Huawei HCIA Datacom Version 2

In the figure, R1 functions as an FTP client, and R2 functions as an FTP server. When configuring FTP user information on the server, the administrator needs to set the user level to obtain the corresponding access permission. To do so, the administrator needs to run the local-user admin privilege level _____ command in the AAA view of R2. (Enter only digits, range is from 0 to 3.). 0. 1. 2. 3.

On the OSPF network shown in the figure, S1 is a Layer 2 switch. A total of_____DRs will be elected on this network. (Enter only digits.). 1. 2. 3. 4.

On the network shown in the figure, it is required that interfaces on R1 and R3 are reachable to each other through static routes. When implementing this requirement, there is no need to configure static routes on _____. (Enter a device name in the figure, for example, R1.). R1. R2. R3.

If a gateway router wants its connected IPv6 terminals to obtain IPv6 addresses through SLAAC, it must set the M-bit in RA messages to _______. (Enter only digits.). 1. 0.

On the switched network shown in the figure, STP is enabled on all devices. SW1 is the root bridge. The port costs are shown in the figure. Other parameters retain the default values. After the network is stable, the RPC value from SW5 to the root bridge is _____. (Enter only digits.). 50. 60. 40. 30.

When a network administrator prepares to log in to a Huawei CloudEngine S series switch for the first time, the administrator cannot log in to the switch through the console port to access the CLI because the switch is in factory settings. True. False.

In the figure, the router only ensures network connectivity between the web client and server, and all devices are interconnected through Ethernet cables. When the web client sends an HTTP request to the web server, which layers’ header information in the HTTP request will the router check or modify? (Choose all that apply.). Application layer. Transport layer. Data link layer. Network layer.

In TCP/IP-based end-to-end communication, only the source and destination hosts process the header information added at the transport layer. The routers along the path will definitely not process this information. True. False.

In the figure, a web client sends an HTTP request to a web server, and the router in between performs operations on the HTTP request. Which of the following statements are false about the router’s operations? (Choose all that apply.). The router checks the content of the application layer data and determines the port from which to send the data. The router encapsulates a new destination IP address before sending the data. The router searches the IP routing table based on the port number in the transport layer header. The router removes the data frame header and checks the destination IP address.

The network administrator finds that the MAC addresses of some hosts in the enterprise O&M manual are obscured, as shown in the figure. The exhibit bit in the MAC addresses of these hosts is _________. (Enter only digits.). 0. 1.

On the network shown in the figure, the interfaces connecting switches to terminals are access interfaces, and the interfaces connecting switches to each other are trunk interfaces. The administrator configures interface-based VLAN assignment. PC1 and PC3 belong to VLAN 2, and PC2 and PC4 belong to VLAN 3. Trunk interfaces allow packets from VLAN 2 and VLAN 3 to pass through and use the default PVID. When PC2 sends a data frame to PC4, the administrator obtains the data frame on the link between SW1 and SW2. Which of the following statements is true about the data frame?. The data frame carries the VLAN 1 tag. The data frame does not carry any VLAN tag. The data frame carries the VLAN 3 tag. The data frame carries the VLAN 2 tag.

After the root bridge is elected on an STP network, which of the following parameters may be compared by ports on non-root bridge nodes to elect the root port? (Choose all that apply.). PID of a port on the device that sends BPDUs. PID of a port on the local device. BID of the device that sends BPDUs. Root path cost (RPC).

On the network shown in the figure, GE1/0/1, GE1/0/2, and GE1/0/3 of SW1 are directly connected to SW2, and GE1/0/4 of SW1 is directly connected to SW3. The administrator runs the interface eth-trunk 1 command on SW1 and SW2 to create an Eth-Trunk to increase link bandwidth. Which of the following statements are true about this scenario? (Choose all that apply.). If the administrator configures an Eth-Trunk in LACP mode and adds all interfaces of SW1 to the Eth-Trunk, no traffic will be forwarded to SW3 through GE1/0/4 of SW1. If the administrator configures an Eth-Trunk in manual mode and adds all interfaces of SW1 to the Eth-Trunk, traffic may be forwarded to SW3 through GE1/0/4 of SW1. If the administrator configures an Eth-Trunk in manual mode and adds all interfaces of SW1 to the Eth-Trunk, the Eth-Trunk will go Down. f the administrator configures an Eth-Trunk in LACP mode and adds all interfaces of SW1 to the Eth-Trunk, the Eth-Trunk will go up.

