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
In a broadcast type network, what is the default time interval for DIS to send HELLO?
- A . 5S
- B . 10s
- C . 3.3S
- D . 40S
Which of the following types of LSA can carry TAG information for external routes?
- A . LSA5
- B . LSA4
- C . LSA3
- D . LSA2
With regard to the Stub area, the correct understanding of the Stub area and NSSA is:
- A . The STUB area can only flood the Type 3 LSA, and the complete STUB area cannot flood any Type 3 LSA.
- B . The biggest difference between a fully stub area and a stub area is that Type 3 LSAs cannot be flooded
- C . The STUB area can import AS external routes, but NSSA cannot import AS external routes
- D . The STUB area can flood Type 3 and Type 4 LSAs, and the complete STUB area cannot flood Type 3 and Type 4 LSAs
Which of the following descriptions about MUX VLAN is wrong?
- A . Each GROUP VLAN must be bound to a RINCIPAL VLAN
- B . If the VLAN ID has been used for the PRINCIPAL VLAN, then the VLAN can no longer be used for the VLANIF interface, SUPER VLAN, and SUB VLAN
- C . After the port is enabled with the MUX VLAN function, it can also be used for VLAN MAPPING and VLAN STACKING configuration
- D . Enterprises can use PRINCIPAL PORT to connect to the corporate server, SEPARATE PORT to connect to corporate customers, and GROUP PORT to connect to corporate employees, so that can achieve the purpose of corporate customers and employees accessing the corporate server, while corporate employees can communicate with each other, but not between corporate customers, the corporate customers and corporate employees cannot access to each other.
Regarding the description of OSPF route aggregation, which of the following is wrong?
- A . Route aggregation refers to the aggregation of routing information of the same prefix, and only advertises one route to other areas
- B . Through route aggregation, routing information can be reduced, thereby reducing the size of the routing table, and improving the performance of the router
- C . OSPF has two route aggregation methods, ABR aggregation and ASBR aggregation
- D . Any router in OSPF can perform route aggregation operations
The following is a partial configuration of a router. Which part of the configuration description is correct?
ip IP- prefix pl permit 10.0. 192.0 8 greater-equal 17 less-equal 18
- A . In the 10.0.192.0/8 network segment, the route with a mask length of 18 will be matched to the prefix list, and the matching rule is allowed.
- B . In the 10.0.192.0/8 network segment, the route with a mask length of 19 will be matched to the prefix list, and the matching rule is allowed.
- C . In the 10.0.192.0/8 network segment, the route with a mask length of 20 will be matched to the prefix list, and the matching rule is allowed.
- D . In the 10.0.192.0/8 network segment, the route with a mask length of 21 will be matched to the prefix list, and the matching rule is allowed.
The following is about the ROUTER-LSA connection type (Type), which of the following description is wrong?
- A . POINT-TO-POINT describes a point-to-point connection from this router to neighboring routers
- B . TRANSNET describes the connection from this router to a TRANSIT network segment
- C . STUBNET describes a connection from this router to a STUB network segment
- D . P2MP describes the connection of a local router to multiple neighbor routers
Although the STP protocol can solve the loop problem, the slow convergence of the network topology affects the quality of user communication. RSTP has made many improvements to STP. Which of the following is not an improvement of RSTP to STP?
- A . RSTP’s port state specification is divided according to whether the port forwards user traffic and learns MAC addresses, reducing the original 5 port states to 3
- B . The non-root switch running RSTP sends configuration BPDUs at the interval specified by the Hello Timer. This behavior is completely performed by each device independently
- C . RSTP deletes 3 port states and adds 2 new port roles
- D . If a port does not receive the configuration BPDU sent by the upstream device within 4 consecutive Hello Time, the device considers that the negotiation with the neighbor has failed
About information description of ASBR-Summary-LSA of OSPF, which of the following statement is wrong?
- A . Link State indicates the Router ID of ASBR
- B . Advertising Router represents the Router ID of the ABR
- C . The Advertising Router field in the ASBR-Summary-LSA of all areas is the same.
- D . Metric represents the OSPF cost of the ABR to the ASBR
Regarding the description of OSPF external routing types, which is wrong?
- A . OSPF is divided into the Type 1 of external routing and the Type 2 of external routing.
- B . The cost value of OSPF type 1 external route is only the external cost value of the AS, and the internal cost value of the interconnected AS
- C . The cost of OSPF type 2 external routes is the sum of the internal cost of the AS and the external cost of the AS
- D . Under the same conditions, OSPF’s type 1 of external route always takes precedence over the Typle 2 of external route
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