CompTIA Security+ SY0-501 Glossary (full)| 519 questions| with complete solutions

3DES CORRECT ANSWERS: Triple Digital Encryption Standard. A symmetric algorithm used to encrypt data and provide confidentiality. It is a block cipher that encrypts data in 64-bit blocks. AAA CORRECT ANSWERS: Authentication, authorization, and accounting. A group of technologies used in remote access systems. Authentication verifies a user's identification. Authorization determines if a user should have access. Accounting tracks a user's access with logs. Sometimes called AAAs of security. ABAC CORRECT ANSWERS: Attribute-based access control. An access control model that grants access to resources based on attributes assigned to subjects and objects. acceptable use policy (AUP) CORRECT ANSWERS: A policy defining proper system usage and the rules of behavior for employees. It often describes the purpose of computer systems and networks, how users can access them, and the responsibilities of users when accessing the systems. access point (AP) CORRECT ANSWERS: A device that connects wireless clients to wireless networks. Sometimes called wireless access point (WAP). accounting CORRECT ANSWERS: The process of tracking the activity of users and recording this activity in logs. One method of accounting is audit logs that create an audit trail. ACLs (access control lists) CORRECT ANSWERS: Lists of rules used by routers and stateless firewalls. These devices use the ACL to control traffic based on networks, subnets, IP addresses, ports, and some protocols. active reconnaissance CORRECT ANSWERS: A penetration testing method used to collect information. It sends data to systems and analyzes responses to gain information on the target. Compare with passive reconnaissance. ad hoc CORRECT ANSWERS: A connection mode used by wireless devices without an AP. When wireless devices connect through an AP, they are using infrastructure mode. administrative controls CORRECT ANSWERS: Security controls implemented via administrative or management methods. AES (Advanced Encryption Standard) CORRECT ANSWERS: A strong symmetric block cipher that encrypts data in 128-bit blocks. AES can use key sizes of 128 bits, 192 bits, or 256 bits. affinity CORRECT ANSWERS: A scheduling method used with load b