Huawei HCIA-Datacom V1.0 H12-811_V1.0 Exam Questions

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Total 304 questions
Question 1

Which of the following is the default port number of the Telnet server?



Answer : D

The default port number for Telnet is 23. This standard port assignment allows Telnet clients to connect to Telnet servers, facilitating remote management and troubleshooting tasks on network devices. Ports are preassigned to services to streamline network communication and reduce conflicts.


Question 2

By default, all SNMP versions (SNMPv1, SNMPv2c, and SNMPv3) are supported on Huawei AR G3 series routers.



Answer : A

Huawei AR G3 series routers support all SNMP versions (v1, v2c, and v3) by default.

SNMPv3 provides enhanced security features compared to SNMPv1 and SNMPv2c.

Thus, the correct answer is A (TRUE).


Question 3

Refer to the graphic, 00e0-fc99-9999 is a specific host MAC address learned by a switch through ARP, and the host changes the IP address three times.



Answer : A

In this scenario, the MAC address 00e0-fc99-9999 is associated with multiple IP addresses through dynamic ARP learning, indicating that the host's IP has changed several times. The ARP table on the switch shows multiple entries with different IPs mapped to the same MAC address, which is common when a device frequently updates its IP. As ARP is a dynamic protocol, these entries reflect the device's current and past IP associations. (Reference: HCIA-Datacom Training Material, ARP Operation and IP-MAC Mapping)


Question 4

The TCP protocol uses the three-way handshake mechanism to establish and disable connections. Therefore, TCP supports reliable data transmission.



Answer : A

The TCP protocol ensures reliable data transmission by using a three-way handshake to establish a connection and a four-way handshake to terminate it. This handshake process helps ensure that both parties are synchronized and agree on communication parameters before data transmission begins. Additionally, mechanisms such as sequence numbers and acknowledgments ensure that data is received correctly and in order .


Question 5

When Fit APs go online on an AC, they will necessarily download the system software package from the AC.



Answer : B


Question 6

Refer to the following commands run on GigabitEthernet0/0/1 and GigabitEthernet0/0/2. Which of the following statements are true?



Answer : B, C


Question 7

To provide the information about the IP addresses that a user packet traverses along the path to the destination, which of the following does Tracert record in each expired ICMP TTL packet?



Answer : C

Tracert (Traceroute) works by sending packets with progressively higher TTL (Time-to-Live) values, causing them to expire at each router along the path. When TTL expires, the router sends back an ICMP 'Time Exceeded' message, which includes the source IP address of that router. This allows Tracert to record the IP addresses of each router on the path to the destination.


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Total 304 questions