Latest [Apr 18, 2024] Huawei H12-351_V1.0 Exam Practice Test To Gain Brilliante Result
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Huawei H12-351_V1.0 certification exam is divided into three parts: theoretical knowledge, case studies, and network design. The theoretical knowledge section covers topics such as WLAN standards, WLAN security, WLAN protocols, and WLAN planning. The case studies section tests the candidate's ability to analyze and troubleshoot WLAN issues. The network design section evaluates the candidate's ability to design WLAN networks that meet specific requirements.
NEW QUESTION # 28
Drag the short-range wireless IoT technologies on the left to their corresponding descriptions on the right.
Answer:
Explanation:
Explanation
According to the Huawei documents and resources, the definitions of the short-range wireless IoT technologies are as follows:
ZigBee: IEEE 802.15.4-based wireless communication technology is a short-range, and low-power wireless communication technology that supports star, mesh, and hybrid networking.
Bluetooth: With the emergence of IoT industries such as smart wearables, smart home, and Internet of Vehicles, short-range communication technologies are attracting more and more developers.
REID: Its basic principle is to automatically identify objects based on the transmission characteristics of radio signals and space coupling (inductance or electromagnetic coupling) or radar reflection.
Wi-Fi: Wireless networking technology based on IEEE 802.11 is the most popular WLAN technology.
Therefore, ZigBee - 1, Bluetooth - 3, REID - 2, Wi-Fi - 4 is the correct answer. References: :
https://support.huawei.com/enterprise/en/doc/EDOC1100158948/9a0d5c37/zigbee :
https://support.huawei.com/enterprise/en/doc/EDOC1100158948/9a0d5c37/bluetooth :
https://support.huawei.com/enterprise/en/doc/EDOC1100158948/9a0d5c37/rfid :
https://support.huawei.com/enterprise/en/doc/EDOC1100158948/9a0d5c37/wi-fi
NEW QUESTION # 29
When calculating the number of APs, you can divide the total required bandwidth by the maximum bandwidth of a single AP.
- A. False
- B. True
Answer: A
Explanation:
Explanation
When calculating the number of APs, you cannot simply divide the total required bandwidth by the maximum bandwidth of a single AP. You also need to consider other factors such as signal coverage area, user density, interference level, and application type.
References:
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/calculation-of-the-number-of-aps
NEW QUESTION # 30
Which of the following are typical 802. IX authentication modes? (Select All that apply)
- A. EAP-MD5
- B. EAP termination
- C. EAP-TLS
- D. EAP relay
Answer: B,D
Explanation:
Explanation
According to the Huawei documents and resources, EAP termination and EAP relay are typical 802.1X authentication modes between the access device and authentication server. In EAP termination mode, the access device terminates EAP packets and encapsulates them into RADIUS packets. In EAP relay mode, the access device directly encapsulates the received EAP packets into RADIUS using EAP over RADIUS (EAPoR) packets2. Therefore, A and B are the correct answers. References:
https://support.huawei.com/enterprise/en/doc/EDOC1100086527
NEW QUESTION # 31
Which of the following configurations may cause ST As to experience a slow Internet connection? (Select All that Apply)
- A. QoS CAR is configured in the traffic profile.
- B. Rate limiting is configured in the SSID profile.
- C. Radio 1 of APs is disabled.
- D. TKIP encryption is configured, causing a low link setup rate.
Answer: A,B,D
Explanation:
Explanation
B is false because disabling radio 1 of APs does not affect the Internet connection speed of STAs that use radio 2.
References:
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/troubleshooting-slow-internet-connec
NEW QUESTION # 32
Assume that a large enterprise needs to deploy a WLAN to provide wireless access for both employees and guests. However, guest data may pose security threats on the network. Which of the following networking modes is applicable to this scenario?
- A. Fat AP networking
- B. Navi WAC Networking
- C. Mesh networking
- D. Leader AP networking
Answer: B
Explanation:
Explanation
Navi WAC networking is a networking mode that uses a WLAN Access Controller (WAC) to manage and control APs. It can provide different authentication and security policies for different user groups, such as employees and guests. Guest data is isolated from the internal network to prevent security threats.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100064352/9aadccc0/navi-wac-networking
NEW QUESTION # 33
Drag the Huawei's wireless positioning solutions on the left to their corresponding features and application scenarios on the right.
Answer:
Explanation:
Explanation
According to the Huawei documents and resources, the features and application scenarios of the wireless positioning solutions are as follows:
Wi-Fi terminal positioning: Performs network-side positioning generally based on the RSSI, but provides low positioning accuracy. This method applies to scenarios such as precision marketing and customer flow analysis in shopping malls.
Bluetooth tag positioning: Runs based on the built-in Bluetooth module of an AP. The AP reports data to a positioning engine for location resolution. This positioning technology provides low positioning accuracy and applies to asset positioning and personnel positioning scenarios.
