EMT Practice Test

1. Question Content...

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Question1: On an STP-enabled switch, a port in the forwarding state can receive BPDU packets.

Question2: Which of the following is NOT an open API of Huawei controllers?

Question3: The following configuration commands implement route backup on RTA for a route to the same destination
10.1.1.0.
[RTA] ip route-static 10.1.1.0 24 12.1.1.1 permanent
[RTA] ip route-static 10.1.1.0 24 13.1.1.1

Question4: Which of the following is a valid default route configuration?

Question5: The network administrator has decided to configure link aggregation in the enterprise network. Which of the following represent advantages of link aggregation?

Question6: By referring to the network structure and OSPF areas shown in the figure, it can be determined that all routers on the network except RTA are ABRs.

Question7: Which of the following methods can be used to add APs on an AC?

Question8: Refer to the following configuration of an interface on a switch. For which VLAN does the interface remove VLAN tags before forwarding data frames?
go
CopyEdit
interface GigabitEthernet0/0/1
port link-type trunk
port trunk pvid vlan 10
port trunk allow-pass vlan 10 20 30 40

Question9: Which of the following MAC addresses cannot be used as the MAC address of host network adapters?

Question10: What is the length range of an Ethernet_II frame that contains an Ethernet header?

Question11: Refer to the following VLAN configurations on a Huawei switch. Which of the following statements are true?

Question12: When a host uses the IP address 192.168.1.2 to access the Internet, NAT must be performed.

Question13: (By default, in the SNMP protocol, which port number is used by the proxy process to send alarm messages to the NMS?)

Question14: Which of the following packets are exchanged between STAs and an AP to obtain the AP's SSID before association with the AP?

Question15: When a switch receives a unicast data frame, if the destination MAC address of the data frame can be found in the MAC address table of the switch, the data frame is definitely forwarded through the port corresponding to the MAC address.

Question16: After the administrator performs the configuration shown in the figure on a router, which of the following commands can be used to specify a short lease for addresses assigned using DHCP?

Question17: In RSTP, an edge port becomes a common STP port after receiving a configuration BPDU.

Question18: According to OSI reference model, which layer is responsible for end-to-end error checking and flow control?

Question19: When an AP and an AC are located on different Layer 3 networks, which of the following methods is recommended for the AP when discovering the AC?

Question20: Which of the following statements about hybrid interfaces is true?

Question21: Which of the following traffic can be filtered by an advanced ACL on a Huawei device?

Question22: After a switch restarts, static MAC address entries saved on the switch remain in the MAC address table.

Question23: UDP does not guarantee data transmission reliability and does not provide packet sorting and traffic control functions. It is suitable for the traffic that has low requirements for data transmission reliability, but high requirements for the transmission speed and delay.

Question24: On the VRP CLI, files cannot be permanently deleted using the delete or delete /unreserved command. To permanently delete them, you need to delete the files in the recycle bin.

Question25: Which of the following operations are mandatory to restore the factory default settings of an AR2200 router?

Question26: Network devices running SNMP can proactively report traps to help network administrators detect faults in a timely manner.

Question27: Which of the following protocols can be used to prevent Layer 2 loops on a campus network?

Question28: Which of the following parameters is not contained in STP configuration BPDUs?

Question29: What is the default lease time of the IP address allocated by the DHCP server?

Question30: When the "delete vrpcfg.zip" command is run on the Huawei VRP user interface, the file can be permanently deleted only after it is cleared from the recycle bin.

Question31: Which of the following statements about switches is false?

Question32: On the network shown in the figure, VLAN 2 is created on SWA and SWB, and interfaces connected to hosts are access ports added to VLAN 2. G0/0/1 on SWA and G0/0/2 on SWB are trunk interfaces allowing all VLANs. What additional configuration is needed on SWC to ensure communication between Host A and Host B?

Question33: Which of the following VRP commands can be used to enter area 0 view?

Question34: The tree topology is a hierarchical star topology, facilitating network expansion. A consequence of this topology is that faults on a node at a higher layer are more severe.

Question35: On Huawei AR G3 Series routers, which authentication modes does AAA support?

Question36: A router in the backbone area has complete LSDBs of routers in other areas.

Question37: Refer to the graphic: 00e0-fc99-9999 is a specific host MAC address learned by a switch through ARP, and the host changes the IP address three times.

Is the following statement true or false?
"The MAC address 00e0-fc99-9999 is dynamically associated with multiple IP addresses."

Question38: Which of the following statements about the commands shown in the figure is true?
<Huawei>sys t ei-vi cv
[Huawei]user-interface console 0
[Huawei-ui-console0]history-command max-size 20

Question39: On the command line interface of Huawei AR routers, the role of the Save command is to save the current system time.

