401 Computer Science

24 July 2022
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45 test answers

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question
Which of the following is not a characteristic of packet switching? A) Packets travel independently of each other. B) Packets are routed through many different paths. C) Packet switching requires point-to-point circuits. D) Packets include data for checking transmission errors.
answer
C
question
WSNs are designed for A) connecting multiple wireless computing devices. B) monitoring the physical environment. C) increasing the reach of Wi-Fi networks. D) tracking the movement of goods in a supply chain.
answer
B
question
All of the following are physical components of an RFID system except A) bar code. B) antenna. C) radio transmitters. D) tags.
answer
A
question
Which digital cellular standard is used widely throughout the world except the United States? A) GSM B) CDMA C) WLAN D) LTD
answer
A
question
The concept of a future Web in which it is commonplace for everyday objects to be connected, controlled or monitored over the Internet is called A) the Web of things. B) the Semantic Web. C) Internet2. D) a 3-D Web.
answer
A
question
In the domain name "http://books.azimuth-interactive.com", which element is the second-level domain? A) books B) azimuth-interactive C) com D) none; there is no second-level domain in this name
answer
B
question
Which of the following services enables logging on to one computer system and working on another? A) FTP B) World Wide Web C) newsgroups D) telnet
answer
D
question
Which of the following statements about RFID is not true? A) RFIDs transmit only over a short range. B) RFIDs use an antenna to transmit data. C) Microchips embedded in RFIDs are used to store data. D) RFIDs require line-of-sight contact to be read.
answer
D
question
________ integrate(s) disparate channels for voice communications, data communications, instant messaging, e-mail, and electronic conferencing into a single experience. A) Wireless networks B) Intranets C) Virtual private networks D) Unified communications
answer
D
question
Together, a protocol prefix, a domain name, a directory path, and a document name, are called a(n) A) uniform resource locator. B) IP address. C) third-level domain. D) root domain.
answer
A
question
The process of employing techniques to help a Web site achieve a higher ranking with the major search engines is called A) VPN. B) IAB. C) SEM. D) SEO.
answer
D
question
Which of the following statements is not true about search engines? A) They are arguably the Internet's "killer app." B) They have solved the problem of how users instantly find information on the Internet. C) They are monetized almost exclusively by search engine marketing. D) There are hundreds of search engines vying for user attention, with no clear leader having yet emerged.
answer
D
question
Which of the following is the first generation of cellular systems suitable for watching videos? A) 2G B) 2.5G C) 3G D) 4G
answer
D
question
4G networks are also known as ________ networks. A) GSM B) CDMA C) LTD D) T-Mobile
answer
C
question
Which process is used to protect transmitted data in a VPN? A) tunneling B) PPP C) VOIP D) packet-switching
answer
A
question
The 802.11 set of standards is known as A) WLAN. B) WSN. C) Wi-Fi. D) WiMax.
answer
C
question
The WiMax standard can transmit up to a distance of approximately A) 30 meters. B) 500 meters. C) 30 miles. D) 5 miles.
answer
C
question
Passive RFID tags A) have their own power source. B) have a range of several feet. C) enable data to be rewritten and modified. D) are used in automated toll-collection systems.
answer
B
question
Which of the following is not one of the current main areas of growth in mobile e-commerce? A) sales of financial services B) retail sales at the top mobile companies C) sales of digital content D) sales of apps
answer
A
question
Which of the following is an example of a geosocial mobile service? A) Kickstarter.com B) Foursquare C) Shopkick D) Facebook
answer
B
question
How are the Internet and e-commerce causing severe disruption to the existing advertising business model? A) Ties between customer and businesses are being rethought. B) Technology players such as Yahoo! seek to dominate online advertising and expand into offline ad brokerage. C) New methods of advertising, such as blog advertising, are emerging. D) The market entry costs for online advertising services are extremely low.
answer
B
question
Which of the following is not a recent development in e-commerce? A) Mobile e-commerce takes off. B) Social networking sites become a new platform for e-commerce. C) The music recording industry is disrupted as music creation and distribution become decentralized. D) Online entertainment business models surge.
answer
C
question
Which feature of Internet technology has had the most effect in the Internet's rapid spread across the globe? A) ubiquity B) global reach C) universal standards D) social technology
answer
C
question
The lowered costs of information storage, processing, and communication, along with the improvement of data quality, has resulted in which unique quality of e-commerce? A) information density B) richness C) customization D) interactivity
answer
A
question
The effort required to locate a suitable product is called A) price discrimination. B) search costs. C) menu costs. D) shopping costs.