UWB positioning: Provides high positioning accuracy, and is applicable to scenarios that require high accuracy, such as intelligent manufacturing, warehousing logistics, and mechanical manufacturing.
Bluetooth terminal positioning: Runs based on the built-in Bluetooth module of an AP, which can be implemented on either the network side or terminal side.
Therefore, Wi-Fi terminal positioning - 3, Bluetooth tag positioning - 4, UWB positioning - 2, Bluetooth terminal positioning - 1 is the correct answer. References: :
https://support.huawei.com/enterprise/en/doc/EDOC1100158948/9a0d5c37/wi-fi-terminal-positioning :
https://support.huawei.com/enterprise/en/doc/EDOC1100158948/9a0d5c37/bluetooth-tag-positioning :
https://support.huawei.com/enterprise/en/doc/EDOC1100158948/9a0d5c37/uwb-positioning :
https://support.huawei.com/enterprise/en/doc/EDOC1100158948/9a0d5c37/bluetooth-terminal-positioning
NEW QUESTION # 34
Which of the following statements about attack defense is true?
- A. Attack defense can defend against spoofing packet attacks, malformed packet attacks, fragmentation attacks, and flood attacks.
- B. Defense against flood attacks can be used to defend against Ping of Death attacks.
- C. Fragmentation attack defense enables a device to detect packet fragments in real time and discard or rate-limit them to protect the device.
- D. Attack defense allows APs to analyze the contents and behaviors of incoming packets on ports to determine whether packets have attack characteristics. The APs then take defense measures on the packets that have attack characteristics.
Answer: D
Explanation:
Explanation
Attack defense is a feature that allows APs to analyze the contents and behaviors of incoming packets on ports to determine whether packets have attack characteristics. The APs then take defense measures on the packets that have attack characteristics, such as discarding them or limiting their rate. Attack defense can defend against spoofing packet attacks, malformed packet attacks, fragmentation attacks, and flood attacks.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/attack-defense
NEW QUESTION # 35
Which of the following advantages does BSS coloring provide in Wi-Fi 6? (Select All that Apply)
- A. More efficient channel use
- B. Higher concurrency in high-density scenarios
- C. Enhanced encryption on the air interface
- D. Higher packet rate on the air interface
Answer: A,B,D
Explanation:
Explanation
BSS coloring is a feature introduced in Wi-Fi 6 that assigns different colors to different BSSs to reduce co-channel interference. BSS coloring provides the following advantages:
Higher packet rate on the air interface: BSS coloring reduces collisions between packets from different BSSs on the same channel, improving packet transmission efficiency.
More efficient channel use: BSS coloring allows spatial reuse of channels by different BSSs, increasing channel utilization.
Higher concurrency in high-density scenarios: BSS coloring reduces interference among neighboring APs and improves network performance in high-density scenarios.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/bss-coloring
NEW QUESTION # 36
In a VRRP HSB scenario, if the VRRP preemption delay is set to a small value, which of the following problems may occur after a master/backup switchover? (Select All that apply)
- A. The batch backup process cannot be started.
- B. Backup information is incomplete.
- C. Service data on the master and backup WACs is lost.
- D. A master/backup switchback is triggered too quickly.
Answer: B,D
Explanation:
Explanation
According to the Huawei documents and resources, the VRRP preemption delay is the time that an AC waits before preempting another AC with a lower priority. If the VRRP preemption delay is set to a small value, the following problems may occur after a master/backup switchover:
B: A master/backup switchback is triggered too quickly. If the master AC recovers soon after a switchover, it may preempt the backup AC again and become the master AC. This may cause frequent switchovers and affect network stability C: Backup information is incomplete. If the backup AC takes over services from the master AC too quickly, it may not have received all the data synchronized from the master AC through HSB. This may cause service interruption or data loss Therefore, B and C are the correct answers. References:
https://support.huawei.com/enterprise/en/doc/EDOC1100064368/80fc2ebd/example-for-configuring-vrrp-hsb
2: https://support.huawei.com/enterprise/en/doc/EDOC1100096325/1a753937/vrrp-hsb-configuration
NEW QUESTION # 37
To which of the following scenarios is radio calibration applicable?
- A. WDS or mesh backhaul scenario
- B. Rail transportation scenario
- C. High-density scenario
- D. Enterprise office scenario
Answer: C
Explanation:
Explanation
Radio calibration is applicable to high-density scenarios where a large number of users access the network simultaneously and require high bandwidth, such as stadiums, exhibition halls, and conference centers. Radio calibration can improve user experience by increasing the frequency bandwidth for high-load APs.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/radio-calibration
NEW QUESTION # 38
iMaster NCE-Campuslnsight provides Intelligent radio calibration for high-load APs to increase the frequency bandwidth. This function applies to both 5 GHz and 2.4 GHz frequency bands.
