What will be the return value of CFHTTPMessageApplyCredentials
function of CFHTTPMessage class if the authentication is
successful?

Consider the following code with 2 alternatives of vector operator for OpenGL ES: highp float f0,f1; highp vec4 v0, v1; Alternative 1: v0 = (v1*f0)*f1; Alternative 2: v0 = v1 * (f0 * f1); Which alternative demonstrates proper use of vector operations?

When you send an object a retain message in Memory Management using Objective-C, what will happen?

Which OpenGL ES objects is a simple 2D graphics image in a specified format?

While opening Nib files, which of the following should not be ignored?

Which methods is used for the purpose of creating your view objects in memory management?

Which is not a valid UIGestureRecognizer?

Correct way to print out stack/trace to the console/log in Cocoa application?

Which will return the device's current location?

Which is not a valid Touch method with respect to Cocoa Touch programming?

How can it be detected if the app is running on an iPhone 5?