Preparation should target your lowest scoring skill, since scoring work per ability. A weak area drags down your total see CRS points for language. Knowing the exam structure counts almost as much as language ability itself.
Immigration, Refugees and Citizenship Canada accepts specific language examinations in the Express Entry system. English options IRCC accepts CELPIP General, IELTS General Training and PTE Core, while French tests include TEF and TCF Canada. The choice should reflect how each exam is structured and not perceived difficulty.
The three main streams carries its own minimum. FSW calls for CLB 7 in reading, writing, listening and speaking. Canadian Experience Class varies depending on the job class. Clearing the minimum only makes you eligible though it is unlikely to secure an ITA.
Your language scores carries significant points in Express Entry scoring. Test results map into CLB levels, and it is the benchmark level that determines the points you receive. Improving by two benchmark levels frequently delivers a meaningful number of points, often exceeding other improvable factors.