CompTIA Security+ Cert Prep 5 Physical
Sec. (Answered) 100% Correct. Updated Fall
2024/2025.
Hot/Cold Aisle
manage cooling by aligning data centers so that the front of one row of servers faces the front of the
adjacent row (cold aisle) and the backs of servers face each other (hot aisle)
Class A fire extinguisher
Common combustibles (wood, cloth, trash)
class B fire extinguisher
Flammable liquids (Gas and Oil)
Class C fire extinguisher
Electrical fires (Data Centers)
Class D fire extinguisher
heavy metal fires (Industrial components)
Class K fire extinguisher
kitchen fires (fats and oils)
electromagnetic interference
generated by all electronic equipment
-interferes with normal operations of other equipment
-enables eavesdropping attacks by reconstructing keystrokes
faraday cages
protect against electromagnetic interference
-metal cage around equipment that prevents magnetic waves from escaping
mantraps
prevent tailgating
-two door system with the second door requiring private access
two person integrity
Two people must enter sensitive areas together
data lifecycle
, stages of data in cloud or on premises
-doesn't always occur in the same order
Create, Store, Use, Share, Archive, Destroy
Data Lifecycle
clearing
overwrites sensitive information to frustrate casual analysis (data sanitation)
purging
uses more advanced techniques to frustrate laboratory analysis (data sanitation)
ex. cryptographic functions, strong magnetic fields
destroying
Completely obliterates the media through shredding, pulverization, melting, or burning. (data sanitation)
cable locks
protect laptops and other portable technology against theft while in use
-secure other end to wall mount or secure area
business continuity planning (BCP)
A set of controls designed to keep a business running in the face of adversity, whether natural or man-
made.
- also known as Continuity of Operations Planning (COOP)
-affects availability
Business Impact Assessment (BIA)
Identifies and prioritizes risks
providers and customers
business continuity planning in the cloud is a partnership b/t_____
high availability
uses multiple systems to protect against service failure
EX. cluster of web servers or a pair of firewalls for a backup
having operationally redundant systems, sometimes at different sites
Core concepts of high availability
fault tolerance
makes a single system resilient against a technical framework
load balancing
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