EMT Practice Test

1. Question Content...

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Question1: 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?

Question2: 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)

Question3: In the STP protocol, which of the following factors will affect the election of the root switch? (Multiple choice)

Question4: 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?

Question5: What kind of message does the OSPF protocol use to discover and maintain neighbor relationships?

Question6: Which statement about the Hybrid port is correct?

Question7: The RSTP protocol uses the P/A mechanism to speed up the speed of the upstream port to the Forwarding state, but what is the reason why there is no temporary loop?

Question8: Which of the following statement about static routing in Huawei equipment is wrong?

Question9: All interfaces of the router belong to the same broadcast domain.

Question10: 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?

Question11: 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?

Question12: The following statements about the election of active ports in link aggregation LACP mode. Which is correct?

Question13: Which of the following statements about IPv6 address configuration are correct? (Multiple Choice)

Question14: In the network shown in the figure, which of the following description is correct?

Question15: Regarding the control plane of the device, which of the following statements is correct? (Multiple choice)

Question16: If the Ethernet data frame Length/Type=0X0806, which of the following statement is correct? (Multiple choice)

Question17: How to enter the view of OSPF area 0 in the vrp operating system? (Multiple choice)

Question18: The IPv6 address 2001: ABEF: 224E: FFE2: BCC0: CD00: DDBE: 8D58 cannot be abbreviated.

Question19: Connection between switches and hosts, which port link type is often used by the switch?

Question20: The router needs to modify the destination IP address in the data packet when forwarding data packets.

Question21: Which of the following parameters is not included in the configuration BPDU of the STP protocol?

Question22: What is the value of TPID defined by IEEE802.1Q?

Question23: In the OSI reference model, what can complete end-to-end error detection and flow control?

Question24: 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?

Question25: 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?

Question26: SNMPv1 defines 5 protocol operations.

Question27: 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)

Question28: What is the number range of advanced ACL?

Question29: 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?

Question30: 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.

Question31: The output information of the router R1 routing table is shown in the figure. Which of the following statements is correct? (Multiple Choice)

Question32: By default, network devices running SNMPv2c protocol use which of the following port numbers to send trap messages to the network management system?

Question33: What are the following characteristics of the default VLAN in the Layer 2 Ethernet switch? (Multiple Choice)

Question34: Hybrid port can be connected to user host and other switches.

Question35: As shown in the network below, all switches enable STP protocol. Disable SWA's G0/0/2 port configuration BPDU sending function, SWC G0/0/1 re-converges to become the root port, about this process, which of the following statements are correct? (Multiple Choice)

Question36: In standard STP mode, which of the following non-root switches will forward the TC set BPDU generated by the root switch?

Question37: Which of the following fields does the MPLS header include? (Multiple choice)

Question38: In the switch MAC address table, which of the following entries will not age?

Question39: When two OSPF routers form a 2-WAY neighbor relationship, the LSDB has been synchronized.

Question40: The router running the OSPF protocol reaches the FULL state first, and then synchronizes the LSDB.

Question41: ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 preference 20. Which is correct about this command? (Multiple Choice)

Question42: Which of the following networks belong to a local area network? (Multiple choice)

Question43: Which of the following statements about Trunk port and Access port are correct?

Question44: 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 ()

Question45: The output information of the link aggregation port of a certain switch is as follows. If you want to delete Eth-Trunk 1, which of the following commands is correct?

Question46: CAPWAP protocol stipulates the communication standard between AC and Ap. Which of the following statements about CAPWAP protocol is correct?

Question47: Which of the following statements about router-on-a-stick are correct? (Multiple Choice)

Question48: 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?

Question49: 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)

Question50: Which of the following statements about link aggregation is correct?

Question51: When the LACP mode is used for link aggregation, what is the default system interference level of Huawei switches?

Question52: <huawei>system-view
[huawei]command-privilege level 3 view user save
The correct statement about the above configuration command is:

Question53: As shown in the figure below, host A and host B cannot communicate.

Question54: As shown in the figure, the correct description of this network topology is ().

Question55: Which extension headers are supported by IPv6 packets? (Multiple choice)

Question56: 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.

Question57: If STP is not turned on for the network composed of switches, there must be a Layer 2 loop.

Question58: Which of the following advantages does the router-on-a-stick approach achieve routing intercommunication between VLANs?

Question59: If the MAC address of an interface is 0OEO-FCEF-OFEC, what is its corresponding EUI-64 address?

Question60: In the network shown in the figure below, when the OSPF neighbor status is stable, what is the neighbor status of Router B and Router C?

Question61: 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?

Question62: What are the advantages of using dynamic host configuration protocol DHCP to assign IP addresses? (Multiple choice)

Question63: Which of the following port states is not included in the RSTP protocol?

Question64: Which of the following descriptions about Trunk port and Access port is correct?

Question65: 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?

Question66: Which of the following elements are included in the routing table? (Multiple choice)

Question67: If the broadcast address of a network is 172.16.1.255, then what may its network address be?

Question68: Which of the following statements about Prefix Segment is wrong?

Question69: Which of the following description are wrong about the Forwarding state in the spanning tree protocol? (Multiple choice)

Question70: The configuration of the country code will affect the actual transmission frequency and maximum transmission power.