The network administrator performs the configuration shown in the figure on SW1 and SW2. Which of the following statements is false about this scenario?. When SW2 processes a data frame sent from PC1 to PC3 internally, the data frame carries the VLAN 2 tag. When SW2 processes a data frame sent from PC2 to PC4 internally, the data frame carries the VLAN 3 tag. When forwarding a data frame sent from PC2 to PC4, SW1 removes the VLAN tag and then sends the data frame. When forwarding a data frame sent from PC1 to PC3, SW1 removes the VLAN tag and then sends the data frame.

The administrator has completed the configuration shown in the figure on SW1. Which of the following configurations can enable Layer 2 communication between PC1 and PC2? (Choose all that apply.). Configure GE1/0/2 as a hybrid interface, add it to VLAN 10 in tagged mode, and set its PVID to VLAN 10. Configure GE1/0/2 as an access interface and set its PVID to VLAN 10. Configure GE1/0/2 as a trunk interface, configure it to allow packets from VLAN 10 to pass through, and set its PVID to VLAN 10. Configure GE1/0/2 as a hybrid interface, add it to VLAN 10 in untagged mode, and retain the default PVID.

The administrator performs the configuration shown in the figure on SW1. After the network is stable, the administrator pings the IP address of PC2 from PC1. The connectivity is normal. Then, the administrator runs the undo vlan 10 command on SW1. After the network is stable, the administrator pings the IP address of PC2 from PC1 again. Which of the following statements are false about this scenario? (Choose all that apply.). SW1 accepts the data frame sent from PC1 to PC2, but discards the data frame returned from PC2 to PC1. PC1 can still ping the IP address of PC2. After receiving the data frame sent from PC1 to PC2, SW1 adds the VLAN 10 tag to the data frame and then accepts the data frame. The data frame processed inside SW1 does not carry any VLAN tag.

On the switched network shown in the figure, STP is enabled on all devices. The priorities, bridge MAC addresses, and port costs of the devices are shown in the figure. Other parameters retain the default values. The direct link between SW3 and SW4 is disconnected, and after some time the network becomes stable again. Which of the following statements is true about this scenario?. SW2 has one alternate port. The root port of SW4 is GE1/0/2. The path of traffic from SW4 to SW2 is SW4 –> SW2. SW4 is the root bridge on the network.

To prevent network congestion caused by loops, the IP header includes a TTL field. The source device sets the initial TTL value, which decreases by 1 each time the IP packet is forwarded by a Layer 2 or Layer 3 device. When the TTL value reaches 0, the packet is discarded. True. False.

PC1 is a DHCP client and obtains a dynamic IP address from the DHCP server (the IP address lease period is 24 hours). The DHCP server is subsequently powered off for more than a week due to a fault. In this case, PC1 can continue to use the previously assigned IP address throughout this period. True. False.

On the network shown in the figure, S1 serves as the gateway for R1, R2, and R3, and its three interfaces are all access interfaces. When forwarding a packet sent from R1 to R3, S1 needs to check the routing table. True. False.

On the network shown in the figure, R1 has the following static route configured: [R1] ip route-static 10.0.12.0 24 10.0.12.2 preference 60. Therefore, the priority value of the route to 10.0.12.0/24 in the routing table of R1 is 60. True. False.

Unlike distance-vector routing protocols, link-state routing protocols advertise link states instead of route information. Typical link-state routing protocols include RIP, OSPF, and IS-IS. True. False.

Which of the following can a DHCPv4 client obtain from a DHCPv4 server? (Choose all that apply.). IPv4 address. DNS address. Address lease. Gateway address.

If PC1 obtains an IPv6 address through SLAAC, which of the following is the network prefix length of the address that PC1 receives?. 96. 64. 32. 48.

On the network 192.168.1.15/25, which of the following is the smallest IP address that can be assigned to a host?. 192.168.1.127. 192.168.1.120. 192.168.1.1. 192.168.1.255.

