BPSC TRE Computer Networks – Full Length Test 2

An 'A' record maps a hostname to a 32-bit IPv4 address, while a 'quad-A' ('AAAA') record maps a hostname to a 128-bit IPv6 address.

HTTP 301 is a redirection code indicating that the requested resource has been assigned a new permanent URI.

GET, PUT, and DELETE are all defined as idempotent by HTTP semantics: repeating an identical request has the same intended effect as making it once. Therefore more than one of A-C is correct.

For confidentiality in public key cryptography, plaintext is encrypted with the recipient's public key (Bob's Public Key) and can only be decrypted by the recipient's private key (Bob's Private Key).

A digital signature is created by hashing the document and encrypting the hash using the sender's private key. Anyone with the sender's public key can verify authenticity.