Which three of these statements regarding 802.1Q trunking are correct? (Choose three.)
A.
802.1Q native VLAN frames are untagged by default.
B.
802.1Q trunking ports can also be secure ports.
C.
802.1Q trunks can use 10 Mb/s Ethernet interfaces.
D.
802.1Q trunks require full-duplex, point-to-point connectivity.
E.
802.1Q trunks should have native VLANs that are the same at both ends.
Explanation:
CCNA Self-Study (ICND Exam):
Extending Switched Networks with Virtual LANs
http://www.ciscopress.com/articles/article.asp?p=102157&seqNum=2
Topic 2, IP Routing Technologies
ACE
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your reference states that ethernet ports do not support trunking
Cisco switches support IEEE 802.1Q for FastEthernet and GigabitEthernet interfaces. An 802.1Q trunk link provides VLAN identification by adding a 4-byte tag to an Ethernet Frame as it leaves a trunk port. Because the frame has been changed, a new frame check sequence (FCS) must also be computed and added to the frame. Figure 3-7 shows a frame entering an access port and leaving a trunk port with a tag.
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