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Perguntas do quiz (113)
11. What is the command used to show which SSIDs are configured on your Cisco Aironet 1200 AP?
- Ashow ssid
- Bshow dot11 ssid
- Cshow dot11 bssid
- Dshow run ssid
2How much overlap do wireless repeaters require?
- A50%
- B10%
- C25%
- DNone
3Select the correct Bridge network topologies:
- APoint-to-point
- BPoint-to-multipoint
- CStar
- DMesh
4Which organization is responsible for interoperability testing of 802.11 equipment?
- AWi-Fi Alliance
- BISO
- CFCC
- DIEEE
5In order to set up an Ad hoc network a user must know which two parameters?
- ASSID
- BBSSID
- CChannel
- DMAC Address
- EProtection Mode
6A basic service set identifier (BSSID) is the MAC address of the _______.
- ARouter
- BAP Ethernet port
- CAP radio
- DClient
7Once you have fully configured your SSID, what is the next step?
- AAssign the SSID to the BVI
- BEnable guest mode
- CPowercycle the AP for changes to take effect
- DAssign the SSID to the Dot11Radio 1 interface
8The result of Hidden node problem is:
- AFragmentation frames
- BData Frame
- CCollision
- DRTS/CTS
9The process in which a wireless LAN client connection moves from one access point to another is called ____________.
- ARebuilding
- BReassociation
- CReauthentication
- DRoaming
10In wireless communication the sender knows a collision has not happened if:
- ANo ACK frame received.
- BNo RTS/CTS received.
- CRTS/CTS frame received.
- DACK frame received.
11Hidden node problem:
- AWhen the wireless client is in the range of other wireless clients but not the Access Point.
- BWhen the Access Point is in the range of the wireless clients.
- CWhen the wireless client is in the range of the Access Point and other wireless clients.
- DWhen the wireless client is in the range of the Access Point but not other wireless clients.
12In an autonomous AP configuration, how is the AP configured?
- Aa. Configuration is made on a controller, and the controller sends the configuration via a tunnel to the AP.
- Bb. Configuration is pushed to the AP via a console, HTTP, or Telnet connection.
- Cc. The AP is pre-configured before shipping
- Dd. None of the above.
13An 802.11 wireless network name is known as which type of address?
- AMAC address
- BSSID
- CBSSID
- DIP address
14Which of the following statements is true about the BVI?
- AYou must assign each SSID to a BVI
- BThe BVI is represented by the Dot11Radio 1 interface
- CThere can be multiple virtual bridges, but only one bridge virtual interface
- DThe BVI provides IP addressing for the wireless network
15At 5 GHz, which transmission speed can be delivered by IEEE 802.11a compliant devices?
- Aup to 100 Mbps
- Bup to 54 Mbps
- Cup to 10 Mbps
- Dup to 11 Mbps
16AP could be configured to work on those modes:
- AScanner mode
- BAccess point
- CWorkgroup Bridge mode
- DBridge mode
- ERepeater mode
17Which amendment to the standard operates in the 2.4 GHz ISM band and supports data rates up to 54 Mbps?
- A802.11a
- B802.11n
- C802.11g
- D802.11b
18The Distributed Coordination function is a form of:
- ACSMA/CA
- BCSMA/CB
- CCSMA/CC
- DCSMA/CD
19To use multiple wireless networks coverage option in the same vicinity we need:
- ATo use the same SSID, and different channel
- BTo use the same SSID, and same channel
- CTo use the different SSID, and same channel
- DTo use the different SSID, and different channel
20In order for stations on different WLANs/VLANs to communicate, you need to add a ____________ device:
- ARepeater
- BAP
- CSwitch
- DRouter
21Which two 802.11 topologies do not require the use of an access point?
- AESS
- BAd hoc
- CBSS
- DIBSS
22Which OS are the Cisco Bridges running in the lab?
- ACisco IOS
- BVMWare
- CLinuxLinux
- DVXWorks
23802.11n can operate in these frequency bands:
- A2.4 GHZ
- B5.5 GHZ
- C11 GHZ
- D5 GHZ
24IEEE 802.11a/b/g/n devices use what type of communication?
