EXAM STUDY GUIDE 2026/2027
ACCURATE QUESTIONS WITH CORRECT
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1. "Ordinary" OS Files - ANSWER ✔ An ordinary file is a file on the system
that contains data, text, or program instructions. In this tutorial, you look at
working with ordinary files.
2. Advantages of Objects - ANSWER ✔ Reduced Maintenance, Real-World
Modeling, Improved Reliability, High Code Re-usability.
3. Apache HTTP Server - ANSWER ✔ The most common Web server today,
controlling 46 percent of the market.
4. Characteristics of Data Quality - ANSWER ✔ Accuracy, accessibility,
comprehensiveness, consistency, timelessness, precision, and relevancy.
5. Computer Based Information System - ANSWER ✔ A complementary
network of computer-based hardware or software used to collect, filter and
process data or other relevant information.
6. Data Cleanup - ANSWER ✔ The process of detecting and correcting (or
removing) corrupt or inaccurate records from a record set, table, or database.
7. Data Dictionary - ANSWER ✔ A centralized repository of information
about data such as meaning, relationships to other data, origin, usage, and
format.
,8. Data Flow Diagram - ANSWER ✔ A graphical representation of the
"flow" of data through an information system, modeling its process aspects.
Often they are a preliminary step used to create an overview of the system
which can later be elaborated.
9. Data Modeling - ANSWER ✔ The process of creating a data model for an
information system by applying formal data modeling techniques.
10.Data Redundancy - ANSWER ✔ Data redundancy occurs in database
systems which have a field that is repeated in two or more tables.
11.Deterrence Controls - ANSWER ✔ Safeguards or countermeasures to
avoid, counteract or minimize security risks relating to personal property, or
computer software.
12.File Management - ANSWER ✔ The manipulation of documents and data
in files on a computer.
13.What is the Scrum methodology? - ANSWER ✔ Scrum is an Agile
framework for managing complex projects, emphasizing iterative progress
and team collaboration.
14.What are the consequences of poor IT project management? - ANSWER ✔
Consequences include budget overruns, missed deadlines, and project
failures.
15.What is the project life cycle? - ANSWER ✔ The project life cycle
includes initiation, planning, execution, monitoring, and closure.
16.What tools are used for project management? - ANSWER ✔ Tools include
kanban boards, user stories, and spreadsheets for tracking progress and tasks.
17.What is the importance of IT infrastructure? - ANSWER ✔ IT
infrastructure is crucial for supporting business processes and enabling
efficient operations.
18.What are components of IT infrastructure? - ANSWER ✔ Components
include hardware, software, and network components.
,19.How do cloud and virtual components contribute to IT infrastructure? -
ANSWER ✔ They provide scalable resources and flexibility for businesses
to adapt to changing needs.
20.What is the business value of secure IT infrastructure? - ANSWER ✔
Secure IT infrastructure protects sensitive data and ensures business
continuity.
21.What are the benefits of cloud-based architecture? - ANSWER ✔ Benefits
include cost savings, scalability, and improved collaboration.
22.What are network topologies? - ANSWER ✔ Network topologies describe
the arrangement of different elements in a computer network, such as mesh,
star, and bus.
23.What are layers of the OSI and TCP/IP model? - ANSWER ✔ The OSI
model has seven layers: physical, data link, network, transport, session,
presentation, and application. The TCP/IP model has four layers: link,
internet, transport, and application.
24.What services contribute to business IT infrastructure? - ANSWER ✔
Services include computing platforms, telecommunications services, and
data management services.
25.How can common IT security vulnerabilities be avoided? - ANSWER ✔
Common vulnerabilities can be avoided through proper authentication,
authorization, and access control measures.
26.What are the effects of automation on businesses? - ANSWER ✔
Automation can increase efficiency, reduce costs, and improve accuracy in
business operations.
27.What are uses of artificial intelligence in business? - ANSWER ✔ AI can
be used for customer support, automation of tasks, and gaining insights from
data.
, 28.What are core characteristics of blockchain technology? - ANSWER ✔
Core characteristics include decentralization, transparency, and
immutability.
29.Virtualization - ANSWER ✔ Running multiple OSes on one physical
machine.
30.Green IT - ANSWER ✔ Eco-friendly computing practices (energy-
efficient hardware, recycling).
31.System - ANSWER ✔ A set of interrelated components working together
to accomplish a goal.
32.Information System (IS) - ANSWER ✔ Collects, processes, stores, and
distributes data to support decision-making.
33.Fiber to the Home (FTTH) - ANSWER ✔ the connection of a home to the
Internet through optical fiber technology
34.feasibility studies - ANSWER ✔ A series of studies conducted to
determine if a proposed information system can be built and whether or not
it will benefit the business
35.fault tolerance - ANSWER ✔ The ability of a system to continue operation
even if a component fails.
36.extranet - ANSWER ✔ a network, part of which is the Internet, whose
purpose is to facilitate communication and trade between an organization
and its business partners
37.expert system (ES) - ANSWER ✔ A computer program that mimics the
decision process of a human expert in providing a solution to a problem.
Current ones deal with problems and diagnostics in narrow domains.
consists of a knowledge base, an inference engine, and a dialog management
module.
38.European Article Number (EAN) - ANSWER ✔ a European standard of
product code, similar to UPC but containing more information