[Nov 10, 2021] H12-811-ENU Dumps Full Questions - Exam Study Guide
HCIA-Datacom Free Certification Exam Material from VCE4Plus with 454 Questions
NEW QUESTION 214
How to add AP on AC? (Multiple Choice)
- A. Automatically discover AP
- B. Manually confirm APs in the uncertified list
- C. Add online
- D. Import AP offline
Answer: A,C,D
NEW QUESTION 215
,:: 1/128 is the IPv6 loopback address.
- A. True
- B. False
Answer: A
NEW QUESTION 216
What is the main function of the DHCP DISCOVER message?
- A. The DHCP server is used to respond to the DHCP DISCOVER message, which carries various configuration information
- B. The client is used to find the DHCP server
- C. The client requests configuration confirmation, or renews the lease
- D. The server's confirmation response to the REQUEST message
Answer: B
NEW QUESTION 217
In order to join the wireless network STA needs to obtain wireless network information first. Which of the following messages is used by the STA to actively obtain the SSID information?
- A. Join
- B. Probe
- C. Discovery
- D. Beacon
Answer: B
NEW QUESTION 218
The configuration information of a certain port of the switch is shown in the figure, then the port will strip off the VLAN TAG when sending data frames carrying which VLAN?
- A. 1.4.6
- B. 4.5.6
- C. 4.6
- D. 1.4.5.6
Answer: A
NEW QUESTION 219
Broadly speaking, which of the following does the transmission medium that constitutes the wireless local area network wlan not include?
- A. Ray
- B. Infrared
- C. Radio waves
- D. Laser
Answer: A
NEW QUESTION 220
The IEEE 802.11ac standard only supports the 5GHz frequency band.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 221
The basic header length of IPv6 packets is a fixed value.
- A. True
- B. False
Answer: A
NEW QUESTION 222
The classic network forwarding method is based on router routing table forwarding. The forwarding method of OpenFlow switches is based on flow table forwarding. Which of these two forwarding methods are correct? (Multiple Choice)
- A. The matching method of the flow table is to match the MAC address and IP address of the traffic at the same time
- B. The flow table is variable length. A network device can only have one flow table
- C. The routing table is of fixed length. A device can only have one public routing table
- D. The matching method of the address table is to match the route of the destination network segment with the longest mask
Answer: A,C,D
NEW QUESTION 223
Which of the following statements about the S field in the MPLS packet header are correct? (Multiple choice)
- A. s bit exists in every MPLS packet header
- B. s bit has only 1 bit in frame mode and 2 bit in cell mode
- C. It is used to mark whether there are other labels behind this label, 1 means yes, 0 means no
- D. It is used to mark whether there are other labels behind this label, 0 means yes, 1 means no
Answer: A,D
NEW QUESTION 224
Apply the ACL configured as shown in the figure in Telnet. Only the device with the IP address of 172.16.105.2 is allowed to log in remotely:
#
acl number 2000
rule 5 permit source 172.16.105.2 0
#
- A. True
- B. False
Answer: A
NEW QUESTION 225
Which of the following working modes are supported by Huawei Enterprise AP? (Multiple Choice)
- A. Cloud
- B. FAT
- C. Local
- D. FIT
Answer: B,D
NEW QUESTION 226
By default, what is the STP Forward Delay time in seconds?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 227
Which of the following are not the characteristics of a small-sized campus network?
- A. Fewer users
- B. Wide coverage
- C. Simple network requirements
- D. Simple network level
Answer: B
NEW QUESTION 228
As shown in the figure, RTA uses NAT technology and realizes multiple-to-multiple NAPT address translation by defining an address pool, so that hosts in the private network can access the public network. Suppose that there are only two public IP addresses in the address pool, and they have been assigned to hosts A and B for address conversion, and if host C also wants to access the public network, which of the following description is correct?
- A. RTA converts the source port of host C, and host C can access the public network
- B. Host C cannot be assigned a public network address and cannot access the public network
- C. All hosts can access the public network by using the public network address in turn
- D. RTA assigns the interface address (200.10.10.3) to host C, host C can access the public network
Answer: A
NEW QUESTION 229
After the network administrator uses the TracertRoute function on the router device, in the data packet sent by the router, what is the value of the Protoco1 field in the IPv4 header?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 230
The link aggregation interface can only be used as a Layer 2 interface.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 231
Which information of the data frame does the VLANIF interface use to determine whether to perform Layer 2 or Layer 3 forwarding?
- A. Source IP
- B. Destination MAC
- C. Source MAC
- D. Destination port
Answer: B
NEW QUESTION 232
Complete the ACL configuration shown in the figure on the router RTA, which of the following description is correct?
- A. The VRP system will adjust the sequence number of the first rule to 5 according to the configuration sequence
- B. The VRP system will first match the rule by numbering in sequence deny source 20.1.1.0 0.0.0.255
- C. The VRP system will not adjust the sequence number, but will first match the rule permit source 20.1.1.0 0.0.0.255
- D. Configuration error, the sequence number of the rules must be configured from small to large
Answer: B
NEW QUESTION 233
In the network shown in the figure below, all routers run OSPF protocol. Above the link is the value of the Cost value, then the path for RTA to reach the network 10.0.0.0/8 is:
- A. A-B-D
- B. A-C-D
- C. RTA cannot reach 10.0.0.0/8
- D. A-D
Answer: B
NEW QUESTION 234
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