Practice Quiz Links

Here are some websites that have practice quizzes for the ISTQB certification exam.
Most of these have full practice tests meant to simulate the number of tests on the real test.  There are supposed to be 40 questions on the real test and you need to get at least 65% to pass.


http://istqb.patshala.com/
This site has several full practice tests, as well as tests for the individual chapters for the ISTQB book although they are labeled as the main concepts that each chapter teaches as opposed to Chapter 1, 2, 3, 4, 5, 6. 
CH 1: Fundamentals of Testing
CH 2: Testing through the software life cycle
CH 3: Static Techniques
CH 4: Test design techniques
CH 5: Test Management
CH 6: Tool support for testing
These exams don't have a time limit so there is plenty of time to take notes or look for the answers if you're not sure what the right answer is.  However on the real test you won't be allowed to look for answers so you probably shouldn't do it too often for practice tests.


http://www.testingexcellence.com/istqb-quiz/istqb-foundation-practice-exam-1/
This has 2 full practice exams and a bunch of other related practice tests for stuff like testing fundamentals, management, and white box testing.  The practice exams aren't timed on this site so you can take your time.