IT Final Study PDF

Question 1 What distinguishes a data collection device (source data automation) from other input devices? Correct! It obtains data directly at the location where the transaction or event takes place. It collects data rather than computer input. It can collect and store much more data in a shorter...

Question 1 What distinguishes a data collection device (source data automation) from other input devices? Correct! It obtains data directly at the location where the transaction or event takes place. It collects data rather than computer input. It can collect and store much more data in a shorter period of time than other input devices. Its reliability is higher than any other input device so it is more suited to high security data capture use scenarios. Question 2 What are the 4 steps in the machine cycle? Correct! fetching, decoding, executing, storing decoding, fetching, executing, controlling storing, executing, registering, cycling arithmetic calculations, comparison, storing, pipelining Question 3 Two thousand bytes is abbreviated as _________. Correct! 2KB Correct Answers 2 KB 2KB Question 4 Which of the following interprets and carries out the basic instructions that operate a computer? compressor control unit Correct! CPU binary device Question 5 Which of the following is a collection of unprocessed items, which can include text, numbers, images, audio, and video? Correct Answer Data Output Information Input Question 6 When your friend turns off her computer, what kind of memory loses its contents? static L1 ROM digital fixed memory when installed on memory modules partial Correct! volatile Question 7 The capability of a CPU to begin processing a new instruction as soon as the previous instruction completes the first stage of the machine cycle is known as ________________. Converging Correct Answer Pipelining Fetching Interfacing Question 8 Steve is the office manager for a small business and is looking for a new scanner for his office. When buying a scanner, Steve needs to make sure that the scanner has a high enough _______, usually measured in the number of dots per inch (dpi), for the business needs of the office. word spacing magnetic resolution Correct! optical resolution image depth Question 9 The term ____ refers to the programs or instructions used to tell the computer hardware what to do. memory Correct Answers SOFTWARE software Software Question 10 Storage media are ______, meaning that the data remains on the media even when the power to the computer or storage device is off. Correct! non-volatile Correct Answers non volatile nonvolatile not volatile non-volatile Question 11 Virtually all personal computers come with a(n) ____ that is used to store most programs and data. Correct! hard drive zip drive external drive floppy drive Question 12 What is the term for an electrical channel within the circuitry of a computer than can transfer 8 bytes of data at a time? 32-bit bus system channel port (8-byte) Correct! 64-bit bus 800 MHz circuit path Question 13 An electronic device, operating under the control of instructions stored in its own memory, that can accept data, process the data according to specified rules, produce results, and store the results for future use is called a __________________. os Correct Answers computer a computer Computer Question 14 Computers were large, expensive, and used a great deal of energy before _______________ were designed. networks electrodes  capacitors Correct! transistors Question 15 Which of the following conveys meaning and is useful to users? Correct! Information Input Output Data Question 16 Storage devices access items in which of the following units of time? petaseconds macroseconds Correct Answer milliseconds nanoseconds Question 17 How many bytes are needed to store the following: T4E&Q7@R 1 Correct Answers eight bytes 8 bytes eight 8 Question 18 Which of the following kinds of devices duplicates data, instructions, and information to improve data reliability? RAN RAS NAS Correct! RAID Question 19 Which of the following is true of SSDs compared to traditional hard disks? SSDs generate more heat. SSDs have lower storage capacities. Correct! SSDs have faster transfer rates. SSDs have a shorter life. Question 20 The smallest unit of data that a digital computer can recognize is _________. Correct! bit Correct Answers bit a Bit Bit BIT a bit Question 21 A(n) ____ drive works with CDs, DVDs, and BDs. flash hard Correct! optical magnetic Question 22 Which of the following determines the number of bits that the computer can transmit at one time? bus diameter bus interpolation Correct! bus width bus circumference Question 23 A ____ is the smallest colorable area on a display device? Correct! pixel Correct Answers PIXEL pixel a pixel Pixel Question 24 What kind of storage saves data in a remote service provider’s data center and is accessible from any computer or mobile device. net Correct! cloud encrypted shared Question 25 Which of the following allows the processor to communicate with peripheral devices? interpolated bus Correct! expansion bus power bus index bus Question 26 Your smartphone allows you to take and store photos, and play and view your digital media. What is this overlap of technologies called? digital assimilation digibridge digital device integration Correct Answer digital device convergence Question 27 A microprocessor that contains circuitry for more than one processing unit is call a _____ processor.  