Network Security Essentials Study
Guide with 100% Correct Solutions
LAN - ANSWER Local Area Network where multiple PCs are wired to a home router.
WLAN - ANSWER Wireless Local Area Network that connects devices and printers
through a central access point without cabling.
Type 1 Hypervisor - ANSWER Also known as bare-metal hypervisors, loaded directly on
hardware to abstract it to the virtualization layer, commonly used on servers.
Type 2 Hypervisor - ANSWER An application loaded on an operating system that
abstracts the virtualization layer through the host OS, commonly used on
personal computers.
Cloud Computing - ANSWER Outsourced and hosted computing environment
delivering IT services via a network.
IaaS - ANSWER Infrastructure as a Service focusing on data center facilities and
infrastructure, providing entire machines like private servers or VPS.
PaaS - ANSWER Platform as a Service focusing on application development on
any desired platform utilizing cloud computing.
SaaS - ANSWER Software as a Service focusing on application delivery, examples include
Gmail, Google Drive, and MS OneDrive.
, Public Cloud - ANSWER Cloud infrastructure owned and operated by a company
but available for general public use.
Private Cloud - ANSWER Cloud infrastructure operated by an organization and
available only to its members.
Community Cloud - ANSWER Cloud infrastructure offering exclusive access
to infrastructure and computing resources for two or more organizations.
Hybrid Cloud - ANSWER Cloud infrastructure combining at least one private and one
public cloud, commonly used for scalability.
Spoofing - ANSWER An exploit where attackers falsify data to appear as a
trustworthy entity.
ARP Poisoning - ANSWER An attack where attackers associate their MAC address with
the IP address of another host.
Denial-of-Service - ANSWER An attack that disrupts network services to users
by overwhelming the network or server with traffic.
SQL Injection - ANSWER An attack where attackers input SQL code into web forms to
gain access to the database.
Firewall - ANSWER Uses reverse proxy system to scan incoming packets for malicious
behavior. Utilizes web-application firewall with rules to filter dangerous requests.
Enables NX-bit (no-execute) functionality on physical computer.
Guide with 100% Correct Solutions
LAN - ANSWER Local Area Network where multiple PCs are wired to a home router.
WLAN - ANSWER Wireless Local Area Network that connects devices and printers
through a central access point without cabling.
Type 1 Hypervisor - ANSWER Also known as bare-metal hypervisors, loaded directly on
hardware to abstract it to the virtualization layer, commonly used on servers.
Type 2 Hypervisor - ANSWER An application loaded on an operating system that
abstracts the virtualization layer through the host OS, commonly used on
personal computers.
Cloud Computing - ANSWER Outsourced and hosted computing environment
delivering IT services via a network.
IaaS - ANSWER Infrastructure as a Service focusing on data center facilities and
infrastructure, providing entire machines like private servers or VPS.
PaaS - ANSWER Platform as a Service focusing on application development on
any desired platform utilizing cloud computing.
SaaS - ANSWER Software as a Service focusing on application delivery, examples include
Gmail, Google Drive, and MS OneDrive.
, Public Cloud - ANSWER Cloud infrastructure owned and operated by a company
but available for general public use.
Private Cloud - ANSWER Cloud infrastructure operated by an organization and
available only to its members.
Community Cloud - ANSWER Cloud infrastructure offering exclusive access
to infrastructure and computing resources for two or more organizations.
Hybrid Cloud - ANSWER Cloud infrastructure combining at least one private and one
public cloud, commonly used for scalability.
Spoofing - ANSWER An exploit where attackers falsify data to appear as a
trustworthy entity.
ARP Poisoning - ANSWER An attack where attackers associate their MAC address with
the IP address of another host.
Denial-of-Service - ANSWER An attack that disrupts network services to users
by overwhelming the network or server with traffic.
SQL Injection - ANSWER An attack where attackers input SQL code into web forms to
gain access to the database.
Firewall - ANSWER Uses reverse proxy system to scan incoming packets for malicious
behavior. Utilizes web-application firewall with rules to filter dangerous requests.
Enables NX-bit (no-execute) functionality on physical computer.
