Questions to help study for Network+ exam featuring OSI layer model and cable types.

published on February 10, 20156 responses 0

Routers perform routing at which OSI layer?

Data Link

14. Which layer is used for reliable communication between end nodes over the network and provides mechanisms for establishing, maintaining, and terminating virtual circuits as well as controlling the flow of information?

15. Which layer provides logical addressing that routers use for path determination?

Which layer of the OSI model is responsible for converting data into signals appropriate for the transmission medium?

Data Link

Which layer of the OSI model provides a user interface in the form of an entry point for programs to access the network infrastructure?


Which layer 1 devices can be used to enlarge the area covered by a single LAN segment? Choose two.

Select the two correct answers
RJ-45 transceiver

16. Which layer specifies voltage, wire speed, and connector pinouts and moves bits between devices?

Of the following, which is the highest layer in the OSI model?


Dialog control, keeps different applications” data separate, setting up, managing and then tearing down sessions between later entities, organizes communication between systems and serves to organize their communication by offering three different modes: simplex, half duplex, and full duplex.

Which layer of the OSI model is responsible for code and character-set conversion as well ad recognizing data formats?


Moves bits between devices, specifies voltage, wire speed, and pin-out of cables, communicates directly with the various types of actual communication media,specifies the electrical, mechanical, procedural, and functional requirements for activating, maintaining, and deactivating a link between end systems,identify interface between the data terminal equipment and the data communication equipment, specifies layout of transmission media.

At which layer of the OSI model would you find IP?

Data Link

At which layers of the OSI model do bridges, hubs, and routers primarily operate, respectively?

Data Link, Data Link, Network
Data Link, Physical, Network
Physical, Data Link, Network

11. Which layer defines how data is formatted, presented, encoded, and converted?

You are connected to a server on the Internet and you click on a link on the server and receive a time-out message. What layer could be the cause of this message?


10. At which layer is routing implemented ,enabling connections and path selection between two end systems?

What mnemonic device can you use to remember the first letter of the name of each layer of the OSI model in order?

17. Which layer combines bits and bytes into frames and uses MAC addressing?

Which layer is responsible for converting data packets from the Data Link Layer into electrical signals?

File, print, message, database, application serves, provides a user interface, communicate to the computer, acts as interface between certain programs, responsible for identifying and establishing the availability of the intended communication partner and determining whether sufficient resources for the intended communication exist.

Framing, combines packets into bytes and bytes in frames, provides access to media using MAC address, performs error detection not correction, provides physical transmission of the data and handles error notification, ensures that messages are delivered to the proper device on a LAN using hardware addresses, and translates messages from one later into bits for another layer to transmit, formats message into pieces, responsible for the unique ID of each device that resides on a local network.

12. Which layer is responsible for creating, managing, and terminating sessions between applications?

Data encryption, compression, translation services, presents data, handles processing such as encryption, code formatting, ensures data transferred from one systems layer to another can be read.

Which layer chooses and determines the availability of communicating partners along with the resources necessary to make the connection, coordinates partnering applications, and forms a consensus on procedures for controlling data integrity and error recovery?

Segmentation of a data stream happens at which layer of the OSI model?


Which of the following are types of flow control? (Choose all that apply)

Select the three correct answers
Congestion avoidance

Routing, provides logical addressing, tracks location of devices, determines best way to move data, data packets and route-update packets used here.

TCP and UDP reside at which layer of the OSI model?


End-to-end connection, provides reliable or unreliable delivery, performs error correction before retransmit, segments and reassembles data into a data stream, establishes logical connection between the sending host and destination host on an internetwork, responsible for providing mechanisms for multi-plexing upper layer applications, establishing sessions, and tearing down virtual circuits.

Which IEEE standard specifies the protocol for CSMA/CD?


Host 1 sent a SYN packet to Host 2. What will host 2 send in response?


When data is encapsulated, which is the correct order?

Data, segment, packet, frame, bits
Data, segment, frame, packet, bits
Data, frame, packet, segment, bits

Acknowledgements, sequencing, and flow control are characteristic of which OSI layer?

Layer 7
Layer 4
Layer 3

13. Which layer manages the transmission of data across a physical link and is primarily concerned with physical addressing and the ordered delivery of frames?