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Huawei H12-221-ENU Exam Syllabus Topics:

Huawei HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network) Sample Questions:

1. About the description of IGMP Snooping, which of the following is correct? (Multiple choice)

A) IGMP Snooping does not consume the CPU of the switch.
B) IGMP Snooping solves the problem of multicast broadcast at Layer 3.
C) IGMP Snooping operates at the link layer and is a multicast constraint mechanism on Layer 2 Ethernet switches for managing and controlling multicast groups.
D) IGMP Snooping establishes a MAC multicast address table by listening to the IGMP messages sent by hosts.

2. As shown in the figure, an OSPF multi-process is configured on the RT1 router, wherein process 100 of RT1 establishes an OSPF neighbor through the backbone area with RT2, and process 200 establishes an OSPF neighbor through the backbone area with RT3.

Please select the wrong options:

A) The OSPF process on router RT2 can use process 100 and RT1 to establish neighbors.
B) The router RT3 public network routing table has OSPF routes to RT1 and RT2 routers.
C) The router RT1 public network routing table has routes to RT2 and RT3.
D) Because both RT1-RT2 and RT1-RT3 establish neighbors through the backbone area, the RT2 OSPF process has the LSA generated by the RT1 OSPF process.

3. On the device running MSTP obtain the information as shown in the figure. Note that the status of the port on Ethernet 1/0/13 in Instance 1 is:

A) Discarding
B) NONE
C) Forwarding
D) ALTE

4. IGMP stipulates that when there are multiple routers in shared network, the IGMP protocol itself elects the querier.

A) True
B) False

5. When BGP is configured, such an alarm is generated: "BGP/2/BACKWARD: OID[oid] The BGP FSM moves from a higher numbered state to a lower numbered state." The incorrect reason for this is:

A) BGP received the wrong BGP protocol packet.
B) The BGP Holdtimer times out and does not receive Keeplive packets.
C) BGP neighbor reset, actively interrupt neighbors
D) BGP receives the neighbor's Notefication message.
E) The alarm is a normal alarm and does not need to be processed.

Solutions: