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Huawei H12-321 Dumps

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Total 536 questions

Huawei Certified Network Professional - Wireless Local Area Network- Constructing Enterprise WLAN Architecture Questions and Answers

Question 1

The channel switching service is not interrupted. When the AP switches channels, the terminal is notified to the terminal in advance, and the time for switching the channel is agreed. When the AP and the terminal switch channels, the service is not interrupted.

Options:

A.

Correct

B.

False

Question 2

As shown in the figure, how do you choose the route from A to D in pro-active mode?

Options:

A.

A-MPP-D

B.

A-B-D

C.

A-B-C-D

D.

A-D

Question 3

Which of the following statements are TRUE about band steering supported by Huawei devices? (Multiple Choice)

Options:

A.

Load balancing between the 2.4 GHz and 5 GHz radios is considered in band steering. An AP determines the radio with which a STA preferentially associates based on numbers of access users on the 2.4 GHz and 5 GHz radios.

B.

Check whether the number of access users on an AP exceeds the start threshold for load balancing between radios. If not, STAs can preferentially associate with the 5 GHz radio.

C.

If the number of access users on an AP exceeds the start threshold for load balancing between radios, the AP determines the frequency band to which the STA connects based on radio load difference computed according to the formula (Number of access users on the 5 GHz radio -Number of access users on the 2.4 GHz radio/Number of access users on the 5 GHz radio x 100%).

D.

After the number of users associated with an AP reaches the start threshold for load balancing between radios, if the value obtained based on the formula (Number of access users on the 5 GHz radio - Number of access users on the 2.4 GHz radio/Number of access users on the 5 GHz radio x 100%) is greater than the gap-threshold value, the AP preferentially associates with the STA on the 5 GHz radio.

Question 4

Which of the following statements about the revertive switchover function are TRUE in the N+1 backup scenario? (Multiple Choice)

Options:

A.

By default, global revertive switchover is enabled on the standby AC.

B.

By default, global revertive switchover is disabled on the standby AC.

C.

In the N+1 backup scenario, revertive switchover cannot be disabled on the standby AC.

D.

In the N+1 backup scenario, revertive switchover can be disabled on the standby AC.

Question 5

Which statements are TRUE based on the network of WLAN roaming? (Multiple Choice)

Options:

A.

For intra-AC roaming/ AC1 serves as the HAC for STAs.

B.

For intra-AC roaming, AC2 serves as the FAC for STAs.

C.

For inter-AC roaming, API serves as the HAP for STAs.

D.

For inter-AC roaming, AP3 serves as the FAP for STAs.

Question 6

What does the OU in the directory server stand for?

Options:

A.

User

B.

User group

C.

Organizational unit

D.

Domain

Question 7

There are three implementations of CAC. What is wrong about the CAC implementation based on channel utilization?

Options:

A.

When receiving a new user online request, the AP first calculates the channel utilization rate on the current radio. If the new user threshold is not reached, the new user is allowed to go online.

B.

If the channel utilization reaches the new user threshold after the new user goes online, the access request of other new users is rejected, and an alarm is sent, but the SSID cannot be hidden.

C.

For the access of the roaming user, check whether the channel utilization has reached the roaming user threshold. If it is reached, the roaming user access request is rejected and an alarm is sent.

D.

The AP periodically detects the channel utilization of the radio. Once it falls below the new user threshold, it sends a release alarm to allow new users to go online.

Question 8

What is the correct description of load balancing between dual frequencies?

Options:

A.

When the load difference between the 5G and 2.4G radios is within the equalization threshold, the AP will direct the terminal to associate with the 5G.

B.

When the load on the 5G radio exceeds 2.4G at the equalization threshold, the AP will direct the terminal to associate with 2.4G.

C.

When the load on the 5G radio exceeds 2.4G in the equalization threshold, if the terminal is associated with 5G, the AP will always reject the terminal association until the terminal associates 2.4G.

D.

If the load balancing difference threshold is set to 10, it means that if the number of terminals on the 5G radio exceeds more than 10 of the 2.4G radio, the load between the two frequencies is considered to be unbalanced.

Question 9

As shown in the figure, for the partial RF tuning configuration process, regarding the configuration process of RF tuning, what is the correct sorting?