answer
B
question
Compared to digital markets, traditional markets have A) lower search costs. B) stronger network effects. C) higher delayed gratification effects. D) higher transaction costs.
answer
D
question
Which of the following Internet business models does Amazon.com use? A) content provider B) portal C) market creator D) e-tailer
answer
D
question
Which of the following best describes why small world theory is important to e-commerce? A) The products bought online by one individual will influence purchases by others. B) The greater the number of people using your product, the more valuable it becomes. C) You do not need to attract a large consumer base to become profitable. D) Global products create a global community.
answer
A
question
Which of the following best illustrates the sales revenue model? A) eBay receives a small fee from a seller if a seller is successful in selling an item. B) Epinions receives a fee after steering a customer to a participating Web site where he or she makes a purchase. C) Flickr provides basic services for free, but charges a premium for advanced services. D) Apple accepts micropayments for single music track downloads.
answer
D
question
In which of the following revenue models does a Web site charge a fee for access to some or all of its offerings on a continual, regular basis? A) subscription B) free/freemium C) transaction fee D) sales
answer
A
question
Which of the following best illustrates the affiliate revenue model? A) eBay receives a small fee from a seller if a seller is successful in selling an item. B) Epinions receives a fee after steering a customer to a participating Web site where he or she makes a purchase. C) Flickr provides basic services for free, but charges a premium for advanced services. D) Apple accepts micropayments for single music track downloads.
answer
B
question
Which of the following best illustrates the transaction fee revenue model? A) eBay receives a small fee from a seller if a seller is successful in selling an item. B) Epinions receives a fee after steering a customer to a participating Web site where he or she makes a purchase. C) Flickr provides basic services for free, but charges a premium for advanced services. D) Apple accepts micropayments for single music track downloads.
answer
A
question
________ describes the concept that a large group of people is better at making correct decisions than a single person. A) The wisdom of crowds B) Outsourcing C) Crowdsourcing D) Social graphing
answer
A
question
Netflix's public announcement of a reward for a technology solution to its movie recommendation system is an example of A) prediction markets. B) behavioral targeting. C) long-tail marketing. D) crowdsourcing.
answer
D
question
Exposing an individual to ads that are chosen and based on the recorded and analyzed online behavior of the individual is referred to as A) clickstream advertising. B) behavioral targeting. C) online profiling. D) long tail marketing.
answer
B
question
Which of the following was the leading online advertising format in 2012? A) display ads B) e-mail C) classifieds D) search engine
answer
D
question
Which of the following statements about B2B commerce is not true? A) Eighty percent of online B2B e-commerce is still based on EDI. B) B2B e-commerce represents approximately three-quarters of the overall B2B marketplace. C) B2B e-commerce only includes commercial transactions between firms. D) B2B e-commerce revenues in 2012 were over $4 trillion.
answer
B
question
E-hubs are more ________ than private industrial networks. A) transaction-oriented B) collaborative C) independent D) supply-chain oriented
answer
A
question
A mapping of a person's significant online, personal relationships is called a social A) Web. B) graph. C) community. D) map.
answer
B
question
Goods that are involved in the actual production process are referred to as A) raw materials. B) direct goods. C) purchasing goods. D) indirect goods.
answer
B
question
Which of the following statements about m-commerce is not true? A) In 2012, m-commerce represented less than 10 percent of all e-commerce. B) M-commerce is the fastest growing form of e-commerce. C) M-commerce annual revenues are approximately $30 billion. D) In 2012, the top-grossing category of m-commerce was e-book sales.
answer
D
question
You are building an e-commerce Web site that will sell e-books and are looking for a hosted solution. Which of the following functionalities is least important for your business goals? A) site tracking system B) inventory management C) digital catalog D) customer database
answer
B
question
You are planning the requirements for a site tracking and reporting system for your company Web site. Which of the following information requirements would not be essential for this function? A) number of unique visitors B) pages visited C) products purchased D) secure credit card clearing
answer
D
question
Which of the following is the least costly way to build a Web site? A) Outsource the Web site development to overseas vendors. B) Use a hosted solution and pre-built templates. C) Build your site yourself from scratch using existing software. D) Use a site-building package.
answer
B
question
You are advising an accounting firm that wants to establish its first Web site. Approximately how much of the Web site budget should you assign to purchasing software? A) 10 percent B) 25 percent C) 50 percent D) none, as no software will need to be purchased
answer
A