EMT Practice Test

1. Question Content...

---

Question1: The following description of the service VLAN is correct (Select 3 Answers).

Question2: The following command can be used to configure the port of the Huawei switch to be in hybrid mode.

Question3: The following service models can provide end-to-end QoS services, but the scalability is not good.

Question4: When only one interface of the AC is connected to the aggregation layer switch, the user traffic is directly transmitted through the aggregation switch to the public network.

Question5: The following is not the AP binding template .

Question6: Regarding the networking method, the following description is correct.

Question7: Regarding the working principle of 5G priority, the following statement is correct.

Question8: The algorithm used for CCMP encryption is .

Question9: What is the command to check online users on the AC?

Question10: What is the function of the AC in the wireless network (Select 3 Answers)?

Question11: What are the options that can be configured under sevice-set (Select 3 Answers)?

Question12: Among the following options, it is not the main purpose of roaming.

Question13: What is the AP connected to the AC through the wired network in the WDS network?

Question14: What is the US non-overlapping channel in the 2.4 GHz band?

Question15: Radio frequency mainly uses spread spectrum technology.
Which of the following technologies belong to Spread 2 Answers?

Question16: Which technology is below the wireless metropolitan area network?

Question17: To configure a WLAN service, you need to add an AC to the U2000.

Question18: When the two-channel center frequency distance is less than or equal to 25 MHz, there is an overlapping area between the channels, and there may be some interference. Therefore, in order to avoid adjacent channel interference in adjacent area channel planning, the same channel is not allowed.

Question19: The cable used in the project cannot theoretically exceed the meter.

Question20: In the process of discovering the AC by the thin AP, the first step is to check whether there is a list of pre-configured static AC IP addresses.

Question21: Capacity planning mainly estimates the number of APs needed to meet the traffic volume in terms of device performance, number of users, bandwidth requirements, and wireless environment.

Question22: If the terminal supports both 5 GHz and 2.4 GHz functions, the AP can be configured to control such terminals to preferentially access 5 GHz.

Question23: What are the mandatory standards for wireless LAN security in China?

Question24: For better coverage, try to make the AP signal pass through the wall.

Question25: The following options are prerequisites for starting the Huawei load balancing function.

Question26: The maximum number of layers supported by the location topology in Huawei eSight is layer.

Question27: MIMO (Multiple input and multiple output), that is, multiple input and multiple output, wireless access points and clients using 802.11n technology can simultaneously transmit data using up to three spatial streams, and the theoretical rate can reach 600 Mbps.

Question28: Which of the following standards organizations is proposed by the CAPWAP protocol?

Question29: After passing, after not following the following two-link backup networking, the description is incorrect.

Question30: There are many video conferences in large companies, and QoS generally adopts the service model.

Question31: What are the reasons why APs cannot go online (Select 3 Answers)?

Question32: The following is true for WLAN networking configuration (Select 3 Answers).

Question33: The CAPWAP protocol is a WLAN standard proposed by the IEEE standards organization in April 2009 for communication between AC and thin APs.

Question34: 20dBm is equivalent to mW.

Question35: The roaming of the terminal in different VLANs belongs to.

Question36: Which of the following devices are Huawei Wireless Dual Access AP (Access Point) (Select 2 Answers)?

Question37: For indoor distributed APs, the following description is correct (B).

Question38: The AP and the antenna can be connected.

Question39: Which configuration methods does the wireless controller support (Select 3 Answers)?

Question40: For the polarization of electromagnetic waves, the following description is correct (Select 3 Answers).

Question41: What are the QoS service models (Select 3 Answers).

Question42: The common reason why an AP cannot obtain an IP address is (ABC) (Select 3 Answers).

Question43: What is correct in the following options (Select 3 Answers)?

Question44: If the AP wants to obtain the IP address of the AC through the DNS server, first obtain the IP address of its own IP address, DHCP server, and DNS.

Question45: In the direct connection network, the AP and the AC establish a CAPWAP tunnel. The management flow must be encapsulated in the CAPWAP tunnel. The data service flow can be encapsulated in the CAPWAP tunnel.

Question46: Authentication is not related to the authentication encryption used by the WLAN itself when it is used by the WLAN.

Question47: Which of the following features (BCD) (Select 3 Answers) is available for the Huawei WLAN Planning Tool.

Question48: The equipment manufacturer can usually be judged according to the following.

Question49: How many channels can the 2.4 GHz band be divided into?

Question50: Which modulation method does the following picture belong to?

Question51: When WLAN planning is performed in a single area, the factors affecting the number of APs deployed are (Select 3 Answers).

Question52: What is the area covered by a single AP?

Question53: Among the following encryption methods, the best security is.

Question54: In Huawei eSight, the method of adding WLAN devices includes (Select 3 Answers).

Question55: Among the following options, is the reason for using 5G priority access.

