Introduction to Android
1 Introduction
Q1. Which of the following is a key technlogy for implementing Android apps?
a. Android Studio IDE (Integrated Development Environment),
b. Java
c. Android SDK (Software Development Kit)
d. All of the above.
Answer: d. All of the above.
1 Android—The World’s Leading Mobile
Operating System
No questions.
1 Android Features
Q1. One benefit of developing Android apps is the openness of the platform. The
operating system is and free. This allows you to view Android’s source
code and see how its features are implemented.
a. proprietary
b. closed source
c. open source
d. None of the above.
Answer: c. open source.
Q2. Unlike Apple’s iOS, which is available only on Apple devices,
Android is available on devices from dozens of original equipment manufacturers
(OEMs) and through numerous telecommunications carriers worldwide.
a. open source
b. proprietary
c. universal access
d. None of the above.
Answer: b. proprietary
Q3. Which of the following statements is true?
a. Android apps are developed with Java—one of the world’s most widely used
programming languages.
b. Java was a logical choice for the Android platform, because it’s powerful, free,
open source and used by millions of developers.
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,c. Experienced #awJava #awprogrammers #awcan #awquickly #awdive #awinto #awAndroid
#awdevelopment, #awusing #awGoogle’s #awAndroid #awAPIs #aw(Application #awProgramming
#awInterfaces) #awand #awothers #awavailable #awfrom #awthird #awparties.
d. All #awof #awthe #awabove.
Answer: #awd. #awAll #awof #awthe #awabove.
Q4. # a w GUI # a w programming #awin #awJava # a w is #aw #aw—in # a w this # a w book, # a w you’ll
# a w write # a w apps # a w that #awrespond #awto #awvarious #awuser-initiated #awevents #awsuch #awas
#awscreen #awtouches.
a. user #awdriven
b. programmer #awdriven
c. IDE #awdriven
d. event #awdriven.
Answer: #awd. #awevent #awdriven.
Q5. #awIn #awaddition #awto #awdirectly #awprogramming #awportions #awof #awyour #awapps,
#awyou’ll #awalso #awuse #awthe #awAndroid # a w Studio # a w IDE # a w to # a w conveniently # a w
#awpredefined #awobjects #awsuch #awas
#awbuttons #awand #awtextboxes #awinto #awplace #awon #awyour #awscreen, #awand #awlabel #awand
#awresize #awthem.
a. drag #awand #awdrop
b. point #awand #awclick
c. copy #awand #awpaste
d. None #awof #awthe #awabove.
Answer: #awa. #awdrag #awand #awdrop.
Q6: #awThe #awmultitouch #awscreens #awallow #awyou #awto #awcontrol #awthe #awdevice #awwith #aw
involving
#awone #awtouch #awor #awmultiple #awsimultaneous #awtouches.
a. actions.
b. gestures.
c. gesticulations.
d. None #awof #awthe #awabove.
Answer: #awb. #awgestures.
Q7. #awWhich #awgesture #awis #awused #awto #awflip #awitem-by-item #awthrough #awa #awseries, #awsuch #awas
#awphotos?
a. drag.
b. long #awpress.
c. pinch #awzoom.
d. swipe.
Answer: # a w # a w d. #awswipe.
Q8. #aw are #awsoftware #awcomponents #awstored #awon #awone #awcomputer #awthat
#awcan #awbe #awaccessed #awby #awan #awapp #aw(or #awother #awsoftware #awcomponent) #awon
#awanother #awcomputer #awover #awthe #awInternet.
a. GUIs
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,b. Web #awservices.
c. Classes.
d. None #awof #awthe #awabove.
Answer: #awb. #awWeb #awservices.
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, Q9. # a w With # a w web # a w services, # a w you # a w can # a w create # a w , #awwhich
#awenable #awyou #awto #awrapidly #awdevelop #awapps #awby #awquickly #awcombining
#awcomplementary #awweb #awservices, #awoften #awfrom #awdifferent #aworganizations #awand
#awpossibly #awother #awforms #awof #awinformation #awfeeds.
a. smashups
b. match #awups.
c. mashups.
d. None #awof #awthe #awabove.
Answer: #awc. #awmashups.
1 Android Operating System
#aw #aw
Q1. # a w In #aw2007, # a w the #aw #awwas #awformed #awto #awdevelop, #awmaintain #awand #awevolve
#awAndroid, #awdriving #awinnovation #awin #awmobile #awtechnology #awand #awimproving #awthe
#awuser #awexperience #awwhile #awreducing #awcosts.
a. Open #awHandset #awAlliance.
b. Open #awPhone #awAlliance.
c. Open #awSoftware #awFoundation.
d. Open #awSoftware #awAlliance.
Answer: #awa. #awOpen #awHandset #awAlliance.
1 Android #aw2.2 #aw(Froyo)
Q1. # a w #awallows # a w you # a w to # a w use # a w software # a w and # a w data # a w stored
# a w in # a w the # a w “cloud”—i.e., #awaccessed #a w on #aw remote #a w computers #a w (or
#a w servers) #a w via #a w the #a w Internet #a w and #a w available #a w on #a w demand
—rather #awthan #awhaving #awit #awstored #awon #awyour #awdesktop, #awnotebook #awcomputer #awor
#awmobile #awdevice.
a. Desktop #awcomputing.
b. Sky #awcomputing.
c. Cloud #awcomputing.
d. None #awof #awthe #awabove.
Answer: #awc. #awCloud #awcomputing.
1 Android #aw2.3 #aw(Gingerbread)
Q1. # a w One # a w of # a w the # a w most # a w significant # a w new # a w features # a w in
# a w Android # a w 2.3 # a w was # a w support # a w for
#aw—a #awshort-range #awwireless #awconnectivity #awstandard #awthat #awenables
#awcommunication #awbetween #awtwo #awdevices #awwithin #awa #awfew #awcentimeters. #awIt
#awcan #awbe #awused #awfor #awpayments #aw(for #awexample, #awtouching #awyour #awAndroid
#awdevice #awto #awa #awpayment #awdevice #awon #awa #awsoda #awmachine), #awexchanging #awdata
#awsuch #awas #awcontacts #awand #awpictures, #awpairing #awdevices #awand #awaccessories #awand
#awmore.
a. WiFi.
b. Bluetooth.
c. near-field #awcoomunication #aw(NFC).
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