Options:

A.

b, a, d, c

B.

b, d, a, c

C.

a, d, b, c

D.

a, b, d, c

Question 10

This figure shows the WIDS attack detection process. After the dynamic blacklist is delivered to an AP, how does the AP process different data traffic during the punish period?

Options:

A.

Forward normal data traffic and drop attack traffic

B.

Drop normal data traffic and send attack traffic to the AC

C.

Forward normal data traffic and send attack traffic to the AC

D.

Drop normal data traffic and attack traffic

Question 11

The following is a description of the Mesh route establishment in the pro-active mode?

Options:

A.

The MP periodically sends a broadcast PREQ, receives the MP/MPP response unicast PREP, and establishes a round-trip route between any two points.

B.

The MPP periodically sends the broadcast RANN, and the received MP sends a unicast PREQ to the MPP. After receiving the MPP, the MPP responds to the PREP and establishes a route between the MP and the MPP.

C.

The MPP periodically sends the broadcast RANN, and the received MP sends a unicast PREP to the MPP to establish a route between the MP and the MPP.

D.

MPP periodically sends a broadcast PREQ, and the received MP responds to the unicast PREP to establish a route between the MP and the MPP.

Question 12

The online process of an AP includes the following phases. What is the correct sequence of these phases?

1. Decide whether to upgrade the AP.

2. The AP and AC establish a CAPWAP tunnel.

3. The AP goes online, and the AC delivers services to the AP.

4. The AP obtains an IP address,

Options:

A.

2->4->l->3

B.

4->l->2->3

C.

4->2->l->3

D.

2->l->4->3

Question 13

Taking 5GHz as an example, if the transmitting and receiving antennas are separated by 5km, the radius of the Fresnel zone is roughly?

Options:

A.

3.6m

B.

5.6m

C.

8m

D.

9.7m

Question 14

Which of the following statements about how to enable an HSB group is FALSE?

Options:

A.

An HSB group can be enabled in global mode.

B.

An AP needs to be added offline to both the active and standby ACs before it can go online on the two ACs.

C.

If an online AP on the active AC is added offline to the standby AC, the AP status is displayed as fault on the standby AC.

D.

An HSB group takes effect and notifies service modules of status changes only after the HSB group is enabled.

Question 15

In smart roaming, the AC instructs the AP to kick off 802.11v-incapable STAs if they are sticky STAs, add them to the blacklist, and delivers the blacklist to the APs to which the STAs associate.

Options:

A.

TRUE

B.

FALSE

Question 16

On a layer 2 WLAN, in which modes can an AP discover the AC? (Multiple Choice)

Options:

A.

Multicast

B.

Unicast

C.

Broadcast

D.

Anycast

Question 17

Which of the following methods can implement fast roaming? (Multiple Choice)

Options:

A.

PMK caching

B.

Key negotiation between STA and AP

C.

Active STA steering

D.

Home agent deployed on the AC

Question 18

The following is the configuration of the URL template when configuring the AC6005 to connect to the Portal server. What is wrong with the following statement? Url-template name huawei url url-parameter ssid ssid

Options:

A.

Port number 8080 can be changed to 8443

B.

Portal can be changed to webauth

C.

url-parameter ssid ssid means SSID=ssid

D.

url-parameter ssid ssid means any ssid

Question 19

Which are the correct procedures for a Mesh node going online through an AC? (Multiple Choice)

Options:

A.

1. An AP connects to an online Mesh neighbor through air interfaces.

2. The AP and neighbor negotiate the key, and then set up a Mesh route.

3. The AP obtains an IP address through DHCP.

4. The AP discovers the AC and goes online.

B.

1. An AP connects to an online Mesh neighbor through air interfaces.

2. The AP and neighbor set up a Mesh route, and then negotiate the key.

3. The AP obtains an IP address through DHCP.

4. The AP discovers the AC and goes online.

C.

1. An AP connects to an online Mesh neighbor through air interfaces.

2. The AP and neighbor negotiate the key.

3. The AP obtains an IP address through DHCP.

4. The AP and neighbor set up a Mesh route.

5. The AP discovers the AC and goes online.

D.

1. Once the AP is powered on, it goes online and obtains configurations from the AC.

2. The AP performs link establishment and key negotiation according to the obtained configurations.

Question 20

An engineer wants to modify the user information on the Agile Controller, but finds that it cannot be modified. What are the possible reasons?

