EMT Practice Test

1. Question Content...

---

Question1: As shown in the figure, the two hosts implement inter-machine communication through a single-route. When the available G0/0/1.2 sub-interface receives the data frame sent by Host B to Host A, which of the following operations does the RTA perform?

Question2: The Router ID of the OSPF process takes effect immediately after being modified.

Question3: The administrator wants to update the VRP of the AR2200 router. The correct method is (). (Multiple Choice)

Question4: Which of the following statement about the dynamic MAC address table is correct? (Multiple choice)

Question5: Which of the following values is used in the Length/Type field of the Ethernet data frame, indicating that the packet is in the PPPoE discovery phase?

Question6: As shown in the following figure, host A does not have a gateway configured. Host B has a gateway ARP cache. Which is correct? (Muitiple choice)

Question7: In the network shown in the following figure, all routers run the 0SPF protocol, and the top of the link is the value of the Cost value. What is the Cost value of the RA1 routing table that reaches the network 10.0.0.0/8?

Question8: On the network shown in the following figure, if the static route is configured on the RouterB, the NextHop corresponding to 2001::1/128 is in the routing table of RouterB.
ipv6 route-static 2001::1 128 3001::12:1

Question9: How many types of OSPF packets are there?

Question10: Which state does OSPF use to indicate that a neighbor relationship has been established?

Question11: The value of the MO flag in the RA message sent by the DHCPv6 service is 01. Which of the following methods does the host use to automatically configure the address?

Question12: Which of the following statements about the Node Segment is wrong?

Question13: Which packet is sent by the DHCPv6 client, requesting the DHCPv6 server to assign an IPv6 address and network configuration parameters to it?

Question14: The port cost calculated by STP has a certain relationship with the port bandwidth, that is, the larger the bandwidth, the () the overhead.

Question15: Refer to the graphic.

An administrator has configured the port interface G0/0/3 of Switch A as an edge port.
The user wishes to connect multiple devices to the network and connects his own managed switch to the network.
What effect will this have on the network?

Question16: In the RSTP protocol, the edge port loses the edge port attribute when it receives the configuration BPDU message.

Question17: The FEC (Forwarding Equivalence Class) is a set of data streams with certain commonalities; the FEC can be divided according to the address, but cannot be divided according to the service type, QoS, etc.

Question18: Which of the following statements about the TTL field in the IP packet header is correct?

Question19: An ACL rule is as follows: Which of the following IP addresses can be matched by the permit rule? (Multiple Choice) Rule 5 permit ip source 10.1.1.0 255.0.254.255

Question20: As shown in the network, the configuration information of Router A is as follows. Which of the following statement is wrong?
acl number 2000
rule 5 deny source 200.0.12.0 0.0.0.7
rule 10 permit source 200.0.12.0 0.0.0.15
#
interface GigabitEthernet0/0/1
traffic-filter outbound acl 2000
#

Question21: 0 packets are carried over TCP.

Question22: The router Router D neighbor relationship is as follows. Which of the following statement is correct? (Multiple Choice)

Question23: The Ethernet optical interface can only work in the () mode.

Question24: The IPv4 address of the host is 200.200.200.201/30. Which host with the following IPv4 address and its communication do not need to be forwarded by the router?

Question25: As shown in the figure, the RTA uses NAT technology and implements a many-to-many non-NAPT address translation by defining an address pool, so that hosts on the private network can access the public network. Assume that there are only two public IP addresses in the address pool, and the addresses have been assigned to hosts A and
B. If host C also wants to access the public network, which of the following description is correct?

Question26: What is the number range of the Layer 2 ACL?

Question27: For the network shown in the following figure, the switch uses the sub-interface pair of the machine interface and the router. Which of the following configurations can fulfill this requirement?

Question28: The following statement about the TTL field in the IP packet header, which is correct?

Question29: If the application layer protocol is Telnet, what is the value of the Protocol field in the IPv4 header?

Question30: As shown in the figure, the two ports of switch GE0/0/1 and GE0/0/2 perform different Hybrid configurations. Which of the following statements are correct? (Multiple Choice)

Question31: Which of the following statement is correct?

