1. OSI stands for (a)
a. open system interconnection
b. operating system interface
c. the optical service implementation
d. none of these
2. The OSI model has ___ layers. (d)
a. 4
b. 5
c. 6
d. 7
3. This layer in an addition to OSI model (d)
a. Application layer
b. Presentation layer
c. Session layer
d. Both b and c
4. In OSI model, when data is sent from device A to device B, the 5th layer to receive data at B is (d)
a. Application layer
b. Transport layer
c. Link layer
d. Session layer
5. The number of layers in ISO OSI reference model (b)
a. 5
b. 7
c. 6
d. 8
