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With an All-Access Pass, you get access to every current and future ITU course. Access over 2,500 hours of on-demand IT Training 24/7. With over 13,000 on-demand training videos and 19,000+ practice questions, you'll have the tools to excel in the critical IT skills needed to elevate your IT Career. Our All-Access pass is available in three affordable plans.
ITU provides a vast array of IT-focused on-demand training designed to help you excel in both entry-level and advanced IT skills. Browse our most popular training or take a deper dive into our robust catalog of training categories.
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Train for a globally recognized IT certification with our comprehensive CompTIA courses.
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Ethical Hacking (CEH) | CISSP | CISM
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An essential skill set in today's IT environments. Learn cloud computing platforms
Azure Administrator | Google Cloud | AWS Practitioner
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Definition: Update Rollup An update rollup is a cumulative package of updates that includes new improvements and fixes for software or an operating system. Rather than deploying multiple individual updates, an update rollup combines them into a single package that can be applied to software systems to bring them up to date. This approach simplifies …
Definition: Public Key Cryptography Public Key Cryptography, also known as asymmetric cryptography, is a cryptographic system that uses pairs of keys: public keys, which may be disseminated widely, and private keys, which are known only to the owner. This system enables secure data encryption, digital signing, and key exchange over potentially insecure communication channels. Each …
Definition: Hybrid Cryptosystem A hybrid cryptosystem is a cryptographic system that combines the efficiency of symmetric encryption with the security advantages of asymmetric encryption. It utilizes the best features of both encryption methods to secure data transmission over potentially insecure networks. In a hybrid cryptosystem, data is encrypted with a symmetric key, which is then …
Definition: SSL (Secure Sockets Layer) SSL (Secure Sockets Layer) is a cryptographic protocol designed to provide secure communication over a computer network. It is the standard technology for keeping an internet connection secure and safeguarding any sensitive data that is being sent between two systems, preventing criminals from reading and modifying any information transferred, including …
Definition: Off-the-Record Messaging (OTR) Off-the-Record Messaging (OTR) is a cryptographic protocol that provides encryption for instant messaging conversations. OTR ensures that messages are not only encrypted but also authenticated, meaning that the identities of the participants can be verified. Additionally, it provides forward secrecy and plausible deniability, making it a robust choice for secure and …
Definition: Key Agreement Scheme A key agreement scheme is a protocol used in cryptography that allows two or more parties to agree on a shared secret key, which can then be used to encrypt and decrypt messages between them. This scheme ensures that the key is generated in such a way that both parties contribute …
Definition: Transport Layer Security (TLS) Transport Layer Security (TLS) is a cryptographic protocol designed to provide secure communication over a computer network. It is widely used for internet security, ensuring that the data transmitted between web browsers and servers remains private and integral. TLS is the successor to the Secure Sockets Layer (SSL) protocol and …
Definition: Secure Shell (SSH) Secure Shell (SSH) is a cryptographic network protocol for operating network services securely over an unsecured network. It provides a secure channel over an insecure network in a client-server architecture, enabling users to log into another computer over a network, execute commands in a remote machine, and move files from one …
Definition: Broadcast Encryption Broadcast encryption is a cryptographic technique that allows the secure transmission of digital content to a group of recipients. It is designed to efficiently manage access to broadcasted data, ensuring that only authorized users can decrypt and view the content. This technology is pivotal in scenarios where data needs to be securely …
Definition: Public Key A public key is one half of a cryptographic key pair used in public key cryptography, which enables secure data exchange over insecure communication channels. It works alongside a private key to encrypt and decrypt messages, ensuring confidentiality, integrity, and authentication. Public key cryptography is fundamental to various digital security protocols, including …
Definition: Message Digest A message digest is a cryptographic hash function output that provides a fixed-size string of characters from an input of any size. It serves as a digital fingerprint of the input data, ensuring data integrity and security. Cryptographic hash functions are designed to be one-way functions, making it computationally infeasible to reverse …
Definition: Cisco Packet Tracer Cisco Packet Tracer is a comprehensive, cross-platform network simulation software that allows users to design, build, and configure virtual networks. Developed by Cisco Systems, it serves as an educational tool for Cisco Networking Academy students and instructors, enabling the practice of networking, troubleshooting, and simulation of network phenomena without the need …
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