A network engineer wants to add a new switch to an existing switch stack. Which configuration must be added to the new switch before it can be added to the
switch stack?

A.
No configuration must be added.

B.
stack ID

C.
IP address

D.
VLAN information

E.
VTP information

Explanation:
Switch Stack Offline Configuration
You can use the offline configuration feature to provision (to supply a configuration to) a new switch before it joins the switch stack. You can configure in advance
the stack member number,
the switch type, and the interfaces associated with a switch that is not currently part of the stack. The configuration that you create on the switch stack is called the
provisioned configuration . The switch that is added to the switch stack and that receives this configuration is called the provisioned switch.
You manually create the provisioned configuration through the switch stack-member-number provision type global configuration command. The provisioned
configuration is automatically created when a switch is added to a switch stack and when no provisioned configuration exists. When you configure the interfaces
associated with a provisioned switch (for example, as part of a VLAN), the switch stack accepts the configuration, and the information appears in the running
configuration. The interface associated with the provisioned switch is not active, operates as if it is administratively shut down, and the no shutdown interface
configuration command does not return it to active service. The interface associated with the provisioned switch does not appear in the display of the specific
feature; for example, it does not appear in the show vlan user EXEC command output.
The switch stack retains the provisioned configuration in the running configuration whether or not the provisioned switch is part of the stack. You can save the
provisioned configuration to the startup configuration file by entering the copy running-config startup-config privileged EXEC command. The startup configuration file
ensures that the switch stack can reload and can use the saved information whether or not the provisioned switch is part of the switch stack. Effects of Adding a
Provisioned Switch to a Switch Stack When you add a provisioned switch to the switch stack, the stack applies either the provisioned configuration or the default
configuration. Table 5-1 lists the events that occur when the switch stack compares the provisioned configuration with the provisioned switch.
Table 5-1 Results of Comparing the Provisioned Configuration with the Provisioned Switch Scenario
Result
The stack member numbers and the switch types match.
If the stack member number of the provisioned switch matches the stack member number in the
provisioned configuration on the stack, and
2.
If the switch type of the provisioned switch matches the switch type in the provisioned configuration on the stack.
The switch stack applies the provisioned configuration to the provisioned switch and adds it to the
The stack member numbers match but the switch types do not match.
1.
If the stack member number of the provisioned switch matches the stack member number in the provisioned configuration on the stack, but

2.

The switch type of the provisioned switch does not match the switch type in the provisioned configuration on the stack.

The switch stack applies the default configuration to the provisioned switch and adds it to the stack.
The provisioned configuration is changed to reflect the new information. The stack member number is not found in the provisioned configuration.
The switch stack applies the default configuration to the provisioned switch and adds it to the stack.
The provisioned configuration is changed to reflect the new information. The stack member number of the provisioned switch is in conflict with an existing stack
member. The stack master assigns a new stack member number to the provisioned switch.
The stack member numbers and the switch types match:
If the new stack member number of the provisioned switch matches the stack member number in
the provisioned configuration on the stack, and
2.
If the switch type of the provisioned switch matches the switch type in the provisioned configuration on the stack.
The switch stack applies the provisioned configuration to the provisioned switch and adds it to the stack.
The stack member numbers match, but the switch types do not match:
1.
If the stack member number of the provisioned switch matches the stack member number in the provisioned configuration on the stack, but
2.
The switch type of the provisioned switch does not match the switch type in the provisioned configuration on the stack.
The switch stack applies the default configuration to the provisioned switch and adds it to the stack.
The provisioned configuration is changed to reflect the new information. The stack member number of the provisioned switch is not found in the provisioned
configuration.
The switch stack applies the default configuration to the provisioned switch and adds it to the stack.

http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/software/release/12- 2_55_se/configuration/guide/3750xscg/swstack.html