634ch1final

__________ ensure that hardware and software produced by different vendors work together. a. Delimiters b. Standards c. ASPs d. RBOCs e. Intranets

Answer: B

The American National Standards Institute: a. is the coordinating organization for the United States' national system of standards b. is a professional society in the U.S. whose standards committees focus on local area network standards c. sets the standards that govern how much of the Internet will operate d. is an agency that develops federal information processing standards for the federal government e. makes technical recommendations about global telephone rates

Answer: A

The integration of voice, video, and data communications is also known as __________. a. convergence b. peer-to-peer networks c. metropolitan wide networks d. regional bell operating company e. intranet

Answer: A

The internet standards organization that will allow anyone to join is __________________. a. ANSI b. ISO c. IETF d. IEEE e. ITU-T

Answer: C

The three stages of the formal standardization process are ______________________. a. specification, identification of choices and acceptance. b. planning, implementing and acceptance. c. brainstorming, identification and implementing. d. specification, formalization, and acceptance. e. none of the above.

Answer: A

Which of the following is not a data link layer standard? a. HTTP b. Ethernet c. T1 d. PPP e. Frame Relay

Answer: A

Which of the following is not an important future trend in communication and networking? a. development of online batch systems b. integration of voice, video, and data c. pervasive networking d. provision of new information services on rapidly expanding networks e. development of extremely high speed broadband networks

Answer: A

Which of the following is not true about de facto standards? a. They never evolve into formal standards. b. They are those standards that emerge in the marketplace. c. They tend not to be developed by an official industry or government body. d. They are generally supported by more than one vendor but de facto standards have no official standing. e. They tend to emerge based upon the needs/response of the marketplace.

Answer: A

Which of the following is not true about formal standards? a. They are always developed before de facto standards. b. One example exists for network layer software (IP). c. They can be developed by an official industry body. d. They can take several years to develop. e. They can be developed by a government body.

Answer: A

In the Internet model, the application layer corresponds to the ________, layer(s) s of the OSI model. a. data link and network b. session, presentation and application c. application layer d. application and presentation e. network, transport and presentation

Answer: B

In which layer of the Internet model would the HTTP standard be used? a. physical b. application c. transport d. network e. data link

Answer: B

The ____________ layer of the OSI model is responsible for data format translation. a. session b. presentation c. physical d. application e. transport

Answer: B

The fourth layer of the OSI model is called the __________ layer. a. network b. transport c. session d. data link e. presentation

Answer: B

The primary reason for networking standards is to: a. simplify cost accounting for networks b. ensure that hardware and software produced by different vendors can work together c. make it more difficult to develop hardware and software that link different networks d. ensure that all network components of a particular network can be provided by only one vendor e. lock customers into buying network components from one vendor

Answer: B

Which layer of the OSI model is responsible for ensuring flow control so that the destination station does not receive more packets that it can process at any given time? a. presentation Layer b. transport Layer c. physical Layer d. session Layer e. application Layer

Answer: B

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? a. presentation Layer b. transport Layer c. physical Layer d. session Layer e. application Layer

Answer: B

Which of the following is a term used to group together the physical and data link layers? a. Internetwork layers b. Hardware layers c. Software layers d. Middleware layers e. Application layers

Answer: B

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. a. agreement b. standard c. protocol d. regulations e. policy

Answer: C

The _________ layer performs error checking which is redundant with the function of the _________ layer. a. application, presentation b. physical, data link c. transport, data link d. presentation, transport e. network, physical

Answer: C

Which is not a function of the physical layer: a. transmission of bits. b. defining the rules by which one and zeroes are transmitted. c. providing error-free transmission of data. d. providing the physical connection between sender and receiver. e. specifying the type of connection and type of signals, waves or pulses that pass though it.

Answer: C

Which of the following is not an application layer standard? a. HTTP b. POP c. T1 d. IMAP e. HTML

Answer: C

Which of the following would be a standard used at the Data Link layer of the Internet or OSI model? a. IP b. TCP c. Ethernet d. HTTP e. FTP

Answer: C

Pervasive networking means that: a. the five-layer network model will be used to design all networks b. all networks of the future will be developed by a monopolistic organization c. the cost of computers will be higher in the future d. virtually all computers will be networked in some way to other computers and be able to transmit data at staggeringly fast rates e. cable companies will offer more than 150 network selections for viewers

Answer: D

Which standards body is responsible for the development of local area network (LAN) standards? a. ANSI b. ISO c. IETF d. IEEE e. ITU-T

Answer: D

The network layer of the Internet model uses the _____________ protocol to route messages though the network. a. TCP b. HTTP c. FTP d. SMTP e. IP

Answer: E

Ethernet is an example of a network layer protocol.

Answer: False

Passive optical networking, a key trend for the future, means that virtually any computer will be able to communicate with any other computer in the world.

Answer: False

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

Data communication standards enable each layer in the sending computer to communicate with its corresponding layer in the receiving computer.

Answer: True

The OSI model is the most widely used network model to develop and build networks today.

Answer: True

The application layer is the seventh layer of the Internet model and provides the end user's access to the network.

Answer: True

The network layer is responsible for routing messages from the source computer to the destination computer.

Answer: True

The _________ layer is responsible for routing of messages from the sender to the final destination. a. data communication layer b. resident layer c. application layer d. network layer e. physical layer

Answer: d

Which of the following is a function of the transport layer? a. linking the physical layer to the network layer b. formatting messages by indicating where they start and end c. deciding which route the message should take d. breaking long messages into several smaller messages e. specifying the type of connection and the electrical signals, radio waves, or light pulses that pass through it

Answer: d

Which of the following is not a function of the data link layer? a. deciding when to transmit messages over the media b. formatting the message by indicating where messages start and end, and which part is the address c. detecting and correcting any errors that have occurred in the transmission of the message d. specifying the type of connection, and the electrical signals, radio waves, or light pulses that pass through it e. controlling the physical layer by determining when to transmit

Answer: d