어떤 과목이 제일 재미있고 많이 배울까요?

다음중에 어떤 과목이 제일 재미있고 많이 배울까요?
또는 어떤 과목이 석사 갔을 때 가장 도움이 많이 될까요?(시간표 맞추느라 아래 과목들 밖에 선택 할 수 없습니다.)

CSCI 5131 - Advanced Internet Programming
Issues in internet programming: Java programming, concurrent programming, workflow, distributed databases, security, collaborative computing, object-oriented architecture/design, network publishing, messaging architecture, distributed object computing, internets.

CSCI 5221 - Foundations of Advanced Networking
Design principles, protocol mechanisms. Network algorithmics, implementation techniques. Advanced network architectures, state-of-art/emerging networking technologies/applications, network modeling. Simulation, experiments.

CSCI 5511 - Artificial Intelligence I
Introduction to AI. Problem solving, search, inference techniques. Logic and theorem proving. Knowledge representation, rules, frames, semantic networks. Planning and scheduling. Lisp programming language.

CSCI 5708 - Architecture and Implementation of Database Management Systems
Techniques in commercial/research-oriented database systems. Catalogs. Physical storage techniques. Query processing/optimization. Transaction management. Mechanisms for concurrency control, disaster recovery, distribution, security, integrity, extended data types, triggers, and rules.

CSCI 5471 - Modern Cryptography
Introduction to cryptography. Theoretical foundations, practical applications. Threats, attacks, and countermeasures, including cryptosystems and cryptographic protocols. Secure systems/networks. History of cryptography, encryption (conventional, public key), digital signatures, hash functions, message authentication codes, identification, authentication, applications.