11–15% of the AP exam. Key topics: The Internet: packet switching and routing, TCP/IP protocol suite, DNS: how domain names resolve to IP addresses, HTTP and HTTPS: request-response model, Fault tolerance and redundant network paths, Parallel computing: tasks split across multiple processors, Distributed computing: tasks split across multiple computers, Bandwidth and throughput, Symmetric encryption (same key to encrypt and decrypt), Public-key (asymmetric) encryption: public key encrypts, private key decrypts, Digital certificates and certificate authorities, Common cybersecurity attacks: phishing, malware, DDoS.
Study guide content for this unit is being prepared. Check back soon for complete lesson notes, formula sheets, and worked examples.
