Operating Systems Basics – 3.5.2 Quiz – Mobile Device Connectivity
1. An analyst wants to pay for a product just by tapping a smartphone on a sensor. What technology, product, or setting allows this task to be accomplished?
- NFC
- MIME
- Mobile hotspot
- IDS
Explanation: Near field communication (NFC) allows short range communications between devices such as mobile phones and payment terminals. It is similar to RFID but has an extremely limited range useful for transferring sensitive information.
2. Which technology provides laptops the ability to function on a cellular network?
- Mobile hotspot
- Bluetooth
- Infrared
- 802.11 Wi-Fi
Explanation: Mobile hotspots allow a laptop to connect to a cellular network and gain WAN access. Bluetooth and infrared wireless work for short distances. 802.11 Wi-Fi technology provides laptops with access to a local network.
3. Which wireless technology can be used to connect wireless headphones to a computer?
- NFC
- Bluetooth
- Wi-Fi
- 4G-LTE
Explanation: Bluetooth is a low-power, short range wireless technology that provides connectivity for accessories such as speakers, headphones, and microphones.
4. A traveling sales representative uses a cell phone to interact with the home office and customers, track samples, make sales calls, log mileage, and upload/download data while at a hotel. Which internet connectivity method would be a preferred method to use on the mobile device due to the low cost?
- Cellular
- DSL
- Cable
- Wi-Fi
- Z-Wave
Explanation: Mobile devices typically use either the cellular network or a Wi-Fi network to connect to the internet. The Wi-Fi connection is preferred because it uses less battery power and is free in many places.
5. A technician is configuring a device and the device shows that it is pairing. Which mobile technology is being used?
- Wi-Fi
- Zigbee
- Bluetooth
- Tethering
Explanation: In order to configure two Bluetooth devices, the devices must connect to one another by pairing with one another. This may require a PIN or passkey as part of the process.
6. A technician follows the instruction manual that came with a new Bluetooth speaker to place the speaker in discoverable mode. In this mode, what type of information will the speaker transmit to the laptop in order to start the pairing process?
- device name and Bluetooth capabilities
- username and telephone number
- bluetooth PIN and device ID
- protocol and radio frequency settings
Explanation: When a Bluetooth device is in discoverable mode, it transmits Bluetooth and device information such as device name, services that the device can use, and Bluetooth class. To prevent a Bluetooth device from being discovered unintentionally, only turn on Bluetooth capabilities when they are needed.
7. What are two methods typically used on a mobile device to provide internet connectivity? (Choose two.)
- Cellular
- Zigbee
- Wi-Fi
- Z-Wave
- GPS
Explanation: Mobile devices commonly use Wi-Fi and cellular to connect to the internet. The cellular connection uses the cellular data network for a fee. The Wi-Fi connection uses an 802.11 wireless network in the area to connect to the internet.
8. Which two methods are used to directly connect mobile devices such as tablets and smartphones to a data network? (Choose two.)
- WiMax
- Cellular communications
- Bluetooth
- Wired Ethernet
- Wi-Fi
Explanation: Mobile devices connect wirelessly to data networks using either Wi-Fi or a telecommunication provider cellular network. Bluetooth is used to connect to peripherals or other local devices over very short distances. Ethernet is a wired network access technology and is not used by mobile devices. Mobile devices do not typically implement WiMAX technology.
9. Which app is used to synchronize data to an iOS-based mobile device?
- iTunes
- Auto Sync
- MIME
- SMTP
Explanation: iOS devices can synchronize apps, music, video or books using the iTunes app.
10. What device setting is used to share the cellular WAN connection of a phone in order to allow other devices to connect to the Internet?
- Mobile hotspot
- Airplane mode
- Wake on LAN
- Wi-Fi
Explanation: The mobile hotspot setting is used to share an Internet connection on a mobile phone with other devices.
11. Which email protocol used by mobile devices allows pictures and documents to be included in email messages?
- IMAP
- POP3
- SMTP
- MIME
Explanation: The IMAP protocol allows email data to be synchronized between a client and server. Changes made in one location, such as marking an email as read, are automatically applied to the other location. POP3 is also an email protocol. However, the data is not synchronized between the client and the server. SMTP is used for sending email, and is typically used in conjunction with the POP3 protocol. MIME is an email standard that is used to define attachment types, and allows extra content like pictures and documents to be attached to email messages.
12. A technician working on a cell phone must provide documentation regarding the phone. Where would the technician find the IMSI information?
- on the phone information label
- on the SIM card or programmed on the phone
- under the battery
- within phone contacts
Explanation: The international mobile subscriber identity (IMSI) number is a unique mobile device number that is commonly programmed on the subscriber identity module (SIM) card or can be programmed on the phone by some service providers.
13. Which protocol can be used to transfer messages from an email server to an email client?
- SMTP
- POP3
- SNMP
- HTTP
Explanation: SMTP is used to send mail from the client to the server but POP3 is used to download mail from the server to the client. HTTP and SNMP are protocols that are unrelated to email.
14. What are two methods of disabling cellular data when located in an area where it is limited or expensive? (Choose two.)
- using Settings to turn off mobile data
- placing the device in Airplane mode
- turning on a personal hotspot
- using a secure VPN connection
- enabling Bluetooth for data connections
Explanation: Mobile data can be turned off using the Settings options on both Android and Apple phones. Airplane mode turns off all cellular, WiFi, and Bluetooth capabilities. Once airplane mode has been turned on, Wi-Fi, Bluetooth, and other wireless functionality can be turned back on except for cellular.
15. A technician is configuring email on a mobile device. The user wants to be able to keep the original email on the server, organize it into folders, and synchronize the folders between the mobile device and the server. Which email protocol should the technician use?
- POP3
- IMAP
- MIME
- SMTP
Explanation: The IMAP protocol allows email data to be synchronized between a client and server. Changes made in one location, such as marking an email as read, are automatically applied to the other location. POP3 is also an email protocol. However, the data is not synchronized between the client and the server. SMTP is used for sending email, and is typically used in conjunction with the POP3 protocol. MIME is an email standard that is used to define attachment types, and allows extra content like pictures and documents to be attached to email messages.