CompTIA Security+ Certification Guide by Ian Neil

Author:Ian Neil
Language: eng
Format: epub
Tags: COM032000 - COMPUTERS / Information Technology, COM055000 - COMPUTERS / Certification Guides / General, COM055020 - COMPUTERS / Certification Guides / MCSE
Publisher: Packt Publishing
Published: 2018-09-29T12:56:19+00:00

String s=null;

String s1="a";

String s2=s1+s;// null pointer exception

Static code analyzers: When developers use static code analyzers, the code is not executed locally. Instead, they launch the static code analyzer tool, then the source code is run inside the tool that reports any flaws or weaknesses.

Exam tip:

A null pointer exception points to an object that is stored as a null value.

Dynamic code analysis: When developers use dynamic analysis, the code is run, and then they use a technique called fuzzing where a random input is inserted into the application to see what the output will be. White box pen testers use fuzzing to see the flaws and weaknesses in an application before it is rolled out to the production environment.

Stress testing: Stress testing is where a load is put through an application to see how its processors, memory, and disks can deal with the load.

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