QUESTION 1
Refer to the exhibit.
A network administrator is troubleshooting an EIGRP connection between Router A and Router B.
Given the debug output on Router A, which two statements are true? (Choose two.)
A. Router A received a hello packet with mismatched autonomous system numbers.
B. Router A received a hello packet with mismatched hello timers.
C. Router A received a hello packet with mismatched authentication parameters.
D. Router A received a hello packet with mismatched metric-calculation mechanisms.
E. Router A will form an adjacency with Router B.
F. Router A will not form an adjacency with Router B.
Answer: D,F
Explanation:
QUESTION 2
OSPF routes are being redistributed into EIGRP but they are not showing up in the routing table.
What are two possible causes? (Choose two.)
A. CEF has not been enabled.
B. Synchronization has been turned off.
C. Incorrect distribute lists have been configured.
D. No default metric has been configured for EIGRP.
E. The ip classless command is missing.
F. There are mismatched autonomous system numbers.
Answer: C,D
Explanation:
QUESTION 3
Refer to the exhibit.
Switches A and C are running PVST+ STP, and Switch B is running 802.1Q STP. If the BPDU of
the root in VLAN 1 is better than the BPDU of the root in VLAN 2, then there is no blocking port in
the VLAN 2 topology. The BPDU of VLAN 2 never makes a “full circle” around the topology; it is
replaced by the VLAN 1 BPDU on the B-C link, because B runs only one STP merged with VLAN
1 STP of PVST+. Thus, there is a forwarding loop.
What does PVST+ do to correct this?
A. Switch A sends PVST+ BPDUs of VLAN 2 (to the SSTP address that is flooded by Switch B)
towards Switch C. Switch C will put port C-B into a type-inconsistent state, which prevents the loop.
B. Switch B sends PVST+ BPDUs of VLAN 1 (to the SSTP address that is flooded by Switch A)
towards Switch C. Switch C will put port C-B into a type-inconsistent state, which prevents the loop.
C. Switch C sends PVST+ BPDUs of VLAN 2 (to the SSTP address that is flooded by Switch B)
towards Switch C. Switch A will put port C-B into a type-inconsistent state, which prevents the loop.
D. Switch A sends PVST+ BPDUs of VLAN 1 (to the SSTP address that is flooded by Switch B)
towards Switch B. Switch A will put port C-B into a type-inconsistent state, which prevents the loop.
Answer: A
Explanation:
QUESTION 4
Which two statements are correct about OSPF in a multiarea environment? (Choose two.)
A. OSPF will by default summarize routing updates between areas.
B. OSPF requires the use of the area range configuration command only when nondefault summarization is required.
C. OSPF ABR routers are needed only at the boundary of another OSPF area.
D. OSPF uses wildcard masks in the network statements but subnet masks in the area range statements.
E. OSPF requires that all areas have a least one ASBR.
Answer: C,D
Explanation:
QUESTION 5
Which three statements are correct about the IEEE 802.3af Power over Ethernet standard?
(Choose three.)
A. It defines a port that acts as a power source to be a PSE.
B. It defines a powered device to be a PDE.
C. It defines how a powered device is detected.
D. It defines three methods of delivering Power over Ethernet to the discovered powered device.
E. It describes five power classes to which a device may belong.
F. It defines power class 0 as being reserved for future use.
Answer: A,C,E
Explanation:
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