This page was exported from IT Certification Exam Braindumps [ http://blog.braindumpsit.com ] Export date:Sat Apr 12 21:04:22 2025 / +0000 GMT ___________________________________________________ Title: Updated Nov-2022 H12-311_V3.0 Free Exam Files Downloaded Instantly [Q127-Q149] --------------------------------------------------- Updated Nov-2022 H12-311_V3.0 Free Exam Files Downloaded Instantly Practice Exams and Training Solutions for Certifications QUESTION 127exist WDS In the networking, it is connected to AC connected AP What is usually called ()?  Leaf AP  Middle AP  Master AP  Root AP QUESTION 128After one data frame is sent and confirmed, what is the time interval to wait before sending the next data frame ()?  SIFS  IFS  DIFS  PIFS QUESTION 129Defined WLAN Medium service quality 802.11 The agreement is ().  802.11f  802.11i  802.11e  802.11n QUESTION 130According to the following output, the following statement is correct ().<Quidway> display deviceAC6605-26-PWR’s Device status:Slot Sub Type Online Power Register Status Role———————————–0-AC6605-26 Present PowerOn Registered Normal MasterPOWER Present PowerOn Registered Normal NA(Select 2 Answers)  The user is currently operating on the wired side of the AC  The user is currently operating on the wireless side of the AC  According to the output, it can be concluded that the AC6605 uses a POE power supply module  To implement the related configuration of WLAN, the user must first switch to the wireless side by CTRL+Ypass QUESTION 131Same user VLAN And the same SSID All wireless users can access the Internet, but they can’t access each other. What may be the cause of this phenomenon ()?  Configured on the user’s gateway device ACL , Which prevents mutual access between users  AC Configured on ACL , Which prevents mutual access between users  Access AP Port isolation configured on the switch prevents mutual access between users  wireless service-set User isolation is configured on the computer to prevent mutual access between users QUESTION 132Terminal is different VLAN The roaming within belongs to ().  Seamless AP roaming  Two-tier roaming  Three-tier roaming  Four-tier roaming QUESTION 133WLAN AP It can be powered by ().(Select 3 Answers)  POE switch  POE switcher  Independent power adapter  RF cable QUESTION 134For the polarization of electromagnetic waves, which of the following descriptions is correct is (). (Select 3 Answers)  The antenna radiates electromagnetic waves to the surrounding space  The polarization of the antenna refers to the direction of the magnetic field strength formed when the antenna radiates, The direction of the electric field changes according to a certain rule  If the electric field direction of the electric wave is perpendicular to the ground, we call it a vertically polarized wave  If the transmitting antenna is circularly polarized, the receiving antenna must also be circularly polarized, and the polarization direction of the two must be the same. QUESTION 135WLAN The commonly used radio frequency cables in the system are (). (Select 3 Answers)  RG-8 Jumper  1/2 “(Inch) Super flexible feeder  1/2 “(Inch) feeder  13/8 “(Inch) feeder QUESTION 136AAA It is a management framework, which is commonly used to implement () protocol.  RADIUS  CAPWAP  802.11a/b/g/n  802.1X QUESTION 137Among the following options, () is a prerequisite for enabling Huawei’s load balancing function.  AP Belong to the same type  AP In the same AC Under management, and AP Signal overlap  STA Can scan to each other for load balancing AP  AP The output power settings are the same QUESTION 138To obtain better coverage, try to use AP Signal can ( ) Through the wall.  vertical  parallel  45°  60° QUESTION 139802.11a What kind of technology is used to implement the agreement?  FHSS  DSSS  OFDM  MIMO QUESTION 140In the following options, () is not the main purpose of roaming.  Avoid long authentication time during roaming, resulting in packet loss or even business interruption  Ensure that the user authorization information remains unchanged  Guarantee users IP The address remains unchanged  Ensure that the user’s network rate remains unchanged QUESTION 141exist 1 Floor deployment 3 Piece AP, The channels from left to right are 1,6,11, At this time 2 Floor deployment 3 Piece AP Channel should be be divided into( ).  1 ,6,11  2 ,7,12  6 ,11,1  11 ,6,1 QUESTION 142Which of the following wireless frames are control frames ()? (Select 3 Answers)  Beacon  RTS  CTS  PS-Poll QUESTION 143802.11n Standard uses dual band (2.4GHz and 5GHz ), the theoretical transmission rate can reach up to 300Mbps, The actual test rate can reach arrive 100Mbps above.  True  False QUESTION 144Wireless network engineer WLAN When planning the network, use RF The purpose of simul-ation is (). (Select 3 Answers)  Analog signal coverage effect, find blind spots  Obtain the field strength distribution of different locations  Get the current signal-to-noise ratio of different locations  Get available bandwidth in different locations QUESTION 145For shared key authentication, the error described below is ().  After adopting shared key authentication, you must use WEP Encryption  The shared secret requires users and AP Use the same shared secret  For skinny AP, The shared key is preset in AC middle  The disadvantages of shared keys are poor scalability and not very secure QUESTION 1462.4 GHz What is the distance between the center frequencies of the channels in the frequency band ()?  20 MHz  22 MHz  5 MHz  10 MHz QUESTION 147The following statement is correct ().(Select 3 Answers)  WPA2 PSK authentication requires the user to enter a user name and password to connect  When the user performs web authentication, it is triggered by the user’s http message after successfully obtaining the IP address; at this time, it is forcibly redirected to the portal server, Go through the certification process  WPA2 uses 802.1X authentication  WAPI is China’s national standard system for wireless LAN QUESTION 148WDS Technology improves the flexibility and convenience of the entire network structure, but it can only support point-to-point working mode.  True  False QUESTION 149If the wireless client wants to pass AP Connected to WLAN , Then what is it through to connect to the wireless network ()?  SSID  IBSS  BSID  BSA  Loading … Q&As with Explanations Verified & Correct Answers: https://www.braindumpsit.com/H12-311_V3.0_real-exam.html --------------------------------------------------- Images: https://blog.braindumpsit.com/wp-content/plugins/watu/loading.gif https://blog.braindumpsit.com/wp-content/plugins/watu/loading.gif --------------------------------------------------- --------------------------------------------------- Post date: 2022-11-22 14:49:30 Post date GMT: 2022-11-22 14:49:30 Post modified date: 2022-11-22 14:49:30 Post modified date GMT: 2022-11-22 14:49:30