- A. False
- B. True
Answer: A
Explanation:
Explanation
iMaster NCE-CampusInsight provides intelligent radio calibration for high-load APs to increase the frequency bandwidth. However, this function applies only to the 5 GHz frequency band, not to the 2.4 GHz frequency band.
References:
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/intelligent-radio-calibration
NEW QUESTION # 39
The display sync-configuration compare command is executed on the backup WAC in HSB to check wireless configuration synchronization. Based on the command output, which of the following statements are true?
(Select All that apply)
- A. This command is used to check whether the public configurations on two WACs are consistent after wireless configuration synchronization.
- B. The configuration of vap-profile name 3 exists on the master WAC but not on the backup WAC.
- C. The configuration of ssid-profile 2 exists on both the master and backup WACs.
- D. The configuration of vap-profile name 2 exists on the backup WAC but not on the master WAC.
Answer: A,B
Explanation:
Explanation
The display sync-configuration compare command is used to check whether the public configurations on two WACs are consistent after wireless configuration synchronization. The command output shows the differences between the configurations on the master and backup WACs. In this case, the configuration of vap-profile name 3 exists on the master WAC but not on the backup WAC.
References:
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/display-sync-configuration-compare
NEW QUESTION # 40
Which of the following parameters can be allocated to clients In DHCPv6 stateful autoconflguratlon? (Select All that Apply)
- A. PD prefix
- B. SNTP server address
- C. DNS server address
- D. IPv6 address
Answer: A,C,D
Explanation:
Explanation
In DHCPv6 stateful autoconfiguration, a client obtains an IPv6 address, a PD prefix (if required), and other configuration parameters (such as DNS server address) from a DHCPv6 server.
References:
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/dhcpv6-stateful-autoconfiguration
NEW QUESTION # 41
After the HTTP domain name is entered in a browser, the user Is not redirected to the Portal URL. Which of the followings is the possible cause for this failure? (Select All that Apply)
- A. HTTPS redirection is disabled.
- B. The URL template is incorrectly configured.
- C. The DNS server IP address is not added to the authentication-free rule.
- D. The web server is incorrectly configured.
Answer: B,C,D
Explanation:
Explanation
C is false because HTTPS redirection is not required for Portal authentication to work properly.
References:
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/troubleshooting-portal-authentication
NEW QUESTION # 42
In a dual-link HSB scenario, after an AP sets up CAPWAP links with the active and standby WACs, which of the following types of packets does the AP periodically send to the WACs to detect link status?
- A. Keepalive
- B. DTLS
- C. Join
- D. Echo
Answer: D
Explanation:
Explanation
In a dual-link HSB scenario, after an AP sets up CAPWAP links with the active and standby WACs, the AP periodically sends Echo packets to the WACs to detect link status. The Echo packets are sent every 30 seconds by default.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/dual-link-hsb
NEW QUESTION # 43
To enable WPA3-incapable ST As to access a WPA3-conflgured network, the WI-FI Alliance defines the WPA3 transition mode in which WPA3 and WPA2 can coexist for a period of time in the future. This mode applies only to WPA3-Enterprise, not to WPA3-Personal.
- A. False
- B. True
Answer: A
Explanation:
Explanation
The WPA3 transition mode applies to both WPA3-Enterprise and WPA3-Personal. In this mode, WPA3 and WPA2 can coexist for a period of time in the future to enable WPA3-incapable STAs to access a WPA3-configured network.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/wpa3-transition-mode
NEW QUESTION # 44
Which of the followings is not a roaming optimization solution?
- A. Proactive roaming
- B. Smart roaming
- C. Fast roaming using PMK caching
- D. 802.11r roaming
Answer: B
Explanation:
Explanation
Smart roaming is not a roaming optimization solution, but a feature that allows an AP to automatically adjust its transmit power based on signal strength and interference level. The other options are all roaming optimization solutions that can reduce roaming latency and packet loss.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/smart-roaming
NEW QUESTION # 45
In a multicast solution, there must be reachable unlcast routes between multicast sources and receivers.
- A. False
- B. True
Answer: B
Explanation:
Explanation
In a multicast solution, there must be reachable unicast routes between multicast sources and receivers, because multicast routing protocols use unicast routing information to build multicast forwarding trees.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/multicast
NEW QUESTION # 46
Which of the following statements correctly arranges matching modes used by URL filtering in descending order of priority?
- A. Exact matching > Suffix matching > Keyword matching > Suffix matching
- B. Exact matching > Prefix matching > Suffix matching > Keyword matching
- C. Exact matching > Suffix matching > Prefix matching > Keyword matching
- D. Exact matching > Keyword matching > Suffix matching > Prefix matching
Answer: C
Explanation:
Explanation
URL filtering supports four matching modes: exact matching, suffix matching, prefix matching, and keyword matching. The priority order of these modes is as follows:
Exact matching: The highest priority. An exact match means that a URL entered by a user is exactly the same as a URL in a blacklist or whitelist.
