HCIA DATACOM 2025 - 2

The IPV6 address 2001:ABEF:224E:FFE2:BCC0:CD00:DDBE:8D58 cannot be abbreviated. True. False.

The CAPWAP protocol specifies the communication standard between AC and AP. Which of the following statements about the CAPWAP protocol is correct?. CAPWAP is an application layer protocol based on TCP transmission. AP can encapsulate the user's data message in CAPWAPI and forward it to AC. In order to establish a CAPWAP tunnel, FIT AP can only discover AC through broadcast messages. In order to reduce the burden on A, CAPWAP uses a tunnel to transmit control messages and data messages at the same time.

What kind of message does the OSPF protocol use to confirm the received LSU message?. LSU. LSA. LSR. LSACK.

In the following options, the necessary technology to enable a host with an IP address of 10.0.0.1 to access the Internet is. NAT. Route import. Dynamic routing. Static routing.

Which of the following features does the default VLAN in the Layer 2 Ethernet switch have?. By default, all ports of the switch are member ports of the default VLAN. The default VLAN must be created before it can be assigned a port. The IP address configured on the switch will only be applied to the member ports of the default VLAN. The default VLAN cannot be deleted manually.

Virtualization is the foundation of NFV. Which of the following statements about the characteristics of virtualization is correct?. Partition: Multiple virtual machines can be run on a single physical server at the same time. Isolation: Virtual machines on the same physical server are isolated from each other. Hardware independence: Virtual machines and hardware are decoupled, and virtual machines can be migrated between servers. Encapsulation: All virtual machines share the operating system, and the encapsulation is realized through the namespace.

VRP operating system commands are divided into four levels: access level, monitoring level, configuration level, and management level. Which level can run various business configuration commands but cannot operate the file system?. Management level. Monitoring level. Configuration level. Access level.

In order to ensure that the same data stream is forwarded on the same physical link, which load sharing method does Eth-Trunk use?. Load sharing based on application layer information. Load sharing based on the inbound interface of the packet. Packet-based load sharing. Flow-based load sharing.

In the network shown in the figure below, when the 0$PF neighbor status is stable. What is the neighbor status of Router B and Router C?. Full. 2-way. Attempt. Down.

Which of the following advantages does stacking and clustering technology have?. Simplify device management, just manage one logical device. Number of expansion ports. Can deploy link aggregation across physical devices. Effectively avoid single points of failure.

If the ipv4 address of a host in the LAN is 192.168.1.1/30, which of the following IP addresses will be processed by the host as the destination address?. 192.168.1.1. 255.255.255.255. 192.168.1.2. 192.168.1.3.

When Huawei switches run STP, the priority of the switch is () by default. 4096. 32768. 16384. 8192.

Which of the following IPv6 addresses can be abbreviated as 2FFF:DAC:ABEF::CDAA:732?. 2FFF:DAC0:ABEF:0000:0000:0000:CDAA:0732. 2FFF:0DAC:ABEF:0000:0000:0000:CDAA:7320. 2FFF: 0DAC: ABEF: 0000: 0000: CDAA: 0732. 2FFF:0DAC:ABEF:0000:0000:0000:CDAA:0732.

Which of the following port states does the RSTP protocol include?. Discarding. Forwarding. Listening. Learning.

Which of the following refers to network communication?. Download emails from the company's mailbox to your computer. Use a computer to visit the company's official website. Use instant messaging software (eg, QQ, WeChat) to chat with friends. Use computer to watch videos online.

Which of the following statements about static routing is wrong?. Manual configuration by the network administrator. Cannot automatically adapt to changes in network topology. Low system performance requirements. Routing information needs to be exchanged between routers.

The Tracert diagnostic tool records the () of each ICMP timeout message, so that it can provide the user with the IP address through which the message reaches the destination. Source IP address. Destination port. Source port. Destination IP address.

In the broadcast network, which routers will a DRother router exchange link status information with?. DR Other. BDR. All ospf neighbors. DR.

