? (Choose two.)
9.
A network administrator attempts to install an application in the Cisco NX-OS Guest shell and receives an error that there is not enough space on the disk. Which command must the administrator run to increase the disk space available in the Guest shell?
10.
Interface fc1/5 is offline. Which action should be taken to troubleshoot the issue?
11.
The initiator that has FC ID 0x970102 fails to communicate with the target that has FC ID 0x970200. What action resolves the issue?
12.
An engineer is troubleshooting why user1, user2, and user3 from group STORAGEADMINISTRATOR in Microsoft Active Directory cannot log in to the Cisco MDS SSH CLI. Which action resolves the issue?
13.
A Fibre Channel interface on a Cisco Nexus 5000 Series Switch receives bit errors, and the switch disables the interface. A temporary workaround must be implemented before the root cause is identified. Which action does an engineer take to prevent this issue from reoccurring?
14.
A new Cisco Nexus 5548 Switch connects to a network. SAN switching is configured on the switch. The switch fc2/10 NP uplink is shown in the exhibit. Which action ensures that fc2/10 is in an up state?
15.
An engineer is investigating a role mapping issue on a switch. The users report that they cannot view the IP addresses under the tenant “corp”. Which action resolves the issue?
16.
An engineer is troubleshooting a failed DCBX exchange between a server and a Cisco Nexus switch. Which action allows DCBX to successfully negotiate?
17.
The scheduler job fails to run. Which action resolves the issue?
18.
A network engineer is troubleshooting a Cisco Nexus 5000 Series Switch. The interface between the server and the switch is nonoperational and is expected to operate at 10 Gbps. The drain rate of the interface is 3 Mbps. Which action resolves the issue?
19.
A web browser displays a “not secure” warning message when accessing the web interface of Cisco UCS Manager. Which action resolves the issue?
20.
An engineer is implementing, Fibre Channel (FC) switching on a Cisco 9000 Series Switch, but the procedure fails with the message "FC traffic is not being routed through the fabric.". Which action resolves the issue?
21.
The HSRP instance on both switches is showing as active. Which action resolves the issue?
22.
An engineer removes a VMM domain from an endpoint group called EPG-1, but the distributed port group fails to be deleted. Which action must be taken to resolve the issue?
23.
After an unexpected reload of the Cisco Nexus 9000 Series Switch, the network administrator noticed that one of the Software Maintenance Upgrades (SMU) images is inactive. The engineer must ensure that the package remains active after the switch is reloaded in the future. Which action accomplishes this goal?
24.
An Engineer cannot log in to the Cisco IMC page of the Cisco UCS C220 server. Which action resolve the issue?
25.
The EEM applet must generate a syslog message whena BGP adjacency faps. This message must be displayed to the console of the switch. However, when a BGP adjacency failure is simulated, no syslog message is displayed. Which action resolves the issue?
26.
The connection between a Cisco Nexus 5548UP switch and a Cisco MDS switch fails to initialize. What is the cause of the issue?
27.
The FCoE traffic fails to traverse the vfc2 interface. The VSAN 102 is configured for vfc2. Which action resolves the issue?
28.
During implementation of a Cisco UCS C-Series Server, an engineer receives the status that is shown in the exhibit. Which action resolves the issue.
29.
Drag and drop the commands from the left onto the correct categories on the right.
30.
A system administrator connects a Cisco Nexus 2248PQ FEX to a fabric interconnect to expand the ports that are available for connecting Cisco UCS C-Series Rack Servers. In Cisco UCS Manager, the administrator does not see the servers connected to this FEX. Which action should be taken to resolve the issue?
31.
A network engineer has connected the Nexus switch management port to the Internet using DHCP to allow the Guest shell running on the switch to download Python packages. The engineer can ping google.com successfully from the Nexus switch, but the Guest shell failed to download any Python packages. Which action resolves the problem?
32.
The VXL AN fabric is deployed with this configuration:
The VL AN 50 interface has no IP address on VTEP1 and VTEP4
The VLAN 100 interface has no IP address on VTEP2 and VTEP3.
nve1 interface is configured on all VTEPs.
Host A experiences timeouts when attempting to ping host B. Which set of actions allows host A to
reach host B7
33.
An engineer discovered a VFC interface in a down state on a Cisco Nexus Switch. Which action resolves the problem?
34.
A Cisco UCS B-Series Blade Server is configured to boot from a shared storage via an iSCSI network. When a service profile is associated with the blade, the blade fails to attach the LUN.Which action resolves the issue?
35.
A firmware upgrade on a fabric interconnect fails. A bootflash contains a valid image. Drag and drop the recovery steps from the left onto the correct order on the right
36.
A network engineer notices a sudden interruption to the HSRP adjacency between the switches. The packet loss is reported on the servers for which the default gateway is set as the virtual IP of the HSRP. AII servers on the VL AN can exchange ping messages. Which configuration set must be applied on the HSRP peers to resolve the adjacency issue?
37.
An engineer troubleshoots switch N5K1, which fails to receive traffic from the file server Which set of actions resolves this problem?
38.
