Computer Networking Interview Questions And Answers

28. What are the Classification of clients?
Non-GUI clients - Two types are:-Non-GUI clients that do not need multi-tasking(Example: Automatic Teller Machines (ATM), Cell phone)Non-GUI clients that need multi-tasking(Example: ROBOTs)GUI clientsOOUI clients
29. What are called Non-GUI clients, GUI Clients and OOUI Clients?
Non-GUI Client: These are applications, generate server requests with a minimal amount of human interaction.GUI Clients: These are applicatoins, where occassional requests to the server result from a human interacting with a GUI(Example: Windows 3.x, NT 3.5)OOUI clients : These are applications, which are highly-iconic, object-oriented user interface that provides seamless access to information in very visual formats.(Example: MAC OS, Windows 95, NT 4.0)
30. What is Message Oriented Middleware (MOM)?
MOM allows general purpose messages to be exchanged in a Client/Server system using message queues. Applications communicate over networks by simply putting messages in the queues and getting messages from queues. It typically provides a very simple high level APIs to its services. MOM's messaging and queuing allow clients and servers to communicate across a network without being linked by a private, dedicated, logical connection. The clients and server can run at different times. It is a post-office like metaphor.
31. What is meant by Middleware?
Middleware is a distributed software needed to support interaction between clients and servers. In short, it is the software that is in the middle of the Client/Server systems and it acts as a bridge between the clients and servers. It starts with the API set on the client side that is used to invoke a service and it covers the transmission of the request over the network and the resulting response. It neither includes the software that provides the actual service - that is in the servers domain nor the user interface or the application login - that's in clients domain.
32. What are the functions of the typical server program?
It waits for client-initiated requests. Executes many requests at the same time. Takes care of VIP clients first. Initiates and runs background task activity. Keeps running. Grown bigger and faster.
33. What is meant by Symmentric Multiprocessing (SMP)?
It treats all processors as equal. Any processor can do the work of any other processor. Applications are divided into threads that can run concurrently on any available processor. Any processor in the pool can run the OS kernel and execute user-written threads.
34. What are Service-specific middleware?
It is needed to accomplish a particular Client/Server type of services which includes:-Database specific middlewareOLTP specific middlewareGroupware specific middlewareObject specific middlewareInternet specific middleware andSystem management specific middleware.
35. What are General Middleware?
It includes the communication stacks, distributed directories, authentication services, network time, RPC, Queuing services along with the network OS extensions such as the distributed file and print services.
36. What is meant by Asymmetric Multiprocessing (AMP)?
It imposses hierarchy and a division of labour among processors. Only one designated processor, the master, controls (in a tightly coupled arrangement) slave processors dedicated to specific functions.