EMT Practice Test

1. Question Content...

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Question1: On Huawei AR G3 routers, what is the -i parameter of the Ping command in VRP used to set?

Question2: On the VRP platform, the default protocol priority of routes in the direct routing, static routing, RIP, OSPF area is:

Question3: Which of the following networks belong to a local area network? (Multiple choice)

Question4: 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.

Question5: The tracert diagnostic tool in Huawei routers is used to track the data forwarding path.

Question6: A certain ACL of the router is in the following rules, rule deny source 192.168.2.0 0.0.0.255 destination 172.16.10.2 0.0.0.0 Which statement is correct?

Question7: In which working state of the STP protocol can the port be changed to the Forwarding state without going through other states?

Question8: If the Ethernet data frame Length/Type=0X0806, which of the following statement is correct? (Multiple choice)

Question9: Which stage of the life cycle of campus network construction is the beginning of a project?

Question10: Which of the following statements about router-on-a-stick are correct? (Multiple Choice)

Question11: If the MAC address of an interface is 0OEO-FCEF-OFEC, what is its corresponding EUI-64 address?

Question12: Compared with STP, which of the following port roles are newly defined in RSTP? (Multiple choice)

Question13: The network administrator created VLAN 10 on the Layer 3 switch and configured an IP address under the virtual interface of the VLAN. When the command "display ip interface brief" is used to check the port status, it is found that the VLANIF 10 interface is in the down state. What should be done to restore the VLANIF 10 interface to normal?

Question14: By default, the port cost calculated by STP has a certain relationship with the port bandwidth, that is, the greater the bandwidth, the () the cost.

Question15: The network shown below, it is desirable host traffic network administrator during planning A destined for host B data packets through the router between the G0/0/3 interfaces, the host B to the host PC A data packet through the router Between the G0/0/4 interface, which of the following commands can achieve this requirement? (Multiple choice)

Question16: The Layer 2 Ethernet switch generates entries in the MAC address table according to the ( ) of the Ethernet frame received by the port.

Question17: All interfaces of the router belong to the same broadcast domain.

Question18: The network management system can only view the operating status of the device through the SNMP protocol, but cannot issue configurations.

Question19: In the RSTP standard, in order to improve the convergence speed, the port that the switch is directly connected to the terminal can be defined as ( ).

Question20: Which of the following statement about static routing in Huawei equipment is wrong?

Question21: When using the FTP protocol to upgrade the router software, which of the following transmission mode should be selected?

Question22: Trunk ports can allow multiple VLANs to pass, including VLAN4096.

Question23: The Layer 2 switch is a data link layer device, which can identify the MAC address information in the data frame, forward data according to the MAC address, and record these MAC addresses and corresponding port information in its own MAC address table.

Question24: Which of the following fields does the MPLS header include? (Multiple choice)

Question25: Which of the following statements about the division of OSPF protocol area is wrong?

Question26: There is no channel overlap in the 14 available frame segments in the 185.2.4 GHz frame segment.

Question27: The switch GO/0/1 port configuration information is shown in the figure. Which VLAN data frame does the switch forward without VLAN TAG?
#
interface GigabitEtherneto/o/1
port link-type trunk
port trunk pvid vlan 10
port trunk allow-pass vlan 10 20 304o
#

Question28: In the configuration BPDU sent by the switch, which bridge ID is unlikely to appear?

Question29: Which of the following types does IPv6 address contain?

Question30: As shown in the figure below, assuming the other configurations of the switch are kept in the default state, which port of the following switch will become the designated port? (Multiple Choice)

Question31: By default, how long is the lease period of the IP address assigned by the DHCP server?

Question32: Which of the following are not the characteristics of a small-sized campus network?

Question33: The switch becomes a logical switch after stacking and clustering, and Eth-Trunk across physical devices can be deployed to improve network reliability.

Question34: By default, the root path cost of the root bridge in the STP protocol must be 0.

Question35: The two switches shown below have both enabled the STP protocol. An engineer made the following conclusions on this network. Which conclusions do you think are correct? (Multiple choice)

Question36: Using the ACL shown in the figure on the router RTA to match routing entries, which of the following entries will be matched? (Multiple choice)

Question37: Now it is necessary to implement a Python automation script Te1net to the device to view the device running configuration. Which of the following statements is wrong?

Question38: What address does 192.168.1.127/25 represent?

Question39: Which field is added to the IPv6 packet header than the IPv4 packet header?

Question40: In the network as shown in the figure below, the host has an ARP cache. Which of the following statements is correct? (Multiple Choice)

Question41: 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.

Question42: 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.

