A ___________ is similar to an intranet in that it uses Internet technologies, but is developed for users outside the organization - ANSWER Extranet
In the Internet model, the application layer corresponds to the ____
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A ___________ is similar to an intranet in that it uses Internet technologies, but is developed for users outside the organization - ANSWER Extranet
In the Internet model, the application layer corresponds to the ________, layer(s) s of the OSI model - ANSWER session, presentation and application
Which of the following is true about ISO - ANSWER -It makes technical recommendations about data communications interfaces
-Its name stands for International Organization for Standardization
-It is based in Geneva, Switzerland
-It is one of the most important standards-making bodies
-All of the above!!!
The three stages of the de juro standardization process are ______________________ - ANSWER specification, identification of choices and acceptance
At the transport layer in the Internet model, TCP is responsible for breaking large files received from the application layer into smaller packets and opening a connection to a server for transferring the packets - ANSWER True
Which is not a function of the physical layer: - ANSWER providing error-free transmission of data
According to John Chambers, CEO of Cisco (a leading networking technology company), the information age is the second Industrial Revolution - ANSWER True
Telecommunications is the transmission of voice and video as well as data and implies transmitting a longer distance than in a data communication network - ANSWER True
Which of the following is not an application layer standard? - ANSWER T1
A local area network is - ANSWER a group of personal computers or terminals located in the same general area and connected by a common cable (communication circuit) so they can exchange information
Due to recent advances in high speed communication networks, the information lag, or the time it takes for information to be disseminated around the world, has been significantly shortened - ANSWER True
The primary reason for networking standards is to: - ANSWER ensure that hardware and software produced by different vendors can work together
Which of the following is not an important future trend in communication and networking? - ANSWER development of online batch systems
The network layer is responsible for routing messages from the source computer to the destination computer - ANSWER True
Which of the following is a term used to group together the physical and data link layers? - ANSWER Hardware layers
Which of the following is not a function of the data link layer? - ANSWER specifying the type of connection, and the electrical signals, radio waves, or light pulses that pass through it
One perspective of data communications and networking as stated in the textbook, examines the management of networking technologies, including security, network design, and managing the network on a day-to-day basis and long term basis - ANSWER True
A backbone network is - ANSWER a high speed central network that connects other networks in a distance spanning up to several miles
In which layer of the Internet model would the HTTP standard be used? - ANSWER application
The application layer is the seventh layer of the Internet model and provides the end user's access to the network - ANSWER False
The _________ layer is responsible for routing of messages from the sender to the final destination - ANSWER network layer
Data communication standards enable each layer in the sending computer to communicate with its corresponding layer in the receiving computer - ANSWER True
The function of the file server is to - ANSWER Correct store data and software programs that can be used by client computers on the network
Which layer of the OSI model is responsible for ensuring that all packets sent are received by the destination station by dealing with end-to-end issues? - ANSWER transport Layer
The American National Standards Institute (ANSI) - ANSWER is the coordinating organization for the United States' national system of standards
Which of the following is not true about de juro standards? - ANSWER They are always developed before de facto standards.
A(n) _____________ is a set of rules that determine what a layer would do and provides a clearly defined set of messages that software at the layer needs to understand - ANSWER protocol
___________ is an orderly close to a dialogue between end users - ANSWER Session termination
A(n) _________ is a LAN that uses the same technologies as the Internet but is provided to invited users outside the organization who access it over the Internet - ANSWER extranet
Which standards body is responsible for the development of local area network (LAN) standards? - ANSWER IEEE
In a host-based system with a mainframe, upgrades to the host are _____________ - ANSWER Lumpy
Which of the following is not a general function by any application program? - ANSWER application access storage
With a client-based network, one fundamental problem is that: - ANSWER all data on the server must travel to the client for processing
_________ is an application program function that deals with storing and retrieving data - ANSWER data storage
The standard protocol for communication between a Web browser and a Web server is the web protocol - ANSWER False
____________ is not an important middleware standard - ANSWER Asynchronous Transfer Mode (ATM)
Scalability refers to the ability to increase or decrease the capacity of the computing infrastructure in response to changing capacity needs - ANSWER True
In the three tier architecture the software on the client computer is responsible for____________ - ANSWER presentation logic
Cloud computing is now available on the client side (i.e. the desktop) - ANSWER True
An N-tiered architecture - ANSWER is generally more "scalable" than a three-tiered architecture
Which of the following is not a user agent package? - ANSWER Microsoft Word
To use the Web, each client computer requires a data link layer software package called a Web browser - ANSWER False
________ is the presentation of information to the user and the acceptance of the user's commands - ANSWER presentation logic
To get a page from the Web, a user must type in a URL, which stands for: - ANSWER Uniform Resource Locator
As the demand for more and more network applications grow; host-based computing becomes the best solution - ANSWER False
A "thin client" approach places most of the application logic on the client - ANSWER False
