OSI Model / Physical Layer Mcqs
1- A single channel is shared by multiple signals by
a) analog modulation
b) digital modulation
c) multiplexing
d) none of the mentioned
2- The physical layer is responsible for
a) line coding
b) channel coding
c) modulation
d) all of the mentioned
3- Bits can be send over guided and unguided media as analog signal by
a) digital modulation
b) amplitude modulation
c) frequency modulation
d) phase modulation
4- The physical layer concerns with
a) bit-by-bit delivery
p) process to process delivery
c) application to application delivery
d) none of the mentioned
5- Which transmission media has the highest transmission speed in a network?
a) coaxial cable
b) twisted pair cable
c) optical fiber
d) electrical cable
6- The portion of physical layer that interfaces with the media access control sublayer is called
a) physical signalling sublayer
b) physical data sublayer
c) physical address sublayer
d) none of the mentioned
7- In asynchronous serial communication the physical layer provides
a) start and stop signaling
b) flow control
c) both (a) and (b)
d) none of the mentioned
8- The physical layer translates logical communication requests from the ______ into hardware specific operations.
a) data link layer
b) network layer
c) trasnport layer
d) application layer
9- Wireless transmission can be done via
a) radio waves
b) microwaves
c) infrared
d) all of the mentioned