LS3 NETWORKS

The Media access control address identifies a specific device (network card/controller).It prevents unauthorised access by providing extra layer to authenticat

Some compression methods (lossy) discard data; Decompression will not return the complete file,if original is lost no recovery

1.Data Integrity 2.Manage flow control 3.Prevent deadlock 4.Manage congestion 5.Error checking

1.Twisted pair (Shielded (STP) and Unshielded (UTP)) 2. Coaxial cables 3. Fiber optics

Protocols are a set of rules so that both sender and receiver are using same formats/methods to enable successful communication without errors.

Worldwide Interoperability for Microwave Access • Designed for large distance high speed internet access

1.Tunnelling protocols 2.Encryption protocols 3.The use of gateways;

•Wireless Fidelity Used in laptops/mobile devices to connect wirelessly to home network Allows relatively slow to fast data transmissions (depending on the vers

A message /data is broken into a number of parts which are sent independently over the optimum route for each packet.The individual parts are reassembled at des

virtual LAN is a logical group of workstations,servers and network devices that appear to be on same LAN despite their geo distri for security,traffic mgmt.

Authentication, Firewalls, Encryption ,Physical security ,WPA/WPA2

1.It is a smallest type of network. 2.It consits of connected devices in close proximity to the individual using them. 3.It is connected via Bluetooth /wireless

Application layer,Presentation layer,Session layer,Transport layer,Network layer, Datalink layer and Physical layer

A controlled private network allowing customers, vendors, suppliers and businesses to gain info about a specific company without granting access to entireorgn e

The Memory Address Register holds the memory location of data/instructions that need to be accessed(read/write)(fetch/store)

describes the type of network in which relatively small units of data called packets are routed through a n/w based on the destination address contained in pack

A packet is a bit of data that is sent for transmission over the digital network with a format.It has data and address.

Virtual Private Network gives privacy online .EX:Business ,organisations ,Govts etc. Data is encrypted and decrypted. It provides extra server for security.

Different parts of network use different media; Network congestion; Packets may take different routes; The receiver may be busy; Physical size of the network;

1.Resources are more widely available. 2.Supports file sharing for collaborative work 3.No central server