Network+

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

published on February 10, 20154 responses 0

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?

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

A.ACK
SYN-NAK
SYN-ACK

When data is encapsulated, which is the correct order?

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

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

3
4
1

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.

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.

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

Physical
Network
Transport

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?

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

Select the three correct answers
Buffering
Cut-through
Windowing
Congestion avoidance
VLANs

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

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

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

Network
Data Link
Physical

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

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?

Which IEEE standard specifies the protocol for CSMA/CD?

802.11
802.5
802.3

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

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

Layer 7
Layer 4
Layer 3

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

Application
Session
Presentation

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

Presentation
Transport
Session

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.

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

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

Select the two correct answers
Switch
NIC
Hub
Repeater
RJ-45 transceiver

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

Transport
Application
Network

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

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.

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

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.

Routers perform routing at which OSI layer?

Data Link
Transport
Network

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

Transport
Network
Data Link

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.

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?

Application
Network
Transport

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

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

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