Why is the Canadian citizenship test that important? Well there is a simple answer for that question. Without that test successfully passed you can't become a Canadian citizen.
But that's not the only reason, lets review a little bit of history related to the test. Canada opened their borders with the skilled worker and investor programs back in 1960. Since then the flow of immigrants to Canadian territories did nothing more than rise. The main focus was to establish which where applicable future citizens, that would benefit the country not only economically but civilly. That's when the citizenship test came to please, to ensure immigrant integration among other reasons.
Having this said you can start understanding what the citizenship test is all about. One aspect is that it gives the applicant basic knowledge of the Canadian spirit and culture. It offers an historical, political and economical view of Canada as a whole. In the other side lectures the future citizen about its new gained civil rights and responsibilities, stressing in the constitutional right to vote. There is nothing more important for a democracy than voting citizens, without which there is no democracy. The test is both and integration tool and a civic training for all new citizens.
As you may know the test is one of the final steps towards Canadian citizenship. Once the application is reviewed the future citizen (don't worry we will help you pass the test) receives an invitation letter to the closest CIC office. Careful with the address you disclose in the form since is the way the CIC (citizenship and Immigration Canada) will establish which is the closest office. For change of addresses contact the call center as soon as possible for test reschedule.
The test can be taken only ones per application process. Meaning that you have to get it right up front. The 2009 results show that only the 4% of the applicants failed the test so is not an impossible task. Upon failure you will be invited to assist a show interview with the local citizenship judge. About 15 to 30 minutes interview to assess you regarding the test low point and take a final decision for the application. In this stage the 2009 results show that the 20% of the interviews ended up in form rejections so this is a stage you don't want to get to.
The test is 20 multiple choice long with a passing score of 75%. There are two questions that can't be wrong, the electoral system questions. This correlates with the importance of having a fully capable civilly active citizen, see how important it is? So study the material related to constitutional rights in depth. You will have around 40 minutes to complete the test. The score is not immediate, a letter will be sent to your home address with the score notification and the oath or judge interview schedule.
So what is the best advice we can give you? Studying the material is very important of course but to beat a multiple choice test what you really need is tons of practice. You need to do as many practice questions as you can fetch. The internet is filled with mock test and question packages. Do as many as you can. This will do two things for you. Let you know your weak points and a big review over the learned content. Also remember that the test has regional questions. Those are usually related to your ministry of Parliament, lieutenant general and political figures in the territory or province. Study hard and have a lot of practice!