Q21 .
What Is A Lan Network Define Some Details ?
Answer :
Layer 2 Switches Only Operate At The Data Link Layer (Layer 2) Of The OSI Model,
Layer 2 Switches Forward Data Frames Based On The MAC Addresses Of The Source And Destination Devices. They Do Not Look At The IP Addresses Of The Devices.
LAYER 2 SWITCHES IS LESS EXPENSIVE AND EASY TO CONFIGURED.
2960 SERIES SWITCH IS CALLED A LAYER 2 SWITCH.
ANOTHER NAME LAYER 2 SWITCH IS ACCESS LAYER SWITCH.
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The Main Difference Between Layer 2 And Layer 3 Switches Is That Layer 2 Switches Only Operate At The Data Link Layer (Layer 2) Of The OSI Model,
While Layer 3 Switches Operate At Both The Data Link Layer And The Network Layer (Layer 3) Of The OSI Model.
Layer 2 Switches Forward Data Frames Based On The MAC Addresses Of The Source And Destination Devices. They Do Not Look At The IP Addresses Of The Devices.
Layer 3 Switches, On The Other Hand, Forward Data Packets Based On The IP Addresses Of The Source And Destination Devices. They Can Also Route Traffic Between Different Networks.
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Q24.
Which Series Of Switch Is Called A Layer 3 Switch ?
Answer :
While Layer 3 Switches Operate At Both The Data Link Layer And The Network Layer (Layer 3) Of The OSI Model.
Layer 3 Switches, On The Other Hand, Forward Data Packets Based On The IP Addresses Of The Source And Destination Devices. They Can Also Route Traffic Between Different Networks.
3560 AND 3650 AND 3750 SERIES SWITCH IS CALLED A LAYER 3 SWITCH.
ANOTHER NAME LAYER 3 SWITCH IS MULTILAYER LAYER SWITCH.
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Q25.
Which Layer In Osi Refrence Model. Just Define Name ?
Answer :
ISO REPRESENT A 1947 MORE THAN WORK AND AGAIN REPRESENTS A ISO IN 1977 AND MORE THAN WORK AN REPRESENT IN 1983 A OSI REDFRENCE MODEL.
HIS MODEL REPRESENT A 7 LAYER. OSI MEANS (OPEN SYSTEMS INTERCOMMUNICATIO).
TCP/IP MODEL IS REAL LIFE IMPLEMENT.
TCP/IP MODEL LAYER IS. 1. APPLICATION LAYER, 2. TRANSPORT LAYER, 3. INTERNET LAYER, 4. LINK LAYER
IN A STAR TOPOLOGY, ALL END DEVICES ARE
CONNECTED TO A CENTRALIZED NETWORK DEVICE.
THAT CENTRALIZED DEVICE CAN BE A ROUTER OR
HUB OR SWITCH.
THE SET OF RULES AND REGULATION THEY IS USED FOR
COMMUNICATION IS CALLED PROTOCOL.
IN COMPUTER NETWORKS, PROTOCOLS ARE USED TO ENSURE THAT DATA
IS TRANSMITTED RELIABLY AND EFFICIENTLY BETWEEN DEVICES.
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