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
The following is part of the information output by the router Huawei. Which of the following description of this part of information is wrong?
- A . The display pim rp-info command is used to view the RP information corresponding to the multicast group
- B . The RP address is 2.2.2.2.
- C . The priority of RP is 0
- D . The group address is 225.0.0.0
Regarding the cost value (Cost) of the routing protocol, which of the following description is incorrect?
- A . Because different routing protocols use different basis for calculating routing costs, it is generally recommended to automatically switch when importing routes.
- B . Because different routing protocols have different basis for calculating routing costs, manual configuration is generally recommended when importing routes.
- C . Generally, the cost values of ISIS and OSPF are based on bandwidth, and the range of values is wide.
- D . Generally, the overhead of RIP is based on the number of hops, and the value range is very small.
By default, the SSM group range is 232.0.0.0/8. If you want to modify the SSM group range, which of the following configurations is correct?
- A . Configure ssm-policy acl-number in system view.
- B . Configure ssm-policy advanced-acl-number in system view.
- C . Configure ssm-policy acl-number in PIM view.
- D . Configure ssm-policy advanced-acl-number in PIM view.
What is the wrong description of the LSA header information in the AS-External-LSA of OSPF?
- A . Link state ID indicates the destination network address
- B . Advertising Router represents the Router ID of ASBR
- C . Net mask represents the net mask of the destination network segment
- D . Forwarding Address is always 0.0.0.0
Which of the following description of EGP and IGP is wrong
- A . IGP is a routing protocol that runs inside the AS
- B . EGP is a routing protocol running between ASs
- C . IGP focuses on controlling the propagation of routes and choosing the best route
- D . EGP itself is an ancient agreement
Which of the following description of Local-Preference is correct?
- A . Local-Preference is recognized as a mandatory attribute.
- B . Local-Preference affects the traffic entering the AS
- C . Local-Preference can be spread across AS
- D . The default value of Local-Preference is 100
Which of the following about the description of OSPF features is wrong?
- A . OSPF uses link state algorithm
- B . Each router advertises local link state information through flooding LSA
- C . Each OSPF device collects LSAs sent by other routers, and all LSAs are put together to form the link state database LSDB.
- D . The LSDBs on all routers in OSPF area 0 are the same.
- E . According to the directed graph, each router uses the SPF algorithm to calculate a shortest path tree with itself as the root, and this tree gives the route to each node in the autonomous system.
How does the COMMUNITY attribute of the route set by the routing strategy affect the route selection?
- A . It can be indirectly affected. By setting the COMMUNITY attribute of the route, the route can be classified, and then different routing-related attributes, such as LOCAL-PRE, MED, etc., can be set according to the category, so as to achieve the purpose of influencing routing
- B . It cannot be affected because the COMMUNITY attribute of the route is a non-transitional attribute and cannot be passed between routers
- C . It can be affected indirectly. By setting the COMMUNITY attribute of the route, the route can be classified, and then different routing-related attributes can be set according to the category. These attributes can only include LOCAL-PRE, MED, to achieve the purpose of influencing routing selection.
- D . After the router receives the route update with the COMMUNITY attribute of NO_ADVERTISE, it will not be published outside the local AS.
Which of the following description of OSPF message verification is wrong?
- A . The verification modes supported by AR2200 are divided into NULL SIMPLE MD5 and HMAC-MD5 according to the different methods specified in the encryption protocol.
- B . AR2200 supports two authentication methods: area verification and interface verification
- C . When regional verification methods and interface verification methods exist at the same time, regional verification is preferred
- D . Only OSPF packets that pass authentication can be accepted, otherwise, neighbors cannot be established normally
About the warning information "OSPF/2/IFAUTFAIL (OID) [1.3.6.1.2.1.14.16.2.6]:
A packet is received on a non-virtual interface from a router whose authentication key or authentication type conflicts with the local authenctication key or authenctication type. (IfIpAddress=[ip-address], AddressLessIf=[interface-index], ProcessId= [process -id], RouterId=[router-id], PacketSrc=[source-ip-address], ConfigErrorType=[error-type], PacketType=[packet-type], InstanceName=[instance-name])"
Which of the following description is wrong?
- A . It may be caused by incorrect interface verification and coordination
- B . Errors that may be caused by inconsistent HELLO time intervals
- C . The error may be caused by the subnet mask mismatch
- D . The error may be caused by the area code mismatch