HCIA-Datacom V1.0 Exam
Last Update Nov 30, 2025
Total Questions : 350
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Refer to the following configuration of an interface on a switch. What is the PVID of the interface?
interface GigabitEthernet0/0/1
port hybrid tagged vlan 2 to 3 100
port hybrid untagged vlan 4 6
Refer to the following configuration of a switch interface. Which of the following statements is false?
interface GigabitEthernet0/0/1
port link-type trunk
port trunk pvid vlan 200
port trunk allow-pass vlan 100
(The administrator performs the configuration shown in the figure on a router, and a host is connected to Gi/0/0 of the router. Which of the following statements is true about the IP address obtained by the host through DHCP?)
As shown in the figure, if host A has the ARP cache of host B, host A can ping host B.
Which of the following traffic can be filtered by an advanced ACL on a Huawei device?
Which of the following statements is true about root bridge election in STP?
When a switch receives a unicast data frame, if the destination MAC address of the data frame can be found in the MAC address table of the switch, the data frame is definitely forwarded through the port corresponding to the MAC address.
When the ACL in the following figure is configured on a Telnet server, only the device with an IP address of 172.16.105.2 can remotely log in to the Telnet server.
bash
Copy code
acl number 2000
rule 5 permit source 172.16.105.2 0
The network administrator performs the configuration shown in the following figure on RTA. If a user needs to be authenticated in the authentication domain named huawei, which of the following statements is true?
If the IPv4 address of a host on a LAN is 192.168.1.1/30, the host will process IP packets with specific destination IP addresses. Which of the following IP addresses may be the destination IP addresses?
An administrator wishes to manage the router in the remote branch office, which method can be used?
In STP, which of the following items may affect the selection of the root switch?
What is the total length of the interface ID in each link-local unicast address?
Which of the following packets are exchanged between STAs and an AP to obtain the AP's SSID before association with the AP?
If the network administrator assigns the IPv4 address 192.168.1.1/28 to a host on the network, how many hosts can be added to the network where the host resides?
If the MAC address of an interface is 00E0-FCEF-0FEC, the corresponding EUI-64 address is ( ).
The users who log on the router through Telnet are not permitted to configure an IP address. What is the possible reason?
For an Eth-Trunk in LACP mode, what is the default LACP system priority of a Huawei switch?
The CAPWAP protocol defines the communication standard between ACs and APs. Which of the following statements about CAPWAP is true?
You can run the user-interface maximum-vty command to configure the maximum number of users who can log in to the device through Telnet simultaneously.
Which of the following statements regarding static routing and dynamic routing is incorrect?
On the VRP, when the mkdir test command is run, the system creates a directory named test.
If the transport-layer protocol is UDP, the value of the "Protocol" field at the network layer is 6.
The rules in an ACL may overlap. If packets match the rules with loose conditions, the later ACL rules are not processed. In this case, packets cannot match the rules with strict conditions. Therefore, the rules with strict conditions must be arranged in front lines and those with loose conditions must be arranged towards the end.
According to the VTY user interface configuration shown in the following figure, the user level is set to 3.
A routing entry contains multiple fields. Which of the following statements about these fields is false?
When an Ethernet frame is received by an interface on a Layer 2 Ethernet switch, which field is used to generate an entry in the MAC address table?
A switch needs to forward a frame with the destination MAC address 5489-98EC-F011. Refer to the display mac-address command output. Which of the following statements is true?
(Which of the following statements about IPv6 anycast addresses are true?)
Which of the following BIDs cannot be contained in a configuration BPDU sent by a switch?
If the value of the "Type/Length" field of an Ethernet data frame is 0x0800, the length range of the upper-layer packet header carried by the data frame is from 20B to 60B.
Which of the following parameters is used to elect the root bridge in STP?
After an Eth-Trunk in LACP mode is created, devices on both ends send LACPDUs to elect the Actor. Which of the following parameters in LACPDUs determine the Actor election?
Which of the following commands is used to display the CPU usage of a router?
Assuming that an administrator is running the command shown in the figure on an AR2200 router, which of the following statements about the configuration is true?
Warning: The action will delete the saved configuration in the device.
