Exam 7: Telecommunications the Internet and Wireless Technology
How does packet switching work?
Packet switching is a method of slicing digital messages into parcels called packets,sending the packets along different communication paths as they become available,and then reassembling the packets once they arrive at their destinations.Packet switching makes much more efficient use of the communications capacity of a network than did circuit-switching.In packet-switched networks,messages are first broken down into small fixed bundles of data called packets.The packets include information for directing the packet to the right address and for checking transmission errors along with the data.The packets are transmitted over various communications channels using routers,each packet traveling independently.Packets of data originating at one source will be routed through many different paths and networks before being reassembled into the original message when they reach their destinations.
A network that covers entire geographical regions is most commonly referred to as a(n)
D
The Application layer is responsible for providing the Application layer with communication and packet services.
The _________________________ is responsible for providing the Application layer with communication and packet services.
________ combine the functionality of a cell phone with the computing of a laptop.
What is Web 3.0,and how do you think Web 3.0 developments could impact businesses?
The Internet layer is responsible for placing packets on and receiving them from the network medium,which could be any networking technology.
How are RFID systems used in inventory control and supply chain management?
What are wireless sensor networks? How do they work and what are they used for?
The device that acts as a connection point between computers and can filter and forward data to a specified destination is called a(n)
A network that spans a city,and sometimes its major suburbs as well,is called a
In a client/server network,a network server provides every connected client with an address so it can be found by others on the network.
Which of the following statements is not true about search engines?
Which signal types are represented by a continuous waveform?
TCP/IP was developed in the 1960s to enable university scientists to locate other computers on the Internet.
Two computers using TCP/IP can communicate even if they are based on different hardware and software platforms.
You have been hired by a small new Web design firm to set up a network for its single office location.The network is primarily needed for exchanging files,accessing and managing beta Web sites on their Web server,and connecting to the Internet.The firm hires many freelancers who come into the office on an ad-hoc basis and it does not have a lot of money to spend on infrastructure.What type of network will you recommend?
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