AP Failed to Connect The Internet

There is also a question discussed hotly,  AP failed to connect the internet and then make up? Everybody can show your ideas the following. The AP of the 2504WLC 1602 can be registered commonly, but when I check the diary, AP is disconnected and reconnected.
The main logs usually are as follows:

Mon Mar 25 09:28:06 2019
AP’s Interface:1(802.11a) Operation State Up: Base Radio MAC:00:6c:bc:c3:f8:80 Cause=Unknown Reset Status:NA
Mon Mar 25 09:28:06 2019
AP’s Interface:0(802.11b) Operation State Up: Base Radio MAC:00:6c:bc:c3:f8:80 Cause=Unknown Reset Status:NA
Mon Mar 25 09:28:06 2019
AP’s Interface:0(802.11b) Operation State Up: Base Radio MAC:00:6c:bc:c3:fa:70 Cause=Unknown Reset Status:NA
Mon Mar 25 09:28:05 2019
AP’s Interface:1(802.11a) Operation State Down: Base Radio MAC:00:6c:bc:c3:fa:70 Cause=Radio interface reset. Status:NA
Mon Mar 25 09:28:05 2019
AP ‘APe00e.daa6.508f’, MAC: 00:6c:bc:c3:f8:80 disassociated previously due to Link Failure. Uptime: 4 days, 22 h 36 m 31 s . Reason: Capwap WTP Event request.
Mon Mar 25 09:28:05 2019
AP ‘APe00e.daa6.50ae’, MAC: 00:6c:bc:c3:fa:70 disassociated previously due to Link Failure. Uptime: 4 days, 23 h 47 m 32 s . Reason: Capwap WTP Event request.

The grounds maybe are:
1. A problem with its hardware.
2. A problem with the wireless channel. Often the channels are not separated.
3. The influence of cellular.
4. The insufficient bandwidth is not enough.

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Which two are accurate statements? (Choose two.)
A. NBX 100 supports 48 VTLs
B. NBX V5000 supports 48 VTLs
C. NBX V3000 supports 48 VTLs
D. NBX V5000 supports 72 VTLs
70-533 exam Correct Answer: BC

Which three office-to-office and/or office-to-remote user call options are supported by the NBX systems? (Choose three.)
A. With a single NBX system at HQ, users can call to/from a remote office across the data network WAN link using Layer 3 IP communications
B. With a NBX Network Call Processor (NCP) and NBX ConneXtions Gateways at each site, users can call to/from the sites via a Virtual Tie Line (VTL)
C. With a single NBX system at HQ and pcXset on the remote office PC, the remote user can call to/from HQ via any WAN link using TCP/IP Layer 4 communications
D. With a NBX Network Call Processor (NCP) at each location, users can call to/from the sites via a Virtual Tie Line (VTL) using IP On-the-Fly or a Standard IP license
E. With a NBX system and NBX ConneXtions Gateways at each location, users can call to/from the sites via a WAN link that supports IP protocol, for example, VPN, T1, E1 and Frame Relay
Correct Answer: ADE

Which two are features of the NBX NetSet Administration Utility? (Choose two.)
A. Allows users to sign on with a username of “user” and use their voicemail password for access
B. Is found on 3Com’s NBX systems, as well as, licensed 3rd party Ethernet-based telephony systems
C. Can be accessed through the default IP address of
D. Can be accessed through the default IP address of
E. Allows the administrator to sign on with a username of “administrator” and a password of “0000” for access
70-533 dumps Correct Answer: CE

Which three are true statements concerning Silence Suppression? (Choose 3.)
A. Enabling Silence Suppression prioritizes voice traffic
B. Can be enabled or disabled for the entire system only
C. Can be enabled or disabled only for individual telephones
D. Enabling Silence Suppression reduces network traffic
E. Can be enabled or disabled for the entire system, or for individual telephones and line card ports
F. A device that detects silence in a conversation will not send any packets to the other device during the period of silence
G. A device that detects silence in conversation sends a small packet with a “silence indicator,”rather than a full packet of “digitized silence”
Correct Answer: DEG

How do NBX phones prioritize audio traffic?
A. NBX phones forward all voice packets to IEEE 802.1p aware hubs
B. NBX phones tag voice packets using DiffServ for all LAN communication
C. NBX phones use VLAN-tagged frames with the priority level automatically set to 6
D. NBX phones place audio traffic into a priority queue within the NCP, forwarding all voice traffic before forwarding data packets
70-533 exam Correct Answer: C

