1 Huawei.H12-811-ENU.v2024-02-23 2 - good sht.pdf

Huawei.H12-811-ENU.v2024-02-23 Exam Code: H12-811-ENU Exam Name: HCIA-Datacom V1.0 Certification Provider: Huawei Free Question Number:...

Huawei.H12-811-ENU.v2024-02-23 Exam Code: H12-811-ENU Exam Name: HCIA-Datacom V1.0 Certification Provider: Huawei Free Question Number: 143 Version: v2024-02-23 # of views: 131 # of Questions views: 1430 NEW QUESTION: 1 When the router is powered on, it will read the configuration file from the default storage path to initialize the router. If there is no configuration file in the default storage path, what will the router use for initialization? A. Default parameters B. Current configuration C. New configuration D. Initial configuration Answer: A NEW QUESTION: 2 Which WLAN security policies support the link authentication method of Open mode? (Multiple Choice) A. WEP B. WPA2-802.IX C. WPA2-PSK D. WPA Answer: A,B,D NEW QUESTION: 3 Which statement is wrong about the ARP message? A. ARP reply packets are sent unicast B. Any link layer protocol requires ARP messages to assist in obtaining data link layer identification C. ARP packets cannot be forwarded to other broadcast domains D. ARP request message is sent by broadcast Answer: B NEW QUESTION: 4 The Backup ports in RSTP may alternatively failed root port. A. False B. True Answer: A NEW QUESTION: 5 If the transport layer protocol is UDP, the value of the network layer Protocol field is 6. A. True B. False Answer: A NEW QUESTION: 6 As shown in the figure below, the network and switch configuration information are shown in the figure. Which of the following statements is correct? (Multiple choice) A. The PVID of the switch GigabitEthernet0/0/1 port is 20 B. Data frames on the two links do not contain VLAN TAG C. Host A and Host B can be pinged D. Host point and host B cannot ping Answer: A,B,D NEW QUESTION: 7 What is the main function of the DHCP DISCOVER message? A. The DHCP server is used to respond to the DHCP DISCOVER message, which carries various configuration information B. The server's confirmation response to the REQUEST message C. The client requests configuration confirmation, or renews the lease D. The client is used to find the DHCP server Answer: D NEW QUESTION: 8 In the broadcast network as shown in the figure, OSPF runs on four routers in the same area and on the same network segment. OSPF will automatically elect one DR and multiple BDRs to achieve better backup results. A. False B. True Answer: A NEW QUESTION: 9 In the network shown in the figure below, two switches are connected by four links, COPPER refers to electrical interface, and FIBER refers to optical interface. Which of the following two interfaces can achieve link aggregation? A. G0/0/3 and FE0/0/3 B. G0/0/3 and G0/0/1 C. G0/0/2 and FE0/0/3 D. G0/0/2 and G0/0/1 Answer: B NEW QUESTION: 10 The network administrator configures the Huawei router RTA as shown in the figure. If a user needs to be authenticated in the authentication domain "huawei", the correct description below is (). [RTA]aaa [RTA-aaa]domain Huawei RTA-aaa-domain-huawei]authentication-s cheme aul [RTA-aaa-domain-huawei]authentication-scheme au2 A. Will use "au2" authentication and will use "authentication-scheme au1" authentication B. Will use "authentication-scheme au2" authentication C. "authentication-scheme aul" authentication will be used, if "au1" is deleted, "au2" authentication will be used D. "authentication-scheme au2" authentication will be used, if "au2" is registered, "aul" authentication will be used Answer: C NEW QUESTION: 11 For multiple paths to the same destination network, the router needs to select by comparing the magnitude of the Preference value. If the Preference is the same, then select according to the magnitude of the Cost value. A. True B. False Answer: A NEW QUESTION: 12 UDP cannot guarantee the reliability of data transmission, and does not provide functions such as message sequencing and flow control. It is suitable for flows with low transmission reliability requirements but high transmission speed and delay requirements. A. False B. True Answer: B NEW QUESTION: 13 Telnetlib is a module that implements the Telnet protocol that comes with Python. A. False B. True Answer: B NEW QUESTION: 14 Which of the following statement about the TTL field in the IP packet header is correct? A. TTL defines