EMT Practice Test

1. Question Content...

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Question1: The message used by STA to terminate the authentication relationship is?

Question2: Which of the following operation methods can reduce signal interference? (Multiple choice)

Question3: In point-to-point (PtP) wireless transmission, the most suitable antenna type is?

Question4: Which of the following descriptions of PAP product E PoE power supply requirements is correct? (Multiple choice)

Question5: For coverage planning with a small radius and multiple areas for concurrent users, which of the following statement is correct? (Multiple choice)

Question6: Which of the following are related certification training about WLAN? (Multiple choice)

Question7: What is the purpose to use waterproof tape to waterproof and seal each joint part of the antenna?

Question8: On the H3C wireless controller, wireless users connected under the same SSID can be assigned to different VLANs. The specific implementation methods are ______. (Multiple choice)

Question9: Which of the following are concerned about the survey elements? (Multiple choice)

Question10: When locating the problem of unsuccessful registration of FIT AP, you can analyze the relevant LWAPP information on the debugger on AC or FIT AP. What is the recommended debug command? (Multiple choice)

Question11: The 802.11 protocol is essentially to provide a link layer access service for wireless clients. If you need to query the IP address of the wireless client, which of the following commands can be used?

Question12: The convenience of FIT AP network deployment and implementation is that the AP can be plug and play. Before installing the AP, which of the following operations are recommended? (Multiple choice)

Question13: On the COMWARE platform of H3C series products, when using the ping g command, which of the following parameters can be used to specify the number of ICMP messages sent?

Question14: When the H3C AP is directly connected to a wireless switch or connected through a Layer 2 network, the correct registration steps are?
1. The AP sends out a Layer 2 broadcast discovery request message to try to contact a wireless switch
2. The AP downloads the latest software version and configuration from the wireless switch
3. The wireless switch that receives the discovery request message will check whether the AP has the permission to access the machine, and if so, it will respond with a discovery response
4. The AP obtains an IP address through the DHCP server
5. The AP starts to work normally and exchanges user data packets with the wireless switch

Question15: What is the correct operation steps for configuring the radio 1 channel of AP1 to 6 in the H3C wireless controller?

Question16: Which of the following statement is correct? (Multiple choice)

Question17: The maximum transmit power of indoor WLAN equipment is generally not to be exceeded ___.

Question18: When planning a WLAN network, the first thing that should be considered is the effective interaction of wireless signals between the P AP and the wireless terminal, followed by the effective broadband of the access user.

Question19: T FAT/FIT operation mode is smoothly switched C H3C wireless access point device unique specifications, which of the following P AP series have switching capability? (Multiple choice)

Question20: When the H3C P AP establishes a wireless bridging application, you can use the command "[h3c--hidecmd] display wlan mesh neighbors all" to view all neighbor information of the current device. The following is the peer neighbor device information viewed on the local device.
Mesh Neighbor Parameters According to the above output, which of the following descriptions are correct? (Multiple choice)

Question21: What are the significance of network surveys? (Multiple choice)

Question22: Which of the following statements about indoor PAP installation specifications is correct? (Multiple choice)

Question23: What are the main models of H3C WA1208E? (Multiple choice)

Question24: What is thhe correct implementation steps for wireless network optimization?

Question25: Power management is an important attribute of wireless terminals. It will choose a balance between power consumption and adapter performance, which will affect the user's network experience. For example, usually the power management attribute of the Inter wireless network card is set to _______ to give full play to the maximum performance of the network card.

Question26: Regarding the local forwarding function of FIT AP, which of the following statements are correct? (Multiple choice)

Question27: Which of the following commands can view the detailed information in the H3C wireless controller, such as the IP address obtained by the AP?

Question28: Which of the following descriptions of electromagnetic waves is correct? (Multiple choice)

Question29: In order to increase the universal type, the FIT AP version of wireless products will no longer be released separately, and they will all be included in the corresponding controller version package file.

