Exam (elaborations)
WGU- D322 Intro to IT Exam/119 Questions with Solutions
WGU- D322 Intro to IT Exam/119 Questions with Solutions
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WGU- D322 Intro to IT Exam/119Questions with Solutions
Administration - -An administrator is in charge of some portion of the IT
infrastructure.
-Network administrator - -oversees all aspects of the computer network.
The network administrator's duties include physically laying down cable,
making connections, and working with the network hardware (for instance,
routers and switches).
-Database administrator - -focus on the design, development, and support
of database management systems (DBMSs). Tasks will include installation,
maintenance, performance analysis, and troubleshooting as with the other
administrative areas
-Security administrator - -install, configure, and administer appropriate
firewall security to protect the organization's systems and to work
proactively against such intrusions.
-Web administrator (webmaster) - -also known as a webmaster, but more
precisely referred to as a web server administrator. This role is responsible
for maintaining web storages, which differs from the development of web
storage. Specifically, the web administrator must install, configure, maintain,
secure, and troubleshoot the web server.
-Define Information Technology - -IT is a term used to describe several
aspects: the task of gathering data and processing it into information, the
ability to disseminate information using technology, the technology itself
that permits these tasks, and the collection of people who are in charge of
maintaining the IT infrastructure (the computers, the networks, and the
operating systems). Generically, we will consider IT to be the technology
used in creating, maintaining, and making information accessible. In other
words, IT combines people with computing resources, software, data, and
computer networks
-Information technology - -describes the technology infrastructure that may
support information systems, although Information Technology could also
support many other types of systems (e.g., telecommunications systems).
Information Technology includes hardware, software, networks, and
databases that work together to allow an organization to manage data and
information.
-A computer performs four operations - -IPOS
, Input
Processing
Output
Storage
-Parts of the CPU - -ALU
Control Unit
Registers
-Memory - -SCRAM
DRAM
ROM
-I/O Subsystem - -Input Devices
Output Devices
Storage Devices
-Computer structure - -{CPU (ALU, Control Unit, Registers)
System Bus
Memory(SCRAM, DRAM, ROM)}
I/O Bus
{I/O Subsystem (Input Devices, Output decides, Storage Devices)}
-CPU (Central Processing Unit) - -is the device that not only executes your
programs' instructions, but also commands the various components in the
computer.
-Memory - -stores the program(s) being executed and the data that each
program is using.
short-term and long-term storage.
-I/O subsystem - -subsystem includes all peripheral devices (input, output,
storage, network) where storage consists of the long-term storage devices
(disk drives, tape).
-bus - -is the device that permits information to move between each
component.
-The system unit - -is a core feature of notebooks, tablets, smartphones,
and other types of computers; therefore, it comes in a variety of shapes and
sizes. The system unit contains various components that enable the PC
system to run programs and complete other important functions. Various
different types of computers are likely to have many of the same
components. These include the case, which is a protective covering, internal
bays and slots that grip the internal components, buses, which are the
circuitry and electrical channels that enable communication among the
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