MIS Chapter 7
__________ are very simple devices that connect network components, sending a packet of data to all other connected devices.
Hubs
Twisted copper telephone wire, coaxial copper cable, fiber-optic cable, and media for wireless transmission are all __________.
physical transmission media
The traditional telephone system, mobile cellular communication, wireless local area networks, videoconferencing systems, a corporate Web site, intranets, and extranets are all components of __________.
the networking infrastructure for a large company
Code Division Multiple Access (CDMA)
transmits over several frequencies and occupies the entire spectrum and was first developed by the military during World War II
A hub is often used as a connection point between networked computers. Which of the following is very similar, but contains more advanced capabilities/intelligence?
A switch
What is the difference between a switch and a hub?
A switch has more intelligence than a hub and can filter and forward data to a destination on the network.
Which of the following is true of Global System for Mobile Communications (GSM)?
GSM's strength is its international roaming capability. less effcient that CDMA
The measurement ____________ is equivalent to one cycle of the telecommunication medium.
Hertz
__________ integrate(s) disparate channels for voice communications, data communications, instant messaging, email, and electronic conferencing into a single experience where users can seamlessly switch back and forth between different communication modes.
Unified communications
Today's broadband in households allows for connections of up to 15 ________________ per second.
million bits
Bandwidth transmission speed is measured in ______________.
hertz
If you want your cell phone to transmit up to 100 megabits/second downloads, you would need to upgrade to a(n) _____________ network.
4G networks have much higher speeds: 100 megabits/second download and 50 megabits upload speed, with more than enough capacity for watching high-definition video on your smartphone.
If you are purchasing a router that can provide wireless Wi-Fi at up to 11 Mbps (but not over), you would need to purchase an __________ router.
802.11b
Shopping _______ use intelligent agent software to help people filter and discover information about potential products.
BOTS use intelligent agent software for searching the Internet for shopping information
Which of the following is a common wireless networking standard that is generally used for PANs?
Bluetooth enables a variety of devices, including cell phones, smartphones, wireless keyboards and mice, PCs, and printers, to interact wirelessly with each other within a small, 30-foot (10-meter) area.
The popular networking standard 802.15 is also known as ________________.
Bluetooth is the popular name for the 802.15 wireless networking standard, which is useful for creating small personal area networks.
Twisted pair wire, also known as ____________, is the most common 10 Mbps LAN cable on the market today.
CAT 5
T or F IP handles data moving between computers, and TCP packages data at each end of the transmission.
False
If you are renting a home while going to college and would like to connect to the Internet, you will need to contact a(n)______________ such as EarthLink, NetZero, or AT&T to connect.
ISP
Which of the following statements about RFID is FALSE?
In inventory control and supply chain management, RFID systems capture and manage less detailed information about items in warehouses or in production than barcoding systems.
Which of the following is a new network backed by universities, government, and private companies in more than 100 countries?
Internet2
A _____ is great for a city to set up for emergency and public use since it is larger than many types of network configurations.
MAN
Instead of sending an entire file in one big chunk across the Internet, __________ is used which dices the file up into little pieces that are sent independently across the communications paths, and then reassembled when they reach their destination.
Packet switching
What type of system provides technology for tracking the movement of goods throughout a supply chain?
RFID systems use small tags with embedded microchips with data about an item and its location.
__________ provide(s) a powerful technology for tracking the movement of goods using tiny tags with embedded data about an item and its location.
Radio frequency identification (RFID) systems
Which of the following best describes radio frequency identification (RFID) systems?
Radio frequency identification (RFID) systems are technology that uses tiny tags with embedded microchips containing data about an item and its location to transmit short-distance radio signals to special readers that then pass the data on to a computer for processing
__________ are leased, dedicated lines suitable for businesses or government agencies requiring high-speed guaranteed service levels.
T1 and T3 lines They are mostly used to provide internet access to homes and small business
Which of the following statements is true of client/server computing?
The server sets the rules of communication for the network
It is possible to use a special secure, encrypted network, a _____, which works on the public network, like the Internet.
The virtual private network, VPN, is much cheaper than other secure networks.
As a part of a certain communication technology, an IP network provides a single voice-data infrastructure for both telecommunications and computing services, so companies no longer have to maintain separate networks or provide support services and personnel for each type of network. Which communication technology does the scenario describe?
Voice over IP (VoIP)
Because it is difficult to lay cable or set up numerous Wi-Fi networks in rural areas of the U.S., ______ becomes a more viable option as it has a range of approximately 30 miles.
WeMax; uses microwaves for transmission
One promising prediction for the future is that _____ will bring digital information, in all forms, together into a single, meaningful, experience.
Web 3.0
A large corporation managing a network over a global area would be considered a ________.
Wide area network
__________ span broad geographical distances—entire regions, states, continents, or the entire globe.
Wide area networks (WANs)
__________ is/are networks of interconnected wireless devices with built-in processing, storage, and radio frequency sensors and antennas that are embedded into the physical environment to provide measurements of many points over large spaces.
Wireless sensor networks (WSNs)
__________ is/are valuable in areas such as monitoring environmental changes, monitoring traffic or military activity, protecting property, efficiently operating and managing machinery and vehicles, monitoring supply chain management, or detecting biological, chemical, or radiological material.
Wireless sensor networks (WSNs)
The four-part numeric address indicating a unique computer location on the Internet is called __________.
an Internet Protocol (IP) address
Bluetooth differs from WiMax in that Bluetooth __________.
can only link up to eight devices within a 10-meter area
The Domain Name System (DNS) __________.
converts domain names to IP addresses
__________ consists only of computers, a connection medium, network operating system software, and either a hub or a switch.
A basic network
Daniel wants to establish a broadband connection between his computer and the local ISP. He decides to set up a connection that can operate over his existing telephone lines to carry voice, data, and video at transmission rates ranging from 385 Kbps to 40 Mbps. Which of the following will best help Daniel establish such a connection?
A digital subscriber line (DSL)
What type of communications processor directs packets of data through different networks, ensuring that data gets to the correct address?
Router
Because computers use digital signals and transmission media such as cable lines use analog signals, a(n) ________ is needed to convert the signal forms
modern
Microsoft Windows Server and Linux are both considered examples of ____________.
network operating systems
3G networks differ from 4G networks in that 3G networks __________.
offer fair transmission speeds for browsing the Web and online shopping, but are too slow for videos
Bluetooth is the popular name for the 802.15 wireless networking standard, which is useful for creating small __________.
personal area networks (PANs)
