Computer Skills Questions

187) E-mail, remote file access and transfer, printing services, various messaging services, and shared database management are all services supported at the data link layer of the OSI model.

29 46) If an employee used a file transfer protocol program to send a large report file, the user interface in the file transfer program would serve as the ________ layer that permits two people to exchange the data file over the network.A) presentationB) transferC) application D) session

1914) Something that is "logical," as in a logical address, cannot be changed or modified. Something that is "physical," as in a physical address, is fixed, or set, and can be changed.

174) The ISO developed the Open Systems Interconnection (OSI) model.

3047) When data travels through the layers of a networking model, it is most akin to ________.A) an envelope that gets stamped along the way B) a book that has chapters addedC) an onion that loses its layersD) a roof that has shingles added

1915) Whereas the network layer in the OSI model provides for logical addressing, the data link layer provides for physical addressing.

188) The presentation layer is responsible for the interoperability between a sender and receiver who might be using different encoding schemes.

1912) The transport layer ensures that the entire message sent from a sender to a receiver has been delivered.

20 18) Many of the courses on network wiring completed by networking technologists have an ethics component.

1911) Data does not have to be encoded into some binary form in order to be used by computer systems.

1916) OSHA stands for the U.S. Department of Labor's Occupational Safety and Health Administration.

186) Three key services provided at the application layer of the OSI model include: (1) synchronizing the services between a user application and the protocol(s) it may use, (2) ensuring that necessary resources required by an application service are available, and (3) making sure that the correct communication protocol or service is available to the application.

30 2.2 True/False Questions1) An infrastructure is like a highway that provides a means of transporting goods from one city to another.

162) Open architecture models share similar advantages to open standards in that they are unavailable for public comment, review, and varying implementations.

1812) Three key services provided at the application layer include: (1) synchronizing the services between a user application and the protocol(s) it may use, (2) ensuring that necessary resources required by an application service are available, and (3) ________. A) making sure that end users are receptiveB) making sure that the application is licensedC) making sure that email is properly set upD) making sure that the correct communication protocol or service is available to the application

163) If you have ever used a bank's automated teller machine (ATM), paid for gasoline at an automated gas pump using a charge card, made an airline reservation over the phone, paid a restaurant check using a credit card, or surfed the World Wide Web, then you have used a data communications network that is based on either the Open Systems Interconnection (OSI) or the Transmission Control Protocol/Internet Protocol (TCP/IP).

185) A good way to remember a layer stack (or protocol stack) is: All People Seem To Need Digital Power.

2950) How do OSI layers help a document in a Chicago workstation get to a workstation in Denver?A) OSI provides the authority for the file transfer.B) The layers ensure confidentiality as the file is sent.C) The layers provide the cloud that will allow the file transfer.D) The layer protocol takes over at each step, down the layers, and each layer envelopes and adds its own stamp or header.

2949) The three lower layers under the OSI model are:A) application, presentation, sessionB) network, data link, physical C) transfer, transmit, userD) link, presenting, final

3048) The top four "end-to-end" layers under the OSI model are:A) link, letter, presenting, and finalB) interior, exterior, anterior, and posteriorC) transfer, transmit, user, and endD) application, presentation, session, and transport