Computer Science Technology

420.BO - DCS Computer Science

International Student

As computer science is a growing and innovative field, it is important to remain on the cutting edge of computer network technologies and infrastructure. Nowadays, all businesses rely on digital technologies. They need to have a comprehensive cybersecurity strategy in place to guard against different types of cyberattacks. This training aims to train students in the design, configuration and management of these infrastructure, so as to become experts in the field.


French and English


In person


2 670 hours


Fall 2025




A state-of-the-art Cybersecurity program 

Every business relies on digital technology. They need to implement a comprehensive cyber security strategy to guard themselves against various types of cyber-attacks. In addition, there is a shortage of cybersecurity professionals. There are rapidly evolving technologies and standards to master and apply. Our program covers various aspects of the specialization with a focus on network management, Cybersecurity and cloud computing. The program is built to ensure that students qualify for many in-demand networking and cybersecurity jobs through a well-planned curriculum that makes it easy to follow even for someone with no experience.

This specialized six-semester program (3 years – 2 670 hours) includes an eight-week internship (270 hours) in a company. The program aims to prepare students to develop the knowledge and skill required to design, configure, and manage a network’s infrastructure and its security, as well as maintain all IT-related operations. Our program empowers students to stay ahead and equip themselves for a rewarding career in network administration and cybersecurity.

The Government of Quebec funds a portion of the tuition fees for students in the field of Computer Science and Networks, which started in the fall of 2022. With this scholarship, students will be able to receive up to a maximum of $9,000 in college financial aid. Awards are $1,500 per semester. They will be disbursed after each eligible semester.

For more details or to apply, visit the Department of Higher Education website, under the Quebec Perspective Scholarship Program section.

We are recognized as a member of the distinguished Cisco Networking Academy, and hence, we can offer our students access to several certifications that are highly recognized and required by the job market.

Mandatory material

Students must have a laptop with the following minimum specifications:

  • Windows 11 PRO (Windows 10 S (limited version of Windows 10), MAC and Chromebook are not compatible);
  • Processor: Intel I7 or AMD Ryzen 7 or Intel I5 or AMD Ryzen 5 latest generation with VT-X virtualization;
  • Memory: 32GB recommended;
  • Hard Drive SSD: size 500 GB or higher;
  • Screen: 14 inches minimum;
  • Connectivity: USB 3.0, Wi-Fi and NIC LAN;
  • You will need a USB-RJ45 adaptor if your laptop doesn’t have a network jack.

The College does not loan computers to students. Please Bring Your Own Devise. A computer cannot be replaced by a smartphone.

The program content, hands-on learning activities and industry standard technologies prepare the students for various high in-demand certifications such as CISCO (CCNA, CCNP), CompTIA (A+), LPIC (Linux essentials), LPIC (security essentials), Azure and many more.


The admission requirements

To qualify, you must:

Have a Secondary School Diploma (SSD)


Have a Secondary Diploma of Vocational Studies (DVS) including:

  • Secondary V Language of Instruction;
  • Secondary V Second Language;
  • Secondary IV Mathematics


Have equivalent qualification for a person who has studied outside Quebec


Have equivalent experience and qualifications and have interrupted his or her full-time studies for a period of at least 24 consecutive months.

Other requirements

Successful completion of the following course:

Secondary 4 Techno-Sciences mathematics OR Natural Sciences mathematics (Math 426 or 436) OR Secondary 5 Culture, Society and Technology mathematics.

A candidate who has not obtained his or her SSD or DVS can be accepted conditionally if not more than 6 credits are missing to obtain the SSD or DVS. In such a case, the candidate must agree to complete the missing credits during his or her first semester of studies.

To apply students must provide:

  • Admission form to be completed online ($ 50 admission fee will be generated);
  • High school transcript issued by the “Ministère de l’Éducation d’Enseignement Supérieur”;
  • Last post-secondary transcript, if applicable OR Equivalence issued by the “Ministère de l’Immigration, Francisation et Intégration du Québec”;
  • Birth certificate (long-format issued by l’État Civil).

* Candidates born outside of Quebec must submit documents proving their official status in Quebec.

Applicants who are in their final year of high school receive a conditional acceptance, pending receipt of their high school diploma.

Collège O’Sullivan de Montréal inc. operates on a first-come, first-serve basis. Applications are processed throughout the year. An applicant will usually be notified of the Admissions Committee’s decision within three weeks of their application during the registration period.

Admission fees for Canadians or international students must then be paid according to the established deadlines.

Are you ready to register?



Why O’Sullivan?

96% Placement rate

Our lifetime placement service allows you to benefit from our solid reputation within the legal community

Up-to-date technology program

This program teaches new technologies that are perfectly aligned with strong industry demand.

Participation in cybersecurity forums

Students take part in cybersecurity events and forums, including the InCyber North America Forum, to keep up to date with the latest developments in IT.

Amazing Partners

The Collège O’Sullivan has many partnerships with different organizations, such as Amazon Web Services (AWS), and the prestigious Cisco Networking Academy.


A rewarding and captivating career awaits you!

As a person working in Network Management and Cybersecurity, you will be able to practice your profession in small, medium, or large-sized companies and in all sectors and domains, including high-technology industries, such as:

  • Local Network Administrator;
  • System Administrator;
  • Computer Network Technician;
  • Networking and system administrator;
  • IT consultant;
  • User Support and IT Specialist;
  • Network Security Technician.


Computer security, including:

  • Database Security;
  • Cryptography;
  • Computer network protection devices;
  • Software and application security;
  • Ethical hacking tools;
  • Notions of penetration testing;
  • Design and validate evaluation, testing and audit strategies;
  • Intrusion detection and prevention;
  • Risk analysis;
  • Hardening of operating systems.


Microsoft Windows, Windows Server, VMware, Hyper-V, Linux, and antivirus

Programming languages

Python, JavaScript, and PowerShell



Certifications, an added bonus

Students who wish to do so can obtain the following certifications: CCNA (Cisco Certified Network Associate), CCNP (Cisco Certified Network Professional), as well as CompTIA (A+), Linux Essentials and Security Essentials (LPIC), Azure and IBM.

The college is a member of the prestigious Cisco Networking Academy. Cisco is a global networking equipment company that has developed several training courses used in networking around the world.

The program offered at the college prepares students for the certification exams and will help you increase your chances of becoming a certified professional.


Course curriculum

Here is the list of courses in the DCS Computer Science Technology.

Complete course curriculum

Complete course curriculum

Tuition fees

Tuition fees

Quebec students

Canadian students

International students


Frequently asked questions

Here are the most frequently asked questions about the DCS in Computer Science Technology

Is this DCS considered a pre-university program?

Is there a deadline to apply?

How many French classes will I need to take?

Does the college provide laptops and other devices?


You have more questions?

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