Which three are prioritization mechanisms used with the NBX Communication Systems? (Choose three.)
B. Diff Serv
C. IEEE 802.3
D. IEEE 802.1p
E. ANSI 96/RS232
Correct Answer: ABD

Which three are maintenance alert features on the NBX system? (Choose three.)
A. Can send alert to voicemail
B. Can send alert to a pager or email
C. Can send alert to 3rd party voice messaging systems
D. Can be configured to send alerts to up to 15 mailboxes
E. Can be configured to send an alert for any physical device failure
F. Maintenance alert function is supported on the NBX 100 Communications System only
70-533 dumps Correct Answer: ABD

Which two devices are not supported by an NBX Analog Terminal Card (ATC) or Analog Terminal Adapter (ATA)? (Choose two.)
A. Modem
B. FAX machine
C. Cordless phone
D. Credit card reader
E. External bell or pager
F. Standard telephone that requires a DTMF connection
Correct Answer: AD

Which four are features of the NBX Analog Line Card? (Choose four.)
A. An NBX V5000 chassis supports only one Analog Line card at a time
B. The NBX Auto Discover Line Cards function can be used to find newly installed Analog Line Cards
C. In Key System Mode, CO lines connected to an Analog Line Card can be mapped to one or more telephones
D. Its Power Failure Jack provides access to the telephone CO in case of a NBX power failure
E. By default, when a port is mapped to multiple telephones, calls will ring at the lowest extension first, then to the next extension, until the call is answered
F. In PBX System Mode, CO lines connected to an Analog Line Card are pooled and allocated by the Call Processor for use by any phone for outbound calls
G. In Hybrid Mode, incoming calls go to an Auto Attendant only and CO lines are pooled and allocated by the Call Processor for use by any phone on the system
70-533 pdf Correct Answer: BCDF

What is the easiest way for the NBX system administrator to set up calling permissions and/or restrictions for a group of users?
A. Define a Type of Service (ToS) and then assign the ToS to each user
B. Define a Class of Service (CoS) and then assign the CoS to each user
C. Define a User Configuration and then assign the Configuration to each user
D. Define a Type of Service (ToS), define a new group for the users and then assign the group to the new ToS
E. Define a Class of Service (CoS), define a new group for the users and then assign the group to the new CoS
Correct Answer: B

Which four are characteristics or requirements for NBX Bridge Station Appearance (BSA) assuming only 3102 business phones are used in the customer location? (Choose four.)
A. Maps a primary phone to a secondary phone
B. Only need to configure the primary phone settings
C. Up to 16 extensions can be mapped to a common secondary phone
D. To configure BSA settings select Device Configuration / Telephones then select Button Mappings
E. Either phone can answer a call, as incoming primary-phone calls appear on primary and secondary phone
F. Incoming calls to primary phone are automatically transferred to secondary phone based on time-of-day settings
70-533 exam Correct Answer: ACDE

Which four Call Forward user settings are available to a user logged into NetSet on a NBX Communication System? (Choose four.)
A. Forward calls to voicemail box
B. Forward calls to an e-mail inbox
C. Disconnect (no forwarding) calls
D. Forward calls to another phone number
E. Forward calls to an Automated Attendant
F. Do not ring, which places the caller into voice mail
G. Forward calls to the LCD Directory so the caller can contact another employee if they choose
Correct Answer: ACDE

A manager at extension 3002 has asked you to setup a NBX Communication System to allow an assistant at extension 1010 to filter calls. You have decided the best way to do this is Bridged Station Appearance. You have already setup the primary phones button mappings. Which is the correct extension number to add to the secondary phone Bridged Extension Number Field?
A. 1010
B. 1010-2
C. 3002
D. 3002-2
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Which two are features of an NBX Calling Group? (Choose two.)
A. Member phones ring simultaneously for incoming calls
B. Calling Groups are the same as NBX Key Mode configuration
C. Up to 100 Calling Groups can be configured on an NBX 100 system
D. NBX administrator can define “ring progression” for a Calling Group
E. Member login/logout password is defined by NBX administrator using NetSet
Correct Answer: AE

