COMPREHENSIVE HOME SECURITY SYSTEMS
STUDY GUIDE 2026
◉ Kristin's position in IT focuses on using antivirus, anti-spyware,
and vulnerability software patch management to maintain security
and integrity. Which IT infrastructure domain is she protecting?
LAN-to-WAN Domain
LAN Domain
User Domain
Workstation Domain.
Answer: Workstation Domain
◉ Which of the following is considered a node?
Patch panel
Network cable
,Keyboard
Networked printer.
Answer: Networked printer
◉ Which OSI model layer deals with frames?
Network Layer
Data Link Layer
Physical Layer
Application Layer.
Answer: Data Link Layer
◉ To secure the System/Application Domain of an IT infrastructure,
what is the primary focus?
Protecting a system where the hacker does not have to be physically
present to attack the network
,Defending against hackers targeting routers, circuits, switches,
firewalls, and equivalent gear at remote locations
In a collection of servers and virtualized systems, defending both
data and server computing power
Educating users about social engineering techniques, such as clever
wording intimidation, to prevent loss of private information and
reduction in network security.
Answer: In a collection of servers and virtualized systems, defending
both data and server computing power
◉ Information leakage often stems from malicious employees. (T/F).
Answer: True
◉ Which form of firewall filtering is NOT as clear or distinct as other
types?
Filtering on the source address
Filtering on the destination address
, Filtering on whether an address is public or private
Filtering on whether an address is real or spoofed.
Answer: Filtering on whether an address is real or spoofed
◉ You are setting up a small home network. You want all devices to
communicate with each other. You assign IPv4 addresses between
192.168.0.1 and 192.168.0.6 to the devices. What processes must
still be configured so that these nodes can communicate with the
Internet?
None. The IP address range is routable.
Both network address
translation (NAT) and port address translation (PAT) must be
enabled to allow private network addresses to be translated to a
random external port and public IP address.
Each device must be assigned a public IP address for it to be
routable on the Internet.
The RFC 1918 addressing protocol must be enabled on the external
router..
Answer: Both network address