QUESTION: 129

The function of the Hop Limit field in an IPv6 basic header is similar to the function of which field in an IPv4 header?

Protocol
Time to Live
Flags
Identification

Answer(s): B

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On the network shown in the figure below, SW1, SW2 and SW3 are deployed. SW1 is the root bridge, link congestion occurs between SW1 and SW2, and SW2 cannot receive configuration BPDUs sent by the root bridge. Given this information, which of the following spanning tree protection mechanisms needs to be configured to prevent problems caused by link congestion?

Defense against TC BPDU attacks
Root protection
BPDU protection
Loop protection

Answer(s): B

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QUESTION: 131

Which of the following statements regarding OSPF route filtering is false?

The filtering of Type 3 LSAs needs to be configured on ABRs in OSPF.
In a NSSA, when external routes are imported to the OSPF router and LSAs are advertised to its neighbors, LSA filtering can be performed on the ASBR or ABR.
All LSAs, except Grace LSAs, can be filtered based on interfaces in the inbound and outbound directions.
When routes are calculated based on the LSDB, the filter-policy import command can be executed to filter routes. This filtering mode affects only the addition of routes in the routing table, and has no impact on the OSPF LSDB.

Answer(s): C

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QUESTION: 132

Which messages are sent to the agent by the network management station (NMS) running SNMPv1?

Trap, Get, and Set messages
Only Trap messages
Get, Set, and GetNext messages
Get, Set, and GetBulk messages
Get, Set, and GetNext, and GetBulk messages

Answer(s): C

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QUESTION: 129

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QUESTION: 132