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HCIA-Datacom Dumps H12-811 Exam for Full Questions - Exam Study Guide
NEW QUESTION 170
The administrator cannot log in to the Huawei router through Telnett, but other administrators can log in normally, so which of the following are the possible reasons? (Multiple Choice)
- A. The Te1net service of the AR2200 router has been disabled
- B. The administrator user account has been disabled
- C. The administrator user account has been deleted
- D. The authority level of the administrator user account has been modified to 0
Answer: B,C
NEW QUESTION 171
What kind of message does the OSPF protocol use to confirm the received LSU message?
- A. LSACK
- B. LSR
- C. LSU
- D. LSA
Answer: A
NEW QUESTION 172
As shown in the figure, the switch runs STP with default parameters, which of the following ports will be elected as the designated port?
- A. HUB's G0/0/1 port
- B. G0/0/1 port of switch A
- C. Port G0/0/2 of switch A
- D. HUB's G0/0/2 port
Answer: B
NEW QUESTION 173
On the broadcast network, both DR and BDR use the multicast address 224.0.0.6 to receive link state update messages.
- A. False
- B. True
Answer: A
NEW QUESTION 174
Which of the following characteristics does the OSPF protocol have? (Multiple Choice)
- A. Trigger an update
- B. Easy to produce routing loops
- C. Support the division of areas
- D. Calculate the shortest path by number
Answer: A,C
NEW QUESTION 175
The output information of the link aggregation port of a certain switch is as follows. If you want to delete Eth-Trunk 1, which of the following commands is correct?
- A. inte GigabitEthernet 0./0/2 Undo eth-trunk Quit Undo interface eth-trunk 1
- B. inte GigabitEthernet 0./0/1 Undo eth-trunk Quit inte GigabitEthernet 0./0/2 Undo eth-trunk Quit
- C. inte GigabitEthernet 0./0/1 Undo eth-trunk Quit Undo interface eth-trunk 1
- D. undo interface Eth-trunk 1
Answer: D
NEW QUESTION 176
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 177
In the network shown in the figure below, the host has an ARP cache, and host A sends a packet to host B.
What are the destination MAC and destination IP of this packet?
- A. MAC-D,11.0.12.1
- B. MAC-A,11.0.12.1
- C. MAC-C,10.0.12.2
- D. MAC-B,11.0.12.1
Answer: A
NEW QUESTION 178
Regarding the control plane of the device, which of the following statements is correct? (Multiple choice)
- A. The control plane is responsible for the interaction of routing protocols between devices
- B. The control plane is responsible for directing data forwarding
- C. The control plane is responsible for generating the IP routing table
- D. The control plane provides equipment monitoring capabilities
Answer: A,C,D
NEW QUESTION 179
Which of the following statements about the S field in the MPLS packet header are correct? (Multiple choice)
- A. It is used to mark whether there are other labels behind this label, 1 means yes, 0 means no
- 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, 0 means yes, 1 means no
- D. s bit exists in every MPLS packet header
Answer: C,D
NEW QUESTION 180
As shown in the figure below, which of the following statements are correct?
- A. The following entry 10.0.12.5 MAC-B exists in the ARP cache of host A
- B. The broadcast address of host A and host B are the same
- C. Host A can ping host B
- D. Host A and Host B cannot obtain each other's MAC address
Answer: D
NEW QUESTION 181
ip route-static 10.0.12.0 255.255.255.0 192.168.1.1, which description about this command is correct?
- A. This command configures a route to the 192.168.1.1 network
- B. This command configures a route to the 10.0.12.0 network
- C. If the router learns a router with the same destination network as this route through other protocols, the router will prefer this route
- D. The priority of this route is 100
Answer: B
NEW QUESTION 182
The IPv6 protocol uses NS and NA packets for duplicate address detection (DAD).
- A. True
- B. False
Answer: A
NEW QUESTION 183
If the Ethernet data frame Length/Type=0X0806, which of the following statement is correct? (Multiple choice)
- A. The source MAC address of the data frame must not be FFFF-FFFF-FFFF
- B. The destination MAC address of the data frame may be FFFF-FFFF-FFFF
- C. The data frame is an IEEE 802.3 frame
- D. The data frame is an Ethernet II frame
Answer: A,D
NEW QUESTION 184
As shown in the figure below, the MAC address table of SWA is as follows. The switch can't learn the MAC address of HOST A all the time. Which of the following is impossible?
- A. The G0/0/1 port of the switch is set to ACCESS mode
- B. SWA turns off the MAC address learning function of the VLAN to which host A belongs
- C. HOST A did not send any data frames
- D. The G0/0/1 port of the switch has disabled MAC address learning
Answer: A
NEW QUESTION 185
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. Destination port
- D. Source MAC
Answer: B
NEW QUESTION 186
A device has been configured to complete the Telnet configuration. The device login address is 10.1.1.10. The Telnet user name is admin and the password is Huawei@123. Which of the following is the correct way to log in to this device using telnetlib?
- A. telnetlib.Telnet （ 10.1.1.0 )
- B. telnetlib.Telnet （ 10.1.1.0,23,admin,Huawei@123 )
- C. telnetlib.Telnet （ 10.1.1.0,23, Huawei@123 )
- D. telnetlib.Telnet （ 10.1.1.0,admin )
Answer: B
NEW QUESTION 187
After the administrator successfully logs in to the router through Telnet, and finds that the router's interface IP address cannot be allocated, the possible reasons are ()
- A. The administrator uses the telnet terminal software to prohibit the corresponding operation
- B. The Telnet user authentication mode is incorrectly configured
- C. The Telnet user level is incorrectly configured
- D. SNMP parameter is incorrectly configured
Answer: C
NEW QUESTION 188
In which of the following network types does the OSPF protocol need to elect DR and BDR? (Multiple choice)
- A. NBMA
- B. Point to multipoint
- C. Broadcast type
- D. Point-to-point type
Answer: A,C
NEW QUESTION 189
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