Question30: Which of the following statements about outdoor PAP installation specifications are correct? （ Multiple choice)

Question31: Which of the following descriptions of C H3C wireless controller series products are correct? (Multiple choice)

Question32: In the wireless controller and thin AP network configuration, what command can be used to view the detailed information of the client connected to the specified AP?

Question33: What are the correct statements about the medical software architecture in the medical industry? (Multiple choice)

Question34: When the H3C outdoor AP is installed in an outdoor environment and travels through the Ethernet line, the network port lightning protection device is required for the lightning protection of the near-end switch. The following is the port diagram of the POE-MH network port lightning protection device. Judging by the picture, which port is used to connect to the near-end switch?

Question35: Regarding the data forwarding between the FP IT AP and the controller, which of the following statements are correct? (Multiple choice)

Question36: C H3C wireless controllers using e License mechanism managed the number of P AP, wherein 3 WX6103 wireless is on MPU, can manage default ___ APs, License step size is ___, can manage up to ____ APs.

Question37: 802.11g/n supports 1-14 channels. The channels supported by each country are different. Which channel is used in China?

Question38: When the wireless client cannot detect the signal, what are the possible reasons? (Multiple choice)

Question39: In the survey of outdoor bridging, the main consideration is the issue of wireless line of sight. You should be able to see the opposite antenna on the site, and there should be no obstacles in the middle. In general, the following methods can be used to solve the sight distance problem and the Fresnel interval problem. Which is the simplest and most effective method?

Question40: For outdoor antenna installation, the wind resistance of the antenna can be ignored.

Question41: The 802.11 protocol stipulates that a radio chip (radio) can define at most how many groups of WEP keys at the same time. At the same time, the length of the static Key in the WEP key is how many bits, and the length of the IV vector is how many bits.

Question42: In the long-distance transmission of wireless signals, the Fresnel Zone is an important concept. Which of the following statement about the Fresnel zone is correct? (Multiple choice)

Question43: P FITAP network, what are the deployment modes of radio controller and P AP? (Multiple choice)

Question44: What wireless technologies mainly used in the industry include? (Multiple choice)

Question45: What are the correct statements about the wireless architecture of rail transit? (Multiple choice)

Question46: Which of the following equipment that generates 2.4GHz electromagnetic waves? (Multiple choice)

Question47: According to the propagation characteristics of electromagnetic waves, under other conditions, the relationship between the frequency of electromagnetic waves and its coverage, which is correct?

Question48: H3C's outdoor wireless AP products include ___. (Multiple choice)

Question49: In the next few years, a new WLAN 802.11 standard will be released, and its rate will exceed 1000M+, when WLAN will enter the era of gigabit access, and its name is?

Question50: In the 802.11i standard, which protocol that needs to be encrypted by hardware? so the hardware support of the network card is required.

Question51: WLAN "Theoretical Maximum Transmission Rate" usually refers to the transmission rate of large-byte (0 1500 bytes) packets, but in most networks, there are more small-byte (below 250 bytes) packets. Will seriously affect the actual application performance of WLAN, making it far below the theoretical maximum rate.

Question52: Which of the following statements about AP equipment grounding specifications is correct? (Multiple choice)

Question53: Which of the following are the optimization technology innovations of CH3C based on WLAN business applications? (Multiple choice)

Question54: Mount the antenna on a high place and maintain a certain downward inclination to cover the outdoor space, suitable for outdoor WLAN coverage in open/semi-open areas.

Question55: In point-to-multipoint (PtMP) wireless transmission, the more suitable antenna type is?

Question56: Which of the following device's power consumption is greater than 12.95w, traditional 802.11af devices cannot pass PoE and need to be powered by 802.3at or a local power supply?

Question57: Which of the wireless protocol mainly used for wireless bridging is?

Question58: What does H3Care WLAN network optimization service include? (Multiple choice)

Question59: As a qualified surveyor, before conducting a wireless network survey, which of the following hardware needs to be prepared? (Multiple choice)

Question60: 802.11a/g uses different modulation techniques, for example, when QPSK is used, each sub-channel encodes 250Kbit/s of data, and the channel number rate can reach how many Mbit/s?