multitasking multiprocessor Correct! multicore multi-cpu Question 28 Often the storage device and storage medium are two separate pieces of hardware (that is, the storage medium is ____). static configurable Correct Answer removable programmable Question 29 When a user types data on a keyboard, what is occurring? Correct Answer The user is using an input device to enter input into the memory of the computer. The user is entering information that will be transferred to the CPU for interpretation and then to storage so that the information will be available when needed. The user is employing an input device (the keyboard) to tell the computer what tasks to perform and how to perform them. The user is issuing a command that is stored in the memory of the computer and then is transformed into input data for use with a program. Question 30 _____________ displays consist of LCD panels that are backlit. ledscreen Correct Answers LED led light emitting diode Question 31 A picosecond is one ________ of a second. quadrillion Correct Answers trillionth one trillionth 1/1,000,000,000,000 Question 32 Two key components of a computer display system are a display device or screen and a(n) ____ card. LCD printer sound Correct! graphics Question 33 The amount of data the CPU can manipulate at one time is _______. bandwidth bus size memory size Correct! word size Question 34 Which of the following is the most common type of volatile memory? Flash memory CMOS ROM Correct! RAM Question 35 ____ consists of nonvolatile memory chips that can be used for storage by the computer or the user. SDRAM RAM Register Correct! Flash memory Question 36 Jane is the office manager for a small business and is looking for a new printer for her office. After doing some research into printers, Jane decides to buy a(n) ____ printer, since they are the standard for business documents and are typically faster and have better quality output than other types of printers. Correct! laser Correct Answers laser Question 37 Which of the following consists of electronic components that store instructions waiting to be executed and data needed by those instructions? The processor The CPU Correct! Memory The control unit Question 38 To Change the Bibliography Style in WORD: Click REFERENCES tab on the ribbon; click the Insert Citation arrow to display predefined documentation styles; select add new source style Click REFERENCES tab on the ribbon; select Manage Sources; select appropriate source from the Master List Click REFERENCES tab on the ribbon; click the Bibliography arrow to display predefined documentation styles; click the desired documentation style Correct Answer Click REFERENCES tab on the ribbon; click the Style arrow to display predefined documentation styles; click the desired documentation style Question 39 ________ is used by the CPU to store data and intermediary results temporarily during processing. Memory Correct! Register RAM ROM Question 40 _____ is high-speed memory that a processor can access more rapidly than memory elsewhere on the motherboard. Correct! Cache RAM ROM Buffer Question 41 If your cousin asks you what devices can be used to record and retrieve data, instructions, and information for future use on a computer, which of the following would you tell him? Hard disks, memory cards, memory Correct Answer USB flash drives, SSDs, hard disks Memory, Blu-ray Disc drives, USB flash drives Scanners, DVD drives, memory cards Question 42 The main circuit board of the system unit is usually called the ___________. Correct! motherboard Correct Answers System Board system board motherboard Motherboard mother board Question 43 ________ is used by the CPU to store data and intermediary results temporarily during processing. ROM Memory Correct! Register RAM Question 44 ______ are used to input data about a person so that the individual’s identity can be verified based on a particular unique physiological characteristic. OMR readers RFID readers Correct! Biometric readers CRM readers Question 45 The physical parts of a computer are collectively referred to as _____________. Correct! hardware Correct Answers hardware HARDWARE Question 46 ASCII and Unicode are used for ____. storing files creating computer chips Correct! coding character data measuring clock speed Question 47 Memory access times can be measured in fractions of a second. When measuring memory access times, which of the following is the fastest?  