Which of the following authentication methods do not need to enter a user name and password. authentication-mode none. authentication-mode local. authentication-mode hwtacacs. authorization-mode hwtacacs.

The switch becomes a logical switch after stacking and clustering, and Eth-Trunk across physical devices can be deployed to improve network reliability. True. False.

Apply the ACL configured as follows 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 #. True. False.

What is the IEEE802.11 standard corresponding to Wi-Fi6?. 802.11au. 802.11at. 802.11ac. 802.11ax.

Trunk type ports and Hybrid type ports handle the same way when receiving data frames. True. False.

The network structure and OSPF partition are shown in the figure. Except for RTA in the figure, the routers RTB, RTC and RTD are all ABR routers.(True or False). False. True.

The MAC address table of a certain switch is shown in the figure. If the switch receives a data frame with the destination MAC address 5489-9811-0b49 from the Eth0/0/2 port, which of the following statements is correct?. Forward this data frame from Eth0/0/2 port. Discard this data frame. Forward this data frame from Eth0/0/3 port. lood the data frame out.

The MAC address table of the existing switch is shown in the figure. Which of the following statements are correct?. The data frame with the source MAC address of 5489-9885-18a8 and the destination MAC address of 5489-989d-1d30 received from the port is forwarded from the Eth0/0/1 port. When the switch restarts, the MAC address learned by port Eth0/0/3 needs to be learned again. When the switch restarts, the MAC address learned by port Eth0/0/2 does not need to be relearned. The data frame with the source MAC address of 5489-9811-0b49 and the destination MAC address of 5489-9894-1d30 received from the port is forwarded from the Eth0/0/2 port.

On the network shown in the figure, the router receives a data packet with the destination IP address 11.0.12.1 from Host A. After the packet is forwarded by the router, which of the following are the destination MAC address and destination IP address of the data packet?. MAC-C, 11.0.12.1. MAC-D, 11.0.12.1. MAC-B, 11.0.12.1. MAC-D, 10.0.12.2.

Following a failure of services in the network, an administrator discovered that the configuration in one of the enterprise routers had been changed. What actions can be taken by the administrator to prevent further changes?. The administrator should configure an ACL to allow only the administrator to manage the router. The administrator should configure port-security on the router. The administrator should limit access by setting the login privilege of users to level 0. The administrator should configure AAA to manage user authorization on the router.

The Priority field in a VLAN tag can be used to identify the priority of a data frame. What is the value range of the field?. 0 to 3. 0 to 15. 0 to 7. 0 to 63.

Refer to the following configuration of an interface on a switch. For which VLAN does the interface remove VLAN tags before forwarding data frames? interface GigabitEthernet0/0/1 port link-type trunk port trunk pvid vlan 10 port trunk allow-pass vlan 10 20 30 40. 30. 40. 20. 10.

In a broadcast address, all host bits are set to 1, and a broadcast address can be used as a host address. True. False.

What are the components of the OSI reference model from top to bottom?. Application layer, presentation layer, session layer, network layer, transport layer, data link layer, and physical layer. Application layer, presentation layer, session layer, transport layer, network layer, data link layer, and physical layer. Application layer, transport layer, network layer, data link layer, and physical layer. Application layer, session layer, presentation layer, transport layer, network layer, data link layer, and physical layer.

Which SNMP version focuses on two main aspects, namely security and administration? The security aspect is addressed by offering both strong authentication and data encryption for privacy. The administration aspect is focused on two parts, namely notification originators and proxy forwarders. SNMPv2. SNMPv2c. SNMPv3. SNMPv1.

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?. -d. -n. -a. -s.

Which of the following planes does a network device have?. Control plane. Management plane. Data plane. Service plane.

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?. 200. 600. 400. 0.

Which of the following statements about switches is false?. A switch can provide network access services for terminals such as PCs and servers. A switch can exchange data frames. A switch is typically deployed as an egress device of a network. A switch usually works at the data link layer.

