Upgrade to remove ads Show
Only ₩37,125/year
Terms in this set (50)digital Communication signals represented in a binary format are said to be _________. bit Each zero and one signal represents a _________. computer Which of the following is NOT an analog device? analog Signals such as sound and temperature, which continuously vary in strength and quality, are said to be modem The ________ is a device that converts digital computer signals into analog signals so that they can be sent over a telephone line. modem A person sending a document over a phone line by converting digital signals to analog signals uses a ________. network A ________ is a system of interconnected computers, telephones, or communications devices that can communicate and share resources. WAN A network that covers a wide geographical area is called a _________. MAN A network that covers a city or a suburb is called a ________. HAN A ________ uses wired, cable, or wireless connections to link a household's digital devices. peer to peer Networks are structured in to principles ways: client/server and _________. peer-to-peer A network that operates without relying on a server is the _______ network. file A computer that acts like a disk drive, storing the programs and data files shared by users on LAN is the ________ server. intranet If an organization's internal private network uses the same infrastructure and standards of the Internet, then the private network is a(n) _________. company intranet, company extranet, company LAN A virtual private network may include _________. protocol A _______ is the set of rules that govern the exchange of data between hardware and/or software components in a communications network. host A mainframe computer that controls a large network is called the _________ computer. node Any device that is attached to a network is referred to as a _________. packet A _________ is a fixed-length block of data or transmission. hub A common connection point of devices on a network is called a _________. Gateway To create larger networks, a bridge connects the same types of networks, and a _________ connects dissimilar networks. backbone In an organization, all computer networks are connected to the Internet by a _________. router A special computer that directs communicating messages among several connected networks is a _________. Gateway Dissimilar networks communicate via an interface called a _______. hub Which of these is NOT a network topology? ring What kind of topology (layout) is used by a network that connects all computers and communications devices in a continuous loop? bus In the ______ network topology, communications devices are connected to a single cable with two endpoints. star What kind of topology (layout) is used by a network that connects all its computers and communications devices to a center server? Ethernet _________ is the most common and most widely used LAN technology; it can be used with almost any kind of computer, most microcomputers come with a port for this type of network connection. twisted-pair A communications medium is a channel; there are three types of wired communications media. The one consisting of two strands of insulated copper wire, used by tradition telephone systems, is known as ________. coaxial What wire channel, commonly used for cable TV, consists of an insulated copper wire wrapped in a solid or braided shield placed in an external cover? Ethernet, HomePNA, HomePlug A type of wired communications technology used to connect equipment in a home network is the following: fiber-optic What wired communications medium consists of dozens or hundreds of then strands of glass or plastic? telecommuting; telework _________ is working form home: _______ is working from anywhere. electromagnetic spectrum The _______ is the basis for ALL telecommunications signals bandwidth The ________ is the range of frequencies that a transmission medium (channel) can carry in a particular period of time. WAP What set of rules is used to link nearly all mobile devices to a telecommunications wireless network? virtual office Which of the following is NOT a type of wireless communications media? broadcast radio What form of wireless transmission sends data to an AM or FM receiver? microwave Which of these types of wireless transmission is limited to line-of-sight communications? uplinking Transmitting a signal from a ground station to a satellite is called
geostationary earth orbit The highest level that a satellite can occupy in space is known as _______. GEO GPS uses satellites orbiting at a(n) ________ level; they transmit timed radio signals used to identify earth locations. analog cellphone The _________ is a 1G device that is designed primarily for communications by voice through a system of ground-area cells about 8 miles or less in diameter. Bluetooth Which of the following is NOT a type of long distance wireless two-way communications device? third Broadband technology is also referred to as ________-generation wireless services Wi-Fi What short-distance wireless standard is used to link portable computers and handheld wireless devices so they may communicate at high speeds at distances of 100-228 feet? Bluetooth What short-distance wireless standard is used to link cell phones, PDAs, and computers at distances of up to 30 feet?
