Huawei H12-821_V1.0-ENU Exam Questions Updated – H12-821_V1.0-ENU Free Online Test

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Begin to Test:

1. 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 1 of 25

2. About LSA3, LSA4 and LSA5, which of the following description is true?

LSA5 will not change after traversing different areas, while LSA3 will change

LSA3, LSA4 and LSA5 will not change after traversing different areas

LSA3 will not change after traversing different areas, while LSA4 and LSA5 will change

LSA4 will not change after traversing different areas, while LSA3 and LSA5 will change

Question 2 of 25

3. For the information output by the display ospf peer, which of the following description is true?
<Huawei=display ospf peer
OSPF Process 1 with Router ID 10.1.1.2
Neighbors
Area 0.0.0.0 interface 10.1.1.2(Gigabitethernet1/0/0)'s neighbors
Router ID: 10.1.1.1
Address:10.1.1.1
State: Full Mode: Nbr is Slave Priority: 1
DR: 10.1.1.1BDR: None MTU: 0
Dead timer due in 38 sec
Retrans timer interval: 5Neighbor is up for 00: 00:04
Authentication Sequence: [0]

After negotiation during the DD exchange process, the local end becomes a slave

Address: 10.1.1.1 means the local interface address is 10.1.1.1

Router ID means that the local router ID is 10.1.1.1

Designated router (DR) for the address is 10.1.1.1

Question 3 of 25

4. Which of the following about the IS-IS protocol statement is false?

IS-IS protocol supports CLNP network

IS-IS protocol supports IP network

IS-IS protocol packets are directly encapsulated by the data link layer

The ls-ls protocol is a link state protocol running between ASs

Question 4 of 25

5. Which of the following about the description of the information contained in the OPEN message in the EGP is incorrect?

OPEN message contains local AS number information

OPEN message contains VERSION information

OPEN message contains Hold time message

OPEN message contains only BGP message header

Question 5 of 25

6. In a broadcast type network, what is the default time interval for DIS to send Hello?

10s

40s

3.3s

Question 6 of 25

7. Which of the following about the default routing of each protocol is incorrect?

BGP can deliver default routes

ISIS can issue default routes

OSPF cannot deliver default routes

Static default route can be configured

Question 7 of 25

8. The ACL command ac1 [ number ] ac1-number [ match-order{ autol config} ], where ac1-numnbe is used to specify the number of the access control list, and the value range of ac1-number of the basic access control list is ().

1000~3999

0~1000

3000~3999

2000 ~2999

Question 8 of 25

9. When the stateful inspection firewall forwarding a subsequent packet (non-first packet), which is mainly based on the following items?

Route table

OFIB table

MAC address table

Session table

Question 9 of 25

10. Which of the following tools cannot be directly referenced by the apply clause of route-policy?

IP-Prefix

day

community

origin

Question 10 of 25

11. The default interval for sending BFD detection packets is:

100ms

1000ms

10s

Question 11 of 25

12. Which of the following description of VRRP is false?

When using the protocol, you need to configure the virtual router number and virtual IP address on the router, and directly use the real MAC of the main router, so that a virtual router is added to this network

VRRP is a kind of redundant backup protocol. It is designed for LANs with multicast or broadcast capabilities (such as Ethernet) to ensure that when the next hop router device of a host in the LAN fails, another router can be used in a timely manner. Instead, to maintain the continuity and reliability of network communication

A virtual router is composed of a main router and several backup routers. The main router realizes the real forwarding function. When the main router fails, a backup router will become the new main router and take over its work.

