Which of the following broadband technologies is the fastest
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Broadband provides the fastest connections today, making it the most common type of residential internet service. Broadband (short for “broad bandwidth”) is a type of high-speed internet connection that is always “on.” There are several types of connections including DSL, fiber, wireless, and 4G/5G LTE. Show Broadband was introduced in the late 1990’s, replacing some older types of internet connections such as dial-up, which used the audible frequency of telephone lines. Because broadband uses a separate frequency than your voice line, it’s always connected, making it easier than ever to stay online. Broadband internet provides fast connections, allowing users to quickly upload, stream and download large files. Let’s take a
closer look at how this technology works. How does broadband internet work?Types of broadband internetThere are four primary types of broadband connections available today. CenturyLink provides DSL, fiber and 4G, varied by location. DSL (Digital Subscriber Line) was one of the earliest forms of broadband to be introduced and is still a common service today. DSL uses a single pair of copper wires in a telephone line for high-speed data connection. The DSL signal uses different frequencies from the voice lines, making it possible to use your internet and phone at the same time. Using a modem to bring the connection from your telephone line to your computer allows for DSL to get more “bandwidth,” which increases speeds. DSL speeds can be as high as 100 Mbps. Pair bonding is an option for some DSL connections that generally provides double the bandwidth as compared to single line DSL service. With typical DSL service, there is only one pair of copper wires being used to deliver internet service. With pair bonding, two copper wire pairs (four individual wires) are used, thereby doubling your internet speed. When using pair bonding, speeds can reach up to 140 Mpbs. Pair bonding services are subject to availability within CenturyLink’s internet coverage. Fiber internet uses a special type of fiber-optic cable, which allows data to be sent as pulses of light over thousands of tiny, transparent fiber strands. Because light is the fastest way to transmit data, fiber-optic internet is incredibly fast, and results in a high-quality and reliable connection. It can provide connections of up to 1 Gbps, and this is expected to get even higher over time. Fiber is an expanding technology that will soon become more widely avalible. Cable internet is about as common as DSL. It uses the same coaxial cables that transmits TV service to carry a high-speed internet connection. Using a modem, you can connect to these cable lines and enjoy a high-speed, uninterrupted data connection. Cable internet speeds can be up to 940 Mbps for downloading and up to 50 Mbps for uploading. Wireless internet is available via satellite. It’s most common in rural areas lacking the infrastructure of wired internet (DSL, cable or fiber) and is typically provided by wireless phone companies. Satellite internet transmits data directly from a satellite orbiting the Earth. It’s not as fast or consistent as other types of broadband internet, but it can be used anywhere in the world. Satellite speeds for downloading are usually between 25 Mbps to 100 Mbps, with an average of 25 Mbps for uploading. What's the difference between broadband and WiFi?Broadband is a type of high-speed internet connection, while WiFi refers to an in-home wireless connection. Once you have broadband service, it's converted to a wireless signal in your home from a modem to a wireless router, allowing you to connect multiple devices wirelessly to the internet. How do I get a broadband internet connection?
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Terms in this set (134)What is a complex system that takes on nearly complete responsibility for a task eliminating the need for human input, verification, or decision making? autonomous system Hardware or software designed to guard against unauthorized access to a computer network is known as a(n) firewall. Networks that use electrical lines are sometimes called ________. power-line networks The most common form of computer crime is theft. TRUE Downloadable software extensions that add new features to a browser are known as ________. plug-ins Asynchronous communication is when the sender and recipient c. do not have to be online at the same time A scheme called ________ is designed to capture sensitive financial information from the person visiting a Web site. phishing All of the following statements are true EXCEPT: Wireless networks are faster than wired networks. T3 connections transmit data at this speed: 45 Mbps A ________ stores data and software that can then be shared by several users. file server Adobe Reader and Adobe Acrobat display PDF documents. TRUE One example of a synchronous method of communication is... instant messaging. The following are all examples of broadband access EXCEPT ________. Dial-Up What is the name of the storage technology that enables multiple hard disks to operate as single logical units? RAID All of the following are essential components of every computer system EXCEPT: Networks The majority of computer crimes are committed by Company Employees When a business can legally copy software to all of the computers they own, the company has a ________ license. Site The primary difference between a LAN and a WAN is the geographical area Internet connections that work through the same network of coaxial cables that deliver television signals work through a ________ modem. Cable