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Computer Networking

Computer networks are collections of computers which are connected together in order to communicate and transfer information. Questions about computer networks, networking protocols, and how to set them up belong here.

18,810 Questions

What is an LAN?

LOCAL ACCESS NETWORK. meaning as opposed to Internet whereby every body can be connected.

Hich three factors should be considered when implementing a Layer 2 protocol in a network?

the geographic scope of the network

the physical layer implementation

the number of hosts to be interconnected

What is the difference between an abstract system and a physical system?

Physical systems are tangible entities that may be static or dynamic in operation. For Example, the physical parts of the computer center are the offices, desks, and chairs that facilitate operation of the computer. They can be seen and counted, they are static. In contrast, programmed computer is a dynamic system. Data, programs, output and application changes as the user's demand or the priority of the inforamation requested changes.

Abstract systems are conceptual or nonphysical entities. They may be models-the abstract conceptualization of physical situations. A model is a representation of a real or a planned system. The use of models makes it easier for the analyst to visualize relationships in the system under study. The objective is to point out the significant element and the key interrelationships of a complex system.

10-gigabit fiber optic standard with the shortest segment length?

10GBase-SR

or

10GBase-SW

S stand for short reach

R + W reflect type of Physical layer encoding each uses.

What is the inventory state and covertibility of Nigeria natural resources?

Nigeria has abundant natural resources, including oil, natural gas, coal, and minerals. However, the inventory state of these resources may vary due to factors such as exploitation, management, and environmental concerns. The convertibility of Nigeria's natural resources refers to their potential to be economically beneficial and may involve factors like market demand, technological advancements, and government policies.

How can a PC Win2000 and laptop XP connect to the internet together using a hub?

If the is just a Hub, It will not work. You need a router/hub. A router/hub combination allows you to connect to your ISP and link all computers within your home. The cost is cheap and the installation is simple. I recommend you to purchase a router/hub at your local computer, electronics store. Follow the simple directions and you will be operational in no time.

Difference between spooling and buffering?

Spooling is an acronym for Simultaneous Peripheral Operation On-Line and involves placement of data in temporary working area for another program to process. Buffering on the hand, is preloading data into a reserved area of memory which is called the buffer.

Father of operating system?

Sorry but for me the fathers of OS are Kenneth Lane Thompson and Dennis Ritchie, creators of UNIX

Bill Gates

Define a domain and co domain?

A domain is your Internet address. co is the latest domain introduction and is a good alternative if your .com domain is not available

What are the advantages of cluster sampling?

basically it is cheaper than other methods so it is preferred over other methods.

How do you become a LAN engineer?

Hi LAN is Local Area Network U need to pick up some courses on Computer Networking , learn about Routers, bridges and other LAN hardware You can pick up any learn-urself-book on Computer Networks n Ethernet else if you want a proper degree for for some IT institute

What is a block of information stored in an HTML file on a server?

A block of information stored in an HTML file on a server is called a control file. A file may contain program instructions or data, which may be numerical, textual or graphical information.

What is traditional PBX?

PBX stands for Private Branch Exchange. The system is used in interconnecting telephone lines and extensions within a company or office. The system then link this network the PSTN.

What is a coaxil cable?

I suppose you meant coaxial cable. As the name suggests, coaxial cables comprise of a signal wire, usually made of copper, surrounded by a meshwork of stranded wires all around.There is NO electrical contact between the two concentric conductors, which is separated by an insulator usually made of teflon. It is as if an outer cylinder comprising of the meshwork, inside which the copper wire is placed, in the same longitudinal (axis) orientation. It is of importance in applications where electromagnetic interference is unwanted. The outer meshwork acts as an electromagnetic shielding, thus minimizing interference. Used in cable TV, medical equipments and many other applications.

What is the meaning of cable casting?

Cablecasting is the same as Broadcasting, except that the signal never goes through the air to be picked up by receivers (TVs). Only people who are plugged in to that cable service can receive that cablecast.