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DSA-436 Network System Security 3(3-0-6)
Prerequisite : DSA-307 Computer Network and Communication System 1
Corequisite : No
Security policies, threats and methods to combat intrusions such as virus, Trojan, and denial
of service (DOS). Basics of symmetrical and asymmetrical encryption techniques authentications
factors, digital signature, digital certifications, public key distribution will be discussed. Firewall
designation techniques, threats detection/protection system and virtual private network (VPN), laws
and ethics in computer-system-based society, recovery plans for emergency events will be covered.

DSA-437 Knowledge Management 3(3-0-6)
Prerequisite : No
Corequisite : No
Basic concept of knowledge management, types of knowledge, knowledge creation model,
knowledge management process, knowledge creation and application, knowledge as an
organizational asset and its effective management in operation, process, and technology, intellectual
property management, knowledge management tools and techniques.

DSA-438 Information Retrieval 3(3-0-6)
Prerequisite : No
Corequisite : No
Theories and concepts of information retrieval. Main components of information retrieval.
Process and steps for information retrieval. Strategies and techniques of information retrieval and
their evaluations.

DSA-439 Computer Security System 3(3-0-6)
Prerequisite : No
Corequisite : No
Security policies and their implementation. Threat models, attacks that compromise
security such as virus, Trojan and DOS, and techniques for achieving security. Principles of
symmetric and asymmetric encryption. Authentication such as digital signature and digital
certificate. Topics include operating system (OS) security, language security, hardware security, and
security in web applications. Laws and ethics in computer-system-based society, recovery plans for
emergency events.