Which of the following statements about static routes on Huawei devices is false?. The default preference value of a static route is 60. When the preference value of a static route is 0, this static route is selected as the optimal route. The cost of a static route cannot be changed. The preference value of a static route is in the range 1 to 255.

Loops may cause broadcast storms on a Layer 2 network. True. False.

On the network shown in the following figure, assuming that SWA, SWB, and SWC retain factory defaults, which of the following ports will be selected as a designated port?. G0/0/2 on SWC. G0/0/3 on SWA. G0/0/1 on SWB. G0/0/1 on SWC.

Which of the following are advantages of stacking and CSS (Cluster Switch System) technologies?. The inter-chassis Eth-Trunk can be deployed. Devices are virtualized into one logical device, simplifying device management. They increase the number of ports. They effectively prevent single points of failure.

For STP, the Message Age in the configuration BPDUs sent by the root bridge is 0. True. False.

If Proto of a route displayed in the routing table is OSPF, the preference of the route must be 10. True. False.

On a Layer 2 WLAN, STAs use an AC as their gateway. True. False.

Which of the following configurations can prevent Host A and Host B from communicating with each other?. acl number 2000 rule 5 deny source 100.0.12.0 0.0.0.255 interface GigabitEthernet0/0/1 traffic-filter inbound acl 2000. acl number 2000 rule 5 deny source 100.0.12.0 0.0.0.255 interface GigabitEthernet0/0/2 traffic-filter inbound acl 2000. acl number 2000 rule 5 deny source 100.0.12.0 0.0.0.255 interface GigabitEthernet0/0/3 traffic-filter inbound acl 2000. acl number 2000 rule 5 deny source 100.0.12.0 0.0.0.255 interface GigabitEthernet0/0/1 traffic-filter outbound acl 2000.

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?. 1. 3. 4. 2.

(An Eth-Trunk interface can be used only as a Layer 2 interface.). True. False.

(Which of the following statements about IPv6 anycast addresses are true?). Packets destined for an anycast address are sent to the nearest interface identified based on the routing distance. IPv6 anycast addresses implement load balancing for services. Anycast and unicast addresses use the same address space. IPv6 anycast addresses provide redundancy functions for services.

What is the TPID value defined by IEEE 802.1Q?. 0x7200. 0x9100. 0x8100. 0x8200.

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?. Source port. Destination IP address. Source IP address. Destination port.

The CAPWAP protocol defines the communication standard between ACs and APs. Which of the following statements about CAPWAP is true?. To reduce the load on APs, CAPWAP uses a tunnel to transmit both control and data packets. To establish a CAPWAP tunnel, a Fit AP can discover an AC only by broadcasting packets. APs encapsulate user data packets using CAPWAP and send them to an AC. CAPWAP is an application-layer protocol based on TCP transmission.

In RSTP, an edge port becomes a common STP port after receiving a configuration BPDU. True. False.

A Layer 2 ACL can match information such as the source MAC address, destination MAC address, source IP address, and destination IP address. True. False.

Which of the following information is displayed when an entered command is incomplete on the Versatile Routing Platform (VRP)?. Error: Wrong parameter found at 'A' position. Error: Incomplete command found at 'A' position. Error: Too many parameters found at 'A' position. Error: Ambiguous command found at 'A' position.

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?. 13. 15. 14. 12.

Making a call on a landline telephone is a type of network communication. True. False.

When the host accesses the web service of the server, the value of the "Protocol" field at the network layer is 6. True. False.

Which of the following statements about hybrid interfaces is true?. Hybrid interfaces can remove VLAN tags from some outgoing VLAN frames. Hybrid interfaces do not require PVIDs. Hybrid interfaces must carry VLAN tags when sending data frames. Hybrid interfaces receive only data frames with VLAN tags.

Refer to the captured three packets shown in the figure. Which of the following statements is false?. The Telnet client uses port 50190 to connect to the server. The three packets represent the three-way handshake process of TCP. The IP address of the Telnet server is 10.0.12.1, and the IP address of the Telnet client is 10.0.12.2. None of the three packets contains application-layer data.