- AFull duplex
- BHalf diplex
- CFull diplex
- DHalf duplex
25When configuring Autonomous Access Point (AP) for multiple VLANs, how many BVI interfaces you should configure?
- AOne
- BTwo
- COne per each SSID
- DOne per each VLAN
26ACK and CTS frames follow which interframe space?
- APIFS
- BEIFS
- CDIFS
- DSIFS
27After the station has performed the carrier sense and determined that no other devices are transmitting for a period of a DIFS interval, next step is for the station to do what?
- ABegin the random back-off timer
- BSelect a random back-off value
- CBegin transmitting
- DWait the necessary number of slot times before transmitting
28Dot11Radio 1.3 refers to:
- AA sub-interface on the Dot11Radio 1 interface
- BVLAN 3 on the Dot11Radio 1 interface
- CThe first sub-interface on interface Dot11Radio 3
- DAn SSID
29How are the Cisco APs in the lab powered?
- Aac adapters
- Bcrossover cable behind the patch panel
- Cpower injectors behind the patch panel
- Dpower jack in the wall
30What frame exchange process can be used by a station to reserve the medium?
- ARTS/CTS
- BFragmentation frame
- CACK Frame
- DData Frame
31A Repeater will extend the wireless coverage of an AP but it will:
- AIncrease the network throughput
- BNot affect the network throughput
- CDouble the network throughput
- DDrop the network throughput in half
32The wired network to which a wireless AP is connected is known as the Distribution System.
- AVerdadeiro
- BFalso
33Which of the following is not a method of implementing Power over Ethernet (PoE)?
- ADC Adapter
- BPower injectors
- CInline power patch panel
- DSwitch ports with inline power
34When configuring Cisco AP for a hot standby, you need to add the below command:G1-STDBY(config)#iapp standby mac-address 000e.83af.75a2
Which address is used in this command?- AThe MAC address of the Radio Interface of the Standby AP
- BThe MAC address of the fast Ethernet of the Standby AP
- CThe MAC address of the fast Ethernet of the Primary AP
- DThe MAC address of the Radio Interface of the Primary AP
35The 802.1X standard identifies the authenticator as another term for the _____________ in wireless networking.
- AClient device
- BEAP Server
- CRADIUS server
- DAccess point
36An AP can belong to many AP group profiles and may support multiple WLAN profiles
- AVerdadeiro
- BFalso
37802.11n supported high speed by using multiple technologies: (Select all that apply)
- AWider channel through the use of 40 MHz channels
- BMIMO
- CImproving the OFDM subcarriers
- DSISO
38Select the disadvantage of an Atomonous AP:
- AAtonomous AP connected to their Controller through a GRE tunnel
- BEach AP must be separately configured, managed, and maintained.
- CNeed for a centralized Controller to configure the Wireless network.
- DCan't use Atonomus AP with Fat AP.
39How many non-root bridge exist in a point-to-multipoint bridge link?
- AThree.
- BMultiple
- CTwo
- DOne
40The sum of all the components from the transmitter to the antenna, not including the antenna, is known as what? (Select 2)
- AIR
- BEIRP
- CIntentional radiator
- DIsotropic radiator
41When a wireless LAN device sends a prob request frame, it is participating in which phase?
- AAuthentication
- BPower save
- CPassive scanning
- DActive scanning
42NetStumbler can be used to discover the wireless network.
- AVerdadeiro
- BFalso
43What are the "two" ports within the authenticator that allow for 802.1X functionality?
- AWireless
- BUncontrolled
- CEthernet
- DControlled
44A point-to-point link always uses an omnidirectional antenna.
- AVerdadeiro
- BFalso
45Aruba controller can be configured as a DHCP server?
- AVerdadeiro
- BFalso
46STA is used to represent a Wireless station.
- AVerdadeiro
- BFalso
47Which two of the following options are for Wi-Fi Protected Access 2 (WPA 2.0)?
- AProfessional mode
- BPersonal Mode "using passphrase"
- CWPA 2 mode
- DProtection mode
- EEnterprise mode "using 802.1X / EAP"
48What does 802.1X/EAP provide when implemented for WLAN security? (Select all that apply)
- ADynamic encryption-key generation
- BVerification of access point credentials
- CAccess to network resources
- DVerification of user credentials
- EDynamic authentication
49WPA2-Personal is using a passphrase for authentication
- AVerdadeiro
- BFalso
50When designing the wireless network, do we need to give the AP an IP address?
