Virtualisation

What is virtualisation?

• Creating a simulated network using software

• Creating a physical network using hardware

• Creating a simulated network using hardware

• Creating a physical network using software

When was server virtualisation first used?

• 1960s

• 1990s

• 1970s

• 1980s

What is the benefit of server virtualisation?

• Prevents registry conflicts

• Requires additional physical servers for each application

• Enables a single physical server to run several applications

• Allows only one application to run on a server

What is the purpose of storage virtualisation?

• To create a virtual network for storage

• To separate the physical storage server from the logical storage server

• To prevent data manipulation

• To combine the physical storage server with the logical storage server

What is the main difference between cloud computing and virtualisation?

• Cloud computing uses existing technology, while virtualisation creates a simulated network

• Cloud computing is a type of virtualisation

• Cloud computing is used for data storage, while virtualisation is used for data manipulation

• Cloud computing creates a simulated network, while virtualisation uses existing technology

What is hybrid cloud computing?

• A type of virtualisation for cloud networks

• A mixture of private cloud, public cloud, and locally owned services

• A mixture of private cloud and public cloud only

• A type of networking characteristic

What is a characteristic of peer-to-peer networks?

• All computers communicate through a central hub

• Each computer is linked to one or more computers directly

• All peripherals are attached to a single cable with terminators at each end

• One directional communication through a cable

What is the main disadvantage of a bus network?

• Adding additional devices can slow the network down significantly

• Difficult to identify a faulty peripheral

• The possibility of transmissions crashing into each other

• The cable may break and split the network into two

What method does a ring network use to prevent collisions?

• Boosting

• Token passing

• Broadcasting

• Regeneration

What is the main advantage of a total mesh topology?

• Less cabling required

• All nodes connected directly to all other nodes

• Rerouting options if a connection fails

• Cheaper than partial mesh topology