Options:

A.

The engineer has insufficient Agile Controller account privileges.

B.

User information is synchronized from the AD directory server

C.

Agile Controller creates the same user information

D.

The related user information in the AD directory server is deleted.

Question 21

According to the process of establishing a mesh connection, the following steps are correct?

Options:

A.

4->3->2->1

B.

4->2->3->1

C.

2->3->4->1

D.

2->4->3->1

Question 22

When a large-scale enterprise deploys a WLAN Layer 3 network, you need to configure the Option 43 field on the Windows 2003 DHCP server to notify the AP of the IP address of the AC. The IP address of the AC is 10.23.100.1. Which of the following is required in the Option 43 field on the DHCP server?

Options:

A.

030831302E32332E3130302E31

B.

040831302E32332E3130302E31

C.

030B31302E32332E3130302E31

D.

030B31302E32332E31302E3031

Question 23

A company needs to construct a large WLAN. Since the company has a large number of employees, the service traffic is large. The company may need to expand the WLAN capacity in the future. Which of the following statements are TRUE? (Multiple Choice)

Options:

A.

Deploy the ACU2 on the network.

B.

Configure the VLAN pool.

C.

Configure a security policy of high security.

D.

Deploy the AC6005 on the network.

Question 24

Which statements about roaming are TRUE? (Multiple Choice)

Options:

A.

STA roaming indicates the process in which STAs switch from one AP to another.

B.

In both Layer 2 and Layer 3 roaming, STAs' IP addresses remain unchanged.

C.

The APs used to implement WLAN roaming must be of the same model.

D.

When an AC receives an association/re-association request, it determines that the STA roams if an entry about the STA already exists.

Question 25

The following description of load balancing is correct?

Options:

A.

The same radio of an AP can only be added to a load balancing group.

B.

If it is a multi-frequency AP, the load balancing between the radios in the same frequency band on the AP is implemented.

C.

A dual-band AP can be added to two load balancing groups at the same time.

D.

Limited members in each load balancing group, supporting up to 32 members

Question 26

In the dual-link cold backup networking diagram shown in the figure, API goes online, and APs are allowed to connect to both ACs. Which AC will API connect to?

Options:

A.

AC1

B.

AC2

C.

Either of them

D.

None of them

Question 27

Which statement about STP on a Mesh network is FALSE?

Options:

A.

An AC can issue STP configurations to APs only when wired interfaces of APs are not bound to an Eth-Trunk.

B.

Mesh links only transparently transmit STP packets.

C.

An STP-enabled AP does not forward STP packets to the wireless side. STP takes effect only on the AP's wired side.

D.

STP can prevent loops for multiple rings on a Mesh network.

Question 28

Which of the following statements about the three backup modes are TRUE? (Multiple Choice)

Options:

A.

Dual-link HSB: backs up AP, STA, and CAPWAP link information.

B.

VRRP HSB: backs up AP, STA, and CAPWAP link information.

C.

No matter in hot standby or cold standby mode, a standby AC can provide backup services for only one active AC.

D.

Dual-link backup is a cold backup mode, which does not back up STA information. An AP sets up a link with both the active and standby ACs. During an active/standby switchover or a revertive switchover, STAs need to go online again and services are temporarily interrupted.

Question 29

What are the methods for breaking the multi-MPP network in Huawei?

Options:

A.

STP

B.

MSTP

C.

TTL

D.

Repeat frame number detection

Question 30

In the N+1 backup networking, the following is true about the application of option 43?

Options:

A.

After the Option 43 field is configured, the AP sends unicast Discovery Request packets only to the AC IP address passed by the Option 43.

B.

If the AC that the option 43 advertises the IP address does not respond to the AP, the AP finds that the AC fails.

C.

To configure the option 43 field, you need to advertise the IP address of the primary AC and the standby AC to which the AP belongs. You also need to advertise the IP addresses of other primary ACs.

D.

Configure the DHCP server option 43 parameter field. The command for the IP address of the primary AC and the standby AC is option 43 sub-option 2 ipaddress &

Question 31

Which statement about roaming group is FALSE?

Options:

A.

After an AC is configured as the Master Controller, it is added to the roaming group by default, and can manage other ACs.