the time interval at which the source host can send data packets B. TTL defines the number of packets that the source host can send C. Every time an IP packet passes through a router, its TTL value will be reduced by 1 D. Each time an IP packet passes through a router, its TTL value will be increased by 1 Answer: C NEW QUESTION: 15 The switch receives a unicast data frame. If the destination MAC of the data frame can be found in the MAC table, the data frame will be forwarded from the corresponding MAC port. A. TRUE B. False Answer: A NEW QUESTION: 16 Which of the following IEEE 802.11 standards support operation in the 5GHz frequency band? (Multiple choice) A. 802.11ac B. 802.11g C. 802.11n D. 802.11a Answer: A,D NEW QUESTION: 17 Using the command mkdir test in the VRP operating platform, the system will create a directory named test. A. True B. False Answer: A NEW QUESTION: 18 A company has 50 private IP addresses. The administrator uses NAT technology to connect the company's network to the public network, but the company has only one public network address and is not fixed. Which of the following NAT conversion methods meets the needs? A. Static NAT B. easy-ip C. NAPT D. Basic NAT Answer: B NEW QUESTION: 19 Broadly speaking, which of the following does the transmission medium that constitutes the wireless local area network wlan not include? A. Ray B. Radio waves C. Laser D. Infrared Answer: A NEW QUESTION: 20 What is the value of TPID defined by IEEE802.1Q? A. 0x8200 B. 0x8100 C. 0x7200 D. 0x9100 Answer: B NEW QUESTION: 21 In order to realize the network layer function on VLANIF interface, what need to be configured on VLANIF interface? (Multiple choice) A. Subnet mask B. MAC address C. IP prefix D. IP address Answer: A,D NEW QUESTION: 22 The Layer 2 Ethernet switch generates entries in the MAC address table according to the ( ) of the Ethernet frame received by the port. A. Source MAC address B. Destination MAC address C. Destination IP address D. Source IP address Answer: A NEW QUESTION: 23 At present, the company has a network administrator, and the AR2200 in the company network can be remotely managed by directly entering the password through Telnet. After the two new network administrators arrived, the company hopes to assign their own user names and passwords to all administrators, as well as different levels of authority. So how should it be done? Multiple choices A. Each administrator uses a different public IP address of the device when running the Telnet command B. Configure three user names and their corresponding passwords in the AAA view C. When configuring each administrator's account, different permission levels need to be configured D. The user authentication mode configured by Telnet must select AAA mode Answer: B,C,D NEW QUESTION: 24 In the CAPWAP tunnel establishment phase, after the AC receives the Join Request message sent by the AP, the AC will check the validity of the AP. Which of the following is the authentication method supported by the AC? (Multiple choice) A. MAC authentication B. SN certification C. Not certified D. Password authentication Answer: A,B,C,D NEW QUESTION: 25 In order to join the wireless network STA needs to obtain wireless network information first. Which of the following messages is used by the STA to actively obtain the SSID information? A. Beacon B. Discovery C. Join D. Probe Answer: D NEW QUESTION: 26 The IPv6 protocol uses NS and NA packets for duplicate address detection (DAD). A. False B. True Answer: B NEW QUESTION: 27 Which version of the SNMP protocol below supports encryption features? A. SNMPv3 B. SNMPv2 C. SNMPv2c D. SNMPv1 Answer: A NEW QUESTION: 28 The router needs to modify the destination IP address in the data packet when forwarding data packets. A. True B. False Answer: B NEW QUESTION: 29 Which of the following types of addresses is not included in IPv6 addresses? A. Broadcast address B. Unicast address C. Anycast address D. Multicast address Answer: A NEW QUESTION: 30 When the switch port sends a data frame carrying the same VLAN TAG and PVID, it must strip the VLAN TAG and forward it. A. False B. True Answer: A NEW QUESTION: 31 Which of the following messages is used by AP to request software version from AC? A. VRP System Request B. Software Request C. Image Data Request D. Image package Request Answer: C NEW QUESTION: 32 