Keys to the Internet
On October 11, the DNS root switches to a new master key for only the second time ever, and unready resolvers could cut users off from websites.
Key terms
AP Cybersecurity alignment
- 2.1.E.4Risk mitigation implements security controls to reduce the likelihood or impact of a risk.Learning objective: Identify strategies for managing risk.
- 5.4.C.1Common asymmetric encryption algorithms include RSA and elliptic curve cryptography (ECC). Asymmetric algorithms are used in many applications, including digital signatures and digital certificates.Learning objective: Apply asymmetric encryption algorithms to encrypt and decrypt data.
AP Networking alignment
- 4.1.B.1Network connectivity supports essential tasks such as communication, data access, and service delivery. When connectivity is unreliable, users or employees may lose access to essential systems, which can lead to delays,…Learning objective: Explain how unreliable connectivity impacts organizations.
- 4.2.A.2Network protocols are used for identifying devices and networks to ensure data are directed to the correct destination. • MAC addresses and ARP are used to identify devices on a local network. • IP addresses identify local and…Learning objective: Describe the purpose of common network protocols.
- 4.6.B.4Applying and documenting software updates and patches reduces the risk of failure and reduces recovery time if an outage occurs.Learning objective: Identify ways to improve the reliability and availability of networked systems.