B.

The Master Controller delivers instructions to managed ACs through the CAPWAP tunnel.

C.

Master Controller is a logical role. Any AC can be configured as the Master Controller.

D.

Each AC must have a Master Controller specified.

Question 32

If you are roaming between two APs, which of the following must be met?

Options:

A.

The same security policy

B.

Same SSID

C.

The same data forwarding mode

D.

The same service VLAN

Question 33

After setting up tunnels with the active and standby ACs, the AP sends Echo messages to monitor tunnel status. The Echo messages contain the active/standby status of the tunnels. When the AP detects that the primary tunnel fails, it sends an Echo Request message with the active flag to the standby AC. After receiving the Echo Request message, the standby AC becomes the active AC, and the AP sends STA data to this AC.

Options:

A.

TRUE

B.

FALSE

Question 34

When the dual-link hot standby switchover is performed, what is the correct behavior about the AP and the user?

Options:

A.

AP does not need to go online again

B.

AP needs to go online again

C.

Users do not need to go online again

D.

Users need to go online again

Question 35

When the air interface frame is a management frame, when the Capability Info field ESS and IBSS bits in the management frame are, can the device be determined to be a wireless bridge?

Options:

A.

00

B.

01

C.

10

D.

11

Question 36

The Agile Controller can synchronize data either manually or automatically. Which of the following statements is TRUE about the two synchronization modes?

Options:

A.

The Agile Controller can only use one synchronization mode, which prevents interference between the two modes.

B.

The first synchronization must be manual, and automatic synchronization can be used subsequently.

C.

The automatic synchronization time can be modified.

D.

Manual synchronization can be used only three times within a single day, which prevents increase of network loads.

Question 37

During dual-link hot backup, the AP establishes a CAPWAP link with both the primary AC and the backup AC.

Options:

A.

Correct

B.

False

Question 38

The following is true about the global tuning algorithm?

Options:

A.

The core of the dynamic channel adjustment algorithm is the iterative exhaustive algorithm, iterating all possible "AP-channel" combinations, and finally selecting a set of optimal combinations.

B.

The goal of the TPC algorithm is to select an appropriate transmit power to meet the coverage requirements of the AP.

C.

The minimum interference threshold means that the interference strength to the neighbor is very low, the interference is acceptable, and the two APs are not aware of each other and can simultaneously transmit messages.

D.

If the interference of the neighbor is less than the minimum interference threshold, determine whether to reduce the transmit power according to the difference between the two.

Question 39

The “5W” in “5W1H” in the Agile Controller function introduction refers to: Who is connected to the network; Where is the access from the network; When is the time access; Why is the access; What is the device access.

Options:

A.

Correct

B.

False

Question 40

Which statements about Layer 2 and Layer 3 roaming are TRUE? (Multiple Choice)

Options:

A.

After Layer 3 roaming is performed, the VLAN IDs in the service set of APs are changed.

B.

If the VLAN IDs before and after roaming are the same, the STA roams at Layer 2.

C.

Layer 2 roaming indicates that STAs roam within the same subnet.

D.

Layer 3 roaming indicates that STAs roam between different subnets.

Question 41

The following statement about the proactive detection of neighbors is wrong?

Options:

A.

The AP periodically sends a Probe Request frame with the specified multicast address on different channels. After receiving the AP, the AP detects that the AP is a neighbor AP.

B.

Active detection is mainly used to establish neighbor relationships between legal APs.

C.

Active detection is mainly used to obtain the maximum interference signal strength between legal neighbors, the most critical of which is the signal strength of neighbor APs.

D.

Active detection and passive detection are used to collect interference from illegal APs.

Question 42

Which of the following statements about the second Fresnel zone are TRUE? (Multiple Choice)

Options:

A.

The wave has a different phase from the point source.

B.

The wave has the same phase as the point source.

C.

Smaller than the first Fresnel zone

D.

Larger than the first Fresnel zone

Question 43

Which of the following statements about global calibration algorithms are TRUE? (Multiple Choice)

Options:

A.

The core of the Dynamic Channel Allocation (DCA) algorithm is the exhaustion and iteration algorithms, which list all possible AP-Channel combinations and choose the optimal combination.

B.

