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Updated Jan-2023 Pass H12-821_V1.0-ENU Exam – Real Practice Test Questions

QUESTION 30
When the stateful inspection firewall forwards subsequent data packets (not the first packet), which of the following is the main basis?

Route table

OFIB table

MAC address table

Session table

QUESTION 31
To achieve the traffic filtering function, can use traffic-flter or MQC. Compared with traffic-filter, MQC can be called in more views.

True

False

QUESTION 32
Which of the following OSPF messages carry master-slave relationship information?

LSA Update message

LSA Request message

D.D message

Hello message

QUESTION 33
Which of the following about OSPF is true?

OSPF LSA is updated regularly every 30 minutes

OSPF floods an LSU every 5s

OSPF uses Bellman-Ford algorithm, each router runs the algorithm independently

OSPF itself does not have a confirmation mechanism, so OSPP relies on the underlying protocol, namely TCP confirmation.

QUESTION 34
Will setting the community attribute of the route through the routing policy affect the route selection?

It can be indirectly affected. You can classify routes by setting the Community attribute of the route, and then set different routing-related attributes according to the category, such as Local_Pre, MED, etc., so as to achieve the purpose of influencing routing

It cannot be affected because the Community attribute of the route is a non-transitional attribute and cannot be transmitted between routers

It can be indirectly affected. You can classify routes by setting the community characteristics of routing, and then set different routing-related attributes according to the category. These attributes only include Loacal_Pre and MED, so as to achieve the purpose of influencing the routing

After the router receives the route update with the Commmity attribute of No_ Advertise, it will not be published outside the local AS

QUESTION 35
Among the commonly used routing policy tools for BGP, what can be used to filter routes? (Multiple choice)

traffic-policy

ip extcommunity-filter

filter-policy

route-policy

QUESTION 36
There are many ways to establish a cluster for modular switches. What methods does Huawei modular switches support to establish a cluster? (Multiple choice)

Established through the cluster card on the interface board

Established through the cluster card on the main control board

Established through the business interface on the interface board

Established through the cluster card on the switching network board

QUESTION 37
Which of the following scenarios is suitable for SD-WAN solutions?

Enterprise branch interconnection

Internal interconnection of enterprise data center networks

Wireless network deployment in the enterprise campus

QUESTION 38
Which function does the switch control plane not include?

Business processing

Routing calculation

System loading

Traffic statistics

QUESTION 39
SSH uses asymmetric addition AES and DES to realize the security of data transmission, and uses HMAC to ensure complete data integrity verification.

True

False

QUESTION 40
The edge port in RSTP does not need to wait for the forwarding delay, and can directly enter the forwarding state. If the edge port receives the BPDU, the edge port will be directly closed and enter the error down state.

True

False

QUESTION 41
The relationship between various rules in MQC flow classification is divided into: and or or, and the relationship is () by default.

QUESTION 42
About the OSPF calculating the shortest path tree phase, which of the following description is true?

Stub network segment is calculated in the first stage, router node and transit network segment are calculated in the second stage

The routing node and Transiti network segment are calculated in the first stage, Stub network segment is calculated in the second stage

The Stub segment is calculated in the first stage, the routing node is calculated in the second stage

The routing node is calculated in the first stage, the stub network segment is calculated in the second stage

QUESTION 43
In the WL AN network, enabled HSB backup group, after the AP has been online on the active AC, then Offline on the standby AC and add the AP information, AP status on the standby AC is Fault. At this time, you need to execute the undo hsb enable command in the HSB backup group view of the standby AC to disable the HSB active/standby backup function, and then execute the hsb enable command to enable the HSB active/standby backup function. At this time, the information on the active AC will be backed up to Standby AC to achieve consistent backup of active and standby information, the AP status on the AC will be displayed as standby.

True

False

QUESTION 44
The routing strategy supports multiple operations on routing attributes. Please match the parameters of the following apply clauses with their functions. (Drag and drop)

QUESTION 45
If roaming is realized between two APs, the same security policy forwarding mode and the same () must be met. (If English words are involved, please use capital letters)

SSID

QUESTION 46
The shortest path from the multicast source to the receiver becomes the shortest path tree SPT.

TRUE

FALSE

QUESTION 47
As shown in the figure, four routers in the same LAN are running lS-IS, where R1 is DIS, then R2, R3, R4 establish adjacency relationship with R1 respectively, and no adjacency relationship is established between R2, R3, and R4.