MetricStream sept 20th 2016

Can anyone tell me few questions or tips to ■■■■■ written test of Metric stream company?

In HTML, (i)Difference between HTML and Xhtml (ii)question based on iframe (iii)question based on indent/padding.
In C, Mainly on loops. like for(i++;i++;i++)
In java, Mainly based on Function.
15 C MCQ , 15 Java MCQ , 5 HTML MCQ