Explain the difference between viewdidload and viewdidappear?

846

---

Explain xctest test case code.

818

---

What is a retain cycle?

770

---

What is memory management handled on ios?

819

---

Explain the difference between bounds and frame?

846

---

How you will store user info (username, password or token) securely in ios?

805

---

What is wildcard app ids?

912

---

From which ios version, arc is supported?

840

---

What are advantages of arc over mrc?

853

---

Explain application sandboxing.

791

---

Have you uploaded app on appstore? What is the process?

724

---

What is difference between unit tests and ui test in xcode?

868

---

Why do we override drawrect: method? How to explicitly call it?

775

---

Explain difference between mrc and arc?

855

---

What are layers?

836

---