CCNA (200-301) , CCNP(ENARSI+ENCOR)

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Network Information Quiz

on June 26, 2023

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ROUTER

WHAT IS ROUTER 1. A ROUTER IS A NETWORKING DEVICE THAT FORWARDS DATA PACKETS BETWEEN COMPUTER NETWORKS. 2. ROUTERS PERFORM THE TRAFFIC DIRECTING FUNCTIONS BETWEEN NETWORKS AND ON THE GLOBAL INTERNET. 3. DATA SENT THROUGH A NETWORK, SUCH AS A WEB PAGE OR EMAIL, IS IN THE FORM OF DATA PACKETS. 1: NON MODULAR ROUTER A SERIES FIXED ROUTER IS CALLED NON MODULAR ROUTER . SERIES. 2500………2599 2: MODULAR ROUTER A SERIES CHANGABL ROUTER IA CALLED MODULAR ROUTER . SERIES. 2600,2800,3400,6500,720 ADDVANTAGES OF ROUTER 1. IT PROVIDES CONNECTION BETWEEN RWO DIS-SIMILAR TYPES OF NETWORK. 2. TRANSMISSION IS VERY HIGH. 3. IT INTERNALLY USE SOME ALGORITHM TO FINDOUT CONGETSION FREE PATH. 4. IT PROVIDE BOTH WIRE AND WIRED FACILITY. DISSADDVANTAGES OF ROUTER 1. ROUTER IS MORE EXPENSIVE COMPARE TO OTHER NETWORK DIVCES. 2. ROUTER ARE COMPLEX TO MAINTAIN. 3. SECURITY ISSUE. ROUTER DIAGRAM CISCO ROUTER CLI INTERFACE HIS 3 MODE 1.USER MODE Router> 2. ENABLE MODE

OSI Refrance Model

OSI MODEL 1. 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. 2. HIS MODEL REPRESENT A 7 LAYER 3. OSI MEANS (OPEN SYSTEMS INTERCOMMUNICATIO). 1. APPLICATION LAYER 1. THE APPLICATION LAYER IS USED BY END-USER SOFTWARE SUCH AS WEB BROWSERS AND EMAIL CLIENTS. IT PROVIDES PROTOCOLS THAT ALLOW SOFTWARE TO SEND AND RECEIVE INFORMATION AND PRESENT MEANINGFUL DATA TO USERS. 2. IT SENDS ITS DATA TO THE FORM OF THE PDU. PROTOCLS AND DEVICES USED IN LAYER THERE ARE SOME PROTOCOLS THAT WORK AT THE BACKEND OF THE APPLICATION LAYER. WHICH IN TURN WORKS AT THE APPLICATION LAYER. MANY DEVICES USE IT AT THE APPLICATION LAYER. PROTOCOLS FTP (FILE TRANSOFER PROTOCOL) DNS (DOMAIN NAME SYSTEM) HTTP (HYPER TEXT TRANSFOR PROTOCOL) DEVICES ALL END DEVICES USED IN LAYER. ___________ 2. PRESENTATION LAYER 1. THE PRESENTATION LAYER RECEIVED THE DATA FROM APPLICATION LAYER AND PROCESSES THE RAW DATA AND THEN COMPRESS

SWITCH

WHAT IS SWITCH 1. SWITCH IS A NETWORK DEVICE THAT CONNECT MULTIPAL COMPUTERS TOGETHER IN THE NETWORK. 2. SWITCH COMMUNICATION BASED ON MAC-ADDRESS. 3. SWITCH CAN EASILY INDETIFIE THAT WHICH DEVICE IS CONNECTED WHICH WITH PORT BY USING MAC-ADDRESS THAT WHY IT DELIVERED MESSAGE ON PARTICULAR DESTINATION MACHINE. 2 TYPES OF SWITCH . 1. UNMENADABLE SWITCH NO CONFIGRATION AND VERIFIVATION CAN BE DONE. THERE IS NO CONSOL PORT. PLUG AND PLAY IS USED AND CONNECT. 2. MENAGEABLE SWITCH : WE CAN CONFIGRATION AND VERIFICATION THROUGH SOME LAN PROTOCOL. IT HAS A CONSOLE PORT. LAN PROTOCOL: UTP,STP,ULAN. ADDVANTAGES OF SWITCH 1. IT GENERALLY USED TO UNICAST THE MESSAGE. 2. IT PROVIDES MORE SECURITY THAN HUB. 3. SWITCH SUPPORT FULL DUPLEX DATA TRANSMISSION MODE. 4. IF A NODE FAILS,THERE WILL BE NO EFFECT IN THE ENTIRE NETWORK. 5. IT IS USED TO SEND DATA PACKET BASED ON MAC-ADDRESS. DISSADVANTAGES OF SWITCH 1. IF SWITCH IS FAILED THEN ENTIRE NETWORK WILL BE FAILED. 2. IT IS MORE EXPENSIVE.

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