EMT Practice Test

1. Question Content...

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Question1: MIB (Management Information Base) is a virtual database that exists only in NMS.

Question2: 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?

Question3: Which of the following statements about link aggregation is correct?

Question4: What is the range of VLAN ID that users can use?

Question5: In the VRP interface, use the command delete vrpcfg.zip to delete a file, which must be emptied in the recycle bin to completely delete the file.

Question6: What is the value of the Type field in the RStp configuration BPDU message?

Question7: 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?

Question8: 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?

Question9: The link aggregation interface can only be used as a Layer 2 interface.

Question10: What is the value of TPID defined by IEEE802.1Q?

Question11: The network management system can only view the operating status of the device through the SNMP protocol, but cannot issue configurations.

Question12: In the VRP interface, use the command startup saved-configuration backup.cfg to configure the startup.cfg file for the next startup.

Question13: Static NAT can only achieve one-to-one mapping between private addresses and public addresses.

Question14: Switches running SIP protocol, the port needs to wait for the forwarding delay in the Learning state before it can be transformed into the Forwarding state.

Question15: The MAC address table of the existing switch is shown in the figure. Which of the following statements are correct?

Question16: As shown in the figure, the switch runs STP with default parameters, which of the following ports will be elected as the designated port?

Question17: Which of the following SNMP packets are sent to the NMS by the Agent on the managed device?

Question18: 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?

Question19: 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?

Question20: 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?

Question21: What is the priority value of the direct route entry?

Question22: The Layer 2 networking of WLAN means that the STA uses the AC as its gateway.

Question23: As shown in the information in the figure, when learning this switch needs to forward the frame with the destination MAC address of 5489-98ec-f011, which of the following description is correct?

Question24: 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?

Question25: The configuration information of a certain port of the switch is shown in the figure. Which of the following statements is wrong?

Question26: The configuration of the country code will affect the actual transmission frequency and maximum transmission power.

Question27: The origin of SDN is the separation of transfer and control. The separation of transfer and control is a way to realize SDN, not the essence.

Question28: Which of the following commands can be used to view the router's CPU usage?

Question29: By default, the bridge priority of Huawei switches is 32768.

Question30: UDP cannot guarantee the reliability of data transmission, and does not provide the functions of message sequencing and flow control. It is suitable for flows with low transmission reliability requirements but high transmission speed and delay requirements.

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

Question32: On interfaces that use PPP as the data link layer protocol, you can configure static routes by specifying the next hop address or outbound interface.

Question33: In IPv4 networks, AP supports static and DHCP methods to obtain IP addresses.

Question34: The correct description of the information as shown in the figure is ().
[R1]display interface go/0/o
GigabitEthernet0/0/0 current state: Administratively DOWN Line protocol current state: DOWN

Question35: 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.

Question36: Telnetlib is a module that implements the Telnet protocol that comes with Python.

Question37: What kind of message does the OSPF protocol use to discover and maintain neighbor relationships?

Question38: If STP is not turned on for the network composed of switches, there must be a Layer 2 loop.

Question39: Both pwd and dir commands in the VRP operating platform can view the file information under the current directory.

Question40: Which of the following does not include the advantages of Wi-Fi 6 compared to Wi-Fi 5?

Question41: FAT AP can independently complete wireless user access, wireless user authentication, and business data forwarding without AC.

Question42: Which of the following statements about the edge port in the RSTP protocol is correct?

Question43: In the campus network planning, which of the following ways can business VLAN be divided?

Question44: What command views exist in the VRP operating platform? (Multiple choice)

Question45: At present, the company has a network administrator, and the AR2200 in the company network can be remotely managed by directly entering the password through Telnet. After the two new network administrators arrived, the company hopes to assign their own user names and passwords to all administrators, as well as different levels of authority. So how should it be done? Multiple choices

Question46: What are the advantages of the OSPF protocol? (Multiple Choice)

Question47: Which of the following types of addresses is not included in IPv6 addresses?

Question48: Which field of the ipv6 packet header can be used for QoS?

Question49: What is the data link layer MAC address of each VAP on the AP?

Question50: 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?

Question51: How many more bytes are the packets using MPLS label double-layer nesting technology than the original IP packets?

Question52: 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?

Question53: The Router ID of the OSPF process takes effect immediately after modification.

Question54: 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.

Question55: What is the main function of the DNS protocol?

Question56: To query the configuration information of the device's OSPF protocol, which of the following commands can be used? (Multiple Choice)

Question57: If the Ethernet data frame Length/Type=0X0806, which of the following statement is correct? (Multiple choice)

Question58: Which of the following networks belong to a local area network? (Multiple choice)

Question59: For the description of the PPP link establishment process, which of the following statement is wrong?

Question60: 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)

Question61: 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?

Question62: CSS refers to the combination of two switch devices that support cluster features and logically combine them into one switch device.

Question63: The two switches shown in the figure below have both enabled the STP protocol. Which port will eventually be in the Blocking state?