Which three best describe how members Login/Logout of a Hunt Group? (Choose three.)
A. Group members can login and logout as their schedule requires
B. A forced login member is always logged in whether they are at their phone or not
C. To login/logout a user only needs to pickup their phone and enter their voice mail password
D. Administrator can set optional automatic logout to force a logout if an incoming call is not answered at a phone
E. All members must login only once during the day. They are automatically logged out at the end of the day based on the NBX System Business Time definition
F. A dynamic login member must login at the start of a day and will only need to login again if they are logged out after 15 minutes pass between phone calls
70-533 pdf Correct Answer: ABD

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Certifications:The Salesforce.com Certified Administrator
Exam Name:Administration Essentials for New Admins
Exam Code:ADM-201
Total Questions:1010 Q&As

Latest Salesforce ADM-201 practice exam questions and answers
In V2.x code on a 3Com 5000 or 6000 series router, if the firewall is enabled, which packet is NOT inspected by default?
A. Non-fragments
B. First fragments
C. Non-first fragments
Correct Answer: C

In V2.x code on a 3Com 5000 or 6000 series router, which is NOT provided by Application Specific Packet Filtering (ASPF)?
A. Java Blocking
B. Site and content blocking
C. Enhanced session logging
D. Support for Port to Application Mapping (PAM)
E. Defense against Denial of Service (DoS) attacks
Correct Answer: B

In V2.x code on a 3Com 5000 or 6000 series router with firewall enabled, what happens when exact packet matching for fragments is enabled?
A. L3 information is recorded for all fragments
B. L3 information is recorded for first fragments
C. Non-L3 information is recorded for all fragments
D. Non-L3 information is recorded for first fragments
Correct Answer: D

Which term does not describe or refer to a frame relay function or parameter?
Correct Answer: D

What OSI layer do routers operate at in the OSI model?
A. Session
B. Network
C. Physical
D. Data Link
E. Transport
F. Application
Correct Answer: B

Click the Exhibit button. In the diagram, which additional router command is needed to correctly configure CHAP?
A. [RTA] LCP Chap
B. [RTB] Chap enable
C. [RTA-Serial1/0/0] ppp chap user RTA
D. [RTB-Serial1/0/0] ppp chap user RTA
E. [RTB-Serial1/0/0] ppp authentication-mode chap
Correct Answer: C

The PPP LCP protocol is associated with which layer of the OSI model?
A. Session
B. Physical
C. Data Link
D. Transport
E. Presentation
Correct Answer: C

Which three are characteristics of a router? (Choose three.)
A. Forwards packets between networks
B. Connects only networks of similar types
C. Finds the best path from one network to another network
D. Works at Layer 4, the Transport Layer according to the OSI model
E. Connects networks into physically unified internetworks, with each network retaining its own identity
Correct Answer: ACE

Which four are important considerations when planning a wide area network design? (Choose four.)
A. Current and planned throughput requirements
B. Proper WAN traffic management to prevent serious congestion
C. Detailed plan for reconfiguring the WAN when expansion is required
D. Disaster recovery plan that facilitates backing up key corporate data
E. Determining if and how backup links will be incorporated into the WAN design
F. What is required to provide customers and partners reasonable access to your Web site
Correct Answer: ABEF

Frame relay is associated with which layer of the OSI model?
A. Network
B. Session
C. Physical
D. Data link
E. Transport
Correct Answer: D

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Vendor: Microsoft
Certifications: Microsoft SQL Server 2012
Exam Name: Administering Microsoft SQL Server 2012 Databases
Exam Code: 70-462
Total Questions: 198 Q&As

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Which file system command displays the directory entries on a 3Com switch?
A. dir /all
B. cd dir /all
C. display dir
D. display dir /all
E. dir display /all
F. mkdir display /all
Correct Answer: A

What is the purpose of the RIP View command network network_address?
A. Enables RIP on all switches with this network address
B. Enables RIP on the switch that is configured with this IP address
C. Displays all RIP routes associated with this network address or with a subnet of this address
D. Enables RIP on all interfaces that are configured with this network address or with a subnet of this address
Correct Answer: D