Suffix matching: The second highest priority. A suffix match means that a URL entered by a user ends with a suffix in a blacklist or whitelist.
Prefix matching: The third highest priority. A prefix match means that a URL entered by a user starts with a prefix in a blacklist or whitelist.
Keyword matching: The lowest priority. A keyword match means that a URL entered by a user contains a keyword in a blacklist or whitelist.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/url-filtering
NEW QUESTION # 47
Which of the following methods are used in IPsec to ensure secure transmission of service data on the network through encryption and authentication?
- A. Data integrity is verified.
- B. The receiver verifies the identity of the sender.
- C. The sender verifies the identity of the receiver.
- D. The receiver rejects old or duplicate packets in order to prevent attacks initiated by malicious users who resend sniffed packets,
Answer: A,B
Explanation:
Explanation
IPsec uses authentication headers (AHs) and encapsulating security payloads (ESPs) to ensure secure transmission of service data on the network. AHs provide authentication and integrity verification for the sender and the receiver, while ESPs provide encryption and optional authentication for the data.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/ipsec
NEW QUESTION # 48
Master NCE-Campuslnsight analyzes network issues during correlation analysis of poor-QoE clients, including coverage, interference throughput, and hardware issues.
- A. False
- B. True
Answer: B
Explanation:
Explanation
iMaster NCE-CampusInsight analyzes network issues during correlation analysis of poor-QoE clients, including coverage, interference, throughput, and hardware issues. It also provides suggestions for network optimization based on the analysis results.
References:
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/correlation-analysis-of-poor-qoe-clie
NEW QUESTION # 49
802. 11r fast roaming (over-the-air) is enabled on the WLAN shown in the figure. A STA roams from AP1 to AP2. Sort the steps in chronological order during the 802.11r fast roaming process between WACs.
Answer:
Explanation:
Explanation
According to the Huawei documents and resources, the chronological order during the 802.11r fast roaming process between WACs is as follows:
2.The STA accesses the network through API. This is the initial association process before roaming.
1.The STA initiates an 802.11 FT authentication request to AP2. This is the first step of the roaming process when the STA moves to a new AP.
3.AP2 starts the reassociation timer, and sends an 802.11 FT authentication response to the STA. This is the second step of the roaming process when AP2 responds to the STA's request and sets a timer for reassociation.
4.The STA generates and installs a P TK based on the information contained in the response frame. This is the third step of the roaming process when the STA derives a new pairwise key for encryption.
5.The STA sends a reassociation request to AP2. This is the fourth step of the roaming process when the STA requests to reassociate with AP2.
6.AP2 generates and installs a PTK according to PMK-RI and information contained in the request frame. This is the fifth step of the roaming process when AP2 derives the same pairwise key as the STA.
7.After receiving the reassociation request, AP2 disables the reassociation timer, and then sends a reassociation reg onse to the STA. This is the sixth step of the roaming process when AP2 confirms the reassociation with the STA and stops the timer.
8.The STA receives the response frame of AP2. The roaming process is complete. This is the final step of the roaming process when the STA completes the handover to AP2.
Therefore, 2, 1, 3, 4, 5, 6, 7, 8 is the correct answer. References:
https://support.huawei.com/enterprise/en/doc/EDOC1100169459/8d79210e/configuring-wireless-mesh-networki
NEW QUESTION # 50
Which of the following statements about the home agent are true? (Select All that Apply)
- A. The home agent communicates with the gateway on the STAs1 home network at Layer 2.
- B. A home AP can function as a home agent of STAs.
- C. The home agent communicates with the gateway on the STAs' home network at Layer 3.
- D. A home WAC can function as a home agent of STAs.
Answer: C,D
Explanation:
Explanation
The home agent is a device that communicates with the gateway on the STAs' home network at Layer 3 and maintains the binding entries of STAs' home addresses and care-of addresses. A home WAC can function as a home agent of STAs, while a home AP cannot.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/mobile-ip
NEW QUESTION # 51
In 802. IX authentication using port-based access control, once a user is authenticated successfully on a port, subsequent users on this port can access the network without authentication. When the authenticated user goes offline, all other users are denied access to the network.
- A. False
- B. True
Answer: B
Explanation:
Explanation
According to the Huawei documents and resources, 802.1X authentication using port-based access control is a method that allows only one user to access the network through a port at a time. If a user is authenticated successfully on a port, subsequent users on this port can access the network without authentication. When the authenticated user goes offline, all other users are denied access to the network . Therefore, A is the correct answer. References: 1: https://support.huawei.com/enterprise/en/doc/EDOC1100086527
NEW QUESTION # 52
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