nanosecond Correct! picosecond microsecond millisecond Question 48 With bitmapped images, the color of each ____ is represented by bits; the more bits used, the better the image quality. vector map Correct! pixel byte Question 49 If a computer advertisement states a computer is " quad-core 3.60GHz", what does that mean? The computer contains almost 4GHz of RAM. Correct Answer The system clock speed is almost 4 billion clock cycles per second. It guarantees the computer runs faster than one that operates at 4 GHz. The CPU in the computer is an Intel processor. Question 50 Eight bits grouped together are collectively referred to as a _______. Correct! byte Correct Answers BYTE a byte byte Byte Question 51 In WORD, which key is used to remove the character before the insertion point? [Enter] [Tab] Correct! [Backspace] [Delete] Question 1 The term __________ refers to the gap between those who have access to information and communications technology and those who do not. digital divergence bit divide Internet divide Correct! digital divide Question 2 The term ___________ refers to the development and use of computers in an environmentally friendly manner by minimizing energy consumption. Correct! green computing Correct Answers Green computing Green Computing green computing GREEN COMPUTING Question 3 In the area of IT issues, _________ relates to the responsibility for the authenticity, fidelity and correctness of information. data integrity Correct Answers Accuracy accuracy Question 4 The ongoing battle to stay current with changing technology creates ______ for many individuals. excitement knowledge sense of accomplishment Correct! stress Question 5 The concept that all parties who have a role in producing, selling, or using a product also have a role in properly disposing of it is known as _________________. Computer responsibility Good stewardship  Product disposal Correct! Product stewardship Question 6 A student who copies and pastes information from various online documents to create her research paper without crediting the original authors is committing ____________________. Correct! plagiarism Correct Answers PLAGIARISM Plagiarism plagiarism Question 7 Discarded computer components such as circuit boards, chips, monitors and keyboards are known as ______. computer waste e-discards Correct Answer e-trash technical waste Question 1 The part of the OS which remains in memory while the computer is running is known as the __________. Correct! kernel Correct Answers Kernel KERNEL kernel Question 2 Jennifer is the network administrator at a medium-sized company. One of her responsibilities is to purchase network devices to maintain the company network. Jennifer would like to purchase a new ____, which would be used to connect the company’s LAN and the Internet.  USB port Correct! router hub bridge Question 3 A program that reduces the size of files, typically to be stored or transmitted more efficiently is called _______. File extension Correct! File compression File deleting File development Question 4 A(n) ____________________ is a private network, such as a company LAN, that is designed to be used by an organization’s employees and is set up like the Internet. Correct! intranet Correct Answers intranet Intranet Question 5 ​A computer network is a collection of _____. Correct! ​​systems and other hardware devices that are connected so users can share hardware, software, and data as well as communicate with each other electronically programs that perform tasks that users are directly interested in, which includes operating systems and any program that supports application software ​documents called Web pages available through the Internet related fields in a data organization that can be stored, sorted, and queried Question 6 Which of the following kinds of software consists of the programs that control or maintain the operations of a computer and its devices? application program management Correct! system Question 7 A ____ is a prewritten formula that is built into Excel. calculation task feature Correct! function Question 8 In the context of networks, a communication __________ refers to a set of rules for efficiently transmitting data from one network node to another.​ Correct! protocol Correct Answers protocols protocol Protocol Protocols PROTOCOL Question 9 Which of the following formulas contains an absolute cell reference? =B4 =$B4 =B$4 Correct Answer =$B$4 Question 10 With which of the following do users interact with menus and visual images such as icons, buttons, and other objects to issue commands? menu-driven interface performance-monitor interface command-line interface Correct! graphical user interface (GUI) Question 11 ​Why is a fragmented disk slower than one that is defragmented? A fragmented disk contains programs that were deleted using Windows Explorer. A fragmented disk has no index. A fragmented disk contains temporary Internet files and unused program files that need to be deleted. Correct! A fragmented disk has many files stored in noncontiguous sectors. Question 12 ____ are earth-based stations that can transmit microwave signals directly to each other over distances of up to about 30 miles. RFID stations Satellite stations Wi-Fi stations Correct! Microwave stations Question 13 ____ is a networking standard for very short-range