CN Lab Quiz-1

What is a computer network?

• A device used to display information on a computer screen

• A collection of interconnected computers and devices that can communicate and share resources

• A type of software used to create documents and presentations
  
  

• The physical casing that protects a computer’s internal components

What is the full form of OSI?

• optical service implementation

• open service Internet

• open system interconnection

• operating system interface

How many layers are there in the ISO OSI reference model?

• 7

• 5

• 4
  
  

• 6

Which among the following represents the objectives/requirements of Data Link Layer?

• Frame Synchronization

• Error & Flow Control

• Both a & b
  
  

• None of the above

Which of the following tasks is not done by data link layer?

• framing
  
  

• error control

• flow control

• channel coding

TCP/IP model does not have ______ layer but OSI model have this layer.

• session layer

• transport layer

• application layer

• network layer

Which layer is used to link the network support layers and user support layers?

• session layer

• data link layer

• transport layer

• network layer

TCP/IP model was developed _____ the OSI model.

• prior to

• after

• simultaneous to
  
  

• with no link to

Which layer is responsible for process to process delivery in a general network model?

• network layer
  
  

• transport layer

• session layer

• data link layer

Which layer provides the services to user?

• application layer

• session layer

• presentation layer
  
  

• physical layer