Module-1
The physical layer concerns with
bit-by-bit delivery
Automatic repeat request error management mechanism is provided by
logical link control sublayer
This topology requires multipoint connection
Bus
Which one of the following routing algorithm can be used for network layer design?
a) shortest path algorithm
b) distance vector routing
c) link state routing
Transport layer aggregates data from different applications into a single stream before passing it to
network layer
Which transmission media has the highest transmission speed in a network?
optical fiber
When 2 or more bits in a data unit has been changed during the transmission, the error is called
burst error
Data communication system spanning states, countries, or the whole world is
WAN
A subset of a network that includes all the routers but contains no loops is called
spanning tree
User datagram protocol is called connectionless because
all UDP packets are treated independently by transport layer
The data link layer takes the packets from _________ and encapsulates them into frames for transmission.
network layer
CRC stands for
cyclic redundancy check
Data communication system within a building or campus is
LAN
The network layer protocol of internet is
internet protocol
An endpoint of an inter-process communication flow across a computer network is called
socket
Which sublayer of the data link layer performs data link functions that depend upon the type of medium?
media access control sublayer
The sharing of a medium and its link by two or more devices is called _________
Multiplexing
In TDM, slots are further divided into
Frames
ICMP is primarily used for
error and diagnostic functions
In TCP, sending and receiving data is done as
Stream of bytes
The technique of temporarily delaying outgoing outgoing acknowledgements so that they can be hooked onto the next outgoing data frame is called
piggybacking
Which multiplexing technique transmits digital signals ?
TDM
The 4 byte IP address consists of
both network address & host address
The TTL field has value 10. How many routers (max) can process this datagram?
10
To achieve reliable transport in TCP, ___________ is used to check the safe and sound arrival of data.
Acknowledgment