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Test your basic knowledge |
Wireless Technology Specialist
Start Test
Study First
Subject
:
it-skills
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. In this mode a station can act as a relay or WLAN range extender
Unicast
WPA2 -WEP
Repeater
Personal mode and Enterprise Mode
2. ____ provides wireless access to a group of wired stations 'behind' the bridge. It aggregates multiple wired clients into one collective wireless client known as a 'Client bridge'
Workgroup Bridge mode.
WPA2 -WEP
FHSS
Dual radio APs
3. Which data encryption.authentication method is identified in the IEEE 802.11 standard
Dual radio APs
Interference from a neighboring access point RF denial-of-service (Dos) attack
Degradation
WEP
4. Maximum length of data (Frame body) is 2304 when ____ is not in use
Enter a username and password that will be central administered
Highly directional= Parabolic = 3-15 degrees - Omnidirectional= Rubber duck = 360 degrees - Semidirectional= Panel = 180 degrees
Fakeauth
Encryption
5. if operating with _____ - clients and AP communications all contend for the same half-duplex medium which causes a degradation of overall throughput
6. According to the IEEE 802.11 standard - an extended service set (ESS) consists of how many interconnected basic service sets?
802.11b HR/DSSS and 802.11 DSSS
Deauth
RTS/CTS
One or more
7. The 802.11i amendment to the standard addresses which of the following technologies?
802.11r
1 -6 -11
Ad-Hoc
Security
8. Bluetooth uses a radio technology called
Point-to-point link
FHSS
LTE
WPA2
9. When an RF signal bounces off a smooth non absorptive surface - the behavior is
AES = CCMP required
Reflection
Active mode
WPA2 -WEP
10. in the 2.4GHz range - what distance between the center frequencies is required for two channels to be considered non-overlapping for HR/DSSS
Monitor
Spoof an address
25 MHz
Height of an RF signal
11. You support a wireless network for an office of five employees. The installation consists of one access point - three notebook computers - and two desktop computers. The access point and computers in the office have wireless adapters that are Wi-Fu W
SSID (service set identifier)
Automatically monitor the network for attacks
WPA 2.0 personal and WPS
Master
12. This type of MITM attacks mimics the SSID to lure clients in to associating with the attackers device
Walled Garden.
Trojan/Rogue APs
Workgroup Bridge mode.
Height of an RF signal
13. 802.11a uses which spread spectrum technology?
11
OFDM
DBi
Dual radio APs
14. This is implemented in networks to minimize the effects of excessive collisions in mixed 802.11b and 802.11g networks
Small Office/Home Office Organizations (SOHO)
Arp
Open system and Shared key
RTS/CTS
15. How many channels are available for wireless LAN use in the unlicensed middles UNII 2e band?
RC4
Root mode - Bridge mode - Workgroup Bridge mode - Workgroup Bridge mode - Repeater Mode - Mesh Mode - Scanner Mode.
Refraction
11
16. The range of a 2.4GHz signal is mostly dependent on what RF characteristic?
Client
Mesh
Wavelength
Authenticate - associate
17. A basic service set (BSS) consists of how many access points
1
Extended Service Set (ESS)
Open system
Beacons - Probe request - Probe response - Association Request - Reassociation Request
18. An independent basic service set (IBSS) consists of how many access points?
Repeater
Plaintext
Extended Service Set (ESS)
0
19. What two devices use RF to communicate
Passphrase
802.11a
Transmitter and receiver
Trojan/Rogue APs - Arp spoofing - DNS spoofing
20. Aireplay-ng -3
Arp
40 bit
AP to AP
Monitor
21. What protocol am I? - 2.4GHz Freq - 2 Mbps Data Rate - DSSS/FHSSS
Authentication
FCC
ERP-OFDM - DSSS
802.11
22. _____ are multifunctional devices which are combined with an AP to provide wireless connectivity
Wireless gateways
22MHz wide
CCMP
Mesh network
23. How many non-overlapping channels are available in the unlicensed 2.4GHz ISM band?
BSSID (Basic Service Set identifier)
3
Mesh
AES = CCMP required
24. This is the most common WLAN topology which uses one AP to support clients in a single cell of coverage and has one unique SSID.
Master
Passive scan
Mesh
Basic Service Set (BSS)
25. in the 802.11a amendment - the UNII-3 band can be used for which WLAN applications?