The configuration will be erased to reconfigure. Continue? [Y/N]:
Refer to the following figure of the ACL configured on a router. Which of the following statements is true?
nginx
CopyEdit
acl number 2000
rule 5 permit source 192.168.1.1 0
rule 10 deny source 192.168.1.1 0
On Huawei routers, which of the following is the default preference of static routing?
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?
On the network shown in the figure, router A adopts link aggregation in manual load balancing mode, and G0/0/1 and G0/0/2 are added to link aggregation group (LAG) 1. Which of the following statements is false about Eth-Trunk 1 on router A?
An ACL is essentially a packet filter. An ACL takes effect only after it is applied to a service module.
UDP does not guarantee data transmission reliability and does not provide packet sorting and traffic control functions. It is suitable for the traffic that has low requirements for data transmission reliability, but high requirements for the transmission speed and delay.
Which of the following is the default value of the Router Dead Interval field in OSPF Hello packets on a broadcast network?
Which of the following commands can switch a view from the system view to the user view?
Which of the following parameters is not contained in STP configuration BPDUs?
Which of the following statements are true about the shortcut keys of the Versatile Routing Platform (VRP)?
As shown in the figure, router A has successfully telneted to router B using 10.0.12.2. Which of the following operations will interrupt the Telnet session between router A and router B?
When the host accesses the web service of the server, the value of the "Protocol" field at the network layer is 6.
In the following figure, all links are Ethernet links, and all interfaces on the routers are running OSPF. Given this, how many DRs will be elected on this network?
On an STP-enabled switch, a port in the forwarding state can receive BPDU packets.
On the network shown in the figure, HOST A and HOST B are required to communicate with each other across VLANs through one-armed routing. To satisfy this requirement, which of the
following commands needs to be performed on G0/0/1.1 of RTA?
In a broadcast address, all host bits are set to 1, and a broadcast address can be used as a host address.
Which of the following is not a common network layer in a midsize campus network?
When a host uses the stateless address autoconfiguration solution to obtain an IPv6 address, the host cannot obtain the DNS server address.
On Huawei AR G3 Series routers, which authentication modes does AAA support?
On the command line interface of Huawei AR routers, the role of the Save command is to save the current system time.
On the network shown in the figure, host A logs in to router A through Telnet and obtains the configuration file of router B through FTP on the remote CLI. How many TCP connections exist on router A?
On the Huawei VRP, what is the default preference of different route types, in descending order?
As shown in the figure, all switches run STP. Assume that the path cost of all ports is 200. What is the root path cost contained in the configuration BPDU received by G0/0/4 on SWD?
Refer to the following configuration of an interface on a switch. For which VLAN does the interface transmit tagged data frames?
interface GigabitEthernet0/0/1
port hybrid tagged vlan 2 to 3 100
port hybrid untagged vlan 4 6
The authentication, authorization, and accounting schemes and HWTACACS or RADIUS server templates created on AR routers take effect only after being applied to a domain.
Which of the following are basic parameters for configuring a static route?
What is the length range of an Ethernet_II frame that contains an Ethernet header?
Which of the following OSPF packets can be sent to request the locally missing LSAs?
On the VRP platform, which of the following parameters can be used together with the "ping" command to specify the source address of an echo request message?
Dynamic routing protocols can automatically adapt to network topology changes.
The country code configuration affects the actual transmission frequency and maximum transmission power.
The tree topology is a hierarchical star topology, facilitating network expansion. A consequence of this topology is that faults on a node at a higher layer are more severe.
RSTP uses the proposal/agreement mechanism to shorten the time that an upstream port waits before transitioning to the Forwarding state, but no temporary loop occurs. Why?
Which of the following descriptions regarding the STP forwarding state is incorrect?
Which of the following statements is true about the Forward Delay timer of STP?
Which of the following configurations can prevent Host A and Host B from communicating with each other?
Which of the following is correct regarding the configuration of the trunk port and access port on a switch?
When an AP and an AC are located on different Layer 3 networks, which of the following methods is recommended for the AP when discovering the AC?
Link aggregation and stacking technologies can be used to enhance network reliability on a campus network.
An administrator wishes to configure a floating static route. In order to successfully achieve this, which operation should be performed?
Which of the following WLAN security policies support open link authentication?
Static NAT can only implement one-to-one mapping between private and public addresses.
TESTED 30 Nov 2025
