EMT Practice Test

1. Question Content...

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Question1: WEP The encrypted data algorithm uses () algorithm.

Question2: How many management nodes () does eSight Standard Edition support at most?

Question3: original 802.11 What is the working frequency band used by the agreement ()?

Question4: Terminal is different VLAN The roaming within belongs to ().

Question5: Which of the following options are 802.11b/g What are the differences between the agreements? (Select 3 Answers)

Question6: WLAN When configuring the network, WMM Which of the following templates should the template be bound to ()?

Question7: exist WDS One in the network Root AP Can connect multiple Leaf AP , But a Leaf AP Only one can be connected Root AP .

Question8: BSS Which two basic service sets are included ()? (Select 2 Answers)

Question9: Which of the following options is correct ()? (Select 3 Answers)

Question10: As a guarantee WLAN There will be no interference between the various channels of the network, which of the following frequency bands belong to China5.8GHz Use frequency band()? (Select 2 Answers)

Question11: About Huawei WLAN Description of the characteristics of the product, the following statement is correct ().

Question12: Which of the following protocols can support at the same time 2.4GHz Frequency band and 5GHz Frequency band()?

Question13: 2.4 GHz How many channels () can the frequency band be divided into at most?

Question14: Which of the following commands can be used to clear counter statistics?

Question15: AP If you want to pass DNS Server fetch AC of IP Address, first get your own IP address,DHCP Server and DNS of IP address.

Question16: Among the following encryption methods, the most secure is ()

Question17: If it is turned on on the switch PoE The function of this, you can no longer access traditional equipment on these interfaces.

Question18: Huawei eSight Network management wizard-style configuration WLAN Business needs to be added in the network management first AC equipment.

Question19: For shared key authentication, the error described below is ().

Question20: If you want to create an open authentication security template, the following correct configuration is ().

Question21: If connected to the same SSID Of wireless clients want to start from a AP Roam to another AP, Then two AP The area where the signal overlaps between. What is the general range ()?

Question22: Which two of the following are PoE The power supply standard ()? (Select 2 Answers)

Question23: WIDS Attack detection contains ().
(Select 3 Answers)

Question24: What series of Huawei switches () is the Huawei plug-in controller ACU board suitable for?
(Select 3 Answers)

Question25: For outdoor long-distance point-to-point backhaul, the antenna of () should be selected.

Question26: 802.11b is a protocol based on Orthogonal Frequency Division Multiplexing (OFDM for short) technology

Question27: AC6605 supports three ways to establish AP and AC intercommunication, what are the differences ()?
(Select 3 Answers)

Question28: The following description of the classification and functions of Huawei APs, the correct statement is ().
(Select 3 Answers)

Question29: Which of the following agreements are IEEE customized 802.11 standard() ? (Select 3 Answers)

Question30: The 802.11 physical layer standard defines some common operations on the physical layer of wireless networks: such as QoS, security, and roaming operations.

Question31: In order to facilitate management and maintenance, AP The power supply mode is generally preferred to select () for power supply.

Question32: Which of the following types of frames does a STA send to obtain surrounding wireless network information during active scanning?

Question33: There are three ways to judge Huawei's load balancing: traffic mode, session mode, and virtual switching mode.

Question34: and 802.11a/b/g The standards are different, 802.11n Protocol is dual-frequency working mode (support 2.4GHz and 5GHz Two working frequency bands).

Question35: about AP6610DN , The following statement is wrong ().

Question36: QoS What kinds of service models are included ()
(Select 3 Answers)

Question37: AP able to pass POE The switch performs power supply and data transmission.

Question38: Compared with 802.11a/b/g, the technical advantages of 802.11n include which of the following aspects ()?

Question39: In the following command (), you can view the current version information.

Question40: Which of the following ports can only belong to 1 Piece VLAN ().

Question41: Which of the following authentication modes belong to link authentication?

Question42: The following () service model can provide end-to-end QoS services, but the scalability is not good.

Question43: Which configuration methods does the wireless controller support ()?
(Select 3 Answers)

Question44: Huawei AC6605 What is the command to switch between the wired side and the wireless side ()?

Question45: AP What are the reasons for being unable to go online ()?
(Select 3 Answers)

Question46: eSight The network management is Huawei's dedicated network management platform, but it can only manage Huawei's own equipment.

Question47: User number 300 People, concurrency rate 70% , Terminal support 2.4GHz and 5GHz Frequency band, in accordance with each AP Maximum number of dual-band access users40 people Consider, need at least () AP Able to meet capacity requirements?

Question48: If there is a high demand for WLAN capacity in a coverage area, the construction method of () should be considered.

Question49: If the terminal supports 5GHz and 2.4GHz Function, then AP Can be configured to control this kind of terminal priority access 5GHz .

Question50: an examination AC What is the command for online users ()?

