H12-261-ENUの無料問題集（525題）、H12-261-ENU認定試験参考書

Huawei H12-261-ENU 問題集

試験コード：H12-261-ENU

試験名称：HCIE-Routing&Switching (Written)(Huawei Certified ICT Expert-Routing & Switching)

最近更新時間：2025-06-28

問題と解答：全525問

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質問 1：
The data result of a certain router is as shown in the figure below. According to this analysis, which conclusion is correct?

A. The circuit-level of Eth0/0/1 of the R3 router is Level-1-2.
B. R3 is a Level-1 and Level-2 DIS on the link where Eth0/0/0 is located.
C. Eth0/0/1 of the R3 router is enabled with both IPv4 and IPv6 ISIS.
D. The GE0/0/0 port of R3 and the neighbor are in different areas.
正解：A

質問 2：
Which of the following description of the ISS's GR is correct?
A. The ISIS's GR notifies the event and maintains the neighbor relationship through the CSNP packet.
B. The GR feature of ISIS is enabled by default.
C. ISIS's GR has a total of four timers.
D. ISIS's GR defines a new TLV structure to support this feature.
正解：D

質問 3：
If there is no zoning, which of the following statements are correct about the link state routing protocol? (Multiple Choice)
A. Routers in the entire routing domain have the same LSDB
B. Each router establishes a routing domain topology.
C. The router sends all link state information from the neighbor to all other neighbors to ensure that the data in the database is synchronized.
D. Each router learns routing entries from the updated routing information and adds them to the routing table.
E. Routers in the same routing domain may repeatedly receive the same link state information.
正解：A,B,E

質問 4：
The second-layer network architecture of a company is as shown in the figure. After the engineer is configured, the services between the departments cannot be communicated. Check the status of the device as follows. Which is the possible reason? (No figure is shown, the MSTP three elements are different, causing the entry to appear on the master port.)
A. The BPDU interval configuration between switches is inconsistent.
B. Instance VLAN mapping configuration between the switches is inconsistent
C. The Revision Level configuration between switches is inconsistent
D. The Region Name configuration between the switches is inconsistent
正解：B,C,D

質問 5：
Which of the following description of the 8021s deployment features is correct?
A. Multiple bridges share a spanning tree instance
B. Multiple VLANs share a spanning tree instance
C. All VLANs share a spanning tree instance
D. Each VLAN shares a spanning tree instance
正解：B

質問 6：
As shown in the figure, three switches SW1, SW2 and SW3, where SW1 is the root bridge, the link between SW1 and SW2 is congested, and SW2 cannot receive the configuration BPDU sent by the root bridge. Which spanning tree protection mechanism does the administrator need to configure to prevent link congestion?

A. Loop protection
B. TC-BPDU protection
C. Root protection
D. BPDU protection
正解：A

質問 7：
After the BGP route is imported to other protocols, the next hop in the BGP routing table is the same as the next hop of the routing protocol imported.
A. False
B. True
正解：A

質問 8：
Why does RSTP converge faster than STP?
A. RSTP convergence is based on mechanisms other than the timers.
B. RSTP has more Port states.
C. RSTP has less overhead.
D. RSTP has smaller timers.
正解：A

質問 9：
Router R1 and Router R2 run BGP. Both routers are in the AS 65234. The route of router R2 exists in the BGP routing table of router R1, but is not in the IP routing table of router R1. So, what caused the problem?
A. Router R1 does not enable BGP Multi-hop
B. Routing is not optimal
C. Synchronization is turned off
D. The BGP neighbor relationship is Down.
正解：B

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Huawei HCIE-Routing&Switching (Written)(Huawei Certified ICT Expert-Routing & Switching) 認定 H12-261-ENU 試験問題:

1. An OSPF protocol is running on a company network. An engineer wants to understand the OSPF mechanism to perform packet capture operations on the network, which of the following description about the OSPF packet is correct? (Multiple Choice)

A) LS Update message synchronizes the link state database by sending detailed LSA information.
B) Sending Hello packets immediately after the interface joins the OSPF area.
C) The LS Update message is sent only when the adjacency is established.
D) After receiving the LS Update message, the router must send LS Ack to confirm.

2. The router HW1 exists as an MPLS LSR router in the network of the operator HW. The router receives a packet carrying a label, but the label entry does not exist in its LFIB. So how does the router handle the packet?

A) Router HW1 will strip the label and find the IP destination address of the FIB.
B) Router HW1 uses LDP to create an LSP and creates a new path for the label carried in the packet in the LFIB.
C) Router HW1 will forward the packet using the default label.
D) Router HW1 will discard the packet.

3. In the ISIS broadcast network database synchronization process, the following statement which is correct?

A) R2 acts as DIS, and the Hello time is three times than the ordinary router.
B) R2 acts as DIS and periodically sends CSNP.
C) R2 acts as DIS will not receive PSNP requests for other routes.
D) R1 and R3 maintain database consistency by periodically sending PSNP requests.

4. If you run the PM-SM protocol on the multicast network, you need to configure the RP. The configuration mode of the RP is classified into dynamic RP and static RP. Which of the following description of the RP configuration is correct?

A) When configuring a dynamic RP, you do not need to configure a BSR.
B) When configuring a static RP, you need to configure the BSR advertisement RP information.
C) When configuring a static BP, you need to specify the RP information on all PIM routers.
D) When configuring a dynamic RP, you need to configure the BSR as the backup of the RP.

5. Which of the following are DoS (Denial of Service) attacks? (Multiple choice)

A) Flood attack
B) Single packet attack
C) Source IP address spoofing attack
D) Middleman attack

質問と回答：

質問 # 1
正解： A、B

質問 # 2
正解： D

質問 # 3
正解： B

質問 # 4
正解： C

質問 # 5
正解： A、B、C