Jan 06, 2022 Step by Step Guide to Prepare for H12-811 Exam BrainDumps
HCIA-Datacom H12-811 Real Exam Questions and Answers FREE Updated on 2022
NEW QUESTION 23
Regarding the corresponding relationship between the access control list number and type, which of the following description is correct?
- A. The number range of interface-based access control list is 1000-2000
- B. The basic access control list number range is 1000-2999
- C. The access control list number range of the second layer is 4000-4999
- D. The range of advanced access control list numbers is 3000-4000
Answer: C
NEW QUESTION 24
The MAC address table of the existing switch is shown in the figure. Which of the following statements are correct?
- A. The data frame with the source MAC address of 5489-9885-18a8 and the destination MAC address of 5489-989d-1d30 received from the port is forwarded from the Eth0/0/1 port
- B. When the switch restarts, the MAC address learned by port Eth0/0/3 needs to be learned again
- C. When the switch restarts, the MAC address learned by port Eth0/0/2 does not need to be relearned
- D. The data frame with the source MAC address of 5489-9811-0b49 and the destination MAC address of 5489-9894-1d30 received from the port is forwarded from the Eth0/0/2 port
Answer: A
NEW QUESTION 25
Now it is necessary to implement a Python automation script Te1net to the device to view the device running configuration. Which of the following statements is wrong?
- A. Telnetlib can achieve this function.
- B. can use telnet.write(b"display current-configuration \n") to input the command to view the current configuration of the device.
- C. telnet.c1ose() is used after a command entered every time, the function is that the user waits for the switch to return information.
- D. Use telnet.Telnet (host) to connect to the Telnet server.
Answer: C
NEW QUESTION 26
How to add AP on AC? (Multiple Choice)
- A. Add online
- B. Automatically discover AP
- C. Import AP offline
- D. Manually confirm APs in the uncertified list
Answer: A,B,C
NEW QUESTION 27
As the figure shown: (Multiple Choice)
- A. Client3 belongs to VLAN30, and the command for dividing VLAN on the switch is correct
- B. Client2 belongs to VLAN20, and the switch based on the MAC address division command is correct
- C. Client4 belongs to VLAN40, and the command for dividing VLAN on the switch is correct
- D. Client1 belongs to VLAN10, and the command for dividing VLAN on the switch is correct
Answer: B,C,D
NEW QUESTION 28
Which OSPF version below is suitable for IPv6?
- A. OSPFv1
- B. OSPFv2
- C. OSPFv4
- D. OSPFv3
Answer: D
NEW QUESTION 29
In the campus network, network reliability can be improved by using link aggregation and stacking technology.
- A. False
- B. True
Answer: B
NEW QUESTION 30
If the value of the Type/Length field of an Ethernet data frame is 0 x 0800, the length of the upper layer message header carried by this data frame is in the range of 20-60B.
- A. False
- B. TRUE
Answer: B
NEW QUESTION 31
What is the main function of the dynamic routing protocol?
- A. Manage routers
- B. Control router interface status
- C. Generate IP address
- D. Dynamically generate routing entries
Answer: D
NEW QUESTION 32
The last option field of IPv4 is variable-length optional information. What is the maximum length of this field?
- A. 10B
- B. 60B
- C. 20B
- D. 40B
Answer: C
NEW QUESTION 33
How many bits are there in the VLAN ID in the VLAN format defined by IEEE802.1Q?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 34
Through SR (Segment Routing), an explicit path can be easily defined. The nodes in the network only need to maintain the SegmentRouting information to cope with the real-time rapid development of the business. What are the following characteristics of Segment Routing? (Multiple choice)
- A. Adopting source routing technology to provide the ability to quickly exchange text between the network and upper-layer applications
- B. Support the centralized control mode of the controller and the distributed control mode of the transponder at the same time, and provide a balance between centralized control and distributed control
- C. SR (Segment Routing) adopts IP forwarding, no additional maintenance is required for another label forwarding table
- D. By extending the existing protocol (eg IGP), the existing network can better and smoothly evolve
Answer: A,B,D
NEW QUESTION 35
f a windows host is started for the first time, if the IP address is obtained by DHCP, then what is the source IP address of the first packet sent by this host?
- A. 255.255.255.255
- B. 169.254.2.33
- C. 0.0.0.0
- D. 127.0.0.1
Answer: C
NEW QUESTION 36
If the application layer protocol is Te1net, what is the value of the Protoco1 field in the IPv4 header?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 37
Which of the following descriptions about firewalls is wrong?
- A. Firewall can realize access control between different networks
- B. The firewall cannot achieve network address translation
- C. Firewall can realize user identity authentication
- D. Firewall can isolate networks with different security levels
Answer: B
NEW QUESTION 38
Which information of the data frame does the VLANIF interface use to determine whether to perform Layer 2 or Layer 3 forwarding?
- A. Destination port
- B. Destination MAC
- C. Source MAC
- D. Source IP
Answer: B
NEW QUESTION 39
MIB (Management Information Base) is a virtual database that exists only in NMS.
- A. False
- B. True
Answer: A
NEW QUESTION 40
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