An IP phone connects a user to a switch as shown below：
Based on the diagram shown above， which statement is true about the voice traffic coming to theswitch access port that is connected to the IP phone？（）
A.A PC connected to a switch port via an IP phone is unaware of the presence of the phone
B.The traffic on the voice VLAN must be tagged with 802.1p encapsulation in order to coexist onthe same LAN segment with a PC
C.To improve the quality of the voice traffic， no other devices should be attached to the IP phone
D.The voice VLAN must be configured as a native VLAN on the switch
E.A PC connected to a switch port via an IP phone must support a trunking encapsulation
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A.Antenna power is a relative value reference to dBi
B.LWAPP allows encrypted communications between lightweight access points and WLANcontrollers.
C.Characteristics of antennas are directionality， gain， and polarization
D.Power over Ethernet （PoE） is only available when a WLAN controller is integrated into thenetwork
E.The WLAN solution Engine （WLSE） is used to control lightweight access points
F.One of the advantages of the lightweight WLAN solution is that the devices act indepently
Network topology exhibit：
In this WLAN segment， what are three requirements for configuring these Aironet access points（APs） that will allow for all wireless clients to work without service interruption while roaming fromaccess point to access point？（）
All access points should be configured....
A....with a unique IP subnet range
B....with identical SSIDs
C....within the same IP subnet
D....with the same guest mode SSID
E....only with the native VLAN
F....with the native VLAN
A.association request/response， probe request/response， authentication request/response
B.association request/response， authentication request/response， probe request/response
C.probe request/response， authentication request/response， association request/response
D.probe request/response， association request/response， authentication request/response
E.None of the other alternatives apply
Exhibit：
In this scenario the signal transmitted from the AP is reflected off a wall， resulting in multipathinterference at the client end （ClientA）. Which of the following statements is true？（）
A.The transmitted signal from the AP arrives at the client at slightly different times resulting inphase shifting
B.Multipath interference can be solved by using dual antennas
C.If signal 2 is close to 360 degrees out of phase with signal 1， the result is essentially zero signalor a dead spot in the WLAN
D.Multipath interference is less of an issue when using a DSSS technology because multipath isfrequency selective
E.If signal 1 is in phase with signal 2， the result is essentially zero signal or a dead spot in theWLAN
F.None of the other alternatives apply
Exhibit：
You work as a network technician. Please study the exhibit carefully. In this wireless network， theLAP （lightweight access point） attempts to register to a WLC （Wireless LAN Controller）. What kindof message is transmitted？（）
A.The lightweight access point will send Layer 2 and Layer 3 Lightweight Access Point （LWAPP）mode discovery request messages at the same time
B.The lightweight access point will send Layer 3 Lightweight Access Point （LWAPP） modediscovery request messages only
C.The lightweight access point will send Layer 2 Lightweight Access Point （LWAPP） mode discovery request messages. If the attempt fails， the LAP will try Layer 3 LWAPP WLC discovery
D.The lightweight access point will send Layer 2 Lightweight Access Point （LWAPP） modediscovery request messages only
A.Switchover ensures that Layer 2 through Layer 4 traffic is not interrupted
B.Redundancy requires BGP， OSPF， EIGRP， or IS-IS
C.Redundancy provides fast supervisor switchover for all Cisco Catalyst 6500 series switches
D.Switchover can be caused by clock synchronization failure between supervisors
A.independent of SSO
B.NSF combined with SSO enables supervisor engine load balancing
C.supported by RIPv2， OSPF， IS-IS， and EIGRP
D.supports IPv4 and IPv6 multicast
E.prevents route flapping
F.dependent on FIB tables
A.Static IP routes are maintained across a switchover because they are configured from entries inthe configuration file
B.Information about dynamic routing states， maintained on the active supervisor engine， issynchronized to the redundant supervisor engine and is transferred during the switchover
C.Information about dynamic routing states， maintained on the active supervisor engine， is notsynchronized to the redundant supervisor engine and is lost on switchover
D.The Forwarding Information Base （FIB） tables are cleared on a switchover. As a result， routedtraffic is interrupted until route tables reconverge
E.Static IP routes are cleared across a switchover and recreated from entries in the configurationfile on the redundant supervisor engine
F.The Forwarding Information Base （FIB） tables are maintained during the switchover. As aresult， routed traffic continues without any interruption when the failover occurs
A.An SVI is normally created for the default VLAN （VLAN1） to permit remote switchadministration
B.Multiple SVIs can be associated with a VLAN
C.SVI is another name for a routed port
D.An SVI is created by entering the no switchport command in interface configuration mode
E.An SVI provides a default gateway for a VLAN
A.private VLANs
B.port security
C.BPDU guard
D.dynamic ARP inspection
E.DHCP snooping
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