Understanding the format and structure of the IELTS exam before test day can make a significant difference in your preparation strategy. Whether you choose the Computer Delivered Test (CDT) or the Paper Based Test (PBT), knowing what each option involves helps you feel confident and ready to perform at your best.

What is the difference between CDT and PBT in the IELTS exam?

The IELTS exam can be taken in two formats: the CDT (Computer Delivered Test) and the PBT (Paper Based Test) [0:15]. Most candidates consider the computer-delivered version more convenient for two main reasons: results come back faster, and most people are already comfortable using computers.

The paper-based test, however, can present challenges. If your handwriting is not legible, you might lose marks, especially in the writing section [0:38]. This is an important factor to consider when choosing your exam format.

How does the computer-delivered test screen look?

The CDT interface is divided into three main areas [0:50]:

• Timer at the top: shows remaining time and changes color, turning red when time is almost up.
• Middle section: displays the content for each part, such as reading passages or listening questions with possible answers.
• Bottom navigation: numbered buttons representing each question, allowing you to skip or move between them freely.

What documents do you receive in the paper-based test?

On exam day for the PBT, you receive two documents [1:28]:

• The booklet: contains all the information needed to answer the exam.
• The answer sheet: the only document where your answers count toward your score.

Any answer not transferred to the answer sheet will not be graded [1:45]. The exam provides extra minutes specifically for transferring your answers, so take your time and do it accurately.

How is the IELTS exam structured across its four sections?

The IELTS exam consists of four sections: listening, reading, writing, and speaking. Each one has its own timing, number of questions, and question types.

What should you know about listening and reading?

The listening section includes four recordings that you hear only once [2:05]. You have 30 minutes to answer 40 questions — that is 10 questions per recording — across six different question types. Paying attention and answering simultaneously is essential since there is no replay.

The reading section lasts 60 minutes and contains three passages [2:35]. Each passage includes between 13 and 14 questions, totaling 40 questions. There are 11 question types, which may sound overwhelming, but learning to tackle each one individually makes the process manageable.

How are the writing and speaking sections organized?

The writing section gives you one hour to complete two tasks [2:58]:

• Task 1: write at least 150 words in approximately 20 minutes. It contributes 33% of your writing score.
• Task 2: write at least 250 words in the remaining 40 minutes. It contributes 66% of your writing score.

Since Task 2 carries double the weight, allocating more time to it is a smart strategy [3:22].

The speaking section is a face-to-face interview with an examiner lasting 12 to 14 minutes [3:35]. You complete three tasks, and your performance is evaluated using four criteria that will be covered in detail later in the course.

Which websites can help you prepare for IELTS?

Three useful resources were recommended for additional practice and exam information [3:55]:

• ielts.org: offers practice resources and detailed exam information.
• idp.com/global: helps you find test centers near you and shows whether they offer PBT or CDT. You can also register through this site.
• britishcouncil.org/exam: provides extra practice materials and general exam details.

Now it is your turn — are you planning to take the paper-based exam or the computer-delivered test? Share your choice and your reasons in the comments.