EMT Practice Test

1. Question Content...

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Question1: If the Proto of a route information in the routing table is OSPF, the priority of this route must be 10.

Question2: On the VRP operating platform, what is the command to display the current interface configuration in the interface view?

Question3: On the VRP platform, which of the following methods can be used to access the previous history commands?

Question4: There is no channel overlap in the 14 available frequency bands in the 2.4GHz frequency band.

Question5: As shown in the figure below, router A has Telnet router B through IP address 10.0.12.2. In the current interface, which of the following operations will cause the Telnet session of Router A and Router B to be interrupted? (Multiple Choice)

Question6: According to the command shown in the figure, which of the following description is correct? (Multiple choice )

Question7: Which of the following IPv6 is a global unicast address?

Question8: The second layer ACL can match the source MAC, destination MAC, source IP, destination IP and other information.

Question9: The following statements about the election of active ports in link aggregation LACP mode. Which is correct?

Question10: The administrator wants all hosts to be unable to access the Internet between 8:00-17:00 every day, so which ACL rule needs to be bound to the traffic-filter outbound in the GO/0/1 interface allocation?

Question11: By default, how long is the lease period of the IP address assigned by the DHCP server?

Question12: NAPT distinguishes the IP addresses of different users through the protocol numbers in TCP, UDP, or IP packets.

Question13: 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?

Question14: AC uses CAPWAP control tunnel to transmit management messages to FIT AP.

Question15: In the STP protocol, which of the following factors will affect the election of the root switch? (Multiple choice)

Question16: What are the roles of OSPF protocol DR and BDR? (Multiple choice)

Question17: As shown in the figure, there is a web server in the private network that needs to provide HITRP services to public network users. Therefore, the network administrator needs to configure NAT on the gateway router RTA to achieve the requirements. Which of the following configuration can meet the requirement?

Question18: Which of the following statements about Prefix Segment is wrong?

Question19: What elements can NAPT convert?

Question20: Which of the following statement about the transport layer protocol is correct? (Multiple choice)

Question21: What is the length of the Ethernet_II frame containing the Ethernet header?

Question22: The router running the OSPF protocol can reach the FULL state after completing the LSDB synchronization.

Question23: 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)

Question24: Which of the following statements about direct routing is correct?

Question25: IPv6 address 2001: ABEF: 2240E: FFE2: BCC0: CD0: DDBE: 8D58 cannot be abbreviated.

Question26: After the network administrator uses the TracertRoute function on the router device, in the data packet sent by the router, what is the value of the Protoco1 field in the IPv4 header?

Question27: The configuration information of a interface of the router is shown in the figure, then which VILAN data packet can this port receive?
interface Gigabit Ethernet 0/0/2.30
dot1q terainat1on vid 100
ip address 1o.o.21.1 255.255.255.0
arp broadcast enable

Question28: As shown in the figure below, the MAC address table of SWA is as follows. The switch can't learn the MAC address of HOST A all the time. Which of the following is impossible?

Question29: The basic header length of IPv6 packets is a fixed value.

Question30: What is the full name of the general routing platform VRP?

Question31: Which of the following statements about IPv6 multicast addresses are correct? (Multiple Choice)

Question32: After the administrator successfully logs in to the router through Telnet, and finds that the router's interface IP address cannot be allocated, the possible reasons are ()

Question33: When AP and AC are on different Layer 3 networks, what method is recommended for AP to discover AC? (Multiple Choice)

Question34: 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.

Question35: In which of the following network types does the OSPF protocol need to elect DR and BDR? (Multiple choice)

Question36: The two switches shown in the figure below have both enabled the STP protocol. Which port will eventually be in the Blocking state?

Question37: 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 ( ).

Question38: 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:

Question39: By default, the bridge priority of Huawei switches is 32768.

Question40: Which of the following OSPF protocol packets can ensure the reliability of LSA updates?

Question41: The administrator wants to configure a hundred IP address on the G0/0/0 interface of the router, then which of the following addresses is correct?

Question42: 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?

Question43: Broadly speaking, which of the following does the transmission medium that constitutes the wireless local area network wlan not include?

Question44: What is the IEEE802.11 standard corresponding to Wi-F16?

Question45: As the figure shown: (Multiple Choice)

Question46: The DHCPv6 server supports providing other configuration information such as DNS server address for the host.

Question47: 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

Question48: Which of the following statement about the TTL field in the IP packet header is correct?

Question49: What kind of message does the DHCP server use to confirm that the host can use the IP address?

Question50: The network management system can only view the operating status of the device through the SNMP protocol, but cannot issue configurations.

Question51: All ports on the root bridge switch are designated ports.

