Good news for me that I passed this exam by the Grace Of All Mighty Allah and am still waiting for certificate and mark sheet.
The paper was too hard and lengthy. There were 150 questions with 3 hours and 15 minutes to answer. The test is horribly tiresome and cumbersome. After 30 questions my head was already hurting. After 80 questions it was even difficult to read correctly the questions due to tiredness. That day I realized that continuous sitting in front of the computer with concentration can destroy a man. In the last 20 or 30 questions I was really fed up and the words appeared to dance in the front of my eyes.
For preparing this exam I recommend a few links below which helped me in my preparation for this exam.
http://www.ws-i.org/Profiles/BasicProfile-1.1.html (Specially concentrate on WS-I Basic Profile)