BASIC NETWORKING: Types of Computer Network and Topologies

What is a Ethernet?

- 802.3 - is the traditional technology for connecting wired local area networks (LANs), enabling devices to communicate with each other via a protocol - shares media

What is Hybrid Topology?

- A network structure whose design contains more than one topology is said to be hybrid topology. - The picture represents an arbitrarily hybrid topology.

What is Inter-connectivity?

- Components of a network can be connected to each other differently in some fashion. By connectedness we mean either logically , physically , or both ways - Every single device can be connected to every other device on network, making the network mesh.

What are the different types of LAN technologies?

- Ethernet - Fast Ethernet - Giga-Ethernet - Virtual Lan

What is administration?

- From an administrator's point of view, a network can be private network which belongs a single autonomous system and cannot be accessed outside its physical or logical domain. - A network can be public which is accessed by all

How computer networks are classified?

- Geographical span - Inter-connectivity - Administration - Architecture

What is Tree Topology?

- Hierarchical Topology, this is the most common form of network topology in use presently - This topology divides the network into multiple levels/layers of network.

What is a Local Area Network?

- Local Area Network is a group of computers connected to each other in a small area such as building, office. - LAN is used for connecting two or more personal computers through a communication medium such as twisted pair, coaxial cable, etc. - uses either Ethernet or Token-ring technology - operates on private IP addresses - Computers that are managing the administrator in ITRO

What are the two types of topologies?

- Physical topology - Logical topology

What is a network topology?

- The structure of a computer network - is the arrangement with which computer systems or network devices are connected to each other.

What types of services does internet provide?

- Website - Email - Instant Messaging - Blogging - Social Media - Marketing

What is a Mesh Topology?

- a host is connected to one or multiple hosts. - has hosts in point-to-point connection with every other host or may also have hosts which are in point-to-point connection with few hosts only

What is Bus topology?

- all devices share single communication line or cable - may have problem while multiple hosts sending data at the same time.

What is point to point topology?

- contains exactly two hosts such as computer, switches, routers, or servers connected back to back using a single piece of cable. - connected back to back

What is a Metropolitan Area Network?

- is a network that interconnects users with computer resources in a geographic area - generally expands throughout a city such as cable TV network like - e.g PLDT within a city

What is Logical topology?

- is the arrangement of devices on a computer network and how they communicate with one another. - defines how nodes in a network communicate across its physical topology.

What are the list of network topologies?

- point to point - Bus - Star - Ring - Mesh - Tree - Hybrid

What is Giga Ethernet?

- provides speed up to 1000 mbits/seconds - IEEE802.3ab

What is Virtual LAN?

- uses Ethernet which in turn works on shared media. - is a solution to divide a single Broadcast domain into multiple Broadcast domains

What does Full Mesh do?

All hosts have a point-to-point connection to every other host in the network.

What is a star topology?

All hosts in Star topology are connected to a central device, known as hub device, using a point-to-point connection.

What is 100BASE-FX means?

Cable is fiber optic, which provides speed up to 100MBPS

What is Architecture?

Computer networks can be discriminated into various types such as Client-Server, peer-to-peer or hybrid, depending upon its architecture.

What is Network Applications?

Computer systems and peripherals are connected to form a network. - Resource sharing such as printers and storage devices - Exchange of information by means of e-Mails and FTP - Information sharing by using Web or Internet

Why is the MAC address called 48 bit when it is 12 characters in length?

Convert hexadecimal to binary

What is Geographical span?

It may be spanned across your table, among Bluetooth enabled devices,. Ranging not more than few meters.

What are the types of Computer network?

LAN (Local Area Network) PAN (Personal Area Network) MAN (Metropolitan Area Network) WAN (Wide Area Network) IN (Internet Network) VPN( Virtual Private Network)

What does Partially Mesh do?

Not all hosts have point-to-point connection to every other host.

What is a Personal Area Network?

Personal Area Network is a network arranged within an individual person, typically within a range of 10 meters. - tv remote

What is full duplex?

can send and receive at the same time

What is half duplex?

can send and receive but NOT at the same time

What is a ring topology?

each host machine connects to exactly two other machines, creating a circular network structure.

What is a Submarine Communications cable

is a cable laid on the sea bed between land-based stations to carry telecommunication signals across stretches of ocean and sea.

What is a fast ethernet?

is a local area network (LAN) transmission standard that provides a data rate of 100 megabits per second (referred to as "100BASE-T").

What is Metro Ethernet?

is a service which is provided by ISPs.

What is a Wide Area Network?

is a telecommunications network that extends over a large geographical area for the primary purpose of computer networking.

What is internetwork?

is the process or technique of connecting different networks by using intermediary devices such as routers or gateway devices.

Topologies may define as?

may define both physical and logical aspect of the network.

What is physical topology?

refers to the interconnected structure of a local area network (LAN).

What is P2P topology?

two nodes are directly connected through a wire or other medium

What is 10BASE-T?

was the first version of Ethernet to use a star architecture. When used with a hub, 10Base-T shares the 10 Mbps bandwidth between all the ports.