[UPDATED 2023] Free Huawei H12-821_V1.0-ENU Exam Questions Self-Assess Preparation
H12-821_V1.0-ENU Free Sample Questions to Practice One Year Update
NEW QUESTION # 361
Which of the following description about 0SPF DR is incorrect?
- A. When the DR Priority is the same, the one with the higher Router ID will be elected as the DR first
- B. If the value of DR Priority is large, the priority will be elected as DR
- C. When a new router with greater DR Priority joins in the OSPF network, the new router will preempt the original DR
- D. If the current DR fails, the current BDR will automatically become the new DR, and the BDR will be re-elected in the network
Answer: C
NEW QUESTION # 362
As shown in the figure, four routers run IS-IS, and they are all Level1-1-2 routers. Which of the following descriptions are correct? (Multiple choice)
- A. R1 and R4 can only establish a neighbor relationship of Level1-2
- B. R3 and R4 establish the neighbor relationship of Level1-1 and Level1-2 at the same time
- C. R1 and R3 can only establish the neighbor relationship of Level1-2
- D. R1 and R2 can only establish a neighbor relationship of Level1-1
Answer: A,C
NEW QUESTION # 363
The two routers RA and RB are directly connected, but the OSPF neighbor relationship cannot be established. The result of packet capture is shown in the figure. According to the packet capture analysis, which of the following is the reason why the OSPF neighbor relationship cannot be established?
- A. Do not belong to the same area
- B. Inconsistent encryption methods
- C. MTU sizes are different
- D. The Hello time interval does not match
Answer: B
NEW QUESTION # 364
Which of the following advantages of address translation technology is not included?
- A. Address translation can enable many hosts in the internal city network to share a P address to access the Internet
- B. Address translation can handle the case where the IP header is encrypted
- C. Address translation can shield the users of the internal network and improve the security of the internal network
- D. Address translation can enable internal network users (private IP addresses) to access the Internet conveniently
Answer: B
NEW QUESTION # 365
SSH uses asymmetric addition AES and DES to realize the security of data transmission, and uses HMAC to ensure complete integrity check of data.
- A. True
- B. False
Answer: B
NEW QUESTION # 366
The basic header length of an IPv6 packet is a fixed value.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 367
In the Eudemon firewall, which of the following data flows are defined as the outbound direction?
(Multiple choice)
- A. Data flow from the Trust domain to the DMZ domain
- B. Data flow from the Local domain to the Trust domain
- C. Data flow from Untrust domain to Local domain
- D. Data flow from the Untrust domain to the DMZ domain
Answer: A,B
NEW QUESTION # 368
As shown in the figure, RTA, RTB, RTC, and RTD are in the same AS. IBGP neighbor relationships are established through direct links. RTB and RTC are route reflectors. RTA and RTC are the route reflector clients of RTB. RTD is the route reflector client of RTC, and 10.1.1.0/24 is announced into BGP on RTA, and the Originator ID value of the BGP route received on RTD is updated to ().
Answer:
Explanation:
1.1.1.1
NEW QUESTION # 369
SSH uses asymmetric addition AES and DES to realize the security of data transmission, and uses HMAC to ensure complete data integrity verification.
- A. True
- B. False
Answer: B
NEW QUESTION # 370
In order to avoid inter-area loops, OSPF regulations do not allow routing information to be published directly between two non-backbone areas, and only allow routing information to be published within an area or between a backbone area and a non-backbone area. Therefore, each area border router (ABR) must be connected to the backbone area.
- A. True
- B. False
Answer: A
NEW QUESTION # 371
A router is running the IS-IS, the output information shown in the figure, which of the following statements is true?
- A. The period of the s4/0/0 interface sending llH is 30s
- B. s4/0/0 interface supports IPv6
- C. The Cost value of the s4/0/0 interface is 20
- D. The circuit-leve1 of the s4/0/0 interface is Level-1
Answer: D
NEW QUESTION # 372
In the WLAN network, enable the HSB backup group. If the AP has been online on the main AC, and then add AP information offline on the standby AC, the AP status on the standby AC will be displayed as fault. In this case, 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, and the status of the AP on the AC will be displayed as standby.
- A. True
- B. False
Answer: A
NEW QUESTION # 373
Will setting the Community attribute of the route through the routing policy affect the route selection?
