Hi Natarajan,
On the
test I took the font looked to be Courier 10 and the screen was 800x600. I'm not sure if the test itself enforces this or if different testing centers define their own setups.
If the text appears to small on the first screen, before you actually start the exam, you might want to talk to the administrators.
Hope that helps.
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Jane Griscti
Sun Certified
Java 2 Programmer