Introduction to IT - D322 Questions 100% Solved!!

What is CIA and why is it important? -ANSWER Confidentiality, Integrity, and Availability (CIA) of data and services The CIA framework serves to outline the goals and objectives of the security program and helps organizations defend against threats What is the role/purpose of a System Administrator? -ANSWER Maintains all aspects of the system including hardware, software, and programming. What is the role/purpose of a Database Administrator? -ANSWER Focuses on the design, development, and support of database management systems (DBMSs). What is the role/purpose of a Web Administrator? -ANSWER Installs, configures, maintains, secures, and troubleshoots web severs. What is the role/purpose of a Network Administrator? -ANSWER responsibility of working with routers and switches In charge of all aspects of the computer network Which administrator role/purpose is responsible for administering hardware within your work environment? -ANSWER Systems administrators are also responsible for upgrading system components and installing and troubleshooting hardware and software. Also known as Sysadmins, Systems Administrators are also responsible for developing system security policies and procedures. What is Data vs. Information? -ANSWER data is basically a collection of unorganized characters that do not convey meaning. Information is data that is given context and meaning. Ex. Numbers are GPA. GPA coupled with name gives meaning. What is Information Systems vs. Information Technology? -ANSWER The difference between information systems and information technology is that information system incorporates the technology, people, and processes involved with information. Information technology is the design and implementation of information, or data, within the information system. What are the characteristics of quality data? -ANSWER Relevance - the data being used must apply directly to the decision being made Timely - data must be efficient and must be provided in a timely manner Thorough - the data must be complete Accurate - data should be captured only once, where possible and should be captured as close to the point of activity as possible. Reliable - data should reflect stable and consistent data collection processes across collections points and over time What is the purpose of I/O Subsystems? -ANSWER The I/O (Input/output) subsystem of a computer provides communication between the central system and the outside environment. It handles all the input- output operations of the computer system. Peripheral Devices. Input or output devices that are connected to computer are called peripheral devices. What is IPSO - Input, Process, Output, Storage? -ANSWER Input: Raw data is entered by the user. Processing: Raw data is organized or structured for usefulness. Output: Information is output so user can see results. Storage: Processed information is stored for permanent record. What is Hardware vs. Software? -ANSWER When it comes to computers, the hardware is the physical and tangible part, like the monitor, keyboard, and speakers. Software is the programs and operating systems that need to be installed. What is a Network? -ANSWER A collection of computers and resources connected by various media so that they can communicate with each other. What are End-Users? -ANSWER the person who actually uses a particular product. Identify the ingredients of a computer system. -ANSWER CPU, Memory and Storage, Peripheral Devices What is the purpose of a CPU? -ANSWER Executes programs' instructions and commands various components in the computer. Referred to as the "chip". What are the four parts of a computer? -ANSWER Motherboard, cpu, Hard Drives and RAM What is the purpose of RAM? -ANSWER Stands for Random Access Memory. It temporarily stores data before it is processed and sent to your screen or printer. It is volatile (means data or information stored disappears when the computer is turned off or loses power). You can choose the amount of RAM your computer has. What is the purpose of Expansion Slots vs. Motherboard Components? -ANSWER The purpose of adding an expansion card or board to a computer's motherboard is to add or expand some sort of functionality to the computer that it did not have before. Expansion cards are a way to upgrade a computer. The motherboard provides basic functionality but the expansion card offers additional or enhanced ports. What are the types of Memory (RAM/ROM) - volatile vs. nonvolatile? -ANSWER RAM, which stands for random access memory, and ROM, which stands for read-only memory, are both present in your computer. RAM is volatile memory that temporarily stores the files you are working on. ROM is non-volatile memory that permanently stores instructions for your computer. Volatile memory is the type of memory in which data is lost as it is powered-off. Non-volatile memory is the type of memory in which data remains stored even if it is powered-off. What is the purpose of the BIOS? -ANSWER BIOS stands for Basic Input Output System;Typically stored in ROM chip on the motherboard.Is software not hardware, ("basic" operating system that runs when the computer is first turned on).Runs tests of memory and the CPU and initializes hardware components so that the actual Operating System can be loaded from the hard disk.Can't choose the amount or contents. What is the purpose of a hard drive? -ANSWER Provide Permanent storage that is used to hold data and programs What is the purpose of a motherboard? -ANSWER The main circuit board of a computer; it holds and allows communication between many electronic system components, such as the CPU and memory, and provides connectors for other peripherals. Module 7: The History of the Computer. -ANSWER 1st Generation of Computers Vacuum tubes, relay switches, the need to program in machine language 2nd Generation of Computers Transistor components, magnetic core memory, smaller size, easier to program, disk drives and drums, called mainframe computers 3rd Generation of Computers Silicon chips (known as ICs - integrated circuits), reduced cost, called mini computers, networks introduced via dumb terminals 4th Generation of Computers Single chip processor, called microcomputer, first personal computer, rudimentary computer graphics, home use What is a Local vs. a Remote network? -ANSWER Local files reside on your system, while remote files reside on a file server or at another node with which you communicate using a physical network, for example, Ethernet, token-ring, or phone lines. What is Telnet and SSH (secure shell)? -ANSWER Telnet is the standard TCP/IP protocol for virtual terminal service. It enables you to establish a connection to a remote system in such a manner that it appears as a local system. SSH or Secure Shell is a program to log into another computer over a network to execute commands in a remote machine. What is a Wireless Access Point (WAP)? -ANSWER