osi model
The layer that transmits data in the form of bit streams using electrical and mechanical systems is ___ in the OSI model. A) Physical layer B) Data Link Layer C) Network Layer D) Transport Layer
A) Physical layer
Each layer of the OSI model receives services or data from a ___ layer. A) below layer B) above layer
A) below layer
Which is the layer of the OSI reference model that employs Error Detection? A) Physical Layer B) Data Link Layer C) Network Layer D) Session Layer
B) Data Link Layer
Which is the layer that converts Raw Bits to Frames and Frames to Raw Bits in the OSI model? A) Physical Layer B) Data Link Layer C) Network Layer D) Transport Layer
B) Data Link Layer
Who developed standards for the OSI reference model? A) ANSI - American National Standards Institute B) ISO - International Standards Organization C) IEEE - Institute of Electrical and Electronics Engineers D) ACM - Association for Computing Machinery
B) ISO - International Standards Organization
The acronym OSI stands for ____ in computer networking. A) Organization for Standards Institute B) Open Systems Interconnection C) Organizing Systems Interconnection D) Open Systems Interworking Answer [=]
B) Open Systems Interconnection
8) In an OSI model, the lowest layer is the ___ layer. A) Application Layer B) Physical Layer C) Presentation Layer D) Data Link Layer
B) Physical Layer
In the OSI model, each layer gives services or data to the __ layer. A) below B) above
B) above
10) In the OSI model, the bottom 3 layers assist in ___. A) converting data B) transporting data
B) transporting data
How many layers are there in the OSI reference model of networking? A) 5 B) 6 C) 7 D) 8
C) 7
Which is the layer that converts Packets to Frames and Frames to Packets in the OSI model? A) Physical Layer B) Data Link Layer C) Network Layer D) Transport Layer
C) Network Layer
A layer of the OSI model on one system communicates with the ___ layer of its peer system. A) above B) below C) same D) None
C) same
The physical layer involves ___ A) Optical, electrical and mechanical properties B) Voltage levels, timing and frequency C) Physical connections D) All the above
D) All the above
The protocols working in the physical layer of the OSI Model are ___. A) USB, Bluetooth, IEEE 802.3, IEEE 802.11, IEEE 802.15, IEEE 802.16 B) POTS, PDH, SONET, SDH, PON, OTN, DSL, ITU-T V series, ITU-T G.hn PHY C) I.430, I.431, EIA/TIA-232, EIA/TIA-449 D) All the above
D) All the above
What are the advantages of 7 layers of OSI model? A) Troubleshooting the network is easy. B) Developing new functions or services for a particular layer is easy. C) Developing hardware devices targetting certain layers is easy because the services to be offered are fixed. D) All the above
D) All the above
7) Choose the correct layer numbers and names of the OSI model below. A) Layer 7 - Application Layer, Layer 6 - Presentation Layer B) Layer 5 - Session Layer, Layer 4 - Transport Layer C) Layer 3 - Network Layer, Layer 2 - Data Link Layer, Layer 1 - Physical Layer D) All the above.
D) All the above.
A set of standards that define how to communicate with each layer of the OSI model are ___. A) functions B) protocols C) data formats D) All the above.
D) All the above.