Which two are Super-VLAN configuration requirements/limitations on the Switch 8800? (Choose two.)
A. Up to 64 ports can be assigned to a Super-VLAN
B. Up to 64 Sub-VLANs can be assigned to a Super-VLAN
C. ARP, VRRP and DHCP are not supported on Super-VLANs
D. Sub-VLANs terminate at a router and are isolated at Layer 3
E. Super-VLANs are assigned an IP address; Sub-VLANs may not be assigned an IP address
Correct Answer: BE

Which Switch 5500 model(s) does not support Distributed Resilient Routing (DRR)?
A. Switch 5500-EI
B. Switch 5500-SI
C. Switch 5500G-EI
D. All of the above
Correct Answer: B

What is the result of the command boot boot-loader file-url?
A. Reboots the switch using the file-url for the operational code
B. Updates the switch BootROM with the file-url on the system flash
C. Reboots the switch fabric only using the file-url for the operational code
D. Specifies the switch to use file-url for the operational code on the next boot
Correct Answer: D

Click on the exhibit button.
Which Switch 7700 command shows all the hardware and software information on the modules (review the output shown in the exhibit)?
A. [SW7700] display device
B. [SW7700] display version
C. [SW7700] display interfaces
D. [SW7700] display current-configuration
Correct Answer: B

Click on the exhibit button.
What can be determined from the output of the display ip routing-table (based on the IP routing-table information shown in the exhibit)?
A. The default route is
B. Switch interface is connected to network
C. VLAN-interface3 has two IP networks configured on the single switch
D. The most desired paths for forwarding packets are IP network and
Correct Answer: B

Which two methods can be used for day-to-day copying of switch configuration and software files on the Switch 5500/7700/8800? (Choose two.)
A. USB port with a flash drive
B. File Transfer Protocol (FTP)
C. Trivial File Transfer Protocol (TFTP)
D. Simple Network Management Protocol (SNMP)
Correct Answer: BC

Which Switch 5500 command would display the status of the front panel Ethernet port #13 on switch unit #2?
A. [ 5500-EI ] display interface e 2/13
B. [ 5500-EI ] display interface e 2/0/13
C. [ 5500-EI ] display interface e 2/1/13
D. [ 5500-EI ] display interface e 13/0/2
Correct Answer: B

What is the reason to connect the p port on the bottom Switch 5500 in the stack to the down port of the top Switch 5500 in the same stack?
A. Reliability – creates a resilient topology
B. Security – prevents an unauthorized user from connecting to the switch stack
C. Performance – creates the 48-Gbps eXpandable Resilient Networking (XRN) Fabric
D. Management – enables Distributed Resilient Routing (DRR) on the Switch 5500-SI
Correct Answer: A

Click on the exhibit button.
Why is it important to enable Interface Tracking for VRRP routers (based on the VRRP diagram shown in the exhibit)?
A. If a link failure occurs, the path to the virtual gateway will be blocked
B. If a link failure occurs, it takes longer for the VRRP routers to reconfigure the virtual gateway path
C. If a link failure occurs, the master router can configure a new physical link to the virtual gateway
D. If a link failure occurs, a less efficient network path may be used to forward packets to the Internet or connectivity to the Internet may be lost altogether
Correct Answer: D

Click on the exhibit button.
How many OSPF areas are configured on the Switch 8800 (Router ID (based on the set of OSPF commands and diagram shown in the exhibit)?
A. None
B. One
C. Two
D. Three
Correct Answer: C

Click on the exhibit button.
Which IP static route command would configure Switch A with a path to Host C (based on the network diagram shown in the exhibit)?
A. [Switch A]ip route-static
B. [Switch A]ip route-static
C. [Switch A]ip route-static
D. [Switch A]ip route-static
Correct Answer: D

What does a slow (once per second) flashing RUN LED indicate on the Switch 7700 Fabric I/O module?
A. The fabric module is faulty
B. The fabric module is running normally
C. The fabric module is faulty or out of position
D. The fabric module is booting or has not registered successfully
Correct Answer: B

What is the result of configuring a switch port that permits traffic from all Virtual LANs (VLANs), i.e., configured as a Trunk Port?
A. All VLANs will be tagged
B. All VLANs will be untagged
C. VLAN 1 will be tagged; all other VLANs will be untagged
D. VLAN 1 will be untagged; all other VLANs will be tagged
Correct Answer: D

