My InfoTech Journal: Decoding the Networking Enigma: OSI vs. TCP/IP Reference Models The OSI (Open Systems Interconnection) Reference Model and the TCP/IP (Transmission Control Protocol/Internet Protocol) Reference Model: The OSI Reference Model and the TCP/IP Reference Model are both conceptual frameworks used to understand and standardize how different networking protocols and technologies interact. Here are some areas of comparison: 1. Number of Layers: OSI Model : It consists of seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and TCP/IP Model : It has four layers: Network Interface, Internet, Transport, and Application. 2. L ayer Functionality: OSI Model : Tends to be more comprehensive and abstract, defining each layer's functions independently. TCP/IP Model : Reflects the actual implementation of the Internet and focuses on how protocols are used in practice. 3. Adoption / Use: OSI Model : Less commonly used in practice, but it is still valuab
My InfoTech Journal: Information Security Careers High-Demand Careers in Information Security Information Security is a field with so many potential career directions and which the demand for these skill sets are continuously growing. I have done a research of the high-demand careers in LinkedIn using Information Security career keywords. I am sharing the search results with the corresponding statistics. I hope this will help you decide on which career path you want to pursue. Overall, the total OPEN jobs within these qualifications is currently at 1,254,503 jobs worldwide! Qualifications by Certifications Qualifications by Specialization Qualifications for Directors and Managerial positions Qualifications related to Information Security Qualifications by Certifications The total job opening for these qualifications with certifications is at 127,190 job s! CISSP = 79,200 (Certified Information Systems Security Professional by ISC 2 ) CISA = 25,677 (Certified Information Syste