comptia security study material

20145317 "Information Security system Design Fundamentals" 7th Week study summary 1 Textbook Learning content SummaryBasic storage technology: SRAM memory DRAM memory ROM memory rotary hard drive SSD1. Storage TechnologyThree common storage technologies: ram/rom/disk( 1 ) random access memory RAM Two categories: Static RAM (SRAM) and dynamic RAM (DRAM) Static RAM (SRAM) is faster, but much more

20145216 Shi Yaoyao Information Security System Design Basics 11th weekly learning summary teaching material content summary chapter 8 abnormal Control Flow Smooth: indicates that commands in the memory are adjacent. Mutation: The occurrence of non-adjacent, usually caused by commands such as jump, call, and return. Abnormal control flow ECF: these mutations. About ECF: 1. ECF is the basic mechanism use

group-linked cacheAs with the direct map cache, group index bits identify groups.2. Row matching and word selection in group-linked cacheMore complex than direct-mapped caches3. Row substitution when missing in group-linked cachefully-connected cacheA fully-connected cache consists of a group (e=c/b) that contains all the high-speed slowdown.Basic structure:1. Group selection in the fully-connected cacheThere's only one group, so it's simple.2. Line matching and word selection in fully-connecte

-feeling bad, read a lot of confusion, code execution is also less. This week's code package gives me a good chance to practice understanding! So I just took the code out of the video in handy. The feeling learned a lot of content. In particular, the function of fork such functions are in the execution of the code to feel its principle. It was really touching when I finished it!!!Because there is also a recent project of this course, the internet also searched a lot of communication between the

recently referenced data items, or to the data item itself that has recently been referenced. This tendency, called the principle of locality, is a persistent concept(1) Time locality: In a program with good time locality, the memory location that has been quoted once is likely to be referenced more than once in the near future(2) Spatial locality: In a program with good spatial locality, if a memory location is referenced once, then the program is likely to refer to a nearby memory location in