Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
75 Cards in this Set
- Front
- Back
What is the typical range of transmission for a WPAN? |
10 meters |
|
is a low-power, short-range, wireless data and voice transmission technology that falls under the category of WPAN
|
Bluetooth |
|
Which is a solution to the last mile connection problem?
|
wireless ISP
|
|
Which of the following is the foundation level wireless LAN certification
|
cwna
|
|
Which of the following is a geographic location that is served by a wireless data system and provides network access to mobile users?
|
hotspot
|
|
Which technology can use a pad reader to get product code dates and other information?
|
RFID
|
|
Which of the following is NOT true about wireless data networks?
|
wireless networks are usually only found in airports and hotels
|
|
Which of the following is least likely to have a built-in wireless connection?
|
SERVER
|
|
What is a ‘last mile connection?’
|
the connection that begins at an Internet service provider, goes through the local neighborhood, and ends at the home or office
|
|
Which of the following is an organization’s internal infrastructure connection between two or more remote locations?
|
BACKHALL CONNEECTION
|
|
What type of device is used in the medical field to diagnose digestive problems without surgery?
|
VIDEO PILL
|
|
What aspect of RF may produce biological damage?
|
heating effects
|
|
Which of the following is a wireless technology that is composed of 27 earth-orbiting satellites that allow precise positioning of equipment.
|
GPS
|
|
Which of the following is a wireless network that has a coverage area from several blocks to an entire small city?
|
WMAN
|
|
WLAN speeds typically range up to which of the following
|
600 MBPS
|
|
Which of the following statements is true about the 802.11g standard?
|
speeds up to 54 Mbps and same radio frequency as 802.11b
|
|
Which of the following is a viable option for a large enterprise or campus wireless network?
|
lightweight access poin
|
|
Which is NOT a limitation of infrared wireless systems?
|
doesn’t work well indoors
|
|
Which of the following is true about infrared transmissions?
|
diffused transmission relies on reflected light
|
|
If you are installing an access point on a ceiling, but find there are no electrical outlets nearby to provide power to the AP, what technology should you deploy?
|
pce
|
|
Wireless NICs perform the same function as a wired NIC except for which of the following?
|
no RJ-45 connection
|
|
Windows Vista and Windows 7 use which software for configuring wireless NICs
|
WLAN AutoConfig
|
|
Which of the following is connected inline to each end device and adds power to the line?
|
midspan device
|
|
Which of the following is NOT a major part of an autonomous access point?
|
WIRELESS DEVICE
|
|
Which of the following provides the management and configuration functions for a thin access point?
|
wireless LAN controller
|
|
Which of the following is true of the CardBus form factor
|
has a bus mastering feature
|
|
What are the two components that make up the Windows 7 wireless Hosted Network function?
|
Virtual Wifi, SoftAP
|
|
If a remote wireless bridge is set to ____, it can only transmit to another bridge in root mode.
|
nonroot mode
|
|
Which IEEE standard added speeds of 5.5 and 11 Mbps to the WLAN standards |
802.11B
|
|
Which type of remote wireless bridge connection is used to connect multiple LAN segments, or buildings together?
|
point-to-multipoint
|
|
What units are used to measure RF power gain and loss on a relative scale?
|
db |
|
Which is caused by small objects or rough surfaces as an RF signal travels through the air?
|
scattering
|
|
____ modulation changes the number of waves representing one cycle.
|
Frequency
|
|
Which is a method of measuring RF power that can be used as a comparison between two values and gives a better picture of the loss or gain?
|
relative scale
|
|
What does a loss of 10 decibels mean with respect to the percent of power loss in mW?
|
90%
|
|
Which value can be measured by the circuitry on a wireless NIC to determine if it is clear to send its transmission?
|
rssi
|
|
Which describes the natural loss of signal strength through space?
|
free space loss
|
|
Which of the following is an electromagnetic wave?
|
all of the above
|
|
What is the term that describes the ratio of desired signal to undesired signal in the average power level of a transmission?
|
SNR
|
|
Which of the following units is used to measure frequency?
|
hertz
|
|
Power of an electromagnetic signal such as one used in WLANs is measured by which unit?
|
millwatts
|
|
What is the positive difference in amplitude between two signals?
|
gain
|
|
When an RF signal moves from one medium to another of a different density the signal actually bends instead of traveling in a straight line. This is known as ____.
|
refraction
|
|
Which type of modulation changes the starting point of the cycle to represent a change from a 1 bit to a 0 bit and vice versa?
|
P,M,
|
|
The term ____ describes the rate of electrical flow.
|
Current
|
|
Which of the following is true about wireless network operation modes?
|
a WLAN operating in ad hoc mode does not use an AP
|
|
At regular intervals the AP sends a ____ frame to both announce its presence and to provide the necessary information for other devices to join the network.
|
beacon
|
|
What is the default authentication method according to the 802.11 standard?
|
open system
|
|
Which is true about the CSMA/CD media access method?
|
e hidden node problem makes it unsuitable for wireless networks
|
|
Which of the following describes the process of a wireless device switching from one AP to another?
|
handoff
|
|
A method of roaming between APs that are separated by a router is referred to as which of the following?
|
Mobile IP
|
|
When an AP accepts or rejects a wireless device it sends a(n) ____ frame.
|
association response
|
|
In which access method does the access point serve as the polling device?
|
pcp
|
|
On ESS networks that have multiple access points, the wireless device might actually receive beacon frames from several APs. Which AP would a wireless device generally choose in this case?
|
the one with the strongest signal strength
|
|
Which of the following is true about RTS/CTS?
|
the RTS indicates the length of time needed for the transmission and ACK
|
|
What is the first step in shared key authentication?
|
wireless device sends an authentication frame to the AP
|
|
The 802.11n standard adds a feature to CSMA/CA which is necessary for A-MPDU aggregation called which of the following?
|
virtual carrier sensing
|
|
Following authentication, if the access point accepts the wireless device, it reserves memory space in the AP and establishes a(n) ____ ID for it.
|
association
|
|
Which is true of passive scanning?
|
a station listens for a beacon frame with an SSID for a set period of time
|
|
____ effectively prevents collisions because every device must wait until it receives permission before it can transmit.
|
polling
|
|
Which network area are you likely to find LAN routers and Layer 3 switches?
|
WORKGROUP
|
|
Which power management technology is designed to be used with MIMO devices?
|
SMPS
|
|
Which technology works by inserting a tag header within the existing Ethernet packet?
|
802.1g trucking
|
|
Which of the following are NOT enhanced power management technologies?
|
CONTINOUS
|
|
Which is NOT an advantage of single channel architecture?
|
AP COVERAGE DOES NOT OVERLAP
|
|
In an 802.11b network, which channels are nonoverlapping?
|
1,6,11
|
|
Which type of wireless network uses the ATIM window?
|
IBSS
|
|
Which is true of a wireless mesh network?
|
only one AP must be connected to the wired network
|
|
Which system allows APs and other network equipment to be connected through the Internet and managed from one central location?
|
CLOUD Management
|
|
Which wired device is a WLC most similar to?
|
managed switch
|
|
What happens when an AP sends a DTIM?
|
all stations change to active mode
|
|
A distributed WLAN architecture can be described as which of the following?
|
an ESS that uses multiple autonomous access points
|
|
What should you deploy if you manage a public hotspot and want users to agree to a policy or present credentials before using the WLAN?
|
captive portal AP
|
|
Which of the following is true of wireless VLANs in which the AP is responsible for separating packets for the correct VLAN?
|
different VLANs are transmitted by the AP on different SSIDs
|
|
The capability to prioritize different types of frames is known as which of the following?
|
quality of service
|