The Transmit Power Control (TPC) algorithm aims to choose a proper transmit power which can meet coverage requirements of an AP.

C.

Interference specified by the lower interference threshold is low, and within the allowed range. Two neighbor APs cannot detect interference from each other and can send packets simultaneously.

D.

If the interference caused by a neighbor is smaller than the lower interference threshold, the algorithm determines whether to reduce the transmit power according to the difference between the interference caused by the neighbor and the lower interference threshold.

Question 44

What is the correct statement about the Mesh RF parameters?

Options:

A.

Mesh enabled RF is best to use 2.4G frequency band

B.

The “distance” parameter configuration of adjacent Mesh nodes should be the same

C.

It is best to configure the short GI mode to improve the air interface bandwidth of the Mesh regardless of the distance.

D.

The power parameters of adjacent Mesh nodes should be configured identically to avoid bidirectional transmission bandwidth imbalance.

Question 45

Which of the following statements about the HSB solution are TRUE?

Options:

A.

Figure (a) shows the active/standby mode.

B.

Figure (b) shows the active/standby mode.

C.

Figure (a) shows the load balancing mode.

D.

Figure (b) shows the load balancing mode.

Question 46

When configuring the connection between the Agile Controller and WLAN, we need to configure a port number if we want to enable Portal, as shown in the following configuration. The default port number is 2000. What is the function of this port number? [AC] web-auth-server listening-port 2000

Options:

A.

Destination port number in the packets that the WLAN device sends to the Portal server

B.

Number of the port that WLAN device uses to process Portal protocol packets

C.

Source port number in the packets that the WLAN device sends to the Portal server

D.

Number of the port that the WLAN device uses to receive Portal protocol packets

Question 47

Which of the following illegal attack detections require dynamic blacklist support in a WLAN network?

Options:

A.

Flood attack detection

B.

Spoof attack detection

C.

Weak IV attack detection

D.

Anti-brute force cracking

Question 48

An AP detects brute force attacks by checking whether the number of key negotiation failures during the WPA/WPA2-PSK, WAPI-PSK or WEP-Share-Key authentication exceeds the configured threshold.

Options:

A.

TRUE

B.

FALSE

Question 49

Which is the correct sequence for selecting a proper AP for 802.Ilk-capable STAs in smart roaming?

1. Determine whether latency-sensitive services exist.

2. Filter out APs that do not support load balancing.

3. Filter out APs that do not meet the CAC requirement.

4. Select the AP with the strongest signal strength as the target AP.

5. Select APs meeting the difference threshold conditions.

Options:

A.

1->2->3->4->5

B.

1->3->4->5->2

C.

1->5->3->2->4

D.

1->4->5->3->2

Question 50

What are the benefits of intelligent roaming?

Options:

A.

Improve the terminal's own business experience and overall performance of the wireless channel

B.

Improve wireless channel performance

C.

Load balancing

D.

Spectrum navigation

Question 51

Which of the following statements about rogue devices are TRUE? (Multiple Choice)

Options:

A.

A rogue AP is an AP not managed by the local AC.

B.

A rogue STA is a STA that does not go online through the local AC.

C.

A rogue bridge is a WDS device not managed by the local AC.

D.

All ad-hoc devices are rogue devices.

Question 52

Which statement about smart roaming is FALSE?

Options:

A.

Smart roaming directs sticky STAs to APs with better signals, preventing STAs from sticking to the original AP.

B.

Smart roaming directs STAs to APs with better signals in a timely manner.

C.

Smart roaming can be implemented only when it is supported by STAs.

D.

Smart roaming enables the active probe function, so that APs can quickly collect neighbor information. Once a neighboring AP meets the condition, active roaming is triggered.

Question 53

Which of the following measures are beneficial to guide wireless terminals to preferentially associate 5G bands?

Options:

A.

5G radio configuration transmission power is higher than 2.4G 3-8dB

B.

For the terminal to send a probe request to probe the AP, the AP preferentially responds to the probe on the 5G, and responds to the probe on the 2.4G after responding several times on the 5G.

C.

If the terminal initiates association with the 2.4G radio, the AP refuses to associate, and the association is allowed only after the number of rejections reaches a certain threshold. For the association on the 5G radio, the AP immediately allows the association.

D.

