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Home > Archive > CCNP > August 2001 > Help Needed
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| zindagi 2001-08-29, 7:50 am |
| Hi,
I am confused about the answers of the following questions. They are belong to BCMSN exam. I appreciate if anyone can help to resolve the confusion.
Q1. An Ethernet media trunk is configured and operation between Cisco switches. Each switch has identical modules, software revisions and VLAN configuration information. STP is disabled on all VLANs. Problems have been identified regarding frames between two VLANS. What is the most likely cause of this problem?
A. The duplex mode is different at each switch.
B. The link is using IEEE802.1Q protocol in point-point mode.
C. The link is using 802.10 trunk protocol, with the SAID parameters incorrectly set.
D. The link is using ISL protocol and the native VLAN information is different at each end of the link.
E. The link is using IEEE802.1Q protocol and the native VLAN information is different at each end of the link.
Q2: An Ethernet media trunk line is to be configred to operate in ISL mode between two CISCO switchess, each having identical modules, softwares and VLAN config information. which two are NOT required for the trunk to operate in ISL mode correctly?
A. Identical speed at each end of the link.
B. Identical duplex at each end of the link.
C. Identical native VLAN parameter at each end of the link.
D. Identical trunk negotiation parameter at each end of the link.
E. Identical trunk encapsulation parameter at each end of the link.
F. compatible trunking mode shared by the ports connection the link at either end. | |
| peterd 2001-08-29, 9:04 am |
| Hi Zindagi,
Q1, E, 802.1Q needs the same native VLAN at each end.
Q2, C & D, ISL doesn't need the same native VLAN or the same trunk negotiation, one could be 'auto' and the other could be 'on', for instance.
regards
Peter |
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