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03 - Network Topologies

 1. Computers in a network have to be connected in a logical manner. The layout pattern of interconnections between computers is called:
network_topologies_types.png

  an internet device

  a network interconnection

  a network connection

  a network topology

 2. Which of the following is NOT a network topology 
BUS
RING
STAR
MESH
PLANET

  PLANET

  BUS

  MESH

  RING

 3. Network topology is the arrangement of the elements (links, _______, etc.) of a communication network
<

  monitors

  Mice

  ISPs

  nodes

 4. Physical topology is the placement of the various components of a network (e.g., device location and cable installation), while logical topology illustrates ….

  how data flows within a network.

  how nodes are connected to the host PC

  how the internet is connected to the network

  how cables are connected directly to the internet

 5. Networks can either be local area networks or wide area networks. An example of a LAN would be:

  A single standalone PC

  Your university or school

  The Internet

  A number of standalone machines in an office block - unconnected

 6. A ____ network is a network topology in which nodes are directly connected to a common linear (or branched) half-duplex link called a ____

  star

  ring

  bus

  mesh

 7. A ______ network is a network topology in which each node connects to exactly two other nodes, forming a single continuous pathway for signals through each node - a _____

  star

  mesh

  bus

  ring

 8. Read the excerpt below and decide what network topology it is referring to 
A___________network (or simply _____hnet) is a local network 
topology in which the infrastructure nodes (i.e. bridges, 
switches and other infrastructure devices) connect directly, 
dynamically and non-hierarchically to as many other nodes as 
possible and cooperate with one another to efficiently route 
data from/to clients

  bus

  ring

  star

  mesh

 9. What network topology is being described in the following excerpt? 
A ____ network is one of the most common computer network topologies. 
In its simplest form, a star network consists of one central hub/server
which acts as a conduit to transmit messages. In ____ topology, 
every host is connected to a central hub/server.

  mesh

  ring

  star

  bus

 10. What type of network is likely to be expensive (as each node is connected to every other node) but robust 
Note to clarify: 'Robust' because if one node fails, the other computers on the network will continue to operate and allow data transmission

  None of the above

  ring

  star

  bus

 11. In which topology is there likely to be few data collisions as each node has its own cable/connection to the server?

  None of the above

  star

  bus

  ring

 12. What is one of the disadvantages of the star network?

  If one of the nodes fails, the entire network will be affected

  If the server fails, the whole network will be down

  If the server fails, all the data will be transmitted to the other nodes much faster

  None of the above

 13. Which of the following topologies is likely to be the most expensive due to the cabling?

  All of them cost exactly the same.

  bus

  ring

  star

 14. In a star network it is very difficult to add or remove a node as doing so will adversely affect the network

  FALSE

  TRUE

 15. The robustness of a mesh network allows for some interesting uses and applications including:

  Mobile hot spots

  Music streaming devices around the home

  Battlefield mesh networks to allow military solidiers to communicate with each other

  All of the above


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