Which of the following IP addresses cannot be configured for a host by default?. 192.168.1.1/24. 10.0.0.1/8. 224.0.0.1/24. 172.16.1.1/16.

Which of the following is not a type of OSPF packets?. LSAck. LSU. Hello. LSA.

Assume that PC1 and PC2 can communicate with each other. When R2 forwards a data packet sent from PC1 to PC2, which of the following statements are true? (Choose all that apply.). The source IP address is 192.168.2.1. The source MAC address is MAC D. The destination MAC address is MAC_F. The source MAC address is MAC_E.

On the network shown in the figure, R1 serves as the gateway for PC2 and PC3, and directly connects to S1 through a physical link. GE1/0/1 on S1 is configured as a trunk interface and permits traffic of VLANs 2 and 3. Its PVID retains the default value. Which of the following statements are true if PC2 and PC3 can communicate with each other? (Choose all that apply.). S1 has ARP entries of PC2 and PC3. R1 can terminate data frames of VLANs 2 and 3. S1 has MAC address entries of PC2 and PC3. Sub interfaces GE0/0/1.2 and GE0/0/1.3 have been created on R1.

AAA adopts the client/server architecture. Which of the following protocols is not supported between the client and the server?. MD5. HWTACACS. LDAP. RADIUS.

R1 has the following configurations: [R1] acl 3000 [R1-acl4-advance-3000] rule 5 deny ip source 10.0.1.1 0.7.0.0 [R1-acl4-advance-3000] rule 30 permit ip [R1-acl4-advance-3000] quit Packets with which of the following source IP addresses can match rule 30? (Choose all that apply.). 10.5.1.1. 10.10.1.1. 10.4.0.0. 10.6.1.1.

Secure Shell (SSH) is a protocol that uses encryption and authentication mechanisms to implement network services (such as secure access and file transfer) securely over an insecure network. Which of the following protocols use SSH? (Choose all that apply.). SFTP. DNS. STelnet. NETCONF.

Which of the following NAT modes translates the destination IP address of an IP packet?. NAT Server. Easy IP. NAPT. No-PAT.

R1 has the following configurations: [R1] nat server for_telnet protocol tcp global 100.0.23.2 telnet inside 192.168.1.1 telnet When a public network user and 100.0.23.2 are reachable, the public network user can run the telnet 192.168.1.1 command to log in to 192.168.1.1. True. False.

On an intelligent computing data center network, various intelligent lossless network technologies are used to ensure zero packet loss. The working mechanism of the lossless technology PFC is as follows: When the packet buffer at the data receive end reaches the back pressure threshold, the receive end sends PFC frames to the transmit end, instructing the transmit end to stop sending packets. True. False.

The emergence of AI poses new requirements on data center networks. To meet AI computing requirements, a high-speed intelligent computing data center network with zero packet loss needs to be constructed. Which of the following statements are false about the requirements and solutions of intelligent computing data center networks? (Choose all that apply.) A. Due to large-scale data synchronization services on the intelligent computing network, a single port must have a high bandwidth (200G/400G). B. Lossless technologies such as PFC and ECN are used on the intelligent computing network to implement a network with zero packet loss. C. The RDMA protocol stack is used on the intelligent computing network to reduce the transmission latency between GPU servers and physical switches. D. Measures such as single-port ultimate bandwidth and lossless network technologies can be used to achieve a network with close to zero packet loss, but not a truly lossless network. Due to large-scale data synchronization services on the intelligent computing network, a single port must have a high bandwidth (200G/400G). Lossless technologies such as PFC and ECN are used on the intelligent computing network to implement a network with zero packet loss. The RDMA protocol stack is used on the intelligent computing network to reduce the transmission latency between GPU servers and physical switches. Measures such as single-port ultimate bandwidth and lossless network technologies can be used to achieve a network with close to zero packet loss, but not a truly lossless network.

In the leader AP networking architecture, the leader AP functions as a WAC and uses the CAPWAP protocol to uniformly manage and configure Fit APs. True. False.

In the WAC + Fit AP networking, the WAC centrally manages and controls APs through ________ tunnels. (Enter the acronym in uppercase.). CAPWAP. N/A.

