RPC kya hota hai?

1.  Client-Server Model: RPC client aur server ke beech ek client-server model establish karta hai, jisme client ek remote server par sthit procedure ko call karta hai.
2.  Stub: RPC implementation mein, client aur server ke beech ek intermediate layer hota hai, jo ki "stub" ke naam se jaana jata hai. Client-side stub local function calls ko remote calls mein convert karta hai aur server-side stub remote calls ko actual function calls mein convert karta hai.
3.  Serialization: Parameters aur return values ko network par transmit karne ke liye, data ko serialize kiya jata hai, taki woh network par easily travel kar sake.
4.  Transparency: RPC tries to provide transparency, jisse client ko lagta hai ki woh local machine par hi function call kar raha hai, jabki asli me call remote machine par hota hai.

Remote Procedure Call (RPC) ek communication protocol hai, jiska use ek computer program ya process, doosre computer program ya process ke saath communication ke liye kiya jata hai, jo ki network ke through ho sakta hai. RPC ek programming paradigm hai, jisse ek program local machine (jisme woh run ho raha hai) ke alawa bhi kisi remote machine par sthit program se communication kar sakta hai.

RPC ka basic concept yeh hai ki ek program ek remote server par execute hone wale ek function (procedure) ko call kar sakta hai, jaise ki woh local machine par karta hai. Is process ko seamlessly aur transparently implement karne ke liye, RPC system ek local call jaise lagne wale mechanism ka use karta hai, jabki asli me ye call remote machine par hota hai.

Kuch key points RPC ke baare mein hain:

1. Client-Server Model: RPC client aur server ke beech ek client-server model establish karta hai, jisme client ek remote server par sthit procedure ko call karta hai.
2. Stub: RPC implementation mein, client aur server ke beech ek intermediate layer hota hai, jo ki "stub" ke naam se jaana jata hai. Client-side stub local function calls ko remote calls mein convert karta hai aur server-side stub remote calls ko actual function calls mein convert karta hai.
3. Serialization: Parameters aur return values ko network par transmit karne ke liye, data ko serialize kiya jata hai, taki woh network par easily travel kar sake.
4. Transparency: RPC tries to provide transparency, jisse client ko lagta hai ki woh local machine par hi function call kar raha hai, jabki asli me call remote machine par hota hai.

RPC ke kuch examples hain DCOM (Distributed Component Object Model), Java RMI (Remote Method Invocation), aur SOAP (Simple Object Access Protocol) jo SOAP-RPC ke roop mein bhi jaana jaata hai.