Question32: The device running STP will discard when it receives the configuration BPDU of RSTP.

Question33: On the VRP platform, what is the order of the default protocol priorities of direct route, static route, RIP, and OSPF from high to low?

Question34: Which of the following value is used in the Protocol field in the PPP frame to indicate that the core is an IP packet?

Question35: In the link aggregation technology, which parameters can the Eth-Trunk use to implement load balancing? (Multiple choice)

Question36: Which of the following description of static and dynamic routing is wrong?

Question37: What are the command line views exsiting on the VRP operating platform?

Question38: Which of the following parameters are used in the switched network that runs the STP protocol when performing spanning tree calculations? (Multiple Choice)

Question39: A network consisting of switches does not have STP enabled. A Layer 2 loop must occur.

Question40: An explicit path can be easily defined by SR (Segment Routing), and nodes in the network only need to maintain Seament Routing information. It can respond to the real-time rapid development of business.
What are the following characteristics of Segment Routing? (Multiple Choice)

Question41: As the network shown in the following figure, all routers run OSPF. The top of the link is the value of the Cost. What is the path of the RA to the network 10.0.0.8/8?

Question42: Which of the following routing protocols has the highest priority?

Question43: If a port has the following configuration information, which port does the VLAN TAG carry when transmitting data frames of the VLAN?

Question44: Which authentication modes does AAA support on Huawei AR G3 series routers? (Multiple choice)

Question45: The switch MAC address table is as follows, which is correct?

Question46: As shown in the figure, three Layer 2 switches are interconnected with one HUB, and the switch is enabled with STP. For the bridge ID setting of the switch STP, refer to the following figure. Others are default configurations. Which of the following statement is wrong?

Question47: What is the role of link aggregation? (Muitiple choice)

Question48: <Huawei>system-view
[Huawei] user-interface console 0
[Huawei-ui-console0] history-command max-size 20
Regarding the above configuration, which of the following statement is correct?

Question49: Which of the following is not the reason that RSTP can improve the convergence speed?

Question50: The output information of switch STP port is as follows: Which is wrong with the following statement?

Question51: The load balancing modes of the two ends of the Eth-Trunk can be inconsistent.

Question52: For a switch running STP, the port can be directly converted to the Disabled state in any state.

Question53: On the network shown in the following figure, the administrator wants Router A to use static routes to send packets to Router B priority through G0/0/1. Which command can be used to meet this requirement?

Question54: The configuration information of G0/0/1 interface of Router A is as follows. Which of the following statements are correct? (Multiple Choice) acl number 3000 rule 5 deny 17 rule 10 deny 89 rule 15 deny 6
#
interface GigabitEthernet0/0/1
traffic-filter inbound acl 3000
#

Question55: On the VRP platform, which of the following methods can you access the previous history command? (Multiple Choice)

Question56: As shown in the following figure, from the security point of view, Router A refuses to receive OSPF packets, GE packets, ICMP packets from G0/0/1. Which of the following command can fulfill this requirement?

Question57: Which of the following statements about one-arm routing is correct? (Muitiple choice)

Question58: As shown in the following figure, all routers run OSPF. Which device ABR?

Question59: The application data must carry the MAC address after being processed by the data link layer.

Question60: The last option field of IPv4 is variable length optional information. What is the maximum length of this field?

Question61: If the configuration information of a port on a switch is as follows, when this port sent the data frames of which VLAN, the VLAN TAG is stripped?

Question62: In which view can the administrator modify the device name for the router?

Question63: Which of the following information does the switch MAC address table not include?

Question64: Which of the following IPv6 addresses are link-wide multicast addresses? (Multiple Choice)

Question65: The administrator finds that the file cannot be transferred to the Huawei AR200 router through TFTP. What is the possible cause?

Question66: <Huawei>
Warning: Auto-Config is working.Before configuring the device, stop Auto-Config.If you perform configurations when Auto-Config is running, the DHCP , routing, DNS, and VTY configurations will be lost.
Do you want to stop Auto-config? [Y/N]:
The administrator found that the above message popped up on the device. The correct statement about this information is ().

Question67: Which of the following parts does the global unicast address consist of? (Multiple Choice)

Question68: Which of the following OSPF protocol packets can ensure the reliability of the LSA update?

