CSAT (USAF Cyber Test) study guide
CSAT (USAF Cyber Test) · Work through your exam, one topic at a time.
The CSAT (commonly called the USAF Cyber Test) is a computer-delivered, proctored assessment used in U.S. Air Force cyber accessions and placement to gauge a candidate's aptitude for technical cyber work. The CSAT (USAF Cyber Test) study guide has 9 sections and about 2,580 words.
01Networking Fundamentals and Protocols
Memorize the OSI seven layers top-down: Application, Presentation, Session, Transport, Network, Data Link, Physical. Map devices to layers: hub/repeater = Layer 1, switch/bridge with MAC addressing = Layer 2, router with IP addressing = Layer 3, most firewalls = Layer 3/4, proxies = Layer 7.
293 words, about 1 min02Operating Systems and Command-Line Concepts
The kernel runs in privileged mode and mediates hardware access; user programs reach it through system calls. A process is a running program with a PID and its own address space; threads share that space.
278 words, about 1 min03Programming and Scripting Logic
Variables carry types (integer, float, string, boolean). Scope determines visibility: locals die with the function, globals persist.
253 words, about 1 min04Computer Architecture and Data Representation
8 bits = 1 byte; 4 bits = 1 nibble = one hex digit. Convert binary to hex by grouping nibbles: 1011 0110 = 0xB6.
314 words, about 2 min05Security Fundamentals and Threat Concepts
The CIA triad - confidentiality, integrity, availability - anchors most questions; add authentication, authorization, accounting (AAA) and non-repudiation. A vulnerability is a weakness; a threat is a potential actor or event; risk combines likelihood and impact.
272 words, about 1 min06Cryptography and Encoding Basics
Symmetric encryption (AES, ChaCha20) uses one shared key: fast, but key distribution is the hard problem. Asymmetric encryption (RSA, ECC, Diffie–Hellman) uses a public/private pair: slow, and used mainly for key exchange and signatures.
286 words, about 1 min07Cyberspace Operations and Defensive/Offensive Doctrine
Offensive cyberspace operations (OCO) act against adversary systems; defensive cyberspace operations (DCO) protect friendly networks; DODIN operations build and maintain the network itself. Every operation requires authorization, defined scope, and rules of engagement - unauthorized “testing” is a crime, not OCO.
280 words, about 1 min08Data Analysis, Databases, and Pattern Recognition
Rows are tuples, columns are attributes. A primary key is unique and non-null; a foreign key references another table's primary key and enforces referential integrity.
278 words, about 1 min09Analytical and Logical Reasoning
Deduction moves from general rules to a conclusion that must follow; induction generalizes from observations and is only probable; abduction picks the best available explanation. Validity concerns structure alone; soundness requires true premises plus valid structure.
326 words, about 2 min