Question43: Now there are the following four segments: 10.24.0.0/24, 10.24.1.0/24, 10.24.2.0/24, 10.24.3.0/24, which route can point to these four network segments at the same time? (Multiple Choice)

Question44: Which of the following descriptions of OSPF areas are correct? (Multiple choice)

Question45: To apply the ACL configured in the figure in Telnet, which of the following statements is correct?

Question46: 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?

Question47: Refer to the route-in-a-stick configuration in the figure below, it can be judged that the administrative department and the financial department can communicate with each other even if the ARP proxy is not enabled on the R1 sub-interface.

Question48: Which layer of the OSI reference model does the router work at?

Question49: The output information of the router R1 routing table is shown in the figure. Which of the following statements is correct? (Multiple Choice)

Question50: What is the data link layer MAC address of each VAP on the AP?

Question51: The classic network forwarding method is based on router routing table forwarding. The forwarding method of OpenFlow switches is based on flow table forwarding. Which of these two forwarding methods are correct? (Multiple Choice)

Question52: 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?

Question53: The network administrator of a certain company wants to uniformly divide the users who often access the company network from different switches into VLAN 10 when they frequently change office locations. Which of the following methods should be used to divide VLANs?

Question54: Which extension headers are supported by IPv6 packets? (Multiple choice)

Question55: Telnet is based on TCP protocol.

Question56: Broadly speaking, which of the following does the transmission medium that constitutes the wireless local area network wlan not include?

Question57: The IPv6 address 2001: ABEF: 224E: FFE2: BCC0: CD00: DDBE: 8D58 cannot be abbreviated.

Question58: The output information of a switch is shown in the figure. Which of the following interfaces can forward data frames with VLAN ID 40 and do not carry tags when forwarding?

Question59: Which of the following elements are included in the routing table? (Multiple choice)

Question60: In the network shown in the figure below, if Router A and Router B's loopback 0 communicate through static routing, which command needs to be entered on Router A?

Question61: The administrator cannot log in to the Huawei router through Telnett, but other administrators can log in normally, so which of the following are the possible reasons? (Multiple Choice)

Question62: Which of the following does not be included in AAA?

Question63: On the VRP platform, which of the following methods can be used to access the previous history commands?

Question64: Switch stacking supports more than two devices. Through stacking, multiple switches can be grouped into one logical device.

Question65: Which of the following types of addresses is not included in IPv6 addresses?

Question66: Which of the following OSPF protocol packets can ensure the reliability of LSA updates?

Question67: As shown in the figure, the switch runs STP with default parameters, which of the following ports will be elected as the designated port?

Question68: AC uses CAPWAP control tunnel to transmit management messages to FIT AP.

Question69: As shown in the figure below, suppose the MAC address table of SWA is as follows. Now host A sends a data frame with the destination MAC address MAC-B. Which of the following statements is correct?

Question70: On the AC, you can manually specify the source address or source interface of the CAPWAP tunnel.

Question71: The administrator has configured the router as shown in the figure, then what IP address can a host connected to the G1/0/0 interface of the router obtain through DHCP?

Question72: FAT AP can independently complete wireless user access, wireless user authentication, and business data forwarding without AC.

Question73: What percentage does the DHCP client expect to send the lease renewal message for the first time?

Question74: In the network shown in the figure below, the bridge ID of the switch has been marked. Enter the command stp root secondary on the SWD switch, and which of the following switch will become the root bridge of this network?

Question75: What is the priority value of the direct route entry?

Question76: A company applies for a Class C address segment, which needs to be evenly distributed to 8 subsidiaries. The largest subsidiary has 14 computers. Different subsidiaries must be in different network segments. The subnet mask should be designed as ().

Question77: Which of the following IPv4 addresses the host uses cannot directly access the Internet?

Question78: Before the STA associates with the AP, it needs to exchange some messages to obtain the SSID. What are these messages?

Question79: The IEEE 802.11ac standard only supports the 5GHz frequency band.

Question80: By default, network devices running SNMPv2c protocol use which of the following port numbers to send trap messages to the network management system?

Question81: In the network shown in the figure below, the host has an ARP cache, and host A sends a packet to host B.
What are the destination MAC and destination IP of this packet?