IEEE 802.11 is the standard for WLANs. Which of the following 802.11 protocols uses 1024-QAM modulation?. 802.11n. 802.11be. 802.11ac. 802.11ax.

In the Layer 3 in-path WLAN networking, the WAC and Fit APs are connected at Layer 3. APs can obtain the WAC’s address through broadcast or DHCP. True. False.

When configuring WLAN services on a Huawei WAC, the profile-based configuration mode is used. Different WLAN profiles are designed for various service functions, and these profiles reference each other to take effect. Which of the following statements is false about the reference relationships between WLAN profiles?. An authentication profile can be referenced in a VAP profile. A security profile can be referenced in an SSID profile. An SSID profile can be referenced in a VAP profile. An air scan profile can be referenced in a radio profile.

You define the following function in Python: def add(a, b, c) return a + b + c You then add the following code. To ensure that the code is correctly executed, sort the following code in sequence. N/A. N/A.

Which of the following protocols can be used to modify the configuration of a network device? (Choose all that apply.). NETCONF. Syslog. RESTCONF. SNMP.

Which of the following statements are true about NETCONF and SNMP? (Choose all that apply.). Both NETCONF and SNMP can use SSH as the transport protocol. NETCONF can operate on the MIB databases of network devices. SNMP does not provide a protection or locking mechanism, and conflicts may occur when multiple users operate on the same object. NETCONF uses XML encoding.

Given the following Python code, the output of print(Test) is the same as that of print(test). Test = ‘Hello World’ test = ‘hello world’. True. False.

The figure below shows the partial topology of a campus network and the corresponding data plan. The interconnected physical interfaces only allow traffic from the interconnection VLAN, and the corresponding VLANIF interfaces have been created. Across the entire campus network, OSPF is deployed to implement Layer 3 connectivity, and STP is enabled. Given this, which of the following statements are true? (Choose all that apply.). If GE1/0/3 of ACC2 is an alternate port, no OSPF neighbor relationship can be established between ACC1 and ACC2. If GE1/0/3 of ACC2 is an alternate port, ACC1 learns the route of 10.1.23.0/24 through OSPF. The IP routing table of Core1 contains IP routes of three interconnection network segments. As the network is a Layer 3 network, the STP function configured by the administrator is invalid.

Network administrators need to manage and maintain the devices on the campus network. Which of the following protocols cannot modify device configurations, such as interface IP addresses, device names, etc.?. SNMP. SFTP. STelnet. NETCONF.

In the figure, a TCP connection has been established between PC1 and PC2. PC1 needs to send two data segments to PC2, and the first data segment has been correctly received by PC2. When PC1 sends the second data segment to PC2, PC2 correctly receives the data and replies to PC1 with the acknowledgment number a+. (Enter only digits.). 41. N/A.

Which of the following commands can an administrator run to specify the configuration file for the next startup?. startup system-software. startup saved-configuration. reset factory-configuration. reset saved-configuration.

An enterprise’s network switch has security vulnerabilities because its version is too early. The administrator wants to upload a patch file through FTP to fix the vulnerabilities. Which of the following files is a patch file that can be uploaded by the administrator?. test.cc. test.pat. test.cfg. test.zip.

If host A wants to communicate with host B, which is on another subnet, host A broadcasts an ARP request to obtain host B’s MAC address. After receiving the request, host B replies with an ARP response to notify host A of its MAC address. True. False.

The administrator performs the configuration shown in the figure on SW1 and SW2. Initially, PC1 is connected to GE1/0/1 of SW1. After the network is stable, the administrator pings the IP addresses of PC2 and PC3 from PC1. Later, the administrator connects PC1 to GE1/0/2 of SW1. After the network is stable, the administrator pings the IP addresses of PC2 and PC3 from PC1. Which of the following statements is false about this scenario?. After PC1 is connected to GE1/0/2 of SW1, PC1 cannot ping PC2 or PC3. When PC1 is connected to GE1/0/1 of SW1 and the ping operation is performed, the mapping between the MAC address of PC1, VLAN 10, and the MAC address of GE1/0/1 is generated on SW1. After PC1 is connected to GE1/0/2 of SW1, PC1 can communicate with PC3 only. When PC1 is connected to GE1/0/1 of SW1, PC1 can communicate with PC2 only.

