iPhone / iPad / iOS Interview questions Part 1

Recently, I’ve gone through several interview rounds. I would like to share my experience. Here, I’m not going to put the exact questions. Those will be part of the next posts in this series. Initially, I would like to start with the preparation work which I did. This series will cover most of the technical questions and answers on iOS App Development.

Let us start with some very basic questions.

1. Q: iPhones launched by Apple
   A: iPhone2, iPhone3G, iPhone3Gs, iPhone4, iPhone4S, iPhone5, iPhone5S, iPhone5C, iPhone6, iPhone6+
2. Q: iPads launched by Apple
   A: iPad, iPad2, iPad3, iPad4, iPad Air, iPad Mini, iPad Mini2
3. Q: Most Recent Mac Operating Systems
   A: OS X Tiger, Leopard, Snow Leopard, Lion, Mountain Lion, Mavericks, Yosemite 10.10
4. Q: Most Recent XCode Version
   A: XCode 6.0.1 (Check updated version before preparing answer)
5. Q: Most Recent iTunes Version
   A: iTunes 12.0.0 (Check updated version before preparing answer)
6. Q: Most Recent Safari Version on OS X
   A: Safari 8.0 on Yosemite (Check updated version before preparing answer)
7. Q: Most Recent iOS Version
   A: iOS 8.0.2 and iOS 8.1 Beta
8. iPhone Screen Sizes
   1. Q: iPhone4 Screen Size
      A: 320 px X 480 px, 3.5 inches
   2. Q: iPhone4S Screen Size
      A: 640 px X 960 px, 3.5 inches
   3. Q: iPhone 5S Screen Size
      A: 640 px X 1136 px, 4 inches
   4. Q: iPhone 6 Screen Size
      A: 750 px X 1334 px, 4.7 inches
   5. Q: iPhone 6+ Screen Size
      A: 1080 px X 1920 px, 5.5 inches
9. iPad Screen Sizes
   1. Q: iPad 1
      A: 768 px X 1024 px, 9.7 inches
   2. Q: iPad 2
      A: 768 px X 1024 px, 9.7 inches
   3. Q: iPad 3
      A: 1536 px X 2048 px, 9.7 inches
   4. Q: iPad 4
      A: 1536 px X 2048 px, 9.7 inches
   5. Q: iPad Air
      A: 1536 px X 2048 px, 9.7 inches
   6. Q: iPad Mini
      A: 768 px X 1024 px, 7.9 inches
   7. Q: iPad Mini 2
      A: 1536 px X 2048 px, 7.9 inches
10. Q: Latest iOS8 Supported iPhones
    A: iPhone4S, iPhone5, iPhone5S, iPhone5C, iPhone6, iPhone6+
11. Q: Latest iOS8 Supported iPads
    A: iPad2, iPad3, iPad4, iPad Air, iPadMini, iPadMini2
12. Q: Devices that include Apple A8 Processor
    A: iPhone6, iPhone6+
13. Q: Devices that include Apple A7 Processor
    A: iPad Air, iPhone5S, iPadMini2
14. Q: New features of iOS8 as End User
    1. Improved Photos App
    2. Messages with Audio, Video & location sharing
    3. Contacts on Multitasking App choosing screen
    4. Notifications with Actions
    5. Smart Keyboard with suggested answer
    6. Family sharing – up to 6 members – iBooks, iTunes, AppStore. Also photos, calender, locations & many others
    7. iCloud – documents & data sharing across all devices
    8. HealthKit
       1. Activity tracker
       2. Heart rate monitor
       3. Other health & fitness related app can talk to each other
    9. Hand Off – Resume your apps from device to Mac & mac to device
    10. Spot light search
15. Q: New features of iOS8 as Developer
    A: New features are as follows
    1. App Extentions => Share, Action, Today, Photo Editing, Storage Editor, Custom Keyboard
    2. Touch ID Authentication
    3. PassKit
    4. Photos => Photos Framework, Manual Camera Control, Improved Camera Functionality
    5. Games => Metal, SceneKit, SpriteKit, AV Audio Engine, Open GL ES
    6. HealthKit
    7. HomeKit
    8. iCloud
    9. Handoff
    10. Size Class

Well, That’s it for the first part of iOS Interview Questions. Keep posted to get updates on the same. All the best.