Question40: Which of the following ACLs can match the transport layer port number?

Question41: A trunk interface allows frames from multiple VLANs including VLAN 4096.

Question42: Which of the following statements are true about transport-layer protocols?

Question43: When a router is powered on, the router reads the configuration file saved in the default save directory to get itself initialized. If the configuration file does not exist in the default save directory, what does the router use to initialize itself?

Question44: The following figure shows the configuration of a sub-interface on a router. For which VLAN does the sub- interface receive tagged data frames?

Question45: On the network shown in the figure, Host A and Host B cannot communicate with each other.

Question46: A company applies for a class C IP address for subnetting. It has six branches and the largest branch should have 26 hosts. What would be an appropriate subnet mask for the largest branch?

Question47: Which of the following parts compose SNMP?

Question48: The rules in an ACL may overlap. If packets match the rules with loose conditions, the later ACL rules are not processed. In this case, packets cannot match the rules with strict conditions. Therefore, the rules with strict conditions must be arranged in front lines and those with loose conditions must be arranged towards the end.

Question49: Refer to the display startup command output shown in the figure. Which of the following statements are true?

Question50: Only one SSID can be bound to each radio of an AP.

Question51: In STP, the bridge ID on the switching network is as follows. With which of the following bridge IDs is the switch selected as the root bridge?

Question52: Which of the following sources of routes can be obtained by a router?

Question53: (Which of the following is a dynamic IGP routing protocol?)

Question54: (ICMP packets do not contain port numbers. Therefore, NAPT cannot be used.)

Question55: On the VRP, when the mkdir test command is run, the system creates a directory named test.

Question56: As shown in the figure, the configuration of Router A is as follows. Which of the following statements is/are incorrect?

Question57: The priority of static routes cannot be manually specified.

Question58: What is the total length of the port ID in STP?

Question59: What are the advantages of OSPF?

Question60: How many bytes are there in a basic IPv6 header?

Question61: The network administrator performs the configuration shown in the following figure on RTA. If a user needs to be authenticated in the authentication domain named huawei, which of the following statements is true?

Question62: Which of the following statements about the routing table shown in the figure are true?

Question63: A Layer 2 ACL can match information such as the source MAC address, destination MAC address, source IP address, and destination IP address.

Question64: Wi-Fi 6 is also known as the IEEE 802.11ax standard.

Question65: Which of the following is a link-state routing protocol?

Question66: Which of the following is not a common network layer in a midsize campus network?

Question67: Which of the following descriptions regarding the TTL field of the IP packet is correct?

Question68: The load balancing modes at both ends of an Eth-Trunk can be different.

Question69: If the packet matches the deny rule in an ACL, the packet is discarded.

Question70: With what kind of routers does a DRother router exchange link state information and route information?

Question71: RADIUS is a common protocol for implementing AAA.

Question72: (You can run the "pwd" and "dir" commands on the Versatile Routing Platform (VRP) to view file information in the current directory.)

Question73: Trunk interfaces can send both tagged and untagged frames.

Question74: A switch receives a unicast data frame with a VLAN tag but cannot find the destination MAC address of the data frame in its MAC address table. In this case, which action will the switch take?

Question75: The data link layer uses PPP encapsulation. The IP addresses of the two ends of the link can be in different network segments.

Question76: Which of the following network types are supported by OSPF?

Question77: VLAN 4095 is reserved for system use and VLAN 1 cannot be deleted on Huawei switches.

Question78: An administrator wishes to configure a floating static route. In order to successfully achieve this, which operation should be performed?

Question79: In STP, which of the following items may affect the selection of the root switch?

Question80: Which of the following port states is not included in Rapid Spanning Tree Protocol (RSTP)?

Question81: Which is a valid EUI-64 address?

Question82: Refer to the captured three packets shown in the figure. Which of the following statements is false?

Question83: If the value of the "Type/Length" field of an Ethernet data frame is 0x0800, the length range of the upper- layer packet header carried by the data frame is from 20B to 60B.

Question84: According to the VTY user interface configuration shown in the following figure, the user level is set to 3.

Question85: As shown in the figure, all switches run STP. Assume that the path cost of all ports is 200. What is the root path cost contained in the configuration BPDU received by G0/0/4 on SWD?

Question86: You can run the user-interface maximum-vty command to configure the maximum number of users who can log in to the device through Telnet simultaneously.

Question87: When the ACL in the following figure is configured on a Telnet server, only the device with an IP address of
172.16.105.2 can remotely log in to the Telnet server.
bash
Copy code
acl number 2000
rule 5 permit source 172.16.105.2 0

Question88: It is advised to assign static IP addresses to servers during campus network planning.