On a switched network, the administrator has completed the VLAN-related configuration shown in the figure on SW1. If the administrator runs the ping 192.168.1.2 command on PC1, the ping will fail. True. False.

On the network shown in the figure, if sent by Host A, data frames with which of the following destination MAC addresses can be received by Host B and Host C at the same time? (Choose all that apply.). FF-FF-FF-FF-FF-FF. 98-10-C2-00-00-01. 53-80-C2-00-00-01. 34-01-C2-00-00-01.

The administrator configures an Eth-Trunk in LACP mode between two switches, and sets the maximum number of active links in the Eth-Trunk to 3 and the number of remaining standby links to 1. If one of the active links fails, the two switches automatically adjust the number of active links to 2 through negotiation, and the standby link remains in the standby state. True. False.

The figure shows the simplified topology of an enterprise campus network. On this network, the aging time of dynamic MAC address entries on switches is 300 seconds. The administrator connects PC1 to GE1/0/1 of SW1, and PC2 successfully pings the IP address of PC1. The administrator disconnects the Ethernet cable of PC1 from GE1/0/1 of SW1, immediately connects the cable to GE1/0/2 of SW1, and connects GE1/0/1 of SW1 to another switch. Then, the administrator pings the IP address of PC1 from PC2. In this case, SW1 discards the data frame received from PC2. True. False.

On the network shown in the figure, the interfaces connecting switches to terminals are access interfaces, and the interfaces connecting switches to each other are trunk interfaces. The administrator configures interface-based VLAN assignment. PC1 and PC3 belong to VLAN 2, and PC2 and PC4 belong to VLAN 3. Trunk interfaces allow packets from VLAN 2 and VLAN 3 to pass through and use the default PVID. The MAC address tables of switches are empty. When SW1 receives a unicast data frame sent from PC1 to PC3, through which of the following interfaces does SW1 not send the data frame? (Choose all that apply.). GE1/0/2. GE1/0/3. GE1/0/4. GE1/0/1.

R1 has two equal-cost routes to 10.0.12.0/24 after the following commands are configured. [R1] ip route static 10.0.12.0.24 10.0.12.2 preference 60 [R1] ip route-static 10.0.12.0.24 10.0.21.2 preference 60. True. False.

R1 has four static routes, each of which has a reachable next hop. Given this static route configuration, what is the next hop of the route to 20.0.0.0/30 in R1’s routing table? [R1] ip route-static 20.0.0.0 30 10.1.1.2 [R1] ip route-static 20.0.0.0 30 10.1.2.2 preference 70 [R1] ip route-static 20.0.0.0 30 10.1.3.2 preference 100 [R1] ip route-static 20.0.0.0 30 10.1.4.2 preference 50. 10.1.4.2. 10.1.2.2. 10.1.1.2. 10.1.3.2.

The IPv6 header is also called a fixed header, which contains eight fields. The total length of the fixed header is 40 bytes. Which of the following fields does an IPv6 header include? (Choose all that apply.). Source IPv6 address. Hop Limit. Next Header. Source MAC address.

In an IPv6 address, two or more consecutive groups of 0s can be compressed using a double colon (::), reducing the overall length of the address. For example, 2001:DBFF:130F:0:0:0:0:130B can be compressed to 2001:DBFF:130F::130B. True. False.

Which of the following DHCPv4 messages are sent by a DHCPv4 server? (Choose all that apply.). DHCP ACK. DHCP DISCOVER. DHCP REQUEST. DHCP OFFER.

Defining OSPF areas in a large network helps reduce the size of the LSDB maintained by each router. If both R1 and R2 are assigned to area 1, they have the same LSDB within that area. True. False.

If the neighbor relationship between R1 and R2 has reached the Full state, which of the following statements are true? (Choose all that apply.). R1 and R2 have different router IDs. R1 and R2 have the same LSDB in the same area. R1 and R2 belong to the same area. R1 and R2 use the same process ID.

According to the OSPF neighbor information of R1 shown below, which of the following statements is false about R1?. R1 has the smallest router ID. R1 is not a DR. GE0/0/0 belongs to area 0. R1 is not a DROther.