denial-of-service A _______ attack disables a computer system or network by making so many requests of it that it overloads it and keeps other users from accessing it. worm A _______ is a program that copies itself repeatedly into a computer's memory or onto a disk drive. Recommended textbook solutions Engineering Electromagnetics8th EditionJohn Buck, William Hayt 483 solutions Introduction to the Theory of Computation3rd EditionMichael Sipser 389 solutions Introduction to Algorithms3rd EditionCharles E. Leiserson, Clifford Stein, Ronald L. Rivest, Thomas H. Cormen 720 solutions
Computer Organization and Design MIPS Edition: The Hardware/Software Interface5th EditionDavid A. Patterson, John L. Hennessy 220 solutions Sets with similar termsChapter 6: Communications, Networks, & Safeguards:…42 terms nim_sui Computing Essentials Ch. 8126 terms magdalena_tigner Chapter 755 terms mtmcc412 Chapter 8 Vocabulary (Understanding Computers)49 terms robmc0521 Sets found in the same folderComputer Information Systems Exam 2147 terms thefoolofspades Chapter 7 Quiz40 terms Brebaby CSIT test #3110 terms egel4191 UIT Chapter 6: Communications, Networks, & Cyberth…20 terms reese_martinez3 Other sets by this creatorBio Final30 terms Myrnagrace_Calip CSIT Chapter 550 terms Myrnagrace_Calip CSIT Chapter 448 terms Myrnagrace_Calip CSIT Chapters 1-3 T/F4 terms Myrnagrace_Calip Verified questions
COMPUTER SCIENCE Design your own linked list class to hold a series of integers. The class should have member functions for appending, inserting, and deleting nodes. Don’t forget to add a destructor that destroys the list. Demonstrate the class with a driver program. Verified answer
COMPUTER SCIENCE A loop that never terminates is called a) busy b) indefinite c) tight d) infinite Verified answer
COMPUTER SCIENCE Under what circumstances would a user be better off using a time-sharing system than a PC or a single-user workstation? Verified answer
COMPUTER SCIENCE Make a list of six security concerns for a bank’s computer system. For each item on your list, state whether this concern relates to physical, human, or operating-system security. Verified answer Other Quizlet setsIT Concepts27 terms andrewnedwidek Intro to Media & Society Final Chapter 1417 terms veronicachakov Chapter 4 Networking22 terms benstauss IT Fnc1 ch637 terms Greggers0696 Related questionsQUESTION when a computer is connected to the internet via an ISP for the first time, it is assigned an IP number that keeps it keeps for the life of the computer 15 answers QUESTION You are reviewing the AWS Shared Responsibility model to present an overview to management on what your company is responsible for in AWS. Which option is a customer responsibility? 5 answers QUESTION Attaches to the same coaxial cable (typically in a residence) that provides television programming. A cable modem can use predetermined frequency ranges to transmit and receive data over that coaxial cable. 2 answers QUESTION SPAs generally result in less data being sent over the network than web applications developed with dynamically generated web pages. (T/F) 2 answers What kind of topology is used by a network that connects all its computers and communications devices to a central server?Bus topology uses a single cable which connects all the included nodes. The main cable acts as a spine for the entire network. One of the computers in the network acts as the computer server. When it has two endpoints, it is known as a linear bus topology.
Which of these types of wireless transmission is limited to line of sight communications?Infrared. Most infrared sources transmit using an LED or laser. The infrared technology that underlies most remote controls only works across a straight, short, unobstructed path between the remote and the device.
Which network topology uses multiple access points to link a series of devices that speak to each other to form a network connection across a large area?The “mesh” topology uses many access points to link a series of devices that communicate to each other to form a network connection across a large area.
What short distance wireless standard is used to link cell phones computers and peripherals at distances of up to about 33 feet?Bluetooth. Bluetooth was developed as a PAN for connecting computers, cell phones, and other devices up to a range of about 30 feet.
|
What kind of topology layout is used by a network that connects all its computers and communications devices to a central server?
zusammenhängende Posts
Urheberrechte © © 2024 ketiadaan Inc.