- A. It can be affected indirectly. By setting the Community attribute of the route, the route can be classified, and then different attributes related to route selection can be set according to the category. These attributes only include Loacal_Pre and MED, so as to achieve the purpose of affecting route selection
- B. After the router receives the routing update whose Commmity attribute is No_ Advertise, it will not advertise it outside the local AS.
- C. It can be indirectly affected. By setting the Community attribute of the route, the route can be classified, and then set different route selection-related attributes according to the category, such as Local_Pre, MED, etc., to achieve the purpose of affecting route selection
- D. It cannot be affected, because the Community attribute of the route is a non-transitional attribute and cannot be passed between routers
Answer: C
NEW QUESTION # 374
SDN is a new type of network innovation architecture. Which of the following descriptions about the value of SDN is correct? (Multiple choice)
- A. Shield technical details, reduce network complexity, and reduce operation and maintenance costs
- B. Realize rapid service deployment and shorten service launch time
- C. Realize centralized management and simplify network management and operation and maintenance
- D. Realize automatic tuning and improve network utilization
Answer: A,B,C,D
NEW QUESTION # 375
RSTP redefines the port role, please match the RSTP port role with its function. (Drag and drop questions)
Answer:
Explanation:
NEW QUESTION # 376
As shown in the figure, all routers run IS-IS. R3 is a Level-1 router, R6 is a Leve1-2 router, and the other routers are Level-1-2 routers. What are the types of neighbor relationships between routers? Multiple choice)
Answer:
Explanation:
NEW QUESTION # 377
In a large-scale WLAN three-layer network, which of the following statements about the DHCP server is wrong? (Multiple choices)
- A. In a large-scale WLAN network, it is generally recommended to use the AC as the DHCP server
- B. In a large-scale VLAN network, the AP can obtain the IP address of the AC from the DHCP server through the option60 parameter
- C. In a large WLAN network, it is recommended to deploy an independent DHCP server
- D. In a large-scale WLAN network, the AP can obtain the IP address of the AC from the DHCP server through the option43 parameter
Answer: A,B
NEW QUESTION # 378
Which of the following does not belong to the OSI network management model?
- A. Management Model
- B. Communication Model
- C. Functional Model
- D. Organizational Structure Model
Answer: D
NEW QUESTION # 379
When the payload is an ICMPv6 message, if the extension header is not considered, what is the value of the Next Header field in the IPv6 header?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 380
The Link ID of the third type LSA is:
- A. The destination network segment described
- B. Router ID of the described ABR
- C. Generate the Router ID of this LSAde router
- D. The port IP address of the DR on the network segment where it is located
Answer: A
NEW QUESTION # 381
The MAC address of a certain PC is 5489-98FB-65D8. The administrator wants this PC to obtain the specified IP address 192.168.1.11/24 from the DHCP server. So the command configured by the administrator should be:
- A. dhcp static-bind ip-address 192.168.1.11 24 mac-address 5489-98FB-65D8
- B. dhcp static-bind ip-address 192.168.1.11 mac-address 5489-98FB-65D8
- C. dhcp server static-bind ip-address 192.168.1.11 255.255.255.0 mac-address 5489-98FB-65D8
- D. dhcp server static-bind ip-address 192.168.1.11 mac-address 5489-98FB-65D8
Answer: D
NEW QUESTION # 382
Regarding the description of VRRP load sharing, which one is correct? (Multiple choice)
- A. When configuring priorities, the VRRP masters of the three virtual routers can be on different routers
- B. Multiple virtual routers can be created on one interface of the router, so that the router can be used as a master router in one virtual router, and at the same time as a backup router in other virtual routers.
- C. The load sharing method means that multiple routers undertake services at the same time, so the load sharing method requires two or more virtual routers
- D. Load sharing method refers to the establishment of two or more backup groups, and multiple routers carry services at the same time
Answer: A,D
NEW QUESTION # 383
Which of the following descriptions about CloudFabric intelligent operation and maintenance is wrong?
- A. CloudFabric intelligent operation and maintenance can actively operate and maintain, and automatically troubleshoot
- B. CloudFabric intelligent operation and maintenance uses SNMP protocol to realize automatic operation and maintenance
- C. CloudFabric intelligent operation and maintenance is business-centric
- D. CloudFabric intelligent operation and maintenance can realize second-level data collection through Telemetry
Answer: B
NEW QUESTION # 384
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