Networks Flashcards
Network and ICT systems
Two types of encryption systems in networks.
Symmetric or shared key
Asymmetric or public key
Two main requirements of cryptography
It should be computationally feasible to derive the plaintext from the cyphertext without knowledge of decryption key.
It should be computationally feasible to derive the cyphertext from the plaintext with out knowledge of the decryption key.
What is the he formula for calculating number of keys in symmetric network
N(n-1)/2
What is 401 code mean?
Unauthorized
What is 403 code mean?
Forbidden
What is 400 code mean?
Bad request
What is 404 code mean?
Page not found
What is 500 code mean?
Internal Server Error
What is 502 code mean?
Bad gateway
What is 503 code mean?
Service Unavailable
What is CORS ?
Cross origin resource sharing. This occurs when a web application execute cross-origin HTTP request when it request resource that has an different origin (domain , protocol, etc) from its own origin.
