Quiz 1 Flashcards
What is Internetworking and the Internet about
a) Enabling a network of networks comprised of a heterogenous collection of network technologies
b) Enabling a network comprised of identical smaller networks
c) Enabling two computers connected by a communication link to exchange data
a) Enabling a network of networks comprised of a heterogenous collection of network technologies
In the basic Internet network model, where are applications residing
a) In the access network
b) In the network edge
c) In the network core
b) In the network edge
Applications in a distributed systems
a) Typically runs in a powerful cluster of computer directly connected by a high-speed communication network
b) Typically runs as processes on different computers and communicating over a network
c) Typically runs as processes on single powerful server and communicate using shared memory
b) Typically runs as processes on different computers and communicating over a network
Distributed systems makes it possible to provide applications that are. Choose 1 or several options.
a) More reliable than conventional applications
b) More scalable than conventional applications
c) More secure than conventional applications
a) More reliable than conventional applications
b) More scalable than conventional applications
Transmission delay and propagation delay at a node (host or packet switch) are related?
a) True
b) False
b) False
What is traffic intensity a measure of
a) A relation between amount of bits received per time unit for transmission and the rate with which the bits can be transmitted
b) The amount of bits received in an incoming communication link
c) The amount of bits/second presented to a link for transmission
a) A relation between amount of bits received per time unit for transmission and the rate with which the bits can be transmitted
Which of the following situations may lead to loss of datagrams / packets in a packet-switched network? Choose 1 or several options.
a) There may be some interference on a communication link causing some of the transmitted bits to be changed
b) Some buffers may overflow because too many packets arrives for a transmission on a communication link
c) A host informs a packet switch that it decided not to transmit the packet anyway
a) There may be some interference on a communication link causing some of the transmitted bits to be changed
b) Some buffers may overflow because too many packets arrives for a transmission on a communication link
Which of the following is not a layer in the TCP/IP protocol stack ?
a) Link
b) Application
c) Network
d) Physical
e) Session
f) Transport
e) Session
A service provided by a layer also mandates the protocol that must be used to implement the service
a) True
b) False
b) False
What layers of the TCP/IP protocol stack does a router implement? Choose 1 or several options.
a) Network
b) Physical
c) Link
d) Transport
e) Application
a) Network
b) Physical
c) Link