Virtualization is the basis for the realization of NEV. Which of the following statements about the characteristics of virtualization is correct? (Multiple choice) A. Partition: You can run multiple virtual machines on a single physical server at the same time. B. Hardware independence: virtual machine and hardware decoupling, support virtual machine migration between servers. C. Isolation: The virtual machines on the same physical server are isolated from each other. D. Encapsulation: All virtual machines share the operating system, and encapsulation is achieved through name spaces. Answer: A,B,C NEW QUESTION: 33 If the Length/Type of an Ethernet data frame is 0X8100, which of the following is correct? A. There must be an IP header in the upper layer of this data frame B. This data frame must carry VLAN TAG C. There must be a UDP header in the upper layer of this data frame D. There must be a TCP header in the upper layer of this data frame Answer: A NEW QUESTION: 34 Link aggregation is a common technology in enterprise networks. Which of the following descriptions are the advantages of link aggregation technology? (Multiple Choice) A. Realize load sharing B. Increase bandwidth C. Improve reliability D. Improve safety Answer: A,B,C NEW QUESTION: 35 The network shown in the figure below. The administrator hopes that RTA uses static routing, and preferentially sends data packets to RTB 's Loopback0 interface through G0/0/1 por, while G0/0/2 serves as a backup. So how to configure on RTA to achieve this requirement? A. ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 ip route-static 10.0.2.2 255.255.255.255 10.0.21.2 B. ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 preference 70 ip route-static 10.0.2.2 255.255.255.25510.0.21.2 C. ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 ip route-static 10.0.2.2 255.255.255.255 10.0.21.2 preference 70 D. ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 ip route-static 10.0.2.2 255.255.255.255 10.0.21.2 preference 40 Answer: C NEW QUESTION: 36 On the broadcast network, both DR and BDR use the multicast address 224.0.0.6 to receive link state update messages. A. True B. False Answer: B NEW QUESTION: 37 What is the length of the Ethernet_II frame containing the Ethernet header? A. 64-1500B B. 60-1560B C. 46-1500B D. 64-1518B Answer: C NEW QUESTION: 38 When the LACP mode is used for link aggregation, what is the default system interference level of Huawei switches? A. 32768 B. 24576 C. 36864 D. 4096 Answer: A NEW QUESTION: 39 The function of 0SPF hello message is (). (Multiple Choice) A. Synchronize the LSDB of the router B. Maintain neighbor relations C. Update LSA information D. Neighbor discovery Answer: B,D NEW QUESTION: 40 Which of the following methods can read data non-blocking in Python's telnetlib? A. telnet_Read_all B. telnet_read _very_eager C. telnet._read_eager D. telnet_read_very_lazy Answer: C NEW QUESTION: 41 RADIUS is a common protocol to implement AAA. A. True B. False Answer: A NEW QUESTION: 42 44.Which of the following protocols consist of the PPP protocol? (Multiple Choice) A. Authentication protocol B. LCP C. NCP D. PPPoE Answer: A,B,C NEW QUESTION: 43 The two switches shown in the figure below have both enabled the STP protocol. Which port will eventually be in the Blocking state? A. G0/0/2 port of SWB B. G0/0/2 port of SWA C. G0/0/3 port of SWB D. G0/0/3 port of SWA Answer: D NEW QUESTION: 44 The bridge ID of the STP protocol in the switching network is as follows. Which of the following bridge ID switches will become the root bridge? A. 4096 00-01-02-03-04-DD B. 32768 00-01-02-03-04-AA C. 32768 00-01-02-03-04-CC D. 32768 00-01-02-03-04-BB Answer: A NEW QUESTION: 45 Which planes of the following does a network device have? (Multiple choice) A. Business plane B. Data plane C. Management plane D. Control plane Answer: B,D NEW QUESTION: 46 In which view can the administrator modify the device name for the router? A. Interface-view B. User-view C. Protocol-view D. System-view Answer: D NEW QUESTION: 47 What is the main function of the dynamic routing protocol? A. Dynamically generate routing entries B. Control router interface status C. Manage routers D. Generate IP address Answer: A NEW QUESTION: 48 On the VRP operating platform, what is the command to display the current interface configuration in the interface view? A. display