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10 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Small Home Network : - Connect few computers Small Office : - Connect to a corporate network |
Medium to Large network : - Connects computer within the city |
World wide wide network : - connects computer entire country |
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Computer Connects to network called host* |
Server are computers that provide information to end device |
Clients are computers that send request to the server. |
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Small homes, it is typical for a client to act as server are called peer-to-peer. |
Intermediary Network Device : - Connects the end device in a network - Router, Switch, Hub Roles : - Regenerate & retransmit data signals - Maintain information through network - Notify other devices of error |
Network media : Communication across a network is carried through a medium which allows a message to travel from source. - Copper, Fiber Optic, Wireless |
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Physical topology - Arrangement of topology Logical topology - Flow of data in topology |
Intranet - Private internal LAN n WAN that can only be accessed by the organization members. (Company only) Extranet - Provide secure access to their network for different organization that need access to their database. (Supplier, Customer) |
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Digital Subscriber Line (DSL) - Use get high bandwidth and used to transmit digital data over telephone lines |
Internet Service Protocol (ISP) - An organization that provide internet service |
Metro Ethernet - used to connect subscriber to a larger service network or the internet. |
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Cable - high bandwidth, use for television |
Satellite - Benefit to rural areas without ISP |
Dial-up telephone - inexpensive, low bandwidth |
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Dedicated Leased Line - Connects distance office with private voice or data networking |
Ethernet WAN - Extends LAN access tech into WAN |
Converging Network - carry multiple services on one link/same infrastructure including data, voice n video n use the same set of rules n standard |
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Network Architecture : - Fault Tolerance - Scalability - Quality of service (QOS) - Security |
Fault Tolerance - limits the impact of failure by limiting the number of affected device - redundant Connection allow for alternative paths of a device or a link fails |
Scalability - can expand quickly n easily to support new users without impacting the performance of services to existing users. |
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Quality of Service (QOS) - capability of a network to provide better service to selected network traffic. - voice n live video transmission require high expectation and higher demand for bandwidth than available |
Security : i) network infrastructure security : - physical security - preventing unauthorized access
ii) Information Security : - Protection of the information or data transmit over the network. |
New trend : - Bring your own device (BYOD) - Online collaboration - video communication - cloud computing |
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Os Shell - command line interface |
Os kernal |
Purpose of os |
