Huawei H12-261-ENU 問題集

質問 1：
As shown in the following topology, EBGP is run between AS100, AS200, AS300, and AS400. The neighbor relationship is established. When AS400 receives the BGP route from the network segment 1.1.1.1/32, what is the correct path order recorded in the AS path attribute?

A. 10 , 200 , 3
B. 400 , 300 , 200 , 100
C. 100 , 200 , 300 , 400
D. 300 , 200 , 100
正解：D

質問 2：
Which statements regarding IBGP or EBGP neighbors are true? (Multiple Choice)
A. BGP updates from an IBGP peer are propagated to other IBGP and EBGP peers.
B. BGP updates from an EBGP peer are propagated to other IBGP and EBGP peers.
C. EBGP neighbor peering must use the physical interface address to establish peering.
D. IBGP neighbor peering can be established using the loopback interface address.
E. EBGP peers must be directly connected; otherwise, the EBGP-multihop option must be configured.
F. IBGP peers must be directly connected; otherwise, the IBGP-multihop option must be configured.
正解：B,D,E

質問 3：
The HTTP protocol is based on TCP. Therefore, you can use the TCP Flood attack defense method to defend against HTTP flood attacks.
A. False
B. True
正解：A

質問 4：
802.1s defines deployment for which of the following?
A. One STP instance for each VLAN
B. One STP instance for each set of VLANs
C. One global instance for all VLANs
D. One STP instance for each set of Bridges
正解：B

質問 5：
Which of the following options may affect the establishment of IBGP neighbors? (Multiple Choice)
A. IGP routing is unreachable
B. Authentication is unsuccessful
C. IBGP - Multi-hop not configured
D. The BGP protocol version is inconsistent
正解：A,B,D

質問 6：
If the PM-SM protocol is run on the multicast network, you need to configure the RP. The configuration of the RP is classified into dynamic RP and static RP. The following which is the correct description of the RP configuration?
A. When configuring static BP, you need to specify the RP information on all PIM routers.
B. When configure static RP, you need to configure the BSR advertisement RP information.
C. You do not need to configure BSR when configuring dynamic RP.
D. When configuring dynamic RP, you need to configure the BSR as the backup of the RP.
正解：A

質問 7：
Which of the following technologies use tunnels to communicate between IPv6 addresses? (Multiple Choice)
A. Dual Stack
B. ISATAP
C. 6to4
D. NAT64
正解：B,C

質問 8：
If a DR is elected between the multicast routers running PIM-SM to be responsible for receiving and receiving multicast data on the source or member, what is the correct description of the DR election rules?
A. A PIM router with a low DR priority value is elected as the DR.
B. The PIM router with a long interface mask is elected as the DR.
C. Compare the DR priorities first, if the priorities are the same, you need to compare the IP addresses of the PIM router interface to elect DRs.
D. A router with a small IP address is elected as a DR.
正解：C

質問 9：
ISIS will elect DIS in the broadcast multi-access network. Which of the following statement about DIS is correct? (Multiple Choice)
A. DIS supports the preemption function. After the new DIS preemption is successful, it does not need to flood any LSPs.
B. In a broadcast multi-access network, the DIS sends Hello PDUs three times as often.
C. DIS guarantees database synchronization by periodically sending CSNP messages
D. ISIS elects the DIS by comparing the priorities, and compares the MAC addresses if the priorities are the same.
正解：B,C,D