Huawei H12-221_V2.5-ENU HCIP-Routing & Switching-IERS V2.5 Online Training
Huawei H12-221_V2.5-ENU Online Training
The questions for H12-221_V2.5-ENU were last updated at Nov 20,2024.
- Exam Code: H12-221_V2.5-ENU
- Exam Name: HCIP-Routing & Switching-IERS V2.5
- Certification Provider: Huawei
- Latest update: Nov 20,2024
Two level-1 routers in different areas can form a neighbor relationship.
- A . True
- B . False
The active tree uses the shortest path from the multicast source to the receiver, so it is called the shortest path tree SPTA.
- A . True
- B . False
The first 4BIT of the IP multicast address is a fixed 1110, corresponding to the high 25BIT of the multicast MAC address. Only 23BIT of the last 28BIT of the IP multicast address is mapped to the MAC address, so the address information of 5BIT is lost. The direct result is that there are 32 IP multicast addresses mapped to the same MAC address.
- A . True
- B . False
In a network running STP, a variety of topology change information will be sent when the network topology changes. How many types of topology change information are defined in the RSTP network?
- A . One
- B . Two
- C . Three
- D . Four
The state where no connection is established between BGP neighbors and no attempt is made to establish a connection is:
- A . Established
- B . Idle
- C . Active
- D . Openconfirm
In the RSTP protocol, the uplink port of a non-root switch has a port identification parameter. This port identification consists of two parts, namely:
- A . One-byte port priority and one-byte port number
- B . One-byte port priority and two-byte port number.
- C . Two-byte port priority and one-byte port number
- D . Two-byte port priority and two-byte port number
Which of the following is a feature of OSPF stub area?
- A . AS-external-LSA is allowed to be published in the STUB area.
- B . The route to the outside of the AS can only be based on a default route manually generated by ABR.
- C . Virtual connection cannot cross STUB AREA
- D . Any area can become a STUB area
Which of the following description is wrong about the OSPF protocol?
- A . When a router receives a NETWORK-Summary-LSA, the router runs the SPF algorithm
- B . NETWORK-LSA is used to describe the link state information of the broadcast network segment and the NBMA network segment.
- C . A virtual link is a virtual link belonging to the backbone area AREA 0).
- D . The Type 4 of LSA is used to describe how to reach the ASBR and contains routing and topology information.
As shown in the figure below, if you want employees of department A to not communicate with each other, employees of department B can communicate with each other, but different departments cannot communicate with each other, and all employees can access the company’s server through MUX VLAN. To achieve this function, which of the following statement is correct?
- A . VLAN 2 is set to interoperable VLAN
- B . VLAN 100 is the slave VLAN
- C . VLAN 3 is set as the main VLAN
- D . VLAN 3 is set to interoperable VLAN
When a router running OSPF receives an LSA, and the LSA does not exist in its link state database, how will the router handle this LSA?
- A . The router will silently discard this LSA without returning any messages.
- B . This LSA will be flooded to other OSPF neighbors immediately.
- C . The LSA will be installed in its own link state database, and then the LSA will be confirmed through multicast.
- D . Check the Age of the LSA to see if it has expired.
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