- AYes, the AP must use an IP address to be able to use the POE.
- BNo, the tunnel will be created from the wireless client to the controller.
- CNo, AP does not need for an IP address to send the wireless traffic to the controller.
- DYes, GRE need to be created from the IP address of the AP to the IP address of the controller.
51The 802.11i amendment to the standard addresses which of the following technologies?
- AMIMO
- BDSSS
- CSecurity
- DQuality of service
52Select the correct statementS:
- AThe default IP address for Aruba controller is: 172.16.0.254
- BThe default subnet mask for aruba controller is: 255.255.0.0
- CTelnet is the only available method to configure Aruba Controller
- DThe default management and native VLAN is VLAN 1
53To reset an Aruba AP to its default settings:
- Areset, purge, save
- Bwrite erase, purge, reset
- Cpurge, write erase, reset
- Dsave, purge, reset or boot
- Epurge, save, reset or boot
54Aruba Controller 3200 series can be used on a wrieless design that implements 64 APs.
- AVerdadeiro
- BFalso
55After a station sees its AID in the TIM, what typically is the next frame that the station transmits?
- AATIM
- BPS-Poll
- CACK
- DData
56Virtual AP profile includes which subprofiles: (Select all that apply)
- ASSID profile
- BWLAN profile
- CAP profile
- DAAA profile
57Which of the following are valid calculations when using the rule of 10s and 3s? (Select all that apply)
- AFor every 10 dB of loss (absolute), multiply the relative power (mW) by a factor of 10
- BFor every 3 dB of gain (relative), double the absolute power (mW)
- CFor every 10 dB of loss (relative), divide the absolute power (mW) by a factor of 10
- DFor every 10 mW of loss (relative), multiply the absolute power (dB) by a factor of 10
58In centralized WLAN Architecture, all the intelligence resides in the LWAP.
- AVerdadeiro
- BFalso
59Which security solution may be used to segment a wireless LAN?
- AVLAN
- BTKIP/RC4
- CWEP
- DCCMP/AES
60When using 802.1X wireless security solution, which device would be considered the supplicant?
- AWLAN Controller
- BWireless Client
- CRADIUS server
- DLight Weight Access Point
61Aruba APs determine the WLC IP address by: (Select all that apply)
- ASending an ADP multicast traffic
- BAP does not need to get the IP address of the WLC.
- CDHCP service through option 43
- DSending an ADP broadcast traffic
62How many non-root bridge exist in a point-to-point bridge link?
- AOne.
- BMultiple.
- CNone
- DTwo
63Aruba APs use UDP port 8211 to establish a PAPI connection to the Aruba Controller and use GRE port 47 to tunnel wireless client traffic to the Aruba Controller.
- AVerdadeiro
- BFalso
64WPA2-Enterprise uses 802.1X for authentication
- AVerdadeiro
- BFalso
65Which technologies are used in the 2.4GHz ISM band? (Select all that apply)
- AHR-DSSS
- BDSSS
- CFHSS
- DOFDM
66What type of antenna is best used for WLAN point-to-multipoint configuration?
- AOmnidirectional for the hub and directional for each link
- BDirectional for the hub and directional for each link
- CDirectional for the hub and omnidirectional for each link
- DN/A
67What three main components constitute an 802.1x/EAP framework?
- ASupplicant
- BAuthorizer
- CAuthentication server
- DIntentional radiator
- EAuthenticator
68Choose the correct statement:
- AIt is recommended that not more than 3 hops be used.
- BThe repeater setup requires a 50% overlap of the AP on the backbone and the wireless repeater.
- CA wireless repeater is an access point that is connected to the wired backbone.
- DThe repeater setup requires a 10-15% overlap of the AP on the backbone and the wireless repeater.
69Which security feature provides the strongest security for a home-based wireless network?