In a client-server network, _________ gets software from different vendors to work together - ANSWER middleware
The acronym, MIME, refers to: - ANSWER multipurpose internet mail extension
The protocol that makes it possible for a Macintosh web browser to be able to retrieve a Web page from a Microsoft Web server is called _____________________ - ANSWER Hypertext Transfer Protocol
There are optional and required parts of an HTTP request. They are: - ANSWER request line, request header, request body
The ________________ cloud deployment model provides the highest levels of control, privacy and security - ANSWER private
With the "thin client" architecture, when an application changes, only the _________ with the application logic needs to be updated - ANSWER server
A(n) __________ is the way in which the functions of the application layer software are spread among the clients and servers in the network - ANSWER application architecture
The World Wide Web was conceived at University of Utah as part of the development of the Internet - ANSWER False
Host-based and client-based networks are similar in that the client computer performs most of the work - ANSWER False
A ________ is a group of computers linked together so that they act as one computer - ANSWER server farm
IMAP (Internet Message Access Protocol): - ANSWER permits an e-mail message to remain stored on the mail server even after they have been read by a client computer
Web-based e-mail like Hotmail is an example of three-tier client-server architecture that provides access to e-mail messages. - ANSWER True
The four general functions of any application program are: data storage, data access logic, application logic and presentation logic - ANSWER True
An application program function is __________, or the processing required to access data - ANSWER data access logic
A server farm is a group of computers that are linked together so they act as a one computer - ANSWER True
The earliest data communications networks were client-server networks - ANSWER False
One of the most frequently used Telnet applications is - ANSWER PuTTY
The two functions of middleware are to: 1) provide a standard way of communicating that can translate between software from different vendors, and 2) manage the message transfer between clients and servers so that clients do not need to 'know' which server contains the application's data - ANSWER True
The idea for a special hypertext network, called the World Wide Web, was conceived of by: - ANSWER Tim Berners-Lee at the European Laboratory for Particle Physics (CERN) in 1989
With the two-tier client-server architecture, the server is responsible for the ________ logic - ANSWER data access
A request header for an HTTP request starts with a command, such as GET, and ends with the HTTP version number that the browser understands - ANSWER False
______________, or the algorithms or business logic programmed into the application, can be simple or complex depending on the application - ANSWER application logic
Marc Andreessen led a team that developed the first graphical Web browser, which was called: - ANSWER Mosaic
One disadvantage of the ____________ architecture is that places a greater load on the network - ANSWER n-tier
Time division multiplexing is more efficient that frequency division multiplexing because the guardbands used in the frequency division multiplexing or not needed. - ANSWER True
Radio, microwave and satellite are all examples of guided media. - ANSWER True
The earliest type of fiber optic systems were: - ANSWER Multimode
The _____________ of a circuit determines a circuit's capacity. - ANSWER bandwidth
____________ refers to changing the shape of the sound wave in different ways to represent a 1 or a 0. - ANSWER modulation
Nonreturn to zero is a type of unipolar signaling - ANSWER False
Another term for the weakening of a signal over distance is: - ANSWER attenuation
The room that contains the cable termination points and the distribution frames is referred to as - ANSWER telecommunications closet
When sending four bits at a time using frequency modulation, the number of different frequency levels that would be needed would be _______. - ANSWER 16
_________ is the basic physical layout of the circuit. - ANSWER circuit configuration
____________ refers to the transmission characteristics of the circuit. - ANSWER logical circuit
In a multipoint circuit configuration, each computer can use the circuit at the same time. - ANSWER False
Baud rate is the number of bits transmitted per second. - ANSWER False
Ethernet, a common LAN technology, uses Manchester encoding. - ANSWER True
Frequency division multiplexing divides the circuit into a set of different time slots. - ANSWER False
The predominant method of transferring information internally in a computer is via parallel mode. - ANSWER True
Coding schemes are groups of bits that translate into the "alphabet" of any given system. - ANSWER True
A codec converts an incoming digital signal to an analog signal for transmission over an analog network. - ANSWER False
Multimode fiber is capable of longer transmission distances than single mode fiber. - ANSWER False
The medium is the physical matter or substance that carries the voice or data transmission. - ANSWER True
Fiber optic cable carries signals in traditional electrical form - ANSWER False
When all bits of a character are transferred one after another, the bits are transferred in ___________ mode. - ANSWER serial
ASCII is the least popular code for data communications. - ANSWER False
If each sample uses 16 bits and the number of samples taken each second is 8000; then the transmission speed on the circuit is? - ANSWER 128 Kbps
Which of the following statements is correct? - ANSWER Serial transmission is slower than parallel transmission.
With nonreturn to zero signaling, the voltage alternates between zero and a positive or negative voltage. - ANSWER False
microwave transmission - ANSWER All of the above
A(n) __________ circuit is another name for a multipoint configuration. - ANSWER shared
Propagation delay is negligible with satellite transmission - ANSWER False
Which is not true about point-to-point circuits? - ANSWER point-to-point circuits reduce the amount of cable required and use the circuit more efficiently than multipoint circuits.
In general, networks designed to transmit primarily computer data are likely to be ________. - ANSWER digital
The acronym, Modem, stands for _________________. - ANSWER modulator-demodulator
___________ is not a type of digital signaling technique. - ANSWER Data rate signaling
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