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What is the most common Layer 2 method for handling multicast traffic?
C. IGMP Snooping
Correct Answer: C

Which two features are supported on all Switch 8800 I/O modules? (Choose two.)
A. Small Form-factor Plug-in (SFP) interface for all Ethernet ports
B. IEEE 802.3ad Link Aggregation
C. Layer 2/ Layer 3 switch packet processing
D. Each interface module maintains its own routing and forwarding tables
Correct Answer: BC

Which three features are only supported on the Switch 5500G-EI switch models? (Choose three.)
A. Hot-swappable Application Module Slot
B. PoE upgradeable power supply unit
C. Four GBIC Small Form-factor Plug-in (SFP) ports
D. 24 or 48 10/100/1000 Mbps ports
E. Port-based VLANs
Correct Answer: ABD

Which component of XRN technology is defined as: “An advanced routing implementation that allows multiple interconnected switches in an XRN solution to behave as a single active routing entity”?
A. Distributed Resilient Routing (DRR)
B. XRN Interconnect
C. Distributed Device Management (DDM)
D. Distributed Link Aggregation (DLA)
Correct Answer: A

The Switch 5500 supports multiple runtime and configuration files in its flash file system.
A. False
B. True
Correct Answer: B

The Switch 5500 supports Simple Network Management Protocol (SNMP) V1, V2 and V3.
A. True
B. False Correct Answer: A QUESTION 7
Which three technologies can be used to provide a high level of network availability? (Choose three.)
A. Internet Group Membership Protocol (IGMP) Snooping
B. Virtual LAN-centric (VLAN-centric) network design
C. Virtual Router Redundancy Protocol (VRRP)
D. IEEE 802.1w Rapid Spanning Tree Protocol (RSTP)
E. eXpandable Resilient Networking (XRN)
F. Cut-through switching
Correct Answer: CDE

Match each Spanning Tree acronym with its definition.
Correct Answer:

Which two are features of IEEE 802.1X Network Login? (Choose two.)
A. Authenticates users before they gain access to the network
B. All authorization can be administered centrally
C. Security administrators must use the history log file to determine who is accessing the network
D. Devices such as telephones are automatically authenticated based on IP address
Correct Answer: AB

Which three are benefits of Open Shortest Path First (OSPF) over Routing Information Protocol (RIPv1)? (Choose three.)
A. Provides faster convergence
B. Updates neighbor routers by sending complete router table
C. Performs packet flooding using broadcasts
D. Employs equal-cost, multi-path (ECMP) routing
E. Supports flexible subnet schemes
Correct Answer: ADE

Which two are features of the Switch 7700 and Switch 8800 Spanning Tree Protocol configuration and support? (Choose two.)
A. RSTP considers VLANs in its calculation
B. Both switches support “STP disable per port”
C. Spanning Tree is enabled by default
D. Use Multiple Rapid Spanning Tree Protocol (MSTP) to enable VLAN-specific links between multiple switches
Correct Answer: BD

Which two queuing features are supported on the Switch 8800? (Choose two.)
A. QoS policies are based on Layer 2 packet information only
B. Eight output queues per port
C. The switch only supports Strict Priority (SP) queuing
D. The switch supports multiple queuing algorithms (i.e., Strict Priority (SP) queuing, Weighted Random Early Discard)
Correct Answer: BD

Which two are Layer 2 features of the Switch 5500 family? (Choose two.)
A. User definable MAC table aging period
B. GARP Multicast Registration Protocol (GMRP)
C. Multiple Spanning Tree Protocol (MSTP)
D. Rapid Spanning Tree Protocol (RSTP)
Correct Answer: AD

Which two are security features on the Switch 8800? (Choose two.)
A. Switch requires an external RADIUS server for user authentication
B. Switch can act as both authenticator and authentication server
C. Supports a single supplicant on each physical port
D. IEEE 802.1X Network Login can be enabled globally or on individual ports
Correct Answer: BD

What is a purpose of the Switch 5500 automatic VLAN and QoS assignment?
A. Always applies the administrative configuration to the port at login
B. Dynamically creates a new VLAN using RADIUS Authentication of Device Access (RADA) specifications
C. VLAN and QoS profile are supplied by the RADIUS server when a user logs on
D. Preconfigures the port with the VLAN and QoS configurations
Correct Answer: C

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