The goal of a noninterference model is to strictly separate differing security levels to assure that higher-level actions do not determine what lower-level users can see. This is in contrast to other security models that control information flows between differing levels of users, By maintaining strict separation of security levels, a noninterference model minimizes leakages that might happen through a covert channel.
The model ensures that any actions that take place at a higher security level do not affect, or interfere with, actions that take place at a lower level.
It is not concerned with the flow of data, but rather with what a subject knows about the state of
the system. So if an entity at a higher security level performs an action, it can not change the state
for the entity at the lower level.
The model also addresses the inference attack that occurs when some one has access to some
type of information and can infer(guess) something that he does not have the clearance level or
authority to know.
The following are incorrect answers:
The Bell-LaPadula model is incorrect. The Bell-LaPadula model is concerned only with
confidentiality and bases access control decisions on the classfication of objects and the
clearences of subjects.
The information flow model is incorrect. The information flow models have a similar framework to
the Bell-LaPadula model and control how information may flow between objects based on security
classes. Information will be allowed to flow only in accordance with the security policy.
The Clark-Wilson model is incorrect. The Clark-Wilson model is concerned with change control
and assuring that all modifications to objects preserve integrity by means of well-formed
transactions and usage of an access triple (subjet - interface - object).
References:
CBK, pp 325 - 326
AIO3, pp. 290 - 291
AIOv4 Security Architecture and Design (page 345)
AIOv5 Security Architecture and Design (pages 347 - 348)
https://en.wikibooks.org/wiki/Security_Architecture_and_Design/Security_Models#Noninterference
_Models

Ethernet bus topology was the first commercially viable network
topology, and consists of all workstations connected to a single coaxial cable. Since the cable must be properly terminated on both ends, a break in the cable stops all communications on the bus.
* the physical star topology acts like a logical bus, but provides better fault tolerance, as a cable break only disconnects the workstation or hub directly affected.
* logical ring topology, is used by Token Ring and FDDI and is highly resilient. Token Ring employs a beacon frame, which, in case of a cable break, initiates auto reconfiguration and attempts to reroute the network around the failed mode. Also, the Token Ring active monitor station performs ring maintenance
functions, like removing continuously circulating frames from the
ring. FDDI employs a second ring to provide redundancy. Sources:
Virtual LANs by Mariana Smith (McGraw-Hill, 1998) and Internetworking
Technologies Handbook, Second Edition (Cisco Press, 1998).