Apple iOS Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Apple iOS Interview Questions

Questions Answers Views Company eMail

Explain the difference between stack and heap memory?

798

Explain the difference between strong and retain.

766

In which language ios is written?

825

What are ios functions?

792

What coding language is used for ios apps?

766

What does ios stand for in texting?

861

What is gcd ios?

895

What is gcd in ios swift?

846

What is ios selector?

820

What is a memory leak in ios?

782

What is array in ios?

786

What is block in ios swift?

911

What is block in ios?

806

What is callback in ios?

805

What is category and extension in ios?

792

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Un-Answered Questions { Apple iOS }

What is delegate?

907

What is ios viewdidload?

816

How do you fix app errors on iphone?

830

What is nsmanagedobjectcontext? What are the different concurrency types? Explain them.

763

What is singleton pattern in ios?

782

Name the app sate which it reaches briefly on its way to being suspended in iOS operating system?

876

Explain me what is fast enumeration?

880

How to shut off message alerts in ios?

968

What is thread safe?

791

Explain retain counts in iOS operating system?

919

What is meaning of 'nonatomic' keyword?

925

What are lifecycle events of uiviewcontroller?

754

How is retain different from assign?

784

What is the latest version of ios?

838

Explain parent-child context setup. What are the advantages?

781

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