One or more
Ad-Hoc
AP to AP
Indoor and outdoor
26. You are a technical support engineer and provide help desk support for the network in a manufacturing company. You receive a call from the sales manager - who wants to know how power save operations should be set up on her notebook computer to optimi
Active mode
Management - control - data
Other 802.11a devices
Greenfield mode
27. In repeater mode - the repeater device connects to a normal '___ mode'
Wi-Fi Alliance
Root mode
Refraction
Secure Layer 3 transmissions over a public network infrastructure
28. Which security feature provides the strongest security for a home-based wireless network?
Passphrase
Encryption
Access point
25 MHz
29. 802.11g LAN operates in what frequency range?
2.4-2.5GHz
Access point
Repeater
Root mode
30. Typically a point-to-multipoint link consists of ____ connections
802.11w
Three
Automatically monitor the network for attacks
Indoor and outdoor
31. You are a network administrator and are asked for a security recommendation regarding older wireless 802.11-compliant VoIP handsets. The company does not have the budget to upgrade the equipment at this time. Which would be the best recommendation yo
Carefully plan a strategy using WEP and VLANs
Root mode - Bridge mode - Workgroup Bridge mode - Workgroup Bridge mode - Repeater Mode - Mesh Mode - Scanner Mode.
802.11a
40 bit
32. ____ is one way to reduce the effects of multipath. Is is a technology used in wireless LANs where a station will utilize two antennas combined with one radio to decrease the effects of multipath
Height of an RF signal
Antenna diversity
Beacons - Probe request - Probe response - Association Request - Reassociation Request
Arp replay
33. This is the default mode that sets the card as a client that could then connect to an AP
RTS/CTS
Encryption
WPA/WPA2
Managed
34. Bridge mode will not allow client associations and is ______ only
Independent
DBi
AP to AP
Encryption
35. A weakness with MAC filtering is that it allows an intruder to ____
Spoof an address
802.11n
LTE
CCMP
36. Two characteristics of signals are
Dynamic Rate switching
64-bit - 128-bit
Amplitude and phase
Authenticate - associate
37. What protocol am I? - 2.5/5 GHz Data rate - 248 Mbps - OFDM/MIMO
Station (STA)
802.11n
Trojan/Rogue APs
Managed - Master - Monitor - Mesh - Ad-hoc - Repeater
38. WHich security solution is mandatory for client devices in order to be considered Wi-Fi Protected setup certified?
Unencrypted
PIN
ERP protection
802.11i
39. 5.0 GHz - Ch 36 and up - Non overlapping - 23 total channels
UNII
Passphrase
Secure Layer 3 transmissions over a public network infrastructure
Station (STA)
40. Hiding the service set identifier of a wireless LAN will require a user to ____ in order to gain access to the wireless network
Three
Know the SSID and enter it manually
WEP
SSID (service set identifier)
41. The card is set to passively monitor all wireless signals at the RF level and is not part of any network nor is it joined to any access point
Fake auth
32
Encryption
Monitor
42. ___ are used to describe the basic components and topology of a WLAN
Ad-hoc mode - also calles Independent Basic Service Set (IBSS) - or Peer-to Peer. The client that initiated the network will randomly generate a BSSID value to use within the network.
SOHO brands that support WPS
Service sets
Station (STA)
43. When RF passes or bends around an obstacle such as a building or column - the behavior is
802.11i
Workgroup Bridge mode.
FHSS
Diffraction
44. The Layer 2 frame will be...
Wireless gateways
Point-to-point link
Unencrypted
802.11w
45. Collisions are detected through the use of....
Acknowledgement frames
BSSID (Basic Service Set identifier)
Personal mode and Enterprise Mode
25 MHz
46. You are a sales engineer connected to an IEE 802.11a access point with a mobile computer. As you move away from the access point - the connection speed slows to the next lowest supported data rate. The change in data rate is described by what term?
7
Dynamic Rate switching
Trojan/Rogue APs
Point-to-point link
47. This type of attack is used to stimulate large amounts of traffic on the network for statistical attacks on WEP
Arp replay
Managed - Master - Monitor - Mesh - Ad-hoc - Repeater
Two
Secure Layer 3 transmissions over a public network infrastructure
48. A basic service set identifier (BSSID) is the MAC address of the ____
7
AP radio
40 bit
64-bit - 128-bit
49. The process in which a wireless LAN clients connection moves from one access point to another is called ______
Authenticate - associate
1 - 5.5 and 11 Mbps
Ad-hoc mode - also calles Independent Basic Service Set (IBSS) - or Peer-to Peer. The client that initiated the network will randomly generate a BSSID value to use within the network.
Roaming
50. _____ can support client connections on one radio channel and the DS connection on a non-competing channel.
Number of users and software applications in use
Obstacles
Dual radio APs
Watt and mW