Which of the following parts compose SNMP?. Management Information Base (MIB). Managed object. Agent process. NMS.

An administrator wishes to manage the router in the remote branch office, which method can be used?. Console Connection. FTP. Telnet. DHCP.

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. True. False.

The router ID of the OSPF-enabled router must be the same as the IP address of an interface on the router. True. False.

When a host uses the stateless address autoconfiguration solution to obtain an IPv6 address, the host cannot obtain the DNS server address. True. False.

Which of the following are features of the OSPF protocol?. The shortest path is calculated based on the number of hops. Triggered update is supported. Routing loops are likely to occur. Area division is supported.

Which of the following protocols can be used to prevent Layer 2 loops on a campus network?. SNMP. RSTP. NAT. OSPF.

Which extension headers are supported by IPv6 packets?. VLAN extension header. Fragment extension header. Destination Options header. Hop-by-Hop Options header.

(When a network engineer enters a command, the following information is displayed: Error: Unrecognized command found at 'A' position. Which of the following statements is true about such information?). The entered parameter is not specified. The entered command is incomplete. The parameter type is incorrect. No keyword is found.

What is the length range of an Ethernet_II frame that contains an Ethernet header?. 64-1518 bytes. 60-1560 bytes. 64-1500 bytes. 46-1500 bytes.

< Huawei > system-view [Huawei]command-privilege level 3 view user save Refer to the command output. What is the result of the shown command?. The command adjusts the save command in the user view to privilege level 3. The command adjusts the save command of a user to privilege level 3. The command adjusts the user view command privilege level to 3, and saves the configuration. The command adjusts the privilege level of a user to 3, and saves the configuration.

The following figure shows the configuration of a sub-interface on a router. For which VLAN does the sub-interface receive tagged data frames? # Interface GigabitEthernet0/0/2.80 Dot1q termination vid 100 Ip address 10.0.21.1 255.255.255.0 arp broadcast enable #. 1. 20. 80. 100.

Which of the following packets is used by network devices running SNMPv1 to proactively send alarm information?. Response. Trap. Get-Next Request. Get-Request.

Which of the following methods is not supported by the Versatile Routing Platform (VRP) to configure a router?. Configure the router through FTP. Configure the router through the mini USB port. Configure the router through Telnet. Configure the router through the console port.

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. True. False.

Which of the following parameters is not contained in STP configuration BPDUs?. Bridge ID. VLAN ID. Root ID. Port ID.

Which of the following statements about the network shown in the figure is true?. The sub-interface of Router B cannot learn the MAC address of the sub-interface of Router A. The sub-interface of Router A cannot learn the MAC address of the sub-interface of Router B. The sub-interface numbers of Router A and Router B are different, so Router A and Router B cannot communicate with each other. The host at 10.0.12.1 can ping the host at 10.0.12.2.

As specified by the RSTP protocol, when a root port fails, which type of port will function as a new root port and enter the forwarding state without any delay?. Alternate Port. Forwarding Port. Backup Port. Edge Port.

The router ID of the OSPF process takes effect immediately after being changed. True. False.

The priority of static routes cannot be manually specified. True. False.

What is the TPID value defined by IEEE 802.1Q?. 0x9100. 0x8100. 0x8200. 0x7200.

Which of the following fields are contained in an ARP packet?. Source Protocol Address. Source Hardware Address. Hardware Type. Operation Code.

In the case of Huawei routers, what is the "-i" parameter in a Ping command issued on a VRP operating system used to set?. Destination IP address for receiving an Echo Reply packet. Interface for receiving an Echo Reply packet. Source IP address for sending an Echo Request packet. Interface for sending an Echo Request packet.

Which of the following is a link-state routing protocol?. FTP. OSPF. Direct. Static.

Refer to the network diagram. Which of the following statements describes the network shown?. There are 2 broadcast domains in the network. There are 4 collision domains in the network. There are 6 broadcast domains in the network. There are 6 collision domains in the network.