Which of the following domains is restricted? .edu Examples of broadband technologies include all of the following EXCEPT: Dial-Up TCP/IP protocols define how information can be transferred between machines and how machines on the network can be identified with ________ addresses. unique What markup language includes all of the features of HTML and includes customized tags that give information more meaning? XML According to the FBI, how much identity theft begins with email? Two-thirds 2/3 All of the following are top-level domains EXCEPT ________. .bus What is the major light principle fiberoptic cables are based on? Total Reflection Each unique Internet addresses had an applet. FALSE The Web was built with push technology. FALSE Bluetooth technology can reach a range of 10 meters. TRUE When customers of a Web site are unable to access it due to a bombardment of fake traffic, it is known as denial-of-service attack Worms execute until there is a lack of free memory or disk space Many phone companies offer ________, a technology for bringing broadband connections to homes and small businesses by sharing the copper telephone lines that carry voice calls. DSL Combining other people's works in to one Web page is known as a podcast. TRUE A(n) ________ converts a message from digital to analog or from analog to digital. Modem A single fiber-optic cable can replace ________ copper telephone cables. 10,000 Smart cards and biometrics are two ways companies may add physical security to computer systems. TRUE A voice message must be converted to a(n) ________ signal so it can be stored on a computer's hard drive. Digital The Code Red worm attacked Microsoft server software Yahoo!, MSN, and AOL/Netscape are examples of ________. Portals Data traveling from a home computer to the Internet is called Upstream Traffic This IP address doesn't change every day: static IP address A ________ stores data and software that can then be shared by several users. file server After an HTML document is completed, it needs to be uploaded onto a ________ server before it's visible on the Web. Web The Telecommunications Act of 1996 prohibits employers from listening to their employees' phone conversations. TRUE Over ________ were spent by businesses and government to repair problems in regard to Y2K. 100 billion dollars Each individual computer and networked peripheral attached to a LAN is a Node Computer forensics is a form of computer crime. FALSE In 1999, the Melissa virus was a widely publicized Email Virus Which of the following is NOT a true statement about IPv6? IPv6 is supported on all machines Networks that use electrical lines are sometimes called ________. power-line networks Most computer systems rely solely on ________ for authentication. passwords A(n) ________ server maintains look-up tables that map domain names to IP addresses. DNS The World Wide Web is a distributed browsing and searching system originally developed at ________. CERN ________ uses high-bandwidth connections to communicate multimedia over wireless networks, but lacks true broadband speed. 3G An autonomous system can assume almost complete responsibility for a task and minimizes risk because of its absolute reliability. FALSE Large organizations may operate a ________ network to connect its LANs and transmit data at more than 1 gigabit per second. Backbone A newer PC will likely have an Ethernet ________ on the main circuit board so it can directly connect to an Ethernet network. Port Bandwidth is measured in bits. TRUE Information can be recovered from a hard drive even after file have been deleted. TRUE The name for harassment on the Internet is cyberstalking A hard-wired Internet connection through a LAN is called a(n) ________ connection. dedicated Broadband connections include all of the following EXCEPT: telephone modems If one attempts to send a message to an email address which does not exist, it will return to you, or ________. Bounce MMORPGs are online role-playing games involving hundreds of thousands of players Bill Gates was the original developer of the World Wide Web. FALSE The first part of a URL refers to the ________ that must be used to access information, for example http. Protocol The system of satellites used to determine any position on the Earth is known as GPS Net neutrality is the principle that Internet access should be free from restrictions related to the type of communication taking place on it. TRUE The typical computer criminal is a(n) trusted employee with no criminal record A ________ is a network of computers in a close physical area. LAN _______ is another term for millions of bits. Megabits A DSL connection can share signals with a telephone line. TRUE Of the following, which one is NOT a way to protect yourself from identity theft? Make all online purchases with a debit card When radio or TV broadcasts are streaming at the same time they are happening, it is called Real-Time TCP/IP was developed as an experiment in ________, connecting different types of networks and computer systems. internetworking In the Web address www.bbc.co.uk, "uk" is a(n) ________. Country Code To prevent loss of data during power failures, use a(n) UPS ________ refers to the quantity of data that can be transmitted through a communication medium in a given amount of time. Bandwidth All e-mail addresses consist of a user name, followed by the @ sign, followed by a host address. TRUE Every host computer on the Internet has a(n) ________. unique IP address A ________ stores data and software that can then be shared by several users. File Server Bluetooth technology can reach a range of 10 meters. TRUE T1 and T3 connections are considered ________ connections. Direct _______ are hardware devices or software programs that direct messages as they travel between networks. Routers A ________ is a code embedded as a one-pixel graphics file in an email message which notifies the sender that the message was opened. Web Bug All of these are suggestions for safe computing EXCEPT: Pirate Software The .gov domain might be used by ________. US Senate Information from the Internet to the subscriber, called ________ traffic, sometimes approaches speeds similar to a T1. Downstream A content-management system allows users to edit Web sites without having to deal with HTML and FTP. TRUE To register a business name and create a unique URL, a business pays a fee that goes to ________. domain name registry company In a client/server model, a client program ________. asks for information A(n) ________ network is often used to set up a temporary communications system that requires no centralized router. Mesh ________ is the measurement of things such as fingerprints and retinal scans used for security access. Biometrics A(n) ________ cable uses light waves to transmit multimedia and voice data. fiber-optic ________ is defined as any crime completed through the use of computer technology. Computer Crime Experts debate whether Internet addiction is a true addiction or simply a compulsion. TRUE In the 1970s, Xerox developed ________, which continues to be a popular networking architecture. Ethernet In what decade was ARPANET developed? 1960s Which of the following is a popular scripting language for programming Web servers? PHP Which type of virus uses computer hosts to reproduce itself? Worm The Internet is controlled by ________. no one in particular Another name for the original Ethernet standard is ________. 10BASE-T Ethernet A public key is only available to the user originating a message. FALSE T1 connections transmit data at this speed: 1.5 Mbps Placing a phone call pretending to be someone else, in order to trick someone into doing something is also known as Spoofing Using a PC to copy software or data from a server, is known as Downloading What is a coaxial cable made of? Mostly copper and aluminum The Digital Millennium Act of 1998 allows users copying music CD content for personal use, but not DVD content. TRUE RSS-reading applications which periodically visit Web sites, examine the feeds, and display new content are known as ________. Aggregators The digital divide separates people in the world with access to technology and digital information from those who do not. TRUE The most widely used data recovery technique is making regular backups. TRUE The latest version of the Internet Protocol is IPv9. FALSE The more secure an authentication system gets, the more __________ it becomes. Inconvenient The protocol used to transfer Web pages is ________.
http Which historical macro virus sent emails out to the first 50 names of a user's Outlook address book if they opened an email from an unknown sender? Melissa ________ is a secure electronic "tunnel" through the Internet that prevents unauthorized access or eavesdropping. VPN The fastest Ethernet devices today follow the ________ standard. Gigabit Ethernet Software programs that close potential security breaches in an operating system or application are known as Security Patches "Cracker" is the correct term for the term "hacker" we use today. TRUE Which of the following is an example of social engineering? Spoofing Remote access means that a(n) user is connecting to a network through a phone line, television cable, or wireless link ________ is a radio-based wireless standard which provides Wi-Fi style access with approximately 70 Mbps speeds to a 25-square mile area. WiMAX When the term "hacker" came to be in the sixties, it was meant for evil programmers. FALSE The backbone of the Internet is made up of physical connections between specific locations? TRUE A personal area network is possible because of the wireless technology known as Bluetooth A Web server receives incoming mail, stores it, and provides it to the email client program when requested. FALSE Most email messages are junk email, also known as SPAM Using deception to get individuals to reveal sensitive information is also known as a(n) ________ attack. social engineering What is the name of an application program that gathers user information and sends it to someone through the Internet? Spybot From the ground, a GPS ________ interacts with signals from a satellite to determine its position. Reciever Web authoring software includes all of the following EXCEPT ________. Adobe Acrobat Most Web-based email systems use ________ to retrieve mail and store the messages in a folder on a remote mail server. POP All of the following are advantages of using a computer network EXCEPT that it promotes independence so users have exclusive control over their own data and applications. When you visit certain Web sites, spyware may be automatically downloaded. This is called a drive-by download Sets with similar termsDigital Planet: Tomorrows Technology and You ch. 8…63 terms WRJOIV IT exam98 terms andria_garza CMPE 3 Final54 terms dakota_marquel ass120 terms aashywashy Sets found in the same folderPersonal Computers47 terms miiszxuy3nx3 Personal Computers Chapter 857 terms miiszxuy3nx3 Intro to Computing Final Exam Review288 terms hpinocci IS EXAM 3208 terms hcleeee Verified questionsCOMPUTER SCIENCE Let the rotational closure of language A be $R C(A)=\{y x | x y \in A\}$. a. Show that for any language A, we have RC(A)=RC(RC(A)). b. Show that the class of regular languages is closed under rotational closure. Verified answer
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