Wireless Chapter 6 Quiz

802.11b is capable of which of the following data rates? (Choose three.) A) 1 Mbps B) 5.5 Mbps C) 6 Mbps D) 11 Mbps E) 12 Mbps

A) 1 Mbps B) 5.5 Mbps D) 11 Mbps

A service set identifier (SSID) has a maximum limit of how many characters or octets? A) 32 B) 128 C) 16 D) 8

A) 32

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 optimize the system performance. The notebook computer is plugged into an AC power source and rarely used on battery. Which mode would you recommend her to set on the wireless adapter? A) Active mode B) Passive mode C) Association mode D) Power save mode

A) Active mode

In order for a wireless client to become completely part of the basic service set, it must first _____ and then _____. A) Authenticate, associate B) Deauthenticate, authenticate C) Disassociate, authenticate D) Associate, authenticate

A) Authenticate, associate

In order to set up an ad hoc network, a user must know which two parameters? (Choose two.) A) Channel B) BSSID C) SSID D) Protection mode E) MAC address

A) Channel C) SSID

A beacon frame advertises information about the wireless network. A beacon frame is what type of frame? A) Management B) Control C) Detail D) Data

A) Management

When an RF signal bounces off a smooth, nonabsorptive surface, the behavior is A) Reflection B) Refraction C) Scattering D) Diffraction

A) Reflection

A basic server set identifier (BSSID) is the unique identifying MAC address of the _____. A) AP radio B) AP Ethernet port C) Router D) Client

A) AP radio

The IEEE 802.11 association process happens after which phase? A) Authentication B) Distribution C) Deauthentication D) Reauthentication

A) Authentication

WLAN controllers may contain which of the following features? (Choose three.) A) Centralized administration B) Captive portal C) Network Address Translation (NAT) D) Built-in RADIUS services E) IP routing

A) Centralized administration B) Captive portal D) Built-in RADIUS services

A controller-managed access point connected to a port on the WLAN controller and not to an intermediate device is considered to have which of the following? A) Direct connectivity B) Distributed connectivity C) Decentralized connectivity D) Centralized connectivity

A) Direct connectivity

As seen in a two-dimensional (X/Y) view, the amplitude of an RF signal is: A) Height B) Length C) Shift D) Width

A) Height

According to the IEEE 802.11 standard, an extended service set (ESS) consists of how many interconnected basic service sets? A) One or more B) Two or more C) Three or more D) Four or more

A) One or more

Which of the following is an accurate description of peer communication? A) The horizontal link between devices on the network B) The vertical link between devices on the network C) The logical link between devices on the network D) The physical link between devices on the network

A) The horizontal link between devices on the network

An independent basic server set (IBSS) consists of how many access points? A) 2 B) 0 C) 4 D) 1

B) 0

You are a sales engineer connected to an IEEE 802.11ac 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 which term? A) Transmit power control B) Dynamic rate switching C) Dynamic frequency selection D) Transmit save mode

B) Dynamic rate switching

An azimuth chart shows which RF radiation pattern? A) Positive B) Horizontal C) Negative D) Vertical

B) Horizontal

When an IEEE 802.11g WLAN consists only of wireless client stations, the network is operating as which type of basic service set? A) Active B) Independent C) Infrastructure D) Passive

B) Independent

A patch antenna is an example of which type of antenna? A) Dipole-directional B) Semidirectional C) Highly directional D) Omnidirectional

B) Semidirectional

A basic service set (BSS) consists of how many access points? A) Zero B) At least one C) At least two D) At least four

B) At least one

Wireless bridges must be configured with _____ and _____ (Choose two.) A) A null SSID B) The same SSID C) The same RF channel D) Channel scanning E) Wired Equivalent Privacy

B) The same SSID C) The same RF channel

Point-to-multipoint links consist of _____ or more connections. A) Two B) Three C) Four D) Five

B) Three

An 802.11b channel is how wide in MHz? A) 5 MHz B) 30 MHz C) 22 MHz D) 25 MHz

C) 22 MHz

A point-to-point wireless link requires what percent of the Fresnel zone to be clear in order to be considered to have an acceptable RF line of sight? A) 40 B) 20 C) 60 D) 0

C) 60

The curvature of the earth will have an impact on the WLAN signal after how many miles? A) 2 B) 10 C) 7 D) 25

C) 7

WLAN devices in an 802.11a peer-to-peer network will connect to which device(s)? A) An access point B) 802.11g client devices C) 802.11a client devices D) A wireless switch

C) 802.11a client devices

As a device moves away from an access point, which of the following is true regarding dynamic rate switching? A) Output power increases B) Data rate increases C) Data rate decreases D) Output power decreases

C) Data rate decreases

Which items describe a service set identifier (SSID)? (Choose two.) A) 64 characters maximum B) Is not case sensitive C) Is case sensitive D) 32 characters maximum

C) Is case sensitive D) 32 characters maximum

You are a technical support engineer and receive a call from a customer regarding a problem with their wireless network connection. The building has an ESS network with five 802.11ac access points. The customer claims that when they move from their office to a conference room using the 802.11ac network they lose their connection and cannot connect to the access point in the conference room. Which is most likely cause for this user to lose their connection when they roam on the wireless network? A) Different BSSID B) Mismatched association C) Mismatched SSID D) Different RF channel

C) Mismatched SSID

The process in which a WLAN client connection moves from one access point to another is called _____. A) Reauthentication B) Rebuilding C) Roaming D) Roving

C) Roaming

What is the gain of an antenna measured in? A) dBc B) dB C) dBi D) dBm

C) dBi

A self-contained intelligent access point is _____ A) Controller-managed B) Heavyweight C) Autonomous D) Thin

C) Autonomous

You are a help desk support technician at a retail department store, and you receive a call from a manager in the administrative offices. He complains that the performance of his 802.11g/n notebook computer decreases several times throughout the day. Upon visiting the customer, you realize several people are performing inventory using 802.11b barcode scanners in the adjacent room. What is most likely the cause of the poor performance for the manager's notebook computer? A) Association B) Authentication C) ERP protection D) HT protection

C) ERP protection

Which access point mode involves connecting the access point to a distribution system for user access to the LAN? A) Bridge-only mode B) Repeater-only mode C) Root access point mode D) Access mode

C) Root access point mode

Wireless network cables and devices have impedance (AC resistance) of _____ ohms. A) 75 B) 10 C) 25 D) 50

D) 50

When RF passes or bends around an obstacle such as a building or column, the behavior is: A) Refraction B) Reflection C) Scattering D) Diffraction

D) Diffraction

When a WLAN device listens for beacon frames, it is participating in which phase? A) Authentication B) Active scanning C) Power save D) Passive scanning

D) Passive scanning

The lower three layers of the OSI model are the________,________and the________. A) Data Link, Physical, Transport B) Session, Physical, Application C) Application, Presentation, Session D) Physical, Data Link, Network

D) Physical, Data Link, Network

The open system authentication process uses how many frames? A) One B) Four C) Three D) Two

D) Two

The term encapsulation means to________ A) Add an IP address to a network adapter B) Add a MAC address to a network adapter C) Add topology information to a frame D) Add layer header and trailer information to a frame

D) Add layer header and trailer information to a fr