Question64: 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?

Question65: Which of the following statement about Python is incorrect?

Question66: Which of the following types does IPv6 address contain?

Question67: Which of the following descriptions about spanning tree designated ports is correct?

Question68: In standard STP mode, which of the following non-root switches will forward the TC set BPDU generated by the root switch?

Question69: In the network shown in the figure below, from a security perspective, router A refuses to receive OSPF packets and ICMP packets received from the cO/0/1 interface. Which of the following commands can achieve this requirement? (Multiple Choice)

Question70: What is the destination IP address of the DHCP DISCOER message?

Question71: Which of the following descriptions about wireless devices is correct?

Question72: In the VRP interface, use the command startup saved-configuration backup.cfg. to configure the backup.cfg file for the next startup.

Question73: Which of the following OSPF protocol packets can ensure the reliability of LSA updates?

Question74: When the LACP mode is used for link aggregation, what is the default system interference level of Huawei switches?

Question75: 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)

Question76: The tracert diagnostic tool in Huawei routers is used to track the data forwarding path.

Question77: What frequency does IEEE 802.11n support? (Multiple Choice)

Question78: 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?

Question79: RADIUS is a common protocol to implement AAA.

Question80: 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?

Question81: VRP operating platform, which of the following commands can only view static routes?

Question82: Which stage of the life cycle of campus network construction is the beginning of a project?

Question83: In the network shown in the figure, which of the following description is correct?

Question84: 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?

Question85: AC uses CAPWAP control tunnel to transmit management messages to FIT AP.

Question86: 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)

Question87: Which of the following statements about Prefix Segment is wrong?

Question88: When Huawei switches allow STP, the priority of the switch is by default:

Question89: Which of the following methods can read data non-blocking in Python's telnetlib?

Question90: 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)

Question91: Which of the following does not be included in AAA?

Question92: By default, what is the STP Forward Delay time in seconds?

Question93: 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?

Question94: On Huawei AR G3 routers, what is the -i parameter of the Ping command in VRP used to set?

Question95: What percentage does the DHCP client expect to send the lease renewal message for the first time?

Question96: The routing table is shown in the figure. Which of the following statements is correct? (Multiple choice)

Question97: 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)

Question98: Which of the following statement about static routing is wrong?

Question99: 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.

Question100: If the Proto of a certain route information in the routing table is Direct, the priority of this route is set to 0.

Question101: 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?

Question102: Which of the following characteristics does the OSPF protocol have? (Multiple Choice)

Question103: Which of the following refers to network communication? (Multiple choice)

Question104: Which of the following description about the Router ID of OSPF is incorrect? (Multiple Choice)

Question105: Which of the following statements about Adjacency Segment is wrong?

Question106: The OSI reference model from high-level to bottom-level is ().

Question107: 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?

Question108: Regarding the control plane of the device, which of the following statements is correct? (Multiple choice)

Question109: Complete the ACL configuration shown in the figure on the router RTA, which of the following description is correct?

Question110: 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)

Question111: Which of the following parameters is not included in the configuration BPDU of the STP protocol?

Question112: In what state does the OSPF protocol determine the master-slave relationship of DD packets?

Question113: In the WLAN architecture, the FIT AP cannot work independently and needs to be managed by the AC. Which of the following protocols are used to communicate between FIT AP and AC?

Question114: As shown in the figure below, which of the following statement is correct?

Question115: The IEEE 802.11ac standard only supports the 5GHz frequency band.

Question116: Which of the following descriptions about the switch is wrong?

Question117: Which of the following authentication methods does not require the user name and password?

Question118: The route entry 10.0.0.24/29 may be aggregated from which of the following subnet routes? (Multiple Choice)

Question119: Which field is added to the IPv6 packet header than the IPv4 packet header?

Question120: Which of the following statements about the division of OSPF protocol area is wrong?

Question121: Which layer of the OSI reference model does the router work at?

Question122: 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?

Question123: Regarding the corresponding relationship between the access control list number and type, which of the following description is correct?

Question124: 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)

Question125: Which of the following advantages does the router-on-a-stick approach achieve routing intercommunication between VLANs?

Question126: Which of the following advantages does router-on-a-stick achieve inter-VLAN routing intercommunication?

Question127: Switch stacking supports more than two devices. Through stacking, multiple switches can be grouped into one logical device.

Question128: How many types of OSPF messages are there?

Question129: 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

Question130: Trunk ports can allow multiple VLANs to pass, including VLAN4096.

Question131: In the switch MAC address table, which of the following entries will not age?

Question132: 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?

Question133: 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?

Question134: If the network address of a network is 10.1.1.0/30, what is its broadcast address?

Question135: The network administrator hopes to effectively use the IP address of the 192.168.176.0/25 network segment. Now that the company's marketing department has 20 hosts, which of the following is the best address segments allocated to the marketing department?

Question136: 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: