Lesson 10 Flashcards
How do signals travel between a GPS satellite and an on-the-ground GPS receiver?
- Only from the satellite to the receiver
- From the satellite to the receiver and back, but through a ground station
- From the satellite to the receiver and back
- From the satellite to a ground station and then from the ground station to the receiver
- Only from the receiver to the satellite
Only from the satellite to the receiver
A device that you can use to make and receive calls using a wireless connection and also contain some of the functionality of a computer is called a _____.
- Tablet
- Cellular phone
- Smartphone
- Handheld computer
- Mobile phone
Smartphone
**What is(are) the principal difference(s) between a smartphone and a tablet?
a) screen size
b) ability to make and receive video calls
c) use of touchscreen technology
d) processing speed**
- a and b
- a only
- b and c
- c only
- a, b, c and d
screen size
Which of the following is NOT a difference between regular mobile phones and satellite phones?
- Number of service providers
- Cost of hardware and service
- Two-way wireless communication
- The geographic area where you can pick up a signal
- Type and size of the antenna
Two-way wireless communication
In the context of wireless computing devices, the term PDA stands for _____ _____ _____ ?
- Progressive Digital Analog
- Personal Digital Assistant
- Personal Database Assistant
- Personal Digital Aid
- Progressive Device Analog
Personal Digital Assistant
Which of the following wireless communication technologies does not travel through walls and needs line-of-sight to communicate?
- Infrared
- Bluetooth
- Zigbee
- Ultra-wide band
Infrared
What is the approximate distance between devices when establishing a connection using short-range wireless communication?
- 3 to 5 meters
- From a few centimeters to
- approximately 1 kilometer
- 1 to 100 meters
- From a few centimeters to several meters
From a few centimeters to several meters
Which of the following wireless communication technologies has the shortest range?
- WiFi
- Zigbee
- Bluetooth
- Near Field Communication
Near Field Communication
Which of the following is not a typical application of Bluetooth wireless communication?
- Connecting several devices to the wireless Internet.
- Wireless headset for a mobile phone
- Wireless connection between a computer and peripheral devices (e.g mouse, keyboard, camera, printer)
- Hands-free calling by connecting a mobile phone to a car’s stereo system
Connecting several devices to the wireless Internet.
Relative to other technologies such as Bluetooth, WiFi and cellular, Zigbee provides wireless communication that provides _____.
- Lower cost and longer battery life
- Longer range and lower cost
- Lower cost
- Longer battery life
Lower cost and longer battery life
A single Wi-Fi Access Point can cover a geographic area as large as a(n) _____.
College campus
House
Apartment building
Metropolitan area
House
A hardware device that has a built-in network adapter, antenna and radio for Wi-Fi is a(n) _____.
Access Point
Wi-Fi zone
Wireless card
Hotspot
Access Point
Which of the following is NOT a standard Wi-Fi communications standard?
802.11n
802.11g
802.11ac
802.11x
802.11x
Which of the following best describes the connection tool for a new smartphone that can connect to Wi-Fi?
Hotspot
Wireless card
Integrated Wi-Fi
Access Point
Integrated Wi-Fi
What type of coverage does Wi-Fi provide?
Medium range wired communication
Small range wired communication
Medium range wireless communication
Broadband wired communication
Medium range wireless communication
Which of the following technologies use microwaves?
Infrared
Cellular
FM Radio
None of these use microwaves
Cellular
Which of the following wireless technologies would fit under the WAN category?
WiMAX
Cellular
Bluetooth
Home router
Cellular
How do signals travel between a GPS satellite and an on-the-ground GPS receiver?
Only from the satellite to the receiver
From the satellite to the receiver and back
From the satellite to a ground station and then from the ground station to the receiver
From the satellite to the receiver and back, but through a ground station
Only from the satellite to the receiver
Select the most appropriate option: Wireless communication uses _____ to transmit a signal.
Microwave
Electromagnetic waves
Fiber
Wi-Max
Electromagnetic waves
Which of the following is a feature of 5G?
Multiple device support
Dead zones
Satellite uplink
Latency
Multiple device support
Which of the following are valid configurations of a Wireless Access Point?
IP address, NAT
MAC address, NAT, Firewall
Firewall alone
IP address, NAT and Firewall
IP address, NAT and Firewall
I. An Ethernet card is necessary for a wireless connectivity through a Wireless Access Point.
II. The devices that are connected using a Wireless Access Point communicate using radio signals or Infrared waves.
Which of the following is true with respect to above statements?
Both I and II are false.
Both I and II are true.
Only I is true.
Only II is true.
Only II is true.
Although security is important, why is there a need to use Wireless Access Point as a pass-through set-up which allows any server to get connected to the network?
To enable the peer devices to exchange data without much difficulty.
To avoid unknown users getting connected to the network.
To enhance fast server access.
To block firewall.
To enable the peer devices to exchange data without much difficulty.
Which of the following is/are true?
Wireless Access Points connect devices that have WI-FI or Bluetooth connectivity.
Wireless Access points connect two different wired networks.
Wireless Access Points cannot be standalone.
Wireless Access Points are often referred to as WI-MAX.
Wireless Access Points connect devices that have WI-FI or Bluetooth connectivity.
The wireless access points have a _____ that help share connections
bridge
switch
hub
cable
switch
The protocol with the highest bandwidth capability is _____:
802.11b
802.11ac
802.11a
802.11n
802.11ac
The 802.11n Protocol makes use of _____ technology:
Multiple Input/Multiple Output (MIMO)
Dual-band wireless
Carrier Sense Multiple Access with Collision avoidance (CSMA/CA)
Orthogonal Frequency-Division Multiplexing (OFDM)
Multiple Input/Multiple Output (MIMO)
Which two protocols are NOT backward compatible?
802.11g and 802.11b
802.11g and 802.11ac
802.11a and 802.11ac
802.11a and 802.11b
802.11a and 802.11b,
What are WLAN Protocols?
WLAN Protocols are 802.11n/g protocols which control the obstruction and interference over a Wide Area Network (WAN).
WLAN Protocols are network protocols which govern data transmissions over wireless connectivity.
WLAN Protocols are 802.11 protocols which control the speed and frequency coverage over a Wide Area Network (WAN).
WLAN Protocols are network protocols which govern data transmissions over wide area connectivity.
WLAN Protocols are network protocols which govern data transmissions over wireless connectivity.
The two main operational differences between the 802.11a protocol and the 802.11b protocol are:
802.11a protocol operates at 54Mbps within a 5GHz frequency range while 802.11b operates at 11Mbps within a 2.4GHz frequency range
802.11a protocol uses CSMA/CA at 11Mbps while 802.11b protocol uses (OFDM) at 11Mbps
802.11b protocol operates at 54Mbps within a 5GHz frequency range while 802.11a operates at 11Mbps within a 2.4GHz frequency range
802.11a protocol uses CSMA/CA at 1300Mbps while 802.11b protocol uses (OFDM) at 300Mbps
802.11a protocol operates at 54Mbps within a 5GHz frequency range while 802.11b operates at 11Mbps within a 2.4GHz frequency range