this B. display ip interface brief C. display users D. display version Answer: C NEW QUESTION: 49 Which of the following descriptions about firewalls is wrong? A. The firewall cannot achieve network address translation B. Firewall can realize access control between different networks C. Firewall can isolate networks with different security levels D. Firewall can realize user identity authentication Answer: A NEW QUESTION: 50 The configuration information of a certain port of the switch is shown in the figure, then the port will strip off the VLAN TAG when sending data frames carrying which VLAN? A. 1.4.6 B. 4.5.6 C. 1.4.5.6 D. 4.6 Answer: A NEW QUESTION: 51 VRP operating system commands are divided into 4 levels: access level, Monitoring level, Configuration level, and Management level. Which level can run various business configuration commands but cannot operate the file system? A. Configuration level B. Monitoring level C. Management level D. Access level Answer: A NEW QUESTION: 52 What are the following characteristics of the default VLAN in the Layer 2 Ethernet switch? (Multiple Choice) A. The IP address configured on the switch will only be applied to the member ports of the default VLAN B. By default, all ports of the switch are member ports of the default VLAN C. The default VLAN cannot be deleted manually D. A default VLAN must be created before it can be assigned a port Answer: A,B,C NEW QUESTION: 53 Which of the following descriptions of OSPF areas are correct? (Multiple choice) A. The number of the backbone area cannot be 2 B. The number range of the area is from 0.0.0.0 to 255.255.255.255 C. All networks should be declared in zone 0 D. Before configuring the OSPF area, an IP address must be configured for the loopback interface of the router Answer: A,B NEW QUESTION: 54 The output information of the sub-interface of a router aggregate port 1 is shown in the figure. Based on this information, which of the following statements are correct? (Multiple Choice) [Router A]display Interface Eth-Trunk 1.100 Eth-Trunk1.100 current state : UP Line protocol current state : UP Last line protocol up time : 2019-03-04 10:22:40 UTC -08 :00 Description: HUAWEI, AR Series, Eth-Trunk1.100 Interface Route Port, Hash arithmetic : According to SIP-XOR-DIP, Maximal BW: 2G, Current BW: 2G, The Maximum Transmit Unit is 1500 Internet Address is 10.0.12.2/24 IP Sending Frames' Format is PKTFIT ETENT 2.Hardware address 1s 00e0-fc3b-2015 Current system time: 2019-03-04 10:24:29 -08:00 Last 300 seconds input rate 0 bits/sec, 0 packets/sec Last 300 seconds output rate 0 bits/sec, 0 packets/sec Realtime 0 seconds input rate 0 bits/sec, 0 packets/sec Realtime 0 seconds output rate 0 bits/sec, 0 packets/sec Input: 6 packets, 574 bytes, Output:7 packets, 638 bytes, Input bandwidth utilization ;0% Output bandwidth utilization :0% -------------------------------- PortName Status Weight -------------------------------- GigabitEthernet0/0/1 UP 1 GigabitEthernet0/0/2 UP 1 -------------------------------- The Number of Ports in Trunk : 2 The Number of UP Ports in Trunk : 2 A. The sub-interface of the aggregate port carries VLAN TAG 100 when forwarding data frames B. Two links exist on the aggregate port C. The IP address of the sub-interface of the aggregate port is 10.0.12.2/24 D. The sub-interface number of the aggregate port is 100 Answer: B,C,D NEW QUESTION: 55 To query the configuration information of the device's OSPF protocol, which of the following commands can be used? (Multiple Choice) A. display current-configuration B. display ospf peer C. Enter the command "display this" in the OSPF protocol view D. dis ip routing-table Answer: A,C NEW QUESTION: 56 Which of the following are not the characteristics of a small-sized campus network? A. Simple network requirements B. Simple network level C. Fewer users D. Wide coverage Answer: D NEW QUESTION: 57 What kind of message does the OSPF protocol use to confirm the received LSU message? A. LSR B. LSU C. LSACK D. LSA Answer: C NEW QUESTION: 58 FAT AP can independently complete wireless user access, wireless user authentication, and business data forwarding without AC. A. True B. False Answer: A NEW QUESTION: 59 Which statement are correct about the shortcut keys of the VRP operating platform? (Multiple choice) A. CTRL+C to stop the current command B. The left cursor key (