Chapter 6 T/f Answers – Flashcards
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The term "pooled" can be used to describe the cloud as different organizations use the cloud to share hardware through virtualization.
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TRUE
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Cloud-based hosting is the ideal choice for organizations that are required by law to have physical control over their data.
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FALSE
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The term "cloud" is used to refer to the elastic leasing of pooled computer resources over the Internet.
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One of the advantages of cloud-based hosting, as long as it is with reputable organizations, is the best-of-breed security and disaster recovery.
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TRUE
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A computer network is a collection of computers that communicate with one another over transmission lines or wirelessly
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A computer network between Seattle and Philadelphia is made possible through a LAN.
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A university would use a WAN to connect its campuses in two cities.
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With a WAN, an organization is allowed to place communications lines wherever it wants, because all lines reside on its premises.
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An Internet is a network of networks that connects LANs, WANs, and other internets.
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An intranet is a private internet that is used exclusively within an organization.
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TRUE
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A switch detects the speed that a given device can handle and communicates with it at that speed.
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TRUE
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Bluetooth is a common wired protocol designed to transmit data over long distances.
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IEEE LAN protocols always start with the numbers 802.
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The World Wide Web sponsors committees that create and publish protocols and other standards.
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Wired LAN connections use a protocol standard called Ethernet to communicate
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Wired LAN connections use the IEEE 802.3 protocol, whereas wireless LAN connections use the IEEE 802.11 protocol.
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TRUE
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The abbreviations k, M, and G have the same meaning for computer memory as they have for communication speeds.
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Communication speeds are expressed in bytes, whereas memory sizes are expressed in bits.
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The committee that addresses LAN standards is called the ICANN.
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When a person connects to the Internet, he or she is actually connecting to an Internet Service Provider.
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An ISP provides a customer with a legitimate Internet address.
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TRUE
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As DSL signals interfere with telephone signals, DSL data transmission and telephone conversations cannot occur simultaneously.
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Digital subscriber lines use their own protocols for data transmission.
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TRUE
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Cable modems modulate in such a way that their signals interfere with TV signals.
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FALSE
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A cable line is the second type of LAN connection.
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FALSE
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TCP/IP Protocol Architecture is a scheme of protocol types arranged in four layers.
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"https" is the secure version of "http."
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"smtp" is the protocol used between browsers and Web servers.
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FTP is the protocol used mainly for email transmissions
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Unlike FTP, HTTP does not have a secure version.
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FALSE
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SOAP is a protocol for requesting web services and for sending responses to web service requests.
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TRUE
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Both WSDLs and SOAP messages are coded in XML.
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TRUE
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ICANN controls the assignment of both public and private IP addresses.
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If one had a private IP address for one's computer, every time one moved it, the Internet would have to update its addressing mechanisms to route traffic to one's new location.
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A domain name is a worldwide-unique name that is affiliated with a public IP address.
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The owner of a domain name can change the affiliated IP addresses at its discretion.
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TRUE
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A URL consists of a protocol followed by a domain name or public IP address.
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TRUE
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In three-tier architecture, the user tier consists of computers that run Web servers and process application programs.
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Web servers run on a server-tier computer and manage traffic by sending and receiving Web pages to and from clients.
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A content delivery network (CDN) is a system of both hardware and software that stores user data in many different geographical locations and makes that data available on demand.
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TRUE
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An organization that provides software as a service provides only operating systems and application programs
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The most basic cloud offering is platform as a service (PaaS), which is the cloud hosting of a bare server computer or data storage.
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Salesforce.com provides hardware and programs for customer and sales tracking. This is an example of a cloud vendor who provides software as a service.
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TRUE
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Amazon EC2 and Amazon S3 are both examples of platform as a service.
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Small companies usually lack the technical expertise and management to venture into loading operating systems onto servers acquired via the cloud.
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TRUE
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Google Drive can be classified as a PaaS.
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To ensure security, VPN client software decrypts the original message so that its contents are protected from snooping.
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Remote action systems save time and travel expense and make the skills and abilities of an expert available in places where he or she is not physically located.
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TRUE
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Teleaction increases the value of local mediocrity.
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FALSE
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Telesurgery increases the value of robotics in the field of medical science.
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TRUE
