(Sections 3 and 4)
D386 HARDWARE AND OPERATING SYSTEMS ESSENTIALS TEST
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3&4
Multi-Factor Authentication MFA
Is a collection of tools, techniques, and good practices to
decrease vulnerability in firmware, systems, infrastructure,
System Hardening applications, and other areas of technology. Is the process of
securing a computer device by means of reducing its attack
and
strengthening its defenses against threats and
vulnerabilities.
Server HArdening Which system hardening technique involves securing a data-
based system's ports, data, permissions, and functions?
Computer Worm Which malware program can replicate quickly and spread
from one computer to another by itself?
Star Toplogy Which type of topology has all nodes connected to a central
device?
A Hub Amplifies network signals and connects network components
or nodes. Is considered passive in terms of how it connects
to other devices.
Uses routing protocols to route packets from one input port
Router to an output port. Can be programmed to make decisions to
send packets from an input port to an output port based on
IP addresses.
Address Resolution Protocol Which protocol is responsible for internet protocol (IP)
(ARP) address to physical address translation in the TCP/IP suite?
Which network security measure deals with encrypting the
Confidentiality data as it traverses the network? This security measure
ensures that data is protected and encrypted from
unauthorized access.
Server Which network device offers the capability of centralizing the
control of resources and compartmentalizing files for
improved reliability?
Non-Functional Requirement NFR
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A set of specifications that describe the system's operation
Non-Function Requirements capabilities and
constraints. These are basically the requirements that
outline how well it operates, including things like, speed,
security, reliability, and data integrity.
Functional Requirements Define what a software product must do: its features and
functions.
The following are key types of what:
1) Performance
2) Scalability
3) Portability
4) Compatability
NFRs 5) Reliability
6) Maintainability
7) Availability
8) Security
9) Usability
How fast a software system (or its component) responds to
Performance certain users' actions
under a certain workload. It's the core type of
nonfunctional requirements no system can do without.
Assesses the highest workloads under which the system
Scalability will still meet performance and usability requirements.
Refers to the capacity of the system to handle growth in
terms of both data volume and user load.
Determines if a system or its elements can work in
different environments. It usually includes hardware,
Portability software, or other usage platform specifications. In other
words, it establishes how well actions performed via one
platform are run on another. Also, it prescribes how well
system elements may be accessed and may interact
from two different environments.
defines how a system can coexist and interact with
Compatibility
another system in the same environment.
specifies how likely the system or its element would run
Reliability without a failure for a given period of time under
predefined conditions. Traditionally, this probability is
expressed in percentages.
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