SophiaPretty

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About SophiaPretty

Levels Tought:
Elementary,Middle School,High School,College,University,PHD

Expertise:
Accounting,Algebra See all
Accounting,Algebra,Applied Sciences,Architecture and Design,Art & Design,Biology,Business & Finance,Calculus,Chemistry,Communications,Computer Science,Economics,Engineering,English,Environmental science,Essay writing Hide all
Teaching Since: Jul 2017
Last Sign in: 304 Weeks Ago, 1 Day Ago
Questions Answered: 15833
Tutorials Posted: 15827

Education

  • MBA,PHD, Juris Doctor
    Strayer,Devery,Harvard University
    Mar-1995 - Mar-2002

Experience

  • Manager Planning
    WalMart
    Mar-2001 - Feb-2009

Category > Computer Science Posted 09 Dec 2017 My Price 8.00

Complete attached summary review questions and submit

Assignment Instructions

Instructions: Complete attached summary review questions and submit as an attachment.

Chapter 21

1. Which of the following is not an operating system commonly found

on mobile devices?

A. Android

B. UNIX

C. iOS

D. Windows

 

2. What can be done with open-source software that cannot be done

with closed-source software?

A. The code can be changed.

B. It can be installed by the user.

C. It can be updated by the user.

D. It can be downloaded from the Internet.

 

3. Where can you find applications for both Android and iOS devices?

A. From websites run by the app developers

B. From sources designed for the operating systems

C. On discs purchased from retail outlets

D. From the device’s manufacturer

 

4. Why do mobile devices use accelerometers and gyroscopes?

A. For geographic positioning

B. To replace magnetometer

C. For screen orientation

D. For more accurate caller ID

 

5. What is the purpose of a magnetometer in a mobile device?

A. To make the image on the screen turn sideways when the

device is oriented that way

B. To orient the device using the earth’s magnetic field

C. To allow in proximity charging

D. To enable near field communication (NFC)

 

6. What port number does SMTP with SSL use?

A. 995

B. 993

C. 587

D. 465

 

7. What is the most reliable way to reduce the cost of connecting to the

Internet on a mobile device?

A. Turn off cellular data and connect to a Wi-Fi network

B. Use a disposable phone

C. Prepay for Internet time

D. Change mobile carriers before your contract expires

 

8. Which of the following is not a common use for Bluetooth?

A. To share data between devices

B. To connect a mobile device to a sound system

C. To replace Wi-Fi

D. To connect a headset to a mobile device

 

9. Which of the following mail protocols is more likely than other mail

protocols to use the same TCP port number when secure as it does

when not secure?

A. IMAP4

B. POP3

C. Web client

D. SMTP

Answer: D

 

10. What term is used to refer to a mobile device’s mirroring of data

with a conventional computer?

A. Duplication

B. Backing up

C. Duplexing

D. Synchronization

Answers

SophiaPretty
(5)
Status NEW Posted 09 Dec 2017 06:12 AM My Price 8.00

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