Configure the rate of the beacon on the 5G to be higher than the 2.4G radio. The beacon period is greater than the 2.4G radio. The number of probe retransmissions is less than 2.4G.

Question 54

Which of the following factors should be considered when engineers determine the antenna installation height in the long-distance point-to-point scenario? (Multiple Choice)

Options:

A.

Signal transmission frequency

B.

Distance between the receive and transmit antennas

C.

Antenna beamwidth

D.

Earth curvature

Question 55

What information can the Agile Controller deliver to the NAS device for right control? (Multiple Choice)

Options:

A.

VLAN

B.

ACL

C.

Static ARP entry

D.

Static routes

E.

Specific RADIUS attributes

Question 56

As shown in the figure, the WIDS attack detection process, after completing the dynamic blacklist, how does the AP handle different data traffic when it is in the blacklist penalty period?

Options:

A.

Forward normal data traffic and discard attack traffic

B.

Discard normal data traffic and report attack traffic

C.

Forward normal data traffic and report attack traffic

D.

Drop normal data traffic and discard attack traffic

Question 57

As shown in the figure, four STAs (STA1 to STA4) are associated with API and STA5 is associated with AP2. The start threshold for load balancing is set to 5. API and AP2 each allow a maximum of 10 STAs and the load difference threshold is set to 10%. When STA6 sends an association request to API for the first time, which of the following statements is TRUE?

Options:

A.

API preferentially uses the load balancing algorithm for calculation and allows the association request from STA6.

B.

API preferentially uses the load difference threshold algorithm for calculation and allows the association request from STA6.

C.

API preferentially uses the load balancing algorithm for calculation and rejects the association request from STA6.

D.

API preferentially uses the load difference threshold algorithm for calculation and rejects the association request from STA6.

Question 58

Which of the following is the Mesh network role?

Options:

A.

MP

B.

MPP

C.

MAP

D.

VAP

Question 59

On a WLAN network, which of the following attacks will trigger alarms? (Multiple Choice)

Options:

A.

Flooding attack

B.

Spoofing attack

C.

Weak IV attack

D.

Brute force

Question 60

What are the advantages of a WLAN Mesh network over a traditional WLAN?

Options:

A.

The limitations of coverage are broken

B.

Reduce reliance on wired networks

C.

Wireless signal is stronger

D.

Support AP or AC function of Mesh device is more powerful

Question 61

Which is the correct procedure of Mesh link establishment?

A)

B)

C)

D)

Options:

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Question 62

There are two algorithms for assigning VLAM in VLAN Pool: sequential algorithm and hash algorithm. Which of the following are the characteristics of Hash algorithm?

Options:

A.

Users can be assigned to the same VLAN multiple times, and the IP usually does not change.

B.

The number of users in each VLAN is evenly divided.

C.

The number of users in each VLAN is unevenly divided.

D.

The user is back online, the VLAN is easy to change, and the IP will change.

Question 63

Which of the followings are implementation modes of CAC? (Multiple Choice)

Options:

A.

Based on channel usage

B.

Based on the number of users

C.

Based on the terminal SNR

D.

Based on the number of APs

Question 64

In a WLAN network environment, after a Spoof spoofing attack, the attacking terminal cannot be determined by the MAC address.

Options:

A.

Correct

B.

False

Question 65

Regarding the parameter DN in the directory server, is the following description correct?

Options:

A.

Each directory server has a DN parameter

B.

The DN parameter is only available in the LDAP server.

C.

DN is a parameter that needs to be manually configured by the directory server administrator.

D.

The DN parameter is only available in the AD server.

Question 66

In the dual-link cold networking, the following statement is correct?

Options:

A.

The AP only establishes a CAPWAP tunnel with the AC.

B.

The AP establishes a CAPWAP tunnel with both the primary and backup ACs.

The AP periodically exchanges CAPWAP packets with the active and standby ACs to detect link status.

C.

The AP periodically exchanges CAPWAP packets with the primary AC to detect link status.

Question 67

What is wrong with the following statement about power adjustment?

Options:

A.

The transmit power of the AP determines the coverage of its RF signal. The larger the AP power, the larger its coverage.

B.

The global tuning algorithm mainly includes the dynamic channel adjustment algorithm TPC and the transmission power control algorithm DCA.

C.