- A128-bit WEP
- BPassphrase
- CMAC filters
- DSSID hiding
70Aruba AP create a GRE tunnel to the WLC to carry:
- AData traffic
- BControl traffic
- CData traffic as well as control traffic
71To double the distance of a signal, the EIRP must be increased by how many dBs?
- A10 dB
- B20 dB
- C3 dB
- D6 dB
72Which terms best describe components of a centralized WLAN architecture in which all the intelligence resides in a centralized device and pushes the configuration settings down to the access point? (Select all that apply)
- AStand alone Access point
- BEnterprise wireless gateway
- CLWAP
- DFat Access Point
- EWLC
73When designing a wireless network for VOICE what is the signal strength you need to use as a best practice?
- A-80 dBm
- B-65 dBm
- C-50 dBm
- D-70 dBm
74LWAP stands for:
- ALocal Wireless Access Point.
- BLightweight Wireless Access Point
- CLocal Weight Access Point.
- DLightweight Access Point.
75To Secure wireless network use EAP-TLS (Digital Certificate) to authenticate Wireless user and AES to encrypt the wireless traffic.
- AVerdadeiro
- BFalso
76Hiding the Service Set Identifier of a wireless LAN will require a user to _______________ in order to gain access to the wireless network.
- AKnow the SSID and enter it manually
- BEnter a username and password when prompted
- CCall the help desk and ask for a new password
- DEnable the SSID broadcast on the client device
77When using an 802.11 wireless controller solution, which device would be considered the authenticator?
- ARADIUS database
- BLDAP
- CFat Access point
- DRoot Bridge
- EWLC
78What is the name of the tool that you used in one of the lab to design the Wireless Network for a floor map?
- AAruba VirtualRF
- BEKAHAU
- CCisco Prime
- DAruba AirWave
79A standard measurement of frequency is called?
- ANanosecond
- BHertz
- CMilliwatt
- DDecibel
80Select the incorrect feature of Centralized WLAN Architecture:
- AAll the intelligence resides in the centralized WLAN controller.
- BUse Fat AP.
- CWireless traffic tunnels between the LWAP and the controller.
- DUse LWAP also known as Thin AP.
81Some LWAP may have multiple radio cards that provide dual 2.4 GHz and 5 GHz coverage at the same time.
- AVerdadeiro
- BFalso
82How many access points can be co-located without channel reuse in the same radio frequency area to maximize total system throughput while minimizing RF interference in an IEEE 802.11 b/n network?
- A6
- B2
- C3
- D4
83When configuring the router for NAT “Network Address Translation”, why we need to configure an access control list “ACL” “access-list 1”:
- ATo tell the router to only translate the IP addresses configured in this ACL.
- BTo tell the router to deny 192.168.20.0 to access the network.
- CTo tell the router to permit 10.0.0.1 to access the network.
- DNo need to add this ACL to the router.
84A 802.11 WLAN transmitter that emits an 80 mW signal is connected to a cable with a 3 dB loss. If the cable is connected to an antenna with 16 dBi of gain, what is the (EIRP) at the antenna element?
- A320 mW
- B800 mW
- C1600 mW
- D1200 mW
85How do you configure a controller as a DHCP to serve the AP with an IP address?
- AEnable the DHCP Server on the ControllerDo not configure the DHCP Pool
- BOnly enable the DHCP Server on the Controller
- CDisable the DHCP Server on the ControllerConfigure the DHCP Pool
- DEnable the DHCP Server on the ControllerConfigure the DHCP Pool
86What is the purpose of a wireless access point?
- ATo broadcast an SSID to the world.
- BTo provide IP addressing to a wireless segment of the Internet
- CTo provide a wireless extension to the wired distribution system
- DAll of the above.
87What is the frequency range of operation in the 802.11ac standard for WLAN?
- A5 GHz
- B5.5 GHz
- C2.4 GHz
- D11 GHz
88An 802.11 wireless network name is known as which type of address?
- AIP address
- BMAC Address
- CBSSID
- DESSID or SSID
89802.11n is using this technology to simultaneously send traffic from the transmitter to the receiver and
improve communication performance:- ASISO
- BMIMO
- CARUBA
- DSYSCO
90You need to configure Cisco AP1200 in your lab with an IP address to manage it? Which interface
will you configure with the following settings:
IP address, subnet mask, and no shutdown- AF0 interface
- BDot11 radio 1 interface
- CBVI interface
- DF0.1 interface
- AF0 interface
91Cisco Aironet AP primarily operate at which layer of the OSI reference Model?