Question69: As shown in the following figure, Switch A and Router A are connected through two links. The two links are in the manual load balancing mode. The aggregation port number is 1, and the data is forwarded through the aggregation link, which needs to carry VLAN TAG 100, which configuration does Router A need to use? (Multiple choice)

Question70: Which of the following features is no longer supported by OSPFv3 on an IPv6 network?

Question71: NAPT uses the same public IP address but different port numbers to translate private IP addresses. Which statement regarding the port number is correct?

Question72: Which of the following descriptions are incorrect about the OSPF Router ID? (Multiple Choice)

Question73: The VRP operating system commands are divided into four levels: access level, monitoring level, configuration level, and management level. Which level can run various business configuration commands but cannot operate the file system?

Question74: As shown in the following figure, Router A uses manual link aggregation and adds G0/0/1 and G0/0/2 ports to aggregation group 1. The incorrct statement about the status of Router A aggregation port 1 is:

Question75: Huawei devices can be managed using the Telnet protocol. Which of the following statements is correct about this management function?

Question76: As shown in the following figure, Switch A and Router A are connected through two links. The two links are in the manual load balancing mode. The aggregation port number is 1, and the aggregation link needs to forward data. Carrying VLAN TAG 100, which configuration does Router A need to use? (Multiple Choice)

Question77: Regarding the role of ARP protocol and packet encapsulation, which description is correct?

Question78: The output information of a switch is as follows. Which is correct?

Question79: How many seconds is the period of the OSPFv3 HELLO packet on the P2P link by default?

Question80: Which of the following message types does DHCP contain? (Multiple Choice)

Question81: Which of the following routing protocols are dynamic routing protocols? (Multiple Choice)

Question82: If the administrator performs the configuration below on the Router, the the host connected to the G1/0/0 interface of the router can obtain what kind of the IP address through DHCP?

Question83: SRGB (segment routing global block): A local label set reserved for the global segment. In MPLS and IPv6, SRGB is a collection of local labels reserved for global labels.

Question84: A DHCP OFFER packet can carry a DNS address, but can only carry one DNS address.

Question85: Now there are four network segments 10.24.0.0/24, 10.24.1.0/24, 10.24.2.0/24, 10.24.3.0/24. Which of the following network segments can be summarized? (Muitiple choice)

Question86: For multiple paths to the same destination network, the router needs to select by comparing the size of the Cost value. If the value of the Cost is the same, then select according to the size of the Preference value.

Question87: As shown in the figure below, all hosts can communicate normally. Which of the following statements are correct? (Multiple Choice)

Question88: Which statement is correct about the function of the network layer in the OSI reference model?

Question89: The ACL does not filter the traffic that the device itself generates to access other devices. Only the forwarded traffic is filtered. The forwarded traffic includes traffic that other devices access the device.

Question90: If the Proto of a routing information in the routing table is OSPF, the priority of this route must be 10.

Question91: An administrator cannot log in to the AR2200 router through Telnet. However, other administrators can log in normally. Which of the following are possible causes? (Multiple choice)

Question92: Which of the following statements about OSPF neighbor status is correct? (Multiple Choice)

Question93: The broadcast address is a special address in the network address where the host bits are all set to 1. It can also be used as a host address.

Question94: Which of the following IPv4 addresses is a Class A address?

Question95: Which parameter is used in the spanning tree protocol to elect the root bridge?

Question96: Which of the following are the basic elements of configuring a static route? (Muitiple choice)

Question97: Which technology does the shared medium network use for data forwarding?

Question98: Referring to the output result shown in the figure, it can be judged that the routing table of the router is composed of a direct route and a static route.

Question99: The network shown in the figure below, all switches open STP. Disable the sending function of the BPDU on the G0/0/2 port of the SWA. The G0/0/1 of the SWC re-converges to become the root port. Which is correct? (Muitiple choice)

Question100: Apply the following ACL in SNMP: which of the following is wrong?
acl number 2000
rule 5 permit source 192.168.1.2 0
rule 10 permit source 192.168.1.3 0
rule 15 permit source 192.168.1.4 0
#

Question101: When the host uses the stateless address autoconfiguration scheme to obtain an IPv6 address, the DNS server address information cannot be obtained.