Question61: AP supporting 802.11n use z 20MHz channel bandwidth and n 802.11n wireless network card can negotiate the highest rate is?

Question62: Generally, there is a strong attenuation effect on wireless signals. Obstacles that need special attention in site surveys are? (Multiple choice)

Question63: The transmission technology used to solve the hidden node problem in the 8021.11 network is?

Question64: In the wireless networking that uses the controller WX5002 and AP WA2110, if you need to perform 802.1X authentication for wireless users, which of the following command needs to be configured first?

Question65: When F FP IT AP cannot be registered online, what are the possible reasons? (Multiple choice)

Question66: Thicker cables generally cost more, but they introduce less loss, a small bending radius, and convenient construction.

Question67: Which of the following description of the 4 WX5004) wireless controller is correct? (Multiple choice)

Question68: Whether the wireless terminal roams or not depends on the client-driven ruling mechanism. For the Inter wireless network card, when the "roaming initiative" is set to _____, the wireless client will not switch sensitively, and only switch when the link quality drops To another access point.

Question69: In the wireless controller, the following configuration makes the client unable to search for the wireless signal, what is the possible reason? (Multiple choice)
wlan service-template 2 crypto ssid h3c-wlan authentication-method open-system
cipher-suite wep40 wep default-key 1 wep40 pass-phrase 12345

Question70: In H3C's Intelligent Management Center (IMC), which is the composition used to realize wireless service management?

Question71: About wireless clients in multiple H3C between roaming wireless controller, which of the following statement is correct? (Multiple choice)

Question72: In H3C AP device implicit mode, through the command "display ar5drv [1|2] statistics, you can check whether the AP sends Beacon frames. If you continue to check through this command and find that the value of ______ has increased, it means that the AP device is sending normally Beacon frame.

Question73: In the process of wireless network survey, which of the following statements is correct? (Multiple choice)

Question74: H HC 3C wireless controller can view the detailed information of P AP registration through the command "display wlan ap all verbose". The following output is the detailed information of an AP viewed through this command.
Based on the above information, you can know _________. (Multiple choice)

Question75: How many APs can be managed by WX3010 at most?

Question76: If you use the "display wlan ap all" command on the AC to see that the AP repeatedly enters the image download state, what are the possible reasons? (Multiple choice)

Question77: What are the design methods of wlan combination system? (Multiple choice)

Question78: Which of the following wireless protocols that can work in the 2.4GHz frequency band? (Multiple choice)

Question79: When the AP's diversity antenna interface is not used, or when doing a distributed system, the power splitter port is not used. In this case, you need to screw it to the interface with _______ to prevent radio frequency interference from affecting the system.

Question80: The name of the 802.11 security mechanism standard is?

Question81: The Wi-Fi Alliance is a non-profit international association established in 1999. It aims to certify the interoperability of wireless LAN products based on the IEEE802.11 specification and promote the formulation of new wireless standards. Wi-Fi certified products indicate It has basic interoperability (such as wireless connection, encryption, roaming, etc.). (Multiple choice)
Which of the following are the protocol standards proposed by the Wi-Fi Alliance?

Question82: The wireless network authentication method for user authority authentication through linkage with the s radius server is? (Multiple choice)

Question83: The best way to determine the signal transmission distance between wireless devices is _______.

Question84: When increasing the gain of an omnidirectional antenna, which of the following descriptions are correct regarding the coverage of the antenna? (Multiple choice)

Question85: P FAT/FIT AP work mode smooth switching mainly comes from? (Multiple choice)

Question86: Among the following H3C series AP devices, which one can support 500mw of maximum radio frequency transmit power? (Multiple choice)

Question87: The occupied bandwidth of each channel in 802.11g in ISM is?

Question88: The "WPA-Personal" or "WPA2-Personal" network authentication method uses _ to prevent unauthorized network access. Generally, you need to enter a text phrase with 8 to 63 characters.

Question89: What is the shape feature of H3C indoor AP RF connector?