Which of the following hosts are reachable to the host at 192.168.1.200/27 at Layer 2? (Choose all that apply.). 192.168.1.192/27. 192.168.1.193/27. 192.168.1.221/27. 192.168.1.222/27.

An administrator attempts to add the following rule to ACL 2001 on R1: [R1] acl 2001 [R1-acl4-basic-2001] rule deny tcp destination port eq telnet source 192.168.1.3.0 destination 192.168.2.0.0.0.0.255 In this case, the rule cannot be configured successfully. True. False.

The following ACL rule is configured on R1: [R1] time-range working-time 8:00 to 18:00 working-day [R1] acl name work-acl basic [R1-acl4-basic-work-acl] rule deny source 192.168.1.0 0.0.0.255 time-range working-time [R1-acl4-basic-work-acl] quit According to the rule, hosts with source IP addresses on network segment 192.168.1.0/24 match the rule from 8:00 to 18:00 on workdays. True. False.

When source NAT is configured on an enterprise egress device, which of the following may prevent intranet users from accessing the public network? (Choose all that apply.). The NAT function is not enabled on the device’s outbound interface connected to the public network. No route to the intranet address is configured on the public network router. No IP address is available in the NAT address pool. The IP address of an intranet user is out of the IP address range specified in the NAT policy.

R1 has the following configurations: [R1] aaa [R1-aaa] authentication-scheme auth1 [R1-aaa-authen-auth1] authentication-mode radius local [R1-aaa-authen-auth1] quit According to the preceding information. Assume that R1 is properly connected to the RADIUS server. When a user accesses R1, R1 first performs RADIUS authentication on the user. If the RADIUS server sends an authentication failure message to R1, R1 then performs local authentication on the user. True. False.

The following command is configured on the VTY interfaces of R1. [R1-ui-vty0-4] protocol inbound all In this case, FTP, Telnet, and SSH users can all use the five VTY interfaces. True. False.

On an intelligent computing data center network, the lossless network technology______ is deployed to instruct the sender to stop sending packets when network congestion is about to occur, ensuring zero packet loss on the network. (Enter the acronym in uppercase.). PFC. N/A.

With the continuous update and development of data center services, the architecture of general-purpose computing data center networks is also evolving. A cloud-based data center uses a cloud platform to centrally integrate resources and deliver compute, storage, and network services. Which of the following network architectures is used by such a data center?. M-LAG + Eth-Trunk. Spine-Leaf + VXLAN. PEC + ECN. STP + VRRP.

Compared with Wi-Fi 6, Wi-Fi 7 uses which of the following technologies to improve performance? (Choose all that apply.). 4096-QAM modulation. Multi-RU. Multi-link. MU-MIMO.

When configuring wireless services on a Huawei WAC, you need to configure a service VLAN to ensure the proper transmission of data packets from STAs. In which of the following profiles is the service VLAN configured?. Security profile. Regulatory domain profile. VAP profile. SSID profile.

In the Fat AP networking architecture, Fat AP can provide wireless, user access without being managed by a WAC, making them suitable for scenarios, such as homes and mini stores. True. False.

In the 802.11 standard, the 2.4 GHz frequency band is divided into 14 overlapping, staggered 20 MHz channels, numbered from 1 to 14. True. False.

Huawei network devices such as switches and routers can establish NETCONF channels with iMaster NCE-Campus through DHCP. The DHCP server notifies DHCP clients of the URL/IP address and port number of iMaster NCE-Campus through Option ________ (Enter only digits.). 148. N/A.

On a campus network, if two switches are directly connected through three physical links, you can configure either STP or link aggregation to improve network reliability. These two functions are mutually exclusive, meaning only one of them can be configured on a device at a time. True. False.

Assume you are an administrator of a campus network. You want to enable STelnet on network devices so that you can remotely log in to them for service commissioning and configuration changes. Which of the following statements is false about STelnet?. To maintain security of internal ports, the administrator can set the STelnet remote login port to any port, for example, port 1026. STelnet works in the C/S architecture. The device that needs to be remotely logged in to for commissioning is the STelnet server. STelnet is a secure remote login protocol based on SSH. It is a new protocol different from Telnet. To modify configurations, the privilege level of the STelnet login user cannot be set to 1.