Question102: How many bits of the Port ID total length in the spanning tree protocol?

Question103: The output information of a router is as follows. Which of the following statements are correct? (Multiple Choice)

Question104: Which of the following values is used in the Length/Type field of the Ethernet data frame, indicating that the packet carrying the PPPoE session phase is carried?

Question105: Which type of network does OSPFv3 need to elect DR?

Question106: In the following options, which is the necessary technology to enable a host with an IP address of 10.0.0.1 to access the Internet?

Question107: Which of the following statement about the OSPF backbone area is correct?

Question108: Which of the following are the stable states of OSPF neighbor relationships? (Multiple Choice)

Question109: Which of the following types of addresses cannot be used as the IPv4 address of host?

Question110: ::1/128 is the IPv6 loopback address.

Question111: When OSPF establishes adjacency, which of the following must be consistent? (Muitiple choice)

Question112: Which multicast address is used in OSPFv3 to represent all routers?

Question113: A router runs OSPF and does not specify a router ID. The P address of all interfaces is as follows. What is the router ID of the router OSPF protocol?

Question114: How many bytes are the packets using the MPLS label double-layer nesting technology more than the original IP packets?

Question115: What are the advantages of the OSPF protocol? (Muitiple choice)

Question116: Which of the following is not included in the routing table?

Question117: What is the priority of the bridge priority in the IEEE 802.1D standard?

Question118: What kind of IPv6 address is FE80::2EO:FCFF:FE6F:4F36?

Question119: Which of the following IPv6 addresses is a link-local address?

Question120: A router learns routes to the same destination address through RIP, OSPF, and static routes. By default, VRP will ultimately choose which protocol to learn the route through?

Question121: The router has the longest matching principle when looking up the routing table. Which of the following parameter is the length?

Question122: Which of the following statements about link aggregation is correct? (Muitiple choice)

Question123: As shown in the figure, if host A has host B ARP cache, host A can ping through host B.

Question124: A switch running STP can be converted to the Forwarding state after waiting for the forwarding delay in the Learning state.

Question125: As shown in the figure below, which of the following locations should the AH header be inserted in the IPsec transport mode?

Question126: Which of the following is the value of the IPv6 multicast address flag field indicates that the multicast address is permanent multicast address?

Question127: As shown in the network below, the MAC address of the switch is marked. Enter the command stp root secondary on the SWD switch. Which of the following switche will be the root bridge of this network?

Question128: As shown in the figure below, Host A and Host B cannot communicate.

Question129: In the OSPF protocol, which of the following description of the DR is correct? (Multiple Choice)

Question130: A Windows host is started for the first time. If the address cannot be obtained from the DHCP server, which of the following IP addresses may the host use?

Question131: The MPLS label header is encapsulated between the data link layer header of the message and the network layer header.

Question132: Which of the following statement about IPv6 address configuration is correct? (Multiple choice)

Question133: As shown in the following figure, which of the following configurations can be used to make Host A and Host B unable to communicate with each other? (Multiple Choice)

Question134: At present, the company has a network administrator. The AR2200 in the company network can be for remote management after directly enter the password through Telnet.
The company has two new network administrators, and wants to assign all administrators their respective usernames and passwords, as well as different permission levels. So what should do? (Multiple Choice)

Question135: If the command is executed on the router: user-interface maximum-vty 0, the following statement which is correct?

Question136: In the MAC address table of SWA and SWB, is the MAC address, VLAN and port correspondence correct?

Question137: What should I do when the trunk port sends a data frame?

Question138: Which type does the IPv6 address FE80::2E0:FCFF:FE6F:4F36 belong to?

Question139: OSPFv2 supports IPv6 by adding new types of LSAs.

Question140: When an IPv6 interface receives a packet whose Hop Limit class has a value of 1, the packet is not forwarded.

Question141: By default, in the SNMP protocol, which port number is used by the proxy process to send an alarm message to the NMS?

