A server administrator attempts to change the Cisco IMC KVM certificate to one signed by a private CA, but the certificate is not being accepted. What can cause this process to fail?

Refer to the exhibit.

A Postman call to a Cisco APIC fails. The access credentials were confirmed to be configured as expected.
Which action resolves the issue?

Refer to the exhibit.

vPC between switch1 and switch2 is not working. Which two actions are needed to fix the problem? (Choose two.)

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?

Refer to the exhibit.

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?