Question82: What are the user authentication methods that can be deployed in wlan? (Multiple choice)

Question83: The output information of a certain device is shown in the figure. Which of the following statements is correct? (Multiple Choice)
<Huawe1>display interface G1gabitEthernet 0/0/0
G1gabi tEthernet0/0/0 current state : UP
Line protocol current state : UP
Route Port, The Maximum Transmit Unit is 1000
Internet Address is 10.0.12.2/2 4
IP Sending Frames' Format is PRTFMT ETENT_2.Hardware address is 00e0- fc22- 4fff
Port Mode: FORCE COPPER
Speed : 100.Loopback: NONE
Duplex: FULL,Negotiation: DISABLE
Md1 : AUTO
Last 300 seconds input rate 24 bits/sec, 0 packets/sec
Last 300 seconds output rate 24 bits/sec, 0 packets/sec

Question84: 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?

Question85: In order to distinguish different users and provide different network services on the AP. Which of the following can be configured?

Question86: Which type of message is used by network devices running SNMPv 1 protocol to actively send alarm information?

Question87: The MAC address table of the existing switch is shown in the figure. Which of the following statements are correct?

Question88: SNMPv1 defines 5 protocol operations.

Question89: What type of IPv6 address FE80: 2E0: FCFF: FE6F: 4F36 belongs to?

Question90: A network engineer prompts the following information when entering the command line:
Error: Unrecognized command found at ' ^ ' position. Which of the prompt information is correct?

Question91: A device has been configured to complete the Telnet configuration. The device login address is 10.1.1.10. The Telnet user name is admin and the password is Huawei@123. Which of the following is the correct way to log in to this device using telnetlib?

Question92: The broadcast address is a special address in which the host bits in the network address are all set to 1, and it can also be used as a host address.

Question93: In the VRP interface, use the command startup saved-configuration backup.cfg to configure the startup.cfg file for the next startup.

Question94: Which of the following working modes are supported by Huawei Enterprise AP? (Multiple Choice)

Question95: If the network address of a network is 192.168.1.0, then its broadcast address must be 192.168.1.255.

Question96: Which planes of the following does a network device have? (Multiple choice)

Question97: VRP operating platform, which of the following commands can only view static routes?

Question98: Which of the following statement about the TTL field in the IP packet header is correct?

Question99: vty configuration as shown in the figure, the user authority level is set to level 3.
[Huawei]user-interface vty o 14
[Huawei-ul-vtyo-14]acl 200o inbound
[Huavei-ui-vtyo-14]user privilege level 3
[Huavei-ui-vtyo-14]authentication-node password Please configure the login password (maxim length 16):huawei

Question100: How many more bytes are the packets using MPLS label double-layer nesting technology than the original IP packets?

Question101: What is the total length of the VLAN frame format defined by IEEE802.1Q?

Question102: The management of users by NAS devices is based on domains. Each user belongs to a domain, and a domain is a group of users who belong to the same domain.

Question103: A DHCP server is deployed in the network, but the administrator found that some hosts did not correctly obtain the address specified by the DHCP server. What are the possible reasons? (Multiple choice)

Question104: Which of the following parameters cannot be used in the advanced visit control list?

Question105: When planning the campus network, which of the following mask lengths is recommended for device interconnection IP addresses?

Question106: The MPLS label header is encapsulated between the data link layer header and the network layer header of the message.

Question107: In the network shown in the figure below, all routers run OSPF protocol, which device is ABR? (Multiple choice)

Question108: In the network shown in the figure below, assuming that all routers enable the OSPF protocol at the same time, which router is the BDR in this network?

Question109: The function of 0SPF hello message is (). (Multiple Choice)

Question110: Which of the following network parameters can be assigned by Dynamic Host Configuration Protocol DHCP? (Multiple choices)

Question111: NAPT distinguishes the IP addresses of different users through the protocol numbers in TCP, UDP, or IP packets.

Question112: In the network shown in the figure, which of the following configurations can realize that host A can access the Internet, but host B can not? (Multiple Choice)

Question113: On Huawei ARG3 series routers, what authentication modes does AAA support? (Multiple Choice)

Question114: The link aggregation interface can only be used as a Layer 2 interface.

Question115: In the network shown in the figure below, host A logs in to router A through Telnet, and then obtains the configuration file of router B through FTP on the remote interface. How many TCP connections exist on router A at this time?

Question116: Which statement is wrong about the ARP message?

Question117: Which of the following levels is not a common network level in mid-sized campus network architecture?

Question118: Which of the following commands can modify the device name to huawei?

Question119: What are the advantages of the OSPF protocol? (Multiple Choice)

Question120: Which of the following protocols does the RA message used by IPv6 stateless autoconfiguration belong to?

Question121: 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? (Multiple Choice)

Question122: As shown in the figure below, the wrong statement is:

acl number 2000]
rule 5 deny source 200.0.12.00.0.0.7 rule 10permit source200.0.12.00.0.0.15 #
interface GigabitEthernetO/0/1 traffic-filteroutbound acl2000

Question123: Which statement about OSPF protocol DR is correct?

