Refer to the exhibit.

For security reasons, automatic neighbor discovery must be disabled on the R5 GiO/1 interface. These tasks must be completed:
* Disable all neighbor discovery methods on R5 interface GiO/1.
* Permit neighbor discovery on R5 interface GiO/2.
* Verify there are no dynamically learned neighbors on R5 interface Gi0/1.
* Display the IP address of R6*s interface Gi0/2.
Which configuration must be used?

A Cisco IP phone receive untagged data traffic from an attached PC. Which action is taken by the phone?

An engineer needs to add an old switch back into a network. To prevent the switch from corrupting the VLAN database which action must be taken?

R1 has learned route 10.10.10.0/24 via numerous routing protocols. Which route is installed?

A Cisco engineer must configure a single switch interface to meet these requirements
* accept untagged frames and place them in VLAN 20
* accept tagged frames in VLAN 30 when CDP detects a Cisco IP phone
Which command set must the engineer apply?
A)

B)

C)

D)