BURNS, DAVID <br/><br/>
Ccnp security ips 642-627 : official cert guide / 
DAVID BURNS 
 - xxxiv.; 636 p.; ill.; 24 cm  24cm 
<br/><br/><label>ISBN: </label>2587142554 9782587142557 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks--Security measures--Examinations--Study guides<br/>Telecommunications engineers--Certification