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PDF Exam Material 2022 Realistic H12-811_V1.0 Dumps Questions
NEW QUESTION 198
What is correct about the dynamic MAC address table?
- A. The dynamic MAC table entries obtained through the source MAC address learning in the message will age
- B. After the device restarts, the previous dynamic entries will be lost
- C. After the device restarts, the previously saved entries will not be lost
- D. By viewing the number of specified dynamic MAC address table entries, you can get the number of users communicating under the interface
Answer: A,B,D
NEW QUESTION 199
In the MAC address table of the switch, which of the following entries will not age?
- A. Static MAC address table entry
- B. Dynamic MAC address table entry
- C. Device MAC address table entry
- D. Port MAC address table entry
Answer: A
NEW QUESTION 200
Network administrators use Ping to test the connectivity of the network. Which of the following protocols may be used in this process?
- A. UDP
- B. ARP
- C. TCP
- D. ICMP
Answer: B,D
NEW QUESTION 201
Which layers are not included in the TCP/IP model?
- A. Network layer
- B. Application layer
- C. Presentation layer
- D. Transport layer
Answer: A
NEW QUESTION 202
Only the WPA2-PSK security policy supports the use of TKIP for data encryption.
- A. True
- B. False
Answer: B
NEW QUESTION 203
When the switch receives a unicast data frame, it will look up the destination MAC address in the MAC surface. Which of the following statements is wrong?
- A. If the MAC address is found, and the port corresponding to the MAC address in the MAC address table is not the port where the frame enters the switch, the switch performs the forwarding operation
- B. If the MAC address cannot be found, the switch will discard it
- C. If the MAC address cannot be found, the switch performs flooding operation
- D. If the MAC address is found, and the port corresponding to the MAC address in the MAC address table is the port where the frame enters the switch, the switch performs the discard operation
Answer: B
NEW QUESTION 204
The network administrator finds that a certain port of the switch has learned the MAC address, but it cannot forward data frames. Which of the following working statuses is this port in?
- A. Listening
- B. Disabled
- C. Blocking
- D. Learning
Answer: D
NEW QUESTION 205
If the administrator wants to update the VRP version of Huawei routers, the correct method is ().
- A. The administrator configures the router as a TFTP server and transmits VRP software through TFTP
- B. The administrator configures the router as an FTP client and transfers the VRP software through FTP
- C. The administrator configures the router as an FTP server and transfers the VRP software through FTP
- D. The administrator configures the router as a TFTP client and transmits VRP software through TFTP
Answer: B,C,D
NEW QUESTION 206
By default, in the SNMP protocol, which port number does the agent process use to send alarm messages to the NMS?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 207
The load sharing mode at both ends of the Eth-Trunk can be inconsistent.
- A. True
- B. False
Answer: A
NEW QUESTION 208
On the VRP platform, the priority of the default protocol for direct routing, static routing, RIP, and OSPF routing in the area is from high to low.
- A. Direct routing, RIP, static routing, OSPF
- B. Direct routing, static routing, RIP, OSPF
- C. Direct routing, OSPF, static routing, RIP
- D. Direct routing, OSPF, RIP, static routing
Answer: C
NEW QUESTION 209
Which of the following fields does the MPLS header include?
- A. Tos
- B. TTL
- C. EXP
- D. Label
Answer: B,C,D
NEW QUESTION 210
In the network shown in the figure below, the host logs in to router A through Telnet, and then obtains the configuration file of router B through FTP on the remote interface. How many TCP connections exist on router A at this time?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 211
Which of the following statements about RA and RS messages in IPv6 are correct?
- A. RS is used to request address prefix information
- B. RS is used to reply address prefix information
- C. RA is used to reply address prefix information
- D. RA is used to request address prefix information
Answer: A,C
NEW QUESTION 212
If the Length/Type of an Ethernet data frame is equal to 0x8100, what might be the payload of this data frame?
- A. UDP data
- B. ARP packet
- C. TCP data segment
- D. ICMP message
Answer: A,B,C,D
NEW QUESTION 213
In the switching network shown in the figure below, all switches are running the STP protocol. When the topology is stable, modify the configuration of the BPDU sending cycle on which of the following switches.
Can affect the sending cycle of SWD configuration BPDUs.
- A. SWD
- B. SWC
- C. SWB
- D. SWA
Answer: D
NEW QUESTION 214
For switches running the STP protocol, the port needs to wait for the forwarding delay in the Learning state before it can be converted to the Forwarding state.
- A. True
- B. False
Answer: A
NEW QUESTION 215
What is wrong in the following statement about the main functions of the router?
- A. Guide data forwarding according to the routing table
- B. Realize mutual communication between devices on the same network segment
- C. Establish routing tables through multiple protocols
- D. Forwarding according to the source IP address of the received data packet
Answer: B,D
NEW QUESTION 216
In an IPv4 network, AP supports static and DHCP methods to obtain IP addresses.
- A. True
- B. False
Answer: A
NEW QUESTION 217
On the broadcast network, both DR and BDR use the multicast address 224.0.0.6 to receive link state update messages.
- A. True
- B. False
Answer: B
NEW QUESTION 218
Which of the following statements are correct about the VLAN design and planning of the campus network?
- A. Reserve a certain number of VLANs to facilitate subsequent expansion
- B. The most commonly used VLAN division method is based on port division
- C. It is recommended to assign VLAN numbers consecutively to ensure the rational use of VLAN resources
- D. The most commonly used method of division is based on MAC
Answer: A,B,C
NEW QUESTION 219
Broadly speaking, the transmission medium that constitutes a wireless local area network WLAN does not include?
- A. Laser
- B. Ray
- C. Infrared
- D. Radio waves
Answer: A
NEW QUESTION 220
For the description of the PPP link establishment process, the following statement is wrong ().
- A. After the NCP negotiation is successful, the PPP link will maintain the communication state and enter the Terminate phase
- B. In the Establish phase, the PPP link conducts LCP parameter negotiation. The negotiation content includes the maximum receiving unit MRU, authentication method, magic word and other options
- C. In the Network phase, the PPP link performs NCP negotiation. Select and configure a network layer protocol through NCP negotiation, and negotiate network layer parameters
- D. PPP link supports half-duplex and full-duplex modes
Answer: A,D
NEW QUESTION 221
How to enter the view of OSPF area 0 in the VRP operating system?
- A. [Huawei-ospf-1] area 0.0.0.0
- B. [Huawei-ospf-1] area 0 enable
- C. ?Huawei-ospf-1?area 0
- D. ?Huawei?ospf area 0
Answer: A,C
NEW QUESTION 222
If the Ethernet data frame Length/Type=0x0806, which of the following statements is correct?
- A. The destination MAC address of this data frame may be FFFF-FFFF-FFFFF
- B. The source MAC address of this data frame must not be FFFF-FFFF-FFFFF
- C. This data frame is an IEEE802.3 frame
- D. This data frame is EthernetII frame
Answer: A,B,D
NEW QUESTION 223
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