Question142: Which of the following packets belong to the OSPF protocol? (Multiple choice)

Question143: As shown in the figure, the network administrator creates VLAN 2 on the SWA and SWB, and configures the ports connected to the host on the two switches as access ports and assigns them to VLAN 2. Configure G0/0/1 of the SA and G0/0/2 of the SWB as trunk ports to allow all VLANs to pass. To achieve normal communication between the two hosts, he also needs ().

Question144: As shown in the following figure, the switch configuration information is as follows. Which of the following statements are correct? (Multiple Choice)

Question145: Two authentication domains "Area 1" and "Area 2" are configured on a router that serves as the authentication server. If the user authenticates with the correct username "huawei" and password "hello", which authentication domain will the user assigned to?

Question146: Which of the following authentication methods does not require to input a username and password?

Question147: As shown in the following figure, the router uses the 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 fulfill this requirement? (Multiple Choice)

Question148: Which statements are correct about IPv6 address configuration? (Multiple Choice)

Question149: In order to check whether the serial port S0/0/1 on the router is a DTE interface or a DCE interface, which of the following commands should be used?

Question150: What is the value of the protocol type field in the IP packet, indicating that the protocol is GRE?

Question151: In the RSTP standard, in order to improve the convergence speed, the port directly connected to the terminal by the switch can be defined as ().

Question152: As shown in the following figure, all routers run OSPF. Which device is ABR? (Multiple choice)

Question153: As shown in the following figure, Router A has passed the IP address 10.0.12.2 Telnet Router
B. In the current interface, which of the following operations will cause the Telnet session of the router to be interrupted with router? (Multiple Choice)

Question154: Static NAT can only implement one-to-one mapping between private addresses and public addresses.

Question155: The IP addresses of the VLANIF interfaces on the same switch cannot be the same.

Question156: A router OSPFv3 adjacency relationship is as follows. The router is an ABR.

Question157: The ACL on the AR G3 series router supports two matching sequences: configuration order and automatic sorting.

Question158: The router starts the FTP service. The username and password are both huawei, and the root directory of the FTP is set to flash:/dhcp/. Which of the following commands must be configured? (Multiple choice)

Question159: The Eth-Truk port in manual link aggregation mode, whose transmission rate is related to (). (Multiple choice)

Question160: On the broadcast network, both the DR and the BDR use the multicast address 224.0.0.6 to receive the link status update packet.

Question161: How many ways does VRP support to configure router? (Multiple choice)

Question162: Which is the correct statement about the static MAC address table? (Multiple Choice)

Question163: Which of the following PPPoE messages are sent non-unicast?

Question164: Which of the following SNMP messages is sent to the NMS by the agent on the managed device?

Question165: Which of the following protocol does not belong to the File Transfer protocol?

Question166: Which of the following states does the STP protocol elect to perform port roles?

Question167: As shown in the following figure, from the perspective of the security corner, Router A refuses to receive OSPF packets, GRE packets and ICMP packets received from G0/0/1. Which of the following commands can fulfill this requirement? (Multiple choice)

Question168: Which method VRP does not support to configure the router?

Question169: The DHCP server function is enabled on an interface of the router. Which of the following IP addresses may the DHCP client obtain?
interface GigabitEthernet0/0/1
ip address 11.0.1.1 255.255.255.0
dhcp select interface
dhcp server excluded-ip-address 11.0.1.2 11.0.1.127
#

Question170: Which of the following protocols can be used to avoid loops in a redundant Layer 2 network?

Question171: Which fields in the IPv4 header are related to sharding? (Multiple Choice)

Question172: In the switch, which of the following is the technology of port and MAC binding?

Question173: The Router-ID of OSPFv3 can be automatically generated by the system.

Question174: When configuring a static route on a broadcast interface, you can configure a static route by specifying the next hop address or outbound interface.

Question175: Which of the following packets is sent by the DHCPv6 client before sending a request packet to the DHCPv6 server?

Question176: Dynamic routing protocols can automatically adapt to changes in network topology.

Question177: Which of the following parameters does the LCP negotiation use to detect link loops and other anomalies?