The host on the network communicates with the virtual router, and there is no need to know all the information of the physical router on this network

Question 12 of 25

13. The command to configure VRRP to track the state of the physical interface is.

track vrrp vrid 1 interface Gigabitethernet0/0/0

vrrp vrid 1 interface Gigabitethernet0/0/0

vrrp vrid 1 track interface Gigabitethernet0/0/0

vrrp vrid 1 interface Gigabitethernet0/0/0 track

Question 13 of 25

14. Which of the following OSPF areas can only reach other areas through the default route?

Backbone area

totally stub area

NSSA

Non-backbone area

Question 14 of 25

15. When configuring dual-link hot backup, the engineer configured the CAPWAP heartbeat detection interval to be 20 seconds, and the dual-link backup function is enabled, then what is the time for the AP detecting that the active link times out to perform the active/standby switchover?

75 seconds

20 seconds

60 seconds

90 seconds

Question 15 of 25

16. Which of the following IEEE 802.11 standards corresponds to Wi-Fi 6?

802.11ac

802.11b

802.11n

802.11ax

Question 16 of 25

17. Which of the following OSPF messages carry master-slave relationship information?

LSA Update message

LSA Request message

D.D message

Hello message

Question 17 of 25

18. Which of the following description about verifying whether a received Hello message is legal is incorrect?

If the network type of the receiving port is a point-to-point type or a virtual link, the Network Mask field is not checked

The RouterDeadIntera1 field in the received Hello message must be consistent with the configuration of the receiving port

If the network type of the receiving port is broadcast, point-to-multipoint or NBMA, the Network Mask field in the received Hello message and the interface end may be inconsistent

The E-bit in the Options field of the received Hello message must be consistent with the configuration of the relevant area

Question 18 of 25

19. In the IS-IS broadcast network, which multicast MAC address does the Level-2 router use as the destination address for sending lH?

0180-c200-0016

0180-c200-0014

0180-c200-0015

0100-5E00-0002

Question 19 of 25

20. Which of the following description of BGP features is false?

BGP is an external routing protocol, which used to transfer routing information between ASs

BGP is a link state protocol

BGP has rich routing filtering and routing strategies

BGP supports CIDR

Question 20 of 25

21. Regarding the matters needing to be attention in configuring the Stub area, which of the following description of is true?

The virtual link can traverse the stub area

If an area is configured as a stub area, all routers in the area must be configured with stub area attributes

The backbone area can be configured as a stub area

ASBR can exist in the stub area

Question 21 of 25

22. Which of the following tools cannot be used for route filtering?

policy-based-route

ip community-filter

IP-Prefix

route-policy

Question 22 of 25

23. The following is part of the configuration information of the router Huawei. Which description is wrong about the configuration information?
[HUAWEI] ip as-path-filter 2 permit_200_300
[HUAWEI]route-policy test permit node 10
[HUAWE]-route-policy] if-match as-path-filter 2

Define a Route-Policy named test, the node serial number is 10

Set the AS path filter with sequence number 2 to allow AS200 and AS300 to be included in the routing information

Node 10 of the Route-Policy references AS path filter 2 and defines an if-match clause

The Route-Policy can only be called in the OSPF process

Question 23 of 25

24. Which of the following scenarios is not suitable for deploying interface policy routing?

In the scenario of multiple ISP outlets in the corporate network, different network segments of the intranet access the Internet through different ISP outlets

Modify the traffic originated locally-hop

On the core switch, draw the traffic from the internal network and external network to the AC device that is connected to the bypass

On the core switch, the traffic of mutual access between the internal network and the external network is dragged to the side-mounted security detection device

Question 24 of 25

25. Which of the following Hello messages is not included in the IS-IS protocol?

Leve1-1 LAN lH

P2PIlIH

Leve1-2 LANIIH

P2MP llH

Question 25 of 25

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Real Huawei H12-821_V1.0-ENU exam questions are available with actual Q&As. Candidates are recommended to read all the questions and answers to prepare for HCIP-Datacom-Core Technology V1.0 exam well. How to check the H12-821_V1.0-ENU exam questions? We share 10 free demo questions below for reading. You can test Huawei H12-821_V1.0-ENU exam questions by yourselves. Any questions, just contact us freely: [email protected].

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