NP 235 QUIZ 5 PRACTICE REVIEW 2026
TESTED QUESTIONS
◉ Standards. Answer: Interpret policies in specific situations
◉ Procedures. Answer: Provide details on how to comply with
policies and standards
◉ Guidelines. Answer: Provide general guidance on issues; not
requirements but strongly recommended
◉ Defense in Depth. Answer: Layering defenses to provide added
protection
Types:
1) Concentric rings
2) Overlapping Redundancy
3) Segregation
◉ Security perimeter. Answer: A well-defined boundary between the
organization and the outside world. Cybersecurity emphasizes the
system-centric model (placing controls at the network level)
,◉ Internet Perimeter. Answer: Secure access to the Internet for
enterprise employees and guest users, regardless of location.
It should...
1) Route traffic between enterprise & internet
2) Prevent executable files from being transferred through email
attachments/browsing
3) Monitor internal/external network ports
4) Detect & block traffic from infected internal end point
5) Control user traffic bound for the internet
6) Identify and block malicious packets
7) Eliminate threats such as email spam, viruses
8) Enforce filtering policies to block access to websites containing
malware
9) Provide protection for VPNs, WANs, and WLANs
◉ Open Systems Interconnection (OSI) model. Answer: a seven-layer
architecture for defining how data is transmitted from computer to
computer in a network, from the physical connection to the network
to the applications that users run. It also standardizes interactions
between network computers exchanging information.
APSTNDP
, 7) Application - Mediates between software applications and other
layers of network services
6) Presentation - Formats, encrypts, and compresses data
5) Session - Coordinates and manages user connections
4) Transport - Ensures that data are transferred reliably in the
correct sequence
3) Network - Translates network addresses/routes data form sender
to receiver
2) Data Link - Divides data into frames that can be transmitted by
the physical layer
1) Physical - Manages signals among network systems
◉ Transmission Control Protocol/Internet Protocol (TCP/IP).
Answer: - Protocol that connects computers to the Internet
- Tells computers how to exchange information over the Internet
- Operates at Level 4 (transport) & 3 (network) of OSI Model
◉ Encapsulation. Answer: Process of adding addressing information
to data as they are transmitted down the OSI stack
◉ concentric rings. Answer: A.K.A. Nested layering
TESTED QUESTIONS
◉ Standards. Answer: Interpret policies in specific situations
◉ Procedures. Answer: Provide details on how to comply with
policies and standards
◉ Guidelines. Answer: Provide general guidance on issues; not
requirements but strongly recommended
◉ Defense in Depth. Answer: Layering defenses to provide added
protection
Types:
1) Concentric rings
2) Overlapping Redundancy
3) Segregation
◉ Security perimeter. Answer: A well-defined boundary between the
organization and the outside world. Cybersecurity emphasizes the
system-centric model (placing controls at the network level)
,◉ Internet Perimeter. Answer: Secure access to the Internet for
enterprise employees and guest users, regardless of location.
It should...
1) Route traffic between enterprise & internet
2) Prevent executable files from being transferred through email
attachments/browsing
3) Monitor internal/external network ports
4) Detect & block traffic from infected internal end point
5) Control user traffic bound for the internet
6) Identify and block malicious packets
7) Eliminate threats such as email spam, viruses
8) Enforce filtering policies to block access to websites containing
malware
9) Provide protection for VPNs, WANs, and WLANs
◉ Open Systems Interconnection (OSI) model. Answer: a seven-layer
architecture for defining how data is transmitted from computer to
computer in a network, from the physical connection to the network
to the applications that users run. It also standardizes interactions
between network computers exchanging information.
APSTNDP
, 7) Application - Mediates between software applications and other
layers of network services
6) Presentation - Formats, encrypts, and compresses data
5) Session - Coordinates and manages user connections
4) Transport - Ensures that data are transferred reliably in the
correct sequence
3) Network - Translates network addresses/routes data form sender
to receiver
2) Data Link - Divides data into frames that can be transmitted by
the physical layer
1) Physical - Manages signals among network systems
◉ Transmission Control Protocol/Internet Protocol (TCP/IP).
Answer: - Protocol that connects computers to the Internet
- Tells computers how to exchange information over the Internet
- Operates at Level 4 (transport) & 3 (network) of OSI Model
◉ Encapsulation. Answer: Process of adding addressing information
to data as they are transmitted down the OSI stack
◉ concentric rings. Answer: A.K.A. Nested layering