Question52: PPPoE session can only use CHAP authentication.

Question53: 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.

Question54: The following two configuration commands can realize the router RTA to the same destination 10.1.1.0 routing master and backup backup.
【 RTA 】 ip route-static 10.1.1.0 24 12.1.1.1 permanent
【 RTA 】 ip route-static 10.2.2.0 24 13.1.1.1.

Question55: What is the total length of the VLAN frame format defined by IEEE802.1Q?

Question56: 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.

Question57: Which field is added to the IPv6 packet header than the IPv4 packet header?

Question58: As shown in the figure, the correct description of this network topology is ().

Question59: 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?

Question60: The tracert diagnostic tool in Huawei routers is used to track the data forwarding path.

Question61: Which of the following description about the Layer 2 Ethernet switch is incorrect?

Question62: If the value of the Type/Length field of an Ethernet data frame is 0 x 0800, the length of the upper layer message header carried by this data frame is in the range of 20-60B.

Question63: If the Proto of a certain route information in the routing table is Direct, the priority of this route is set to 0.

Question64: Two authentication domains "Area1" and "Area 2" are configured on a router acting as an authentication server. If the user authenticates with the correct user name "huawei" and password "hello", this user will be assigned In which authentication domain?

Question65: 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)

Question66: Which of the following advantages does the router-on-a-stick approach achieve routing intercommunication between VLANs?

Question67: On the VRP platform, the default protocol priority of routes in the direct routing, static routing, RIP, OSPF area is:

Question68: As shown in the figure, the two switches use the default parameters to run STP, the configuration command STP root primary is used on switch A, and the configuration command STP priority 0 is used on switch B.
Then which port will be blocked?

Question69: Through SR (Segment Routing), an explicit path can be easily defined. The nodes in the network only need to maintain the SegmentRouting information to cope with the real-time rapid development of the business. What are the following characteristics of Segment Routing? (Multiple choice)

Question70: Connection between switches and hosts, which port link type is often used by the switch?

Question71: On the AC, you can manually specify the source address or source interface of the CAPWAP tunnel.

Question72: The MAC address table of a certain switch is shown in the figure. If the switch receives a data frame with a destination MIAC of 5489-9885-18a8 from port Eth0/0/2, which of the following statements is correct?

Question73: What is the range of VLAN ID that users can use?

Question74: Which of the following commands can be used to view the router's CPU usage?

Question75: Network equipment running the SNMP protocol can take the initiative to report alarm information so that the network administrator can discover the fault in time.

Question76: 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?

Question77: 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?

Question78: VRP supports OSPF multi-process. If the process number is not specified when 0SPF is enabled, the process number used by default is ().

Question79: In the VRP interface, use the command delete vrpcfg.zip to delete the file. You must empty the recycle bin to completely delete the file.

Question80: If the MAC address of an interface is 0OEO-FCEF-OFEC, what is its corresponding EUI-64 address?

Question81: Regarding the IPv6 address 2031:0000:720C:0000:0000:09E0:839A:130B, which of the following abbreviations is correct?

Question82: Which of the following information prompts will the VRP operating platform use for incomplete input commands?

Question83: Which of the following description of static and dynamic routing is wrong?

Question84: Which planes of the following does a network device have? (Multiple choice)

Question85: What are the network types supported by the OSPF protocol? (Multiple Choice)

Question86: Which of the following statements about the default route are correct? (Multiple Choice)

Question87: How to add AP on AC? (Multiple Choice)

Question88: What frequency does IEEE 802.11n support? (Multiple Choice)

Question89: The controller is the core component of SDN. The controller connects to the device through the southbound interface. Which of the following belong to the controller southbound protocol? (Multiple Choice)

Question90: What kind of message does the OSPF protocol use to send LSA to neighbors?

Question91: 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?

Question92: On the broadcast network, both DR and BDR use the multicast address 224.0.0.6 to receive link state update messages.

Question93: In the campus network planning, which of the following ways can business VLAN be divided?

Question94: In the configuration BPDU sent by the switch, which bridge ID is unlikely to appear?

Question95: Which fields in the IPv4 header are related to fragmentation? (Multiple Choice)

Question96: If the Ethernet data frame Length/Type=0X0806, which of the following statement is correct? (Multiple choice)

Question97: What is the data link layer MAC address of each VAP on the AP?

Question98: By default, network devices running SNMPv2c protocol use which of the following port numbers to send trap messages to the network management system?

Question99: Which of the following IPv6 addresses is a multicast address?

Question100: As shown in the figure, if host A has the ARP cache of host B, host A can ping host B.

Question101: The network devices running the SNMP protocol are running locally-an agent process.

