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642-813 Implementing Cisco IP Switched Networks We believe in helping our customers achieve their goals. For this reason, we take great care while preparing our Questions and Answers , Core Administration. Our practice tests Administration are prepared with the help of highly professional people from the industry, so we benefit from their vast experience and knowledge.

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QUESTION 1
Which two statements concerning STP state changes are true? (Choose two.)
A. Upon bootup, a port transitions from blocking to forwarding because it assumes itself as root.
B. Upon bootup, a port transitions from blocking to listening because it assumes itself as root.
C. Upon bootup, a port transitions from listening to forwarding because it assumes itself as root.
D. If a forwarding port receives no BPDUs by the max_age time limit, it will transition to listening.
E. If a forwarding port receives an inferior BPDU, it will transition to listening.
F. If a blocked port receives no BPDUs by the max_age time limit, it will transition to listening.
Answer: BF
Section: SpanningTree

QUESTION 2
In a customer’s network, VLAN Trunking Protocol (VTP) is running with a domain named
main1. VLANs 1,2,3,4,5,10,20 are active on the network. Suddenly the whole network goes
down. No traffic is being passed on VLANs 2,3,4,5,10,20, however traffic passes on VLAN 1
and indicates all switches are operational. Right before the network problem occurred, a
switch named TEST1 was added to the network. What three configuration issues on TEST1
could be causing the network outage? (Choose three.)
A. TEST1 is configured as a VTP server with a different domain name.
B. TEST1 is not configured to participate in VTP.
C. TEST1 is configured as a VTP server with the domain name main1.
D. TEST1 has a lower VTP configuration revision than the current VTP revision.
E. TEST1 has a higher VTP configuration revision than the current VTP revision.
F. TEST1 is configured with only VLAN1.
Answer: CEF

QUESTION 3
Which statement is true about RSTP topology changes?
A. Only nonedge ports moving to the blocking state generate a TC BPDU.
B. Any loss of connectivity generates a TC BPDU.
C. Any change in the state of the port generates a TC BPDU.
D. Only nonedge ports moving to the forwarding state generate a TC BPDU.
E. If either an edge port or a nonedge port moves to a block state, then a TC BPDU is generated.
Answer: D

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