Andrews, Jean,  <br/><br/>
CompTIA A+ core 2 exam :   guide to operating systems and security / 
Jean Andrews, Joy Dark, Jill West.  
 - Tenth Edition.  
 - Boston, MA :   Cengage Learning,   c2020.  
 - xxxiii, 702p. 
<br/><br/>Includes index.  
<br/><br/>
<br/><br/><label>ISBN: </label>9780357108505 
<br/><br/><label>Subjects--Personal Names: </label><br/>Computer technicians -- Certification -- Study guides.<br/>Electronic data processing personnel -- Certification.<br/>Operating systems (Computers) -- Examinations -- Study guides.<br/>Computer security -- Examinations -- Study guides.
<br/><br/><label>Dewey Class. No.: </label>005.1 A565 2020