Essentials Exam 90 Questions with Verified
Answers
What are the three major functions of a computer operating system? - CORRECT
ANSWER File, memory, and process management
An operating system (OS), often called a platform, is a collection of computer
programs that work together to manage hardware and software to ensure that
they are working properly. The platform is the groundwork for all system software
and performs jobs like allocating memory, administering input and output, and
managing files.
What is the difference between a router, a switch, a hub, and a server? - CORRECT
ANSWER Routers forward information throughout a network, switches filter the
information to the correct part of a network, and hubs are a common point of
connection on a network. A server houses information in a central location, and
clients access that information through a connection to the server.
What are the three forms data come in? - CORRECT ANSWER When data are
collected, they come in three forms (unstructured, structured, and semi-
structured), but the most common form is unstructured.
Which method of sharing data requires the use of temporary memory? - CORRECT
ANSWER Cut and paste
,On a day-to-day basis, what is the major focus and responsibility of a chief
technology officer? - CORRECT ANSWER Managing the IT group and designing the
IT architecture
What is the title of the person in the organization who is directly responsible for
the setup and operation of the organization's networks, including hardware and
software? - CORRECT ANSWER A network administrator
What is the distinguishing feature that differentiates data from information? -
CORRECT ANSWER Data that have been given context become information.
When using extract, transform, and load (ETL), what is done during the
"transform" step? - CORRECT ANSWER The data are normalized and structured.
Which strategy includes purchasing paid advertisements that appear at the top of
results pages in a web browser? - CORRECT ANSWER Search engine marketing
Which level of management gets the most detailed reports directly from the
transaction processing system? - CORRECT ANSWER Supervisors
A large online retailer uses a decision support system (DSS) to develop scenarios
for the executive team to evaluate.
What is the primary source of the data used by this DSS? - CORRECT ANSWER The
transaction processing system (TPS)
How have online web development tools benefitted small businesses? - CORRECT
ANSWER Increased user control of the organization's website
, Wildland fires are often difficult to map and assess while they are active, and this
creates difficulties for wildland firefighters.
Which IoT solution can be used to address this problem? - CORRECT ANSWER Wi-
Fi-connected drones with GPS and camera
What is the approach that a business would use to facilitate communication when
the business has employees that are in different locations and telecommute for
work? - CORRECT ANSWER Real-time communication
Which type of computer runs a network operating system (NOS)? - CORRECT
ANSWER A client computer on a network
A large company has decided to invest in new IT systems, including a new server.
Which IT professional should be tasked with setting up and maintaining the
server? - CORRECT ANSWER Computer System Administrator
A small business has a single network that allows every employee to connect
through a central server when they are in the company's main office. What type
of network is the business using? - CORRECT ANSWER Local area network (LAN)
What is the most important qualification that a Chief Information Officer (CIO)
must possess? - CORRECT ANSWER Business and leadership experience
What is the purpose of a network switch? - CORRECT ANSWER Switches filter the
information to the correct part of a network