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Which statement correctly describes the function of a private VLAN?

Which statement correctly describes the function of a private VLAN?

PrepAway - Latest Free Exam Questions & Answers

A.
A private VLAN partitions the Layer 2 broadcast domain of a VLAN into subdomains.

B.
A private VLAN partitions the Layer 3 broadcast domain of a VLAN into subdomains.

C.
A private VLAN enables the creation of multiple VLANs using one broadcast domain.

D.
A private VLAN combines the Layer 2 broadcast domains of many VLANs into one major
broadcast domain.

Explanation:
A private VLAN partitions the Layer 2 broadcast domain of a VLAN into subdomains, allowing you
to isolate the ports on the switch from each other. A subdomain consists of a primary VLAN and
one or more secondary VLANs. All VLANs in a private VLAN domain share the same primary
VLAN. The secondary VLAN ID differentiates one subdomain from another. The secondary VLANs
may either be isolated VLANs or community VLANs. A host on an isolated VLAN can only
communicate with the associated promiscuous port in its primary VLAN. Hosts on community
VLANs can communicate among themselves and with their associated promiscuous port but not
with ports in other community VLANs.
Reference:
http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus4000/nexus4000_i/sw/configuratio
n/guide/rel_4_1_2_E1_1/n400xi_config/PrivateVLANs.html


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