Question51: Capacity planning mainly starts from the aspects of equipment performance, number of users, bandwidth requirements, and wireless environment, and estimates the amount required to meet the business volume. AP number quantity.

Question52: The following figure shows the hardware structure of an AirEngine 5760-51. Which of the following statements is true?

Question53: The following command can configure the port of the Huawei switch as hybrid model()?

Question54: After one data frame is sent and confirmed, what is the time interval to wait before sending the next data frame ()?

Question55: 802.11g What rates can be supported?

Question56: 802.11n exist 20M How many sub-carriers can be used to transmit data in the mode ()?

Question57: Which of the following statements about antenna gain are true?

Question58: thin AP Find AC In the process, the first step is AP Check if there is pre-configured static AC of IP List.

Question59: What are the general methods to solve co-channel interference (). (Select 3 Answers)

Question60: Regarding the two major PoE standards, the following statement is incorrect ().
(Select 2 Answers)

Question61: AP The systematic process of radio frequency resource management is ().

Question62: By a wireless AP And what is the network of associated wireless clients called ()?

Question63: Which of the following statements is true about shared key authentication?

Question64: about" AP6010DN

Question65: Configuration AP Authentication mode, AP What are the supported authentication methods ()? (Select 3 Answers)

Question66: Among the following obstacles, () has the largest loss of wireless signals.

Question67: For areas with roaming needs, adjacent AP Coverage remains 50% The above overlap to ensure that the terminal is AP Smooth switching between.

Question68: about 5G The working principle of priority, the following statement is correct ().

Question69: 290. In huawei eSight In the network management, add WLAN Equipment methods include (). (Select 3 Answers)

Question70: exist WLAN In the networking configuration, finally AC6605 What command must be executed to send the configuration to AP1 middle()?

Question71: Huawei Box Wireless Controller AC6605 support twenty four Piece PoE Interface in WLAN Can be directly connected when networking AC of AP Make a supply Electricity.

Question72: Which of the following types of frames is the 802.11 ACK frame?

Question73: Fill in Blanks
When collecting fault information, you need to collect device logs, including ___ logs and ___ logs.

Question74: Is the following statement about the introduction of frequency planning correct ()?
(Select 2 Answers)

Question75: CCMP Encryption ratio TKIP Encryption security is high because of ().

Question76: 802.11 What parameters are used in the frame to reorganize the frame segment ()?

Question77: Which of the following 802.11 control frames is sent by a STA to acquire the right to the wireless medium?

Question78: 179.CCMP The algorithm used for encryption is ().

Question79: because 802.11a The maximum rate supported is the same as 802.11g. The maximum rate supported is the same, so 802.11a Protocol is backward compatible 802.11g Agreement.

Question80: What are China's mandatory standards for wireless LAN security ()?

Question81: Radio frequency mainly uses spread spectrum technology. Which of the following technologies belong to spread spectrum technology ()? (Select 2 Answers)

Question82: 802.11b Which channels in the protocol do not overlap each other()? (Select 3 Answers)

Question83: According to the following output, the correct statement below is ().
<Quidway> display version
Huawei Versatile Routing Platform Software
VRP (R) software, Version 5.70 (AC6605 V200R001C00)
Copyright (C) 2003-2012 Huawei TECH CO., LTD
Quidway AC6605-PWR Routing Switch uptime is 0 week, 1 day, 23 hours, 33 minutes H852V26S 0(Master): uptime is 0 week, 1 day, 23 hours, 33 minutes
512M bytes DDR Memory
128M bytes FLASH
Check the running status of the AC6605.
(Select 3 Answers)

Question84: single AP What is the area covered ()?

Question85: In an 802.11 frame, what kind of control message () should be sent by the terminal to obtain access to the wireless medium?

Question86: 2.4 GHz What is the frequency band US non-overlapping channel ()?

Question87: Which of the following wireless frames are control frames ()? (Select 3 Answers)

Question88: 2.4 GHz What is the distance between the center frequencies of the channels in the frequency band ()?

Question89: Defined WLAN Medium service quality 802.11 The agreement is ().

Question90: A company wants to deploy WLAN, the company has purchased a batch of wireless APs that support 802.11n, when WLAN is deployed, only support Only 802.11n wireless clients can connect to the company's WLAN

Question91: AAA It is a management framework, which is commonly used to implement () protocol.

Question92: TKIP Encryption ratio WEP Encryption security is high because of (). (Select 3 Answers)

Question93: WLAN When configuring the network, WMM Which of the following templates should the template be bound to ()?

Question94: 802.11g What is the bandwidth of each channel of the frequency band ()?

Question95: Which of the following 2.4GHz The frequency bands are non-overlapping
channels (). (Select 3 Answers)

Question96: WLAN AP It can be powered by ().
(Select 3 Answers)

Question97: Which of the following statements is true about the coverage distance design principles of a single AP (20 dBm)?

