Operating Systems

Operating Systems Operating Systems Spring 2007 2nd Exam Review Chapters 10, 11, 12, 13, 16, 19

Coverage • Virtual vs. Physical Memory • Paging vs. Segmentation • Artificial Contiguity • Sharing • Protection and Access Control • Address Translation Techniques – Direct Mapping, Associate Mapping, Direct/Associative Mapping, Multilevel Page Tables, Inverted Page Tables COP 5614 - Operating Systems

Coverage • VM Fetch Strategies • Demand vs. Anticipatory Strategies • Spatial vs. Temporal Locality • Specific Strategies: Random, FIFO, LRU, LFU, NUR, 2nd Chance, Far Page, etc. COP 5614 - Operating Systems

Coverage • Disk layout – sectors, tracks, cylinders • Time Terms – latency, seek, transmission, etc. • Evaluation of Disk Scheduling – throughput, response time (mean, variance), etc. • Caching – write through vs. write back • File system responsibilities • Logical vs. physical vs. symbolic names & views COP 5614 - Operating Systems

Coverage • Network types – bus, ring, mesh, tree, etc. • LANs vs WANs • Connection-oriented vs. Connectionless • TCP Three-way handshake • IP addresses – IPv4 vs. IPv6 • IPv6 protocols – Unicast, Anycast, Multicast • Collision detection & resolution • 802.11 protocol COP 5614 - Operating Systems

Coverage • Types of security threats • Private Key Cryptography – advantages & disadvantages • Public Key Cryptography – advantages & disadvantages • Cryptanalytic Attacks • Privacy vs. Integrity vs. Authentication vs. Authorization vs. Nonrepudiation COP 5614 - Operating Systems

Coverage • OSI Model • All Application • People Presentation • Seem Session • To Transport • Need Network • Data Data Link • Processing Physical COP 5614 - Operating Systems

Agenda for next week: • Final Exam! COP 5614 - Operating Systems

Operating Systems