The traditional RF power control method only statically sets the transmit power to the maximum value, simply pursuing the signal coverage, but excessive power may cause unnecessary interference to other wireless devices.

D.

When dynamically adjusting power, it is necessary to choose an optimal power that balances coverage and signal quality.

Question 68

If time is specified as an authorization element, what is the purpose of configuring time in authentication and authorization rules?

Options:

A.

To limit the total duration for the user connection.

B.

To specify the point of time at which user access is allowed.

C.

To specify the point of time before which the user must disconnect from the network.

D.

To specify the time period in which user access is allowed.

Question 69

Rogue device prevention is a function that prevents access from rogue APs or STAs using a blacklist,

Options:

A.

TRUE

B.

FALSE

Question 70

What is the correct formula for the Fresnel radius formula and the Earth curvature formula below?

Options:

A.

a

B.

b

C.

c

D.

d

Question 71

The following is the correct command for creating a static load balancing group?

Options:

A.

[AC-wlan-view] regulatory-domain-profile name domain1

B.

[AC-wlan-view] air-scan-profile name wlan-airscan

C.

[AC-wlan-view] rrm-profile name profile-name

D.

[AC-wlan-view] sta-load-balance static-group name static-1

Question 72

In the WLAN network, the Weak IV attack detection function does not require dynamic blacklist support.

Options:

A.

Correct

B.

False

Question 73

When the air interface frame is a data frame, you need to compare the DS value. What is the ratio of To DS and From DS? Is the device type AP?

Options:

A.

0,0

B.

0,1

C.

1,0

D.

1,0

Question 74

Regarding the process of the Mesh node going online on the AC, is the following description correct?

Options:

A.

The AP establishes a Mesh air interface link with the Mesh neighbors that have been online, performs key negotiation, establishes a mesh route, obtains an IP address through the DHCP process, finds the AC, and performs subsequent online processes.

B.

The AP establishes a Mesh air interface link with the Mesh neighbors that have been online, establishes a Mesh route, performs key negotiation, obtains an IP address through the DHCP process, finds the AC, and performs subsequent online processes.

C.

The AP establishes a Mesh air interface link with the Mesh neighbors that have been online, performs key negotiation, obtains an IP address through the DHCP process, establishes a Mesh route, finds the AC, and performs subsequent online processes.

D.

Initial power-on of the AP After the AC is taken online, the AP will re-establish chain-building and key negotiation according to the new configuration.

Question 75

Which are the omnidirectional antenna patterns? (Multiple Choice)

Options:

A.

(a)

B.

(b)

C.

(c)

D.

(d)

Question 76

Which statement about the Mesh profile is FALSE?

Options:

A.

All STAs in a Mesh BSS have the same Mesh profile. If two Mesh profiles have the same parameters, the profiles are considered the same.

B.

A Mesh profile contains the following fields: Mesh ID, A path selection protocol identifier (fixed value), and A path selection metric identifier (fixed value).

C.

After a Mesh BSS is set up or an STA joins a BSS, the STA generates a Mesh profile.

D.

An STA will not modify its Mesh profile unless the profile is deleted from the BSS (the STA is a member of the BSS).

Question 77

Which of the following APs and STAs cannot communicate with each other? (Multiple Choice)

Options:

A.

API and STA1

B.

API and STA2

C.

AP2 and STA1

D.

AP2 and STA2

Question 78

Which of the following methods does RF tuning include?

Options:

A.

Global RF tuning

B.

Interface RF Tuning

C.

Local RF tuning

D.

Process RF tuning

Question 79

Which of the following servers is the directory server?

Options:

A.

RADIUS server

B.

AD server

C.

DNS server

D.

Portal server

Question 80

Which of the following processing methods are TRUE, to solve the packet congestion on the tunnel?

(Multiple Choice)

Options:

A.

The HAC at the tunnel ingress discards unknown unicast packets.

B.

The HAC discards broadcast or multicast ARP, ND, DHCP, and mDNS packets to prevent loops.

C.

After broadcast/multicast packets are transparently transmitted to the FAC, the FAC converts the packets to unicast packets and forwards the packets over a specific tunnel based on the home AP connected to it.

D.

The FAP discards unknown unicast packets and forwards other packets to roaming STAs.

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Total 536 questions