quiz questions Flashcards
which of the following is not part of a computer network
a. users exposed
b. devices appearing as a single network
c. autonomous set of devices
d. interconnect set of devices
ans: b
single network is for distributed system/network NOT computer network
if collision happens n times in a row in ethernet, how many time slots to wait?
ans: 0 to (2^n)-1 time slots
u can send more info in wireless transmission when
frequency is high, wavelength is small
a (value) in p-presistent indicates
- probability is (value)
2. it defers with = 1-(value)
what is the phase of the signal in radiant
pi
given RTT, find min frame size in FAST ethernet
trans delay = frame size/ 100Mbps = RTT
= RTT * 100 = frame size (bits)
which layer in OSI recovers a large file that stopped downloading
session
change in a short span of time means
low period
in OSI which layers are responsible for flow control
data link and transport
you have A B C D in a packet, what do A and C represent
C = source's LOGICAL address A = router's physical address
interface is between layers of
the same stack
from SENDER’s side, message is sent from which layers
layer 7 to 6 (top layer to one below)
block waiting for incoming message is which system call
RECEIVE
which is true regarding TCP/IP and OSI
- in OSI, network layer is either connection oriented or connectionless
- in TCP/IP, transport layer is either connection oriented or connectionless
- OSI is better for new networks
how many layers operate in OSI’s subnet
3
network
data
physical