wireless connections; the devices are automatically connected once they get within the allowable range. Wi-Fi IrDA xMax Correct! Bluetooth Question 14 You have just been hired by the IT department for a local company. Your first assignment is to set up a network with multiple connections between network devices. The company needs to ensure that even if one device on the network fails or if the line of connection fails, the network should function, assuming an alternate path is available. Which of the following network topologies do you suggest? Star network Correct! Mesh network Counter area network Bus network Question 15 A formula using the _____ cell reference B4 instructs Excel to adjust the cell reference as it copies it to the destination area. invalid mix Correct! relative absolute Question 16 Mike creates a graph on his computer using a spreadsheet application. He uses the mouse as the peripheral device with the computer. Which of the following serves as an intermediary between application programs and the computer's hardware that allows Mike to complete his work? Hard drive ​Input device Correct! Operating system ​Buffer Question 17 Excel's ____ function adds all of the numbers in a range of cells. ADD MAX Correct! SUM MIN Question 18 A(n) _________ is a networking cable that contains hundreds of thin, transparent filaments over which lasers transmit data as light. Correct! fiber-optic cable twisted-pair cable coaxial cable packet-switched cable Question 19 The type of system software that acts as the master controller for all activities that take place within a computer system is a(n)___. Correct! operating system Correct Answers OS Operating System operating system Question 20 Which of the following kinds of operating systems allow only one user to run one program or app at a time? single user/single function single user/single indexing Correct! single user/single tasking single user/single throttle Question 21 Which of the following is a difference between installed software and cloud software? Offline edits made to an installed software cannot be stored in the computer, whereas offline edits made to a cloud software is stored in a network. ​ hanges can be made to an installed software only when the device is offline, whereas changes C can be made to a cloud software only when the device is online. Installed software is run directly from the Internet, whereas cloud software is preinstalled on the device. Correct! I​nstalled software must be installed on a device before it is run, whereas cloud software is run directly from the Internet. Question 22 On a network, which protocol is responsible for dividing files into chunks, adding headers containing information for reassembling packets in their original order, and error checking?​ Correct! TCP IFD UDP ​FTP Question 23 Which of the following is the data transfer rate equivalent to 5 billion bits per second? 5 Mbps 5 GB 5 Bps Correct! 5 Gbps Question 24 Small programs called ____ are used to communicate with peripheral devices, such as monitors, printers, portable storage devices, and keyboards. Correct! drivers managers interfaces utilities Question 25 Which of the following is the process of starting or restarting a computer or mobile device? launching loading keying Correct! booting Question 26 Filenames typically include a ____ at the end of the filename. Correct! ​file extension file subname file subscript file attachment Question 27 ____ networks use a central device to connect each device directly to the network. Ring Bus Correct! Star Mesh Question 28 George is the network administrator at a medium-sized company. One of his responsibilities is to purchase network devices to maintain the company network. George realizes that to improve network performance, he needs to buy and install a ______ which identifies the device on the network for which the data is intended and sends the data to that device only. bus node bridge Correct! switch Question 29 The physical ____________________ of a computer network indicates how the devices in the network are arranged. Correct! topology Correct Answers Topology topology Layout layout Question 30 Which protocol is typically used with LANs and can be used in conjunction with twisted-pair, coaxial, or fiber-optic cabling. 80xx2.11 Wi-Fi Token Ring Correct! Ethernet Question 31 ____ refers to the ability of an operating system to have more than one program open at one time. Polyprogramming Multiprogramming Multidimensional Correct! Multitasking Question 32 Which of the following provides the mobile user with a secure connection to the company network server? Correct! VPN XPN TPN SPN Question 33 With ____, data is sent one bit at a time, one after the other along a single path. digital transmission Correct! serial transmission wireless transmission parallel transmission Question 34 In this kind of memory, the operating system allocates a portion of a storage medium, usually the hard disk or a USB flash drive, to function as additional RAM. What kind of memory is this?  performance managed Correct! virtual device