Question102: In order to realize the network layer function on VLANIF interface, what need to be configured on VLANIF interface? (Multiple choice)

Question103: Which of the following descriptions about spanning tree designated ports is correct?

Question104: Which of the following statement about Python is incorrect?

Question105: 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?

Question106: The information shown in the figure is the port status information displayed on a switch running STP. According to this information, which of the following description is wrong?

Question107: After the system restarts the static MAC address table, the saved entries will not be lost.

Question108: The following rules exist in a certain ACL of the router. rule deny tcp source 192.168.1.0 0.0.0.255 destination 172.16.10.1 0.0.0.0 destination-port eq 21 Which statement is correct?

Question109: What is the value of TPID defined by IEEE802.1Q?

Question110: In the VRP interface, use the command startup saved-configuration backup.cfg to configure the startup.cfg file for the next startup.

Question111: How many types of OSPF messages are there?

Question112: Among the following commands to configure the default route, which one is correct?

Question113: 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?

Question114: Which of the following statements about IPv6 address configuration are correct? (Multiple Choice)

Question115: The subnet mask of a network segment 150.25.0.O is 255.255.224.0, then what is a valid host address in the network segment?

Question116: The router Radius information configuration is shown in the figure. Which of the following statement is correct? (Multiple Choice)

Question117: Before the STA associates with the AP, it needs to exchange some messages to obtain the SSID. What are these messages?

Question118: Which of the following levels is not a common network level in mid-sized campus network architecture?

Question119: What address does 192.168.1.127/25 represent?

Question120: In the network shown in the figure below, all routers run OSPF protocol, which device is ABR? (Multiple choice)

Question121: In the network shown in the figure below, all links are Ethernet links, and all interfaces of all routers run OSPF protocol, how many DRs are elected in the entire network?

Question122: If the Length/Type of an Ethernet data frame = 0x8100, which of the following statements is correct?

Question123: Static NAT can only achieve one-to-one mapping between private addresses and public addresses.

Question124: Which extension headers are supported by IPv6 packets? (Multiple choice)

Question125: Which of the following descriptions about the switch is wrong?

Question126: Which of the following descriptions about Trunk port and Access port is correct?

Question127: 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?

Question128: 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?

Question129: Neither the Alternate interface nor the Backup port in RSTP can forward user traffic, nor can they receive, process, and forward BPDUs.

Question130: 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?

Question131: The tree network topology is actually a hierarchical star structure, which is easy to expand the network scale, but the higher the level, the more serious the network problem caused by the node failure.

Question132: Which field of the ipv6 packet header can be used for QoS?

Question133: On Huawei ARG3 series routers, what authentication modes does AAA support? (Multiple Choice)

Question134: What is the priority value of the direct route entry?

Question135: As shown in the figure below, which of the following statements are correct?

Question136: 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)

Question137: 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.

Question138: Which of the following types of addresses is not included in IPv6 addresses?

Question139: The Backup ports in RSTP may alternatively failed root port.

Question140: 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?

Question141: What is the maximum negotiation rate supported by the IEEE 802.llg standard?

Question142: The administrator plans to implement route backup by configuring static floating routes, what is the correct way to achieve this?

Question143: What is the total length of the IPv6 address in bits?

Question144: 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?

Question145: The function of 0SPF hello message is (). (Multiple Choice)

Question146: The wireless access controller (AC, Access Cntroller) is the unified management and control device in the FIT AP architecture. Which of the following description of the role of AC is wrong?

Question147: RADIUS is a common protocol to implement AAA.

Question148: As shown in the following figure, router A and router B establish an OSPF neighbor relationship. The OSPF process number of router A is 1, and the area number is 0. Which of the following configurations on router A can enable router B to obtain the network segment of host A routing? (Multiple choice)

Question149: If the transport layer protocol is UDP, the value of the network layer Protocol field is 6.

Question150: The picture shows the display startup information of AR2200 router. Regarding these information, which of the following statement iswrong?

Question151: Regarding the corresponding relationship between the access control list number and type, which of the following description is correct?

Question152: The number of VLANs that can be created using the commands "vlan batch 10 20" and "vlan batch 10 to 20" respectively is

Question153: Which of the following parameters cannot be used in the advanced visit control list?

Question154: What is the Solicited-node multicast address corresponding to IPv6 address 2019:: 8:AB?

Question155: <huawei>system-view
[huawei]command-privilege level 3 view user save
The correct statement about the above configuration command is:

Question156: Which version of the SNMP protocol below supports encryption features?

Question157: 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

Question158: How many types of data flows with different service levels can be marked based on MPLS labels?