When the "delete vrpcfg.zip" command is run on the Huawei VRP user interface, the file can be permanently deleted only after it is cleared from the recycle bin. True. False.

Which of the following descriptions about STP designated ports is correct?. Designated ports are responsible for sending BPDU to connected network segments. Designated ports forward frames destined for the root switch. Each bridge can have only one designated port. Designated ports represent the path leading to the root switch.

On an STP-enabled switch, a port in the Learning state can transition to the Forwarding state only after the Forward Delay timer expires. True. False.

Which of the following parameters is not used by an Advanced ACL?. Source interface. Destination port number. Protocol number. Time-range.

On Huawei VRP platform, which of the following can be used to invoke the history command saved by the command line interface?. Ctrl+P. Upper cursor key. Ctrl+U. Left cursor key.

An ACL rule is as follows. Which of the following IP addresses can be matched by the permit rule? Rule: rule 5 permit ip source 10.0.2.0 0.0.254.255. 10.0.4.5. 10.0.6.7. 10.0.5.6. 10.0.2.1.

Which of the following commands sets the data forwarding mode on an AC to direct forwarding?. forward mode tunnel. forward-mode direct-forward. forward-mode capwap-forward. forward-mode direct.

As shown in the figure, if host A has the ARP cache of host B, host A can ping host B. True. False.

A company applies for a class C IP address for subnetting. It has six branches and the largest branch should have 26 hosts. What would be an appropriate subnet mask for the largest branch?. 255.255.255.0. 255.255.255.128. 255.255.255.192. 255.255.255.224.

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?. 1. 3. 4. 2.

(What is the main function of a dynamic routing protocol?). Generate an IP address. Manage routers. Generate a routing table. Control the status of router interfaces.

A router that runs OSPF can enter the Full state only after Link-State Database (LSDB) synchronization is completed. True. False.

Which statement is true regarding the following command? ip route-static 10.0.12.0 255.255.255.0 192.168.1.1. The configuration represents a static route to the 10.0.12.0 network. The configuration represents a static route to the 192.168.1.1 network. If the router has learned the same destination network via a dynamic routing protocol, the static route will always take precedence. The preference value of this configured route is 100.

The users who log on the router through Telnet are not permitted to configure an IP address. What is the possible reason?. Privilege level of Telnet is set incorrectly. SNMP parameters are set incorrectly. The authentication mode of Telnet is set incorrectly. Communication failures occur between the user and the router.

Which of the following statements is true about direct routes?. The administrator needs to manually configure the destination network and next-hop address for the direct route. The priority of the direct route is lower than that of the dynamic route. The direct route has the highest priority. The priority of the direct route is lower than that of the static route.

Refer to the display startup command output shown in the figure. Which of the following statements are true? The following shows the command output on a router. Which of the following statements are true? display startup MainBoard: Startup system software: flash:/AR2220E-V200R007C00SPC600.cc Next startup system software: flash:/AR2220E-V200R007C00SPC600.cc Backup system software for next startup: null Startup saved-configuration file: flash:/vrpcfg.zip Next startup saved-configuration file: flash:/backup.zip Startup license file: null - Next startup license file: null - Startup patch package: null - Next startup patch package: null Startup voice-files: null - Next startup voice-files: null -. The current VRP configuration file is different from that used for next startup. The current VRP configuration file is the same as that used for next startup. The current VRP version file is different from that used for next startup. The current VRP version file is the same as that used for next startup.

Which of the following statements about VLANIF interfaces is/are correct?. Different VLANIF interfaces can use the same IP address. A VLANIF interface is a Layer 3 interface. VLANIF interfaces do not need to learn MAC addresses. A VLANIF interface does not have a MAC address.

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?. Broadcast. DHCP. Manually specified on the AP. DNS.

There are hosts in a private network that need to access the Internet. In order to achieve this requirement, which of the following configurations should the administrator do on the edge router of the network?. DHCP. NAT. STP. Default routing.

What is the total length of an IPv6 address in bits?. 32. 64. 128. 96.