A Cisco uCs C-Series Server powers off due to a power outage. The server should turn on when the power is restored with a fixed delay of 3 minutes. However, it remained powered off for more than 3 minutes after the engineer powered it back online. Which two actions resolve the issue
39.
An engineer configures the server port on a Cisco Nexus 5000 Series Switch. The switch connects to an NPV edge switch port. The server fails to send the FC traffic to the fabric. Which action resolves the issue?
40.
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?
41.
The Cisco Nexus switch is connected to a peer switch that is not running Cisco NX-OS. The switches are connected using port channel and are experiencing packet loss. Which action should be performed on the Cisco Nexus switch ports to resolve this issue?
42.
A network engineer needs to capture traffic from the VMs that utilize the IOM host interface Eth1/1/23 of a Cisco UCS B-Series chassis. A traffic analyzer is used to get traffic captured from the Eth1/4 interface of the subordinate fabric interconnect. The network engineer notices that traffic is not captured on the traffic analyzer. Which action resolves the issue?
43.
The HSRP configuration in the exhibit fails to function. Which action resolves this issue?
44.
The EEM script is applied in the default VDC to collect the outputs during high CPU utilization on the Cisco Nexus 7000 Series Switch for all VDCs. Which configuration set must be added to the script to fix the issue?
45.
A functioning trunk port Ethernet1/48 exists between two identical Cisco Nexus 5000 Series Switches. The interfaces on the switches support the MACsec feature and are configured identically. To enable manual MACsec, an engineer adds the configuration shown in the exhibit to both sides of the trunk. The trunk port stops functioning. Which action should be taken to resolve the issue?
N5K-1#show running-config aaa all
!
version 7.0(2)N2(1)
logging level aaa 5
aaa authentication login default group radius
aaa authentication login console group radius
aaa authorization ssh-publickey default local
aaa authorization ssh-certificate default local
aaa accounting default localaaa user default-role
aaa authentication login default fallback error local
aaa authentication login console fallback error local
aaa authentication login error-enableno
aaa authentication login mschap enableno
aaa authentication login mscapv2 enableno
aaa authentication login chap enable
46.
A network engineer is implementing an RBAC on the Cisco Nexus 9000 Series Switch. The role called Host A fails to clear LACP counters on the port channel 20. Which configuration resolves the issue?
Switch#configure terminal
switch(config)#role name HostA
switch(config-role)#rule 3 deny cornand clear users
switch(config-role)#rule 2cpermit"clear lacp counters interface port-channel 20s
witch(config-role)#rule permit read feature router-bgp
switch(config-role)#rule deny read-write L3
switch(config-role)#exit
47.
A Cisco UCS Fabric Interconnect fails during the upgrade process. The working images of the fabric interconnect are stored on the bootflash. Which set of commands recovers the fabric interconnect?
48.
A server fails to boot from the operating system after a RAID1 cluster migration. The RAID remains in an inactive state during and after a service profile association. Which action resolves the issue?
49.
The vPC between switch1 and switch2 does not work. Which two actions resolve the problem? (Choose two.)
50.
An engineer upgrades Cisco UCS firmware from release 3. 1(2) to release 3. 1(3) using Autolnstall. Both fabric interconnects go ofline during the software upgrade installation and issue multiple F SM retries in the DeployPollActivate stage. Which set of actions resolves the issue?
51.
An engineer is troubleshooting the connectivity between Server-1 and Server-2. Which action resolves the connectivity issue?
52.
The administrator set up two pairs of Cisco Nexus switches. The administrator set dfferent vPC priorities on all four Nexus switches. As soon as the administrator activates the vPC between the two pairs the network faces different issues. The problems range from both Nexus pairs declare themselves as root bridge, as well as spanning-tree inconsistencies and traffic forwarding issues. Which action resolves these issues?
53.
Cisco UCS Manager is being upgraded using the Auto Install feature, but the FSM fails. Which action resolves the issue?
54.
An engineer discovers that an NPV/NPIV uplink experiences a heavy load and plans to add more uplinks. Which statement about what occurs when the new uplinks are added is true?
55.
An engineer must upgrade all components in a Cisco UCS domain to the same package version, but the upgrade process fails to complete. Which set of Auto Install actions resolves the problem?
56.
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?
57.
An engineer performs a POST operation using REST API on the Cisco Nexus switch to retrieve a managed object, but the operation fails. Which configuration resolves the issue?
58.
A Cisco Nexus 9000 Series Switch crashes and fails to boot. An engineer must recover the switch and investigate the issue. The switch uses 172.20.50.213/24 IP address for management and its default gateway is 172.20.50.254. Drag and drop the steps for recovering the Cisco Nexus 9000 Series Switch from the left onto the right. Not all steps are used
59.
During a boot process of a Cisco UCS C-Series Rack Server, an engineer receives a "No Signal" message from the vKVM and physical connection. Which set of steps resolves the issue?
60.
A blade that is connected to FI-B fails to boot from a SAN LUN. The boot policy is configured to boot by using vHBA1 as the SAN Primary. Which set of actions resolves the issue?
61.
A system administrator adds two vNICs to an existing service profile that is used to run a vSphere environment to support disjoint Layer 2 network connectivity. However, after the server is rebooted, the host is not accessible on the network Which action resolves the issue?
