Is there any garbage collector concept available in iOS?

860

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

850

---

What are layer objects in iOS operating system?

880

---

What is notification in iOS?

920

---

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

985

---

What is sandbox in iOS operating system?

1001

---

What is categories in iOS?

917

---

Explain the correct way to manage Outlets memory in iOS.

837

---

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

875

---

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

884

---

What is delegate pattern in iOS?

962

---

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

839

---

Define view object in iOS operating system?

836

---

Explain how the push notification works in iOS operating system?

940

---

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

933

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