Question178: Which of the following flow control methods can be used in the transport layer of the OSI reference model? (Muitiple choice)

Question179: What are the three main roles in the DHCPv6 basic protocol architecture? (Multiple choice)

Question180: In P2P network, DD packet does not need to be sent when the OSPFv3 adjacency is established.

Question181: Which of the following are the actions of the MPLS label? (Muitiple choice)

Question182: What message is sent when the STP downstream device notifies the upstream device of topology change?

Question183: In which of the following cases does the switch generate configuration BPDUs? (Multiple Choice)

Question184: An existing switch directly connects to a designated port of peer device through a port, but the port does not forward any message, but can receive the BPDU to monitor the network change. The role of the port should be?

Question185: When the host adopts DHCPv6 stateless autoconfiguration, which DHCPv6 message is sent by the host to request configuration information?

Question186: When forwarding a IPv6 packet, the router needs to find the routing table based on the source IP address of the IP6 packet.

Question187: In the OSI reference model, which of the following has the ability to perform end-to-end error detection and flow control?

Question188: As shown in the following figure, all hosts can communicate normally. What is the correct relationship between the SWBMAC address and the port?

Question189: When upgrading the router software using the FTP protocol, which transfer mode should be selected?

Question190: The network as shown in the following figure, when the network administrator performs traffic planning, it is expected that the packets sent by Host A to Host B will be connected to G0/0/3 interface between the routers. The packets sent by Host B to Host A go pass the G0/0/4 interface between routers. Which of the following commands can implement this requirement? (Multiple Choice)

Question191: Router 1 routing table output information is as follows, which is correct? (Muitiple choice)

Question192: A company network administrator wants to be able to remotely manage branch network devices. Which of the following protocols will be used?

Question193: Which of the following statements about the Spanning Tree Protocol Root Bridge election is correct?

Question194: On the serial interface, you can configure a static route by specifying the next hop address or outbound interface.

Question195: Because the TCP protocol uses three-way handshake mechanism when establishing and closing connections, TCP supports reliable transmission.

Question196: If an Ethernet data frame Length/Type=0x8100, which of the following ports might this data frame be sent from? (Multiple Choice)

Question197: When deploying an ACL on a Huawei device, which of the following description is correct? (Multiple choice)

Question198: Which of the following description is correct about the display information?

Question199: The aggregation port of the router can be configured with a routing subinterface.

Question200: A switch receives a data frame with a VLAN tag, but finds that the destination MAC address of the data frame is not queried in its MAC address table. which is the processing behavior of the switch for the data frame?

Question201: ICMP packets do not contain a port number, so NAPT cannot be used.

Question202:

Question203: Which of the following IPv6 addresses is a multicast address?

Question204: Regarding the main function of the router, which of the following statements are wrong? (Multiple Choice)

Question205: If the MAC address of an interface is 0EE0-FFFE-0FEC, what is its corresponding EUI-64 address?

Question206: As shown in the figure, the correct description about this network topology is ().

Question207: Which of the following is the value of the IPv6 multicast address flag field indicates that the multicast address is a temporary multicast address?

Question208: ip route-static 10.0.12.0 255.255.255.0 192.168.1.1
Which statement is true regarding this command?

Question209: The router output information is as follows, which of the following statement is wrong?

Question210: The output information of a sub-interface of a router aggregation port 1 is as follows. According to this information, which of the following statements are correct? (Multiple Choice)

Question211: What port states might exist on a switch with standard STP protocol enabled? (Multiple Choice)

Question212: Which of the following OSPF versions suit for IPv6?

Question213: IPv6 address 2001: ABEF: 224E: FFE2: BCC0: CD00: DDBE: 8D58 cannot be abbreviated. 。

Question214: In the process of establishing PPP link, which phase can be directly converted into by the Dead phase?

Question215: Which VLAN partitioning method is most appropriate when the host frequently moves the location?

Question216: As shown in the following figure, host C is only required to communicate with one of host A or host
B. Then, which command can be configured to implement the requirement under the G0/0/3 port of SWB?

Question217: The broadcast address of the subnet 192.168.1.0/25 is 192.168.1.128.

Question218: As shown in the figure below, what is the scope of AH protocol authentication in IPsec transmission mode?

Question219: Which of the following protocols is dynamic IGP routing protocol?