Best Preparations of H12-811-ENU Exam 2021 HCIA-Datacom Unlimited 454 Questions
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NEW QUESTION 191
Which of the following IPv6 addresses is a multicast address?
- A. FE80 :: 2E0 : FCFF : FEEF : FEC
- B. FC00 :: 2E0 : FCFF : FEEF : FEC
- C. FF02 :: 2E0 : FCFF : FEEF : FEC
- D. 2000 :: 2E0 : FCFF : FEEF : FEC
Answer: C
NEW QUESTION 192
The route entry 10.0.0.24/29 may be aggregated from which of the following subnet routes? (Multiple Choice)
- A. 10.0.0.23/3o
- B. 10.0.0.26/30
- C. 10.0.0.28/30
- D. 10.0.0.24/30
Answer: C,D
NEW QUESTION 193
As shown in the figure, the correct description of this network topology is ().
- A. There are 12 conflict domains in this network
- B. There are 6 broadcast domains in this network
- C. There are 2 broadcast domains in this network
- D. There are 6 collision domains in this network
Answer: C
NEW QUESTION 194
If the network address of a network is 192.168.1.0, then its broadcast address must be 192.168.1.255.
- A. False
- B. True
Answer: A
NEW QUESTION 195
The routing table is shown in the figure. Which of the following statements is correct? (Multiple choice)
- A. The NextHop of the destination network 10.0.3.3/32 is not directly connected, so the router will not forward packets with the destination IP address of 10.0.3.3.
- B. Router from Ethernet0/0/0 forwarding destination IP address 10.0.2.2 packet
- C. The router forwards data packets with the destination IP address 10.0.3.3 from Ethernet0/0/0
- D. The router forwards data packets with the destination IP address 10.0.12.1 from Ethernet0/0/0
Answer: B,C,D
NEW QUESTION 196
The DHCPv6 server supports providing other configuration information such as DNS server address for the host.
- A. True
- B. False
Answer: A
NEW QUESTION 197
What is the number range of advanced ACL?
- A. 6000~6031
- B. 3000-3999
- C. 4000~ ～ 4999
- D. 2000-2999
Answer: B
NEW QUESTION 198
In the campus network, network reliability can be improved by using link aggregation and stacking technology.
- A. True
- B. False
Answer: A
NEW QUESTION 199
The G0/0/1 interface configuration information of router A is shown in the figure. Which of the following statements is correct? (Multiple choice)
- A. This interface will not forward received FTP packets
- B. This interface can establish OSPF neighbor relationships with other routers
- C. This interface will not forward received SNMP packets
- D. This interface will not forward ICMP packets
Answer: A,C
NEW QUESTION 200
In the network shown in the figure below, when the OSPF neighbor status is stable, what is the neighbor status of Router B and Router C?
- A. Fu11
- B. Attempt
- C. Down
- D. 2-way
Answer: D
NEW QUESTION 201
The last option field of IPv4 is variable-length optional information. What is the maximum length of this field?
- A. 40B
- B. 20B
- C. 60B
- D. 10B
Answer: B
NEW QUESTION 202
As shown in the information in the figure, when learning this switch needs to forward the frame with the destination MAC address of 5489-98ec-f011, which of the following description is correct?
- A. The switch does not find a matching entry in the MAC address table, so it will discard the frame
- B. The switch needs to send a request to discover the device with the MAC address of 5489 98ec-f011
- C. The switch will flood the frame on all ports except the port that received the frame
- D. The switch will send a message that the destination is unreachable to the source device
Answer: C
NEW QUESTION 203
There is no channel overlap in the 14 available frequency bands in the 2.4GHz frequency band.
- A. False
- B. True
Answer: A
NEW QUESTION 204
In the CAPWAP tunnel establishment phase, after the AC receives the Join Request message sent by the AP, the AC will check the validity of the AP. Which of the following is the authentication method supported by the AC? (Multiple choice)
- A. SN certification
- B. Password authentication
- C. Not certified
- D. MAC authentication
Answer: A,B,C,D
NEW QUESTION 205
Using the command mkdir test in the VRP operating platform, the system will create a directory named test.
- A. True
- B. False
Answer: A
NEW QUESTION 206
What are the advantages of using dynamic host configuration protocol DHCP to assign IP addresses? (Multiple choice)
- A. When the configuration information changes (such as DNS), only the administrator needs to modify it on the DHCP server to facilitate unified management
- B. Heavy workload and difficult to manage
- C. Avoid IP address conflicts
- D. Reuse of IP address can be realized
Answer: A,C,D
NEW QUESTION 207
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