Question71: Which of the following descriptions about the switch is wrong?

Question72: Huawei ARG3 series routers have all SNMP versions (SNMPv1, SNMPv2c and SNMPv3) by default.

Question73: By default, how long is the lease period of the IP address assigned by the DHCP server?

Question74: The router Radius information configuration is shown in the figure. Which of the following statement is correct? (Multiple Choice)

Question75: The routing table output information of a router is shown in the figure. Which of the following statements is correct? (Multiple choice)

Question76: By default, the root path cost of the root bridge in the STP protocol must be 0.

Question77: How to add AP on AC? (Multiple Choice)

Question78: On Huawei routers, what is the default value of the OSPF protocol internal routing priority?

Question79: Which of the following port states does the RSTP protocol include? (Multiple choice)

Question80: 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)

Question81: Using the command mkdir test in the VRP operating platform, the system will create a directory named test.

Question82: If the broadcast address of a network is 172.16.1.255, what might its network address be?

Question83: 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?

Question84: What is the transmission rate of an Eth-Trunk port in manual link aggregation mode related to? (Multiple choice)

Question85: In the network shown in the figure below, host A is not configured with a gateway, and host B has the ARP cache of the gateway. Use the command ping 11.0.12.1 on host A.
Which of the following statements are correct?

Question86: What equipment is generally involved in the wlan deployment scheme in the enterprise scenario? (Multiple choice)

Question87: 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)

Question88: The second layer ACL can match the source MAC, destination MAC, source IP, destination IP and other information.

Question89: When the switch port sends a data frame carrying the same VLAN TAG and PVID, it must strip the VLAN TAG and forward it.

Question90: In which of the following network types does the OSPF protocol need to elect DR and BDR? (Multiple choice)

Question91: The configuration information of a certain port of the switch is shown in the figure. Which of the following statements is wrong?

Question92: 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?

Question93: For the description of the PPP link establishment process, which of the following statement is wrong?

Question94: When Huawei switches allow STP, the priority of the switch is by default:

Question95: Which of the following descriptions are correct about the concept of IEV architecture? (Multiple choice)

Question96: As shown in the figure, the switch runs STP with default parameters, which of the following ports will be elected as the designated port?

Question97: If the Proto of a route information in the routing table is OSPF, the priority of this route must be 10.

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

Question99: The IEEE 802.11ac standard only supports the 5GHz frequency band.

Question100: What is the full name of the general routing platform VRP?

Question101: The last option field of IPv4 is variable-length optional information. What is the maximum length of this field?

Question102: Which of the following authentication methods does not require the user name and password?

Question103: Which statement about SNMP protocol is correct?

Question104: 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.

Question105: If the Proto of a certain route information in the routing table is Direct, the priority of this route is set to 0.

Question106: 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.

Question107: When the Trunk port send the data frame, how to deal with?

Question108: The DHCPv6 server supports providing other configuration information such as DNS server address for the host.

Question109: There is no channel overlap in the 14 available frame segments in the 185.2.4 GHz frame segment.

Question110: What are the user authentication methods that can be deployed in wlan? (Multiple choice)

Question111: If the largest number in an ACL rule is 12, by default, the user does not specify a number when configuring a new rule, then what is the number assigned by the system for the new rule?

Question112: The MAC address table of existing switches is shown in the figure. Which of the following statement is correct?

Question113: The election of the root switch in STP only compares the switch priority, while in RSTP, the switch priority and MAC address are compared at the same time.

Question114: The host's IPv4 address is 200.200.200.201/30. Which of the following hosts has an IPv4 address and its communication does not need to be forwarded by a router?

Question115: Which of the following fields does the ARP packet format include? (Multiple choice)

Question116: Which of the following statements about VLANIF interfaces are correct?

Question117: 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?

Question118: As shown in the figure below, which of the following statement is correct?

Question119: 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

Question120: On Huawei ARG3 series routers, what authentication modes does AAA support? (Multiple Choice)

Question121: Which of the following descriptions about spanning tree designated ports is correct?

Question122: MIB (Management Information Base) is a virtual database that exists only in NMS.

Question123: If the Length/Type of an Ethernet data frame is 0X8100, which of the following is correct?

Question124: What elements can NAPT convert?

Question125: When building a campus network, which of the following protocols can be used to avoid Layer 2 loops?

Question126: The OSI reference model from high-level to bottom-level is ().

Question127: 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

Question128: What is the Solicited-node multicast address corresponding to IPv6 address 2019:: 8:AB?

Question129: Complete the ACL configuration shown in the figure on the router RTA, which of the following description is correct?

Question130: 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:

Question131: In what state does the OSPF protocol determine the master-slave relationship of DD packets?

Question132: In the configuration BPDU sent by the switch, which bridge ID is unlikely to appear?

Question133: On the VRP platform, the default protocol priority of routes in the direct routing, static routing, RIP, OSPF area is:

Question134: How many bits are there in the VLAN ID in the VLAN format defined by IEEE802.1Q?

Question135: What is the coverage area of an AP in WLAN?

Question136: In the campus network, network reliability can be improved by using link aggregation and stacking technology.

Question137: What is the total length of the IPv6 address in bits?

Question138: Which of the following descriptions about firewalls is wrong?