Question98: A 10 Floors of buildings need to be covered WLAN Signal, because taking into account the floor block, which can be set to 6 channel.
5,6 Layered WLAN Signal frequency

Question99: exist WDS In the deployment, what kinds of bridge networking modes are included ()? (Select 3 Answers)

Question100: Which of the following options are the basic functions of configuring Huawei wireless controllers ()? (Select 3 Answers)

Question101: AP There are several types of domain deployment (). (Select 3 Answers)

Question102: The following figure shows the WLAN topology of an enterprise. If the direct forwarding mode is used without taking policy-based routing into account, which of the following paths may be used on the network?

Question103: Which of the following types of frames does a STA receive to obtain surrounding wireless network information during passive scanning?

Question104: If one BSS Totally by STA Composition, then BSS What is also called ()?

Question105: To obtain better coverage, try to use AP Signal can ( ) Through the wall.

Question106: Metal objects have a greater attenuation effect on wireless signals, AP Or the antenna should not be placed behind a metal ceiling, etc.

Question107: ETSI Which country or region is the standards organization ()?

Question108: 802.11a What kind of technology is used to implement the agreement?

Question109: A large number of devices appear AP and AC How to deal with the version mismatch failure ().

Question110: 802.11 Wireless LAN CSMA/CA Which of the following are included in the mechanism ()? (Select 3 Answers)

Question111: The index used to describe the degree of antenna convergence of the transmit power is (

Question112: Which of the following functions does the Huawei WLAN planning tool have ()?
(Select 3 Answers)

Question113: Each AC Equipment needs to be specified AC The source of IP Address for peace AP Establish CAPWAP Tunnel, one AC You can specify up to 2 Piece WLAN source IP.

Question114: Point-to-point wireless bridges can be used to connect two networks located at different locations. In the wireless backbone connection, they are set to different channels. Root AP and Leaf AP Should be set

Question115: Which of the following standards organizations implements WLAN technical interoperability for WLAN equipment certification ()?

Question116: DSSS The modulation methods used are BPSK and QPSK .

Question117: According to the following configuration example, the following statement is correct ().
[AC] dhcp enable
[AC] interface VLANif100
[AC-VLANif100] ip address 10.1.100.1 24
[AC-VLANif100] dhcp select interface
[AC-VLANif100] quit

Question118: When coverage area 2.4GHz Frequency band 1 When channel interference is large and severe, adjust the device to 3 Channel, can effectively reduce interference.

Question119: Huawei Wireless Controller AC6605 The upgrade operation can only be performed on the wired side of the controller.

Question120: In a point-to-multipoint networking environment, one device serves as the central device, and all other devices only establish wireless bridges with the central device to realize the interconnection of multiple networks. The disadvantage is that the intercommunication of multiple branch networks must be forwarded through the central bridge device.

Question121: To the following WLAN In the description of the network diagram, the error is ().

Question122: 802.11 In the frame, RTS and CTS What is the interframe interval between ()?

Question123: The AirEngine 5760-22W can be used as a wall plate AP or a remote unit (RU) in Huawei's Agile Distributed Wi-Fi Solution.

Question124: According to the different signal parameters controlled, what modulation methods can be divided into ()? (Select 3 Answers)

Question125: WLAN The signal passes through which of the following materials with less penetration loss (). (Select 2 Answers)

Question126: The following description about dual-link backup networking is incorrect ()

Question127: 802.11 In the frame, it means that the wireless station AP When sending a signal, To DS and From DS What are the values of ()?

Question128: Which of the following are the relevant parameters of the Traffic template ().
(Select 2 Answers)

Question129: create radio-profile Must be bound wmm-profile Only possible, otherwise there will be configuration errors.

Question130: PPPoE Certified in WLAN When used, and WLAN The authentication encryption used by itself does not matter.

Question131: CAPWAP The agreement is made by IEEE Standards organization in 2009 year 4 One of the month WLAN Standard for AC And thin AP Communication between.

Question132: WLAN The commonly used radio frequency cables in the system are (). (Select 3 Answers)

Question133: The following statement is correct ().
(Select 3 Answers)

Question134: Which of the following is a restart AC6605 The command()?

Question135: Which of the following technologies work at 5 GHz ()? (Select 2 Answers)

Question136: The following figure shows the WLAN topology of an enterprise. If the tunnel forwarding mode is used, which of the following paths may be used on the network?

Question137: The MEth0/0/1 interface of AC6605 is used for in-band network management. The default address is: 192.168.1.1/24, and it cannot be modified.

Question138: Which of the following devices belong to Huawei Wireless Dual Band AP(Access Point )?
(Select 2 Answers)

Question139: AC Perform the load balancing process according to () information.

Question140: AP The size of the coverage area is controlled by ().
(Select 2 Answers)

Question141: In a large wireless network deployment scenario, AC When configured to "Layer 3 networking + bypass mode + direct forwarding", the gateway of the wireless user should. Where is it located ()?