Is there any garbage collector concept available in iOS?

811

---

How can an operating system improve battery life while running an app in iOS operating system?

795

---

What are layer objects in iOS operating system?

830

---

What is notification in iOS?

869

---

Explain how an autorelease pool works at the runtime level in iOS

948

---

What is sandbox in iOS operating system?

961

---

What is categories in iOS?

859

---

Explain the correct way to manage Outlets memory in iOS.

801

---

What is difference between synchronous and asynchronous in web request in iOS operating system?

824

---

What are all the difference between iOS3, iOS4 and iOS5?

826

---

What is delegate pattern in iOS?

906

---

What are the App states in iOS operating system? Explain them

793

---

Define view object in iOS operating system?

789

---

Explain how the push notification works in iOS operating system?

877

---

Explain the steps involved in submitting the App to App-Store in iOS operating system?

891

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