Question89: Which of the following fields are contained in an ARP packet?

Question90: (Which of the following descriptions regarding the STP forwarding state is incorrect?)

Question91: Only the WPA2-PSK security policy supports TKIP data encryption.

Question92: Which of the following configurations can prevent Host A and Host B from communicating with each other?

Question93: (An administrator cannot log in to a Huawei router through Telnet, but other administrators can log in to the router. Which of the following are possible causes?)

Question94: < Huawei > system-view
[Huawei]command-privilege level 3 view user save
Refer to the command output. What is the result of the shown command?

Question95: While inspecting packets in the network, a network administrator discovers a frame with the destination MAC address of 01-00-5E-A0-B1-C3. What can the administrator determine from this?

Question96: If the network administrator assigns the IPv4 address 192.168.1.1/28 to a host on the network, how many hosts can be added to the network where the host resides?

Question97: Which of the following advantages is/are provided by inter-VLAN routing in one-arm routing mode?

Question98: For an Eth-Trunk in LACP mode, what is the default LACP system priority of a Huawei switch?

Question99: In RSTP, a backup port can replace a faulty root port.

Question100: VLANs can be assigned based on service types during campus network planning.

Question101: Which of the following network parameters can be allocated using DHCP?

Question102: To provide the information about the IP addresses that a user packet traverses along the path to the destination, which of the following does Tracert record in each expired ICMP TTL packet?

Question103: In the case of Huawei routers, what is the "-i" parameter in a Ping command issued on a VRP operating system used to set?

Question104: During STP calculation, the port cost is associated with the port bandwidth by default. Which of the following statements about the relationship between port cost and port bandwidth is true?

Question105: Which of the following parameters is used to elect the root bridge in STP?

Question106: (An Eth-Trunk interface can be used only as a Layer 2 interface.)

Question107: How many VLANs are created when using the following commands?
vlan batch 10 20
vlan batch 10 to 20

Question108: As shown in the figure, RTA uses NAT and has an address pool configured to implement many-to-many non- NAPT address translation, so that hosts on the private network can access the public network. Assume that the address pool has only two public IP addresses, which are translated for Host A and Host B. If Host C wants to access the public network, which of the following statements is true?

Question109: Loops may cause broadcast storms on a Layer 2 network.

Question110: Which SNMP version focuses on two main aspects, namely security and administration? The security aspect is addressed by offering both strong authentication and data encryption for privacy. The administration aspect is focused on two parts, namely notification originators and proxy forwarders.

Question111: What is the protocol number of OSPF at the network layer?

Question112: Fit APs can provide wireless services independently of an AC.

Question113: Which of the following statements is true about link aggregation in manual load balancing mode?

Question114: Which of the following is not a characteristic of small campus networks?

Question115: Which of the following is not a type of OSPF LSA?

Question116: Which of the following OSPF packets can be sent to request the locally missing LSAs?

Question117: The TCP protocol uses the three-way handshake mechanism to establish and disable connections. Therefore, TCP supports reliable data transmission.

Question118: (Which of the following methods can be used to assign service VLANs during campus network planning?)

Question119: The following figure shows the display interface Eth-Trunk 1 command output on a switch. Which of the following commands can be used to delete Eth-Trunk 1?

Question120: Which of the following is the default port number of the Telnet server?

Question121: For STP, the default root path cost of the root bridge is 0.

Question122: Network Address and Port Translation (NAPT) allows multiple private IP addresses to be mapped to the same public IP address through different port numbers. Which of the following statements about port numbers in NAPT is true?

Question123: Which of the following parameters is used to elect the root bridge in STP?

Question124: Refer to the network diagram.

Which of the following statements describes the network shown?

Question125: Which of the following statements about static routes on Huawei devices is false?

Question126: (The administrator performs the configuration shown in the figure on a router, and a host is connected to Gi/0
/0 of the router. Which of the following statements is true about the IP address obtained by the host through DHCP?)

Question127: Assuming that OSPF has been enabled on all routers in the following figure, which router is the BDR on this network?

Question128: Which of the following commands sets the data forwarding mode on an AC to direct forwarding?

Question129: (Which of the following routing protocols are dynamic routing protocols?)

Question130: If the application-layer protocol is Telnet, what is the value of the "Protocol" field in the IPv4 header?

Question131: On the network shown in the figure, router A adopts link aggregation in manual load balancing mode, and G0
/0/1 and G0/0/2 are added to link aggregation group (LAG) 1. Which of the following statements is false about Eth-Trunk 1 on router A?

Question132: (Each network device running SNMP runs an agent process locally.)