Question124: Which of the following commands can be used to view the router's CPU usage?

Question125: What kind of message does the OSPF protocol use to discover and maintain neighbor relationships?

Question126: In order to realize the network layer function on VLANIF interface, what need to be configured on VLANIF interface? (Multiple choice)

Question127: Which of the following IPv6 addresses is a multicast address?

Question128: As shown in the figure, all four switches run STP, and various parameters adopt default values. If the G0/0/2 port of switch C is blocked and the configuration BPDU cannot be sent through this port, how long will it take for the blocked port in the network to enter the forwarding state?

Question129: Which of the following statements about the edge port in the RSTP protocol is correct?

Question130: How many types of data flows with different service levels can be marked based on MPLS labels?

Question131: If the Length/Type of an Ethernet data frame = 0x8100, which of the following statements is correct?

Question132: On which layer of the OSI reference model does the Ethernet switch work?

Question133: In the network shown in the figure below, all routers run OSPF protocol. Above the link is the value of the Cost value, then the path for RTA to reach the network 10.0.0.0/8 is:

Question134: The router output information is shown in the figure. Which of the following statements is wrong?

Question135: FIT AP can work independently without relying on AC.

Question136: 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)

Question137: In the network shown in the figure below, all routers run the OSPF protocol, and the link cost value is shown in the figure. What is the cost value of the route entry to the network 10.0.0.0/8 in the RTA routing table?

Question138: In the history of WLAN development, which of the following is not included in the main wireless protocol standards in the primary mobile office era?

Question139: The device port running STP protocol is in Forwarding state. Which of the following statements is correct?

Question140: When the switch port receives a data frame that does not carry VLAN TAG, it must add PVID

Question141: Which of the following options are configured in a Layer 2 ACL? (Multiple choices)

Question142: In the VRP interface, use the command startup saved-configuration backup.cfg. to configure the backup.cfg file for the next startup.

Question143: When using FTP for file transfer, how many TCP connections will be established?

Question144: 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

Question145: On the VRP platform, what is the role of the command "interface vlanit <vlan-id>" ?

Question146: Network shown below, Host A does not configure the gateway, the host B exists gateway ARP cache, which of the following statements are correct? (Multiple choice)

Question147: In what state does the OSPF protocol determine the master-slave relationship of DD packets?

Question148: What kind of message does the OSPF protocol use to confirm the received LSU message?

Question149: There are multiple route entries to the same destination network in the routing table. These routes are called:

Question150: <huawei>system-view
[huawei]command-privilege level 3 view user save
The correct statement about the above configuration command is:

Question151: Which of the following statements about the role of STP protocol Forward Delay is correct?

Question152: Which of the following authentication methods does not require the user name and password?

Question153: As shown in the figure, a static NAT command is deployed on router R1. When the PC accesses the Internet, the destination address in the data packet will not change.

Question154: As shown in the figure, if host A and host B want to achieve inter-VLAN communication through single-arm routing, which configuration should be done under the G0/0/1.1 interface of RTA?

Question155: In the WLAN network architecture, what is terminal equipment that supports the 802.11 standard called?

Question156: Which of the following advantages does router-on-a-stick achieve inter-VLAN routing intercommunication?

Question157: As shown in the figure below, the router uses a sub-interface as the gateway of the host. The IP address of the gateway is 10.0.12.2. Which of the following commands can achieve this requirement? (Multiple choice)

Question158: Which statement about the Hybrid port is correct?

Question159: An existing switch is connected to a designated port through a port, but the port does not forward any packets, but can monitor network changes by receiving BPDUs, then what is the role of the port?

Question160: It is known that there are two entries in the routing table of a router. If the router wants to forward packets with the destination address of 9.1.4.5, which of the following statements is correct?

Question161: In the network shown in the figure, the administrator hopes that all hosts cannot access the web service (the port number is 80), and other services are normally accessed, so in the interface configuration of G0/0/1, traffic-filtar outbound needs to define which ACL rule?

Question162: The IPv6 protocol uses NS and NA packets for duplicate address detection (DAD).

Question163: In the switch MAC address table, which of the following entries will not age?

Question164: VRP supports OSPF multi-process. If the process number is not specified when 0SPF is enabled, the process number used by default is ().

Question165: What is the value of the Type field in the RStp configuration BPDU message?

Question166: As shown in the figure, after the two routers are configured with OSPF, the administrator configures the <silent -interface s0/0/0> command on RTA, then the correct description of the following is (). (Multiple Choice)