PHYSICAL LAYER
In the Physical Layer, data is transformed into:
EM SIGNALS
which sublayer of link layer provides Automatic repeat request error management
logical link control
In network layer data is represented in which form ?
data packets
Which protocol is used to transfer mail from senders user agent to senders mail server?
SMTP
What does the acronym DHCP stand for?
Dynamic Host Configuration Protocol
Communication between a computer and a keyboard involves which mode of transmission?
CRC in errror correction mechanism stands for ?
cyclic redundancy check
the size of IP v4 ?
32 bits
The packet of information at the application layer is called
Message
Which of the following is a connectionless transport protocol?
UDP
FTP uses how many TCP connections to transfer a file?
2
Which network device forwards data packets between different computer networks?
ROUTER
Which protocol is known as push protocol?
SMTP
What is the default subnet mask for a Class C IP address?
255.255.255.0
Which protocol is known as pull protocol?
HTTP
Which layer of the OSI model handles data encryption and compression?
PRESENTATION LAYER