Question56: The MEth0/0/1 interface on the AC6605 is used for inband network management. The default address is 192.168.1.1/24 and cannot be modified.

Question57: 802.11b is a protocol based on Orthogonal Frequency Division Multiplexing (OFDM) technology.

Question58: Unlike the 802.11a/b/g standard, the 802.11n protocol is a dual-band mode of operation (supporting two operating bands of 2.4 GHz and 5 GHz).

Question59: The 802.11n standard uses dual-band (2.4 GHz and 5 GHz), the theoretical transmission rate can reach up to 300 Mbps, and the actual test rate can reach more than 100 Mbps.

Question60: What are the upgrade modes of Huawei Wireless AP (Select 2 Answers)?

Question61: The following statement is correct (Select 2 Answers)?

Question62: The following description of the splitter and coupler is correct .

Question63: The antenna obtains the gain by means of .

Question64: If not configured, what is the default authentication method supported by the AP?

Question65: Which of the following AP modes does not belong to the WDS network?

Question66: What is the command for the Huawei AC6605 to switch between the wired side and the wireless side?

Question67: In the 802.11 frame, what type of frame does the STA's association request and authentication request belong to?

Question68: When deploying APs on multiple floors of a building, the factor to be aware of is (Select 3 Answers).

Question69: Various pipes, metal keels and aluminum alloy gussets in the ceiling will have a greater impact on the actual signal coverage.

Question70: Which of the following Huawei APs supports SFP fiber interfaces?

Question71: In a large-scale wireless network deployment scenario, when the AC is configured as "Layer 3 Networking + Side-by-Side Mode + Direct Forwarding", where should the wireless user's gateway be located?

Question72: In the 802.11 frame, when the network uses the WDS model for signal transmission, what are the values of To DS and From DS, respectively?

Question73: What is the maximum number of APs that can be managed by the ACU board of the Huawei plug-in controller?

Question74: The conditions for switching triggers are generally set (Select 2 Answers).

Question75: To upgrade an AP through FTP, you need to ensure that the AP and the FTP server can communicate with each other and put the AP upgrade file in the FTP root directory.

Question76: WDS technology increases the flexibility and convenience of the entire network structure, but only supports peer-to-peer mode of operation.

Question77: What is the operating frequency set by China in the 2.4 GHz band?

Question78: Huawei Plug-in Controllers Which series of switches (Select 3 Answers) are available for Huawei ACU boards?

Question79: Metal objects have a greater attenuation of the wireless signal, and the AP or antenna should be placed behind a metal ceiling or the like.

Question80: In the TKIP encryption mode, the length of the IV vector is bit.

Question81: What is the bandwidth of each channel in the 802.11g band?

Question82: The correct statement about WDS is (Select 2 Answers)?

Question83: The port number of the control packet of the CAPWAP tunneling protocol is

Question84: What are the WLAN operating bands (Select 2 Answers)?

Question85: The gain of antenna A is 11dBi, and the gain of antenna B is 8dBi. It can be said that antenna A has a larger gain than antenna B.

Question86: What is the wireless client's active scanning to get the surrounding wireless network information by sending frames?

Question87: Among the following options, the common source of WLAN interference is (Select 3 Answers).

Question88: The power of the indoor AP is generally mW.

Question89: A company wants to deploy WLAN. The company has purchased a number of wireless APs that support 802.11n. When the WLAN is deployed, only 802.11n wireless clients can connect to the company's WLAN.

Question90: Which of the following protocols is defined in the Mesh networking?

Question91: The description of the following WLAN networking diagram is wrong.

Question92: Which of the following protocols are IEEE 802.11 standards Select 3 Answers)?

Question93: Which of the following WLAN signals pass through (Select 2 Answers).

Question94: In a dual-link backup network, what do the APs use to distinguish between the primary AC and the standby AC (Select 3 Answers)?

Question95: The three APs deployed on the first floor have channels from left to right, 1, 6, and 11, respectively. The channels of the three APs deployed on the second floor should be divided into.

Question96: In the thin AP networking, which of the following authentication methods does not require AC participation during the authentication process.

Question97: Huawei AC controller AC6605 supports user access security management through security templates and supports WEP, WPA/WPA2, and WAPI security policies.

Question98: Which of the following protocols can support both the 2.4 GHz band and the 5 GHz band?

Question99: The networking mode can be divided into a Layer 2 networking mode and a Layer 3 networking mode based on the network architecture between the AP and the AC.

Question100: Regarding the two major standards of PoE, the following statement is incorrect (Select 2 Answers). The

Question101: Which of the following two are PoE's power supply standards (Select 2 Answers)?

Question102: For the AC6605, the following commands can be used to check whether the AP is online.

Question103: How many management nodes (B) does the eSight Standard Edition support?

Question104: An infrastructure-mode network consisting of multiple APs and distributed systems that connect them, also known as what?

Question105: In the 802.11 frame, what is the correct correspondence between the Type and the frame format in the Frame Control bit?