- ATransport Layer
- BData Link Layer
- CSession Layer
- DNetwork Layer
92What is the frequency range of operation in the 802.11b standard for WLAN?
- A2.4 GHz
- B5 GHz
- C5.5 GHz
- D11 GHz
93The association process happens after which phase?
- ADistribution
- BDeauthentication
- CReauthentication
- DAuthentication
94In order for a wireless client to become completely part of the basic service set it must first
________________ then ________________.- AAuthenticate, associate
- BAssociate, authenticate
- CDiassociate, authenticate
- DDeauthenticate, authenticate
95The AP usually learns the Wireless client’s Source address from different frames, but it will officially add
the wireless client to it MAC table from _______________ frame.- AAuthentication Request
- BAssociation Request
- CProbe Reply
- DProbe Request
96For 802.1x which port is used for accounting on the RADUIS Server?
- A1813
- B1811
- C1812
- D1810
97For the bridge that is configured in a Non-Root role, you need to configure it with the __________ of the radio interface of the Root Bridge:
- ADefault gateway
- BMAC address of the preferred Access Point “Bridge”
- CIP address
- DSubnet mask
98Devices compliant with which amendment to the IEEE standard use multiple radio chains and multiple antennas?
- A802.11g
- B802.11a
- C802.11n
- D802.11b
99The Yagi antenna is considered to be what kind of antenna?
- ADirectional
- BOmnidirectional
100The 802.11-2007 standard requires how much separation between center frequencies for HR-DSSS channels to be considered non-overlapping?
- A22 MHz
- B35 MHz
- C30 MHz
- D40 MHz
- E25 MHz
101802.11a uses which spread spectrum technology?
- AOFDM
- BERP-OFDM
- CHR/DSSS
- DFHSS
102Which of the following best represents the Fresnel Zone?
- AVisual Line of Sight
- BRadio Frequency Line of Sight
- AVisual Line of Sight
103What are the categories for linear polarization?
- ARight or left
- BFront or back
- CLength or width
- DVertical or horizontal
- ARight or left
104With antenna diversity, which antenna does the access point choose to transmit and receive?
- AThe right antenna
- BNeither; the network administrator should always assign one of the antennas
- CThe left antenna
- DWhichever antenna the access point evaluates as having the best signal
105Gain on an isotropic antenna is measured in _________ units.
- AdBi
- BdB
- CdBm
- DdBd
10623 dBm is equal to how many mW?
- A400 mW
- B14 mW
- C23 mW
- D200 mW
- E20 mW
107Gain on a dipole antenna is measured in _________ units.
- AdBm
- BdBd
- CdB
- DdBi
108What term refers to correct antenna alignment?
- APower
- BPolarization
- CPlacement
- DPeriod
109802.11a uses which spread spectrum technology?
- AERP-OFDM
- BHR/DSSS
- CFHSS
- DOFDM
110The Two main objectives of a WLAN site survey are:
- ATo find areas of RF coverage and interference sources.
- BTo find the installation locations for hardware infrastructure devices, such as APs,
bridges, antennas, and any other Wireless devices. - CTo find the installation locations for wired PCs.
- DTo check the operating system of the wired PCs
- ATo find areas of RF coverage and interference sources.
111The Wireless client and the AP exchanged which frames when in open system
authentication process?- AAssociation Request, Association Reply
- BAuthentication Request, Authentication Reply
- CAssociation Request, Authentication Reply
- DAuthentication Request, Association Reply
112Which technology used in wireless LANs uses the effects of multipath to provide data rates of 300 Mb
- AHR/DSSS
- BHT/DSSS
- CSISO
- DMIMO
- AHR/DSSS
113are you gonna ace this fucking test?
- AOf course
- BOf course!
Informações
- Descrição
- Quiz sobre Sem título, criado por yousweetdreams em 10-12-2014.
- Autor
- yousweetdreams
- Idioma
- English
- Visualizações
- 65
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