During a technical audit of a heterogeneous enterprise application stack, a network analyst is reviewing how data payloads are prepared for secure transmission across dissimilar host architectures. The specification requires data syntax normalization, character encoding conversion, and payload encryption prior to session establishment. Which of the following operational functions are performed strictly at Layer 6 (Presentation Layer) of the OSI model? (Select TWO)
- Converting character encodings between incompatible formats, such as translating EBCDIC to ASCII or UTF-8Answer
- Performing cryptographic data encryption and decryption, as well as application payload compressionAnswer
- CEstablishing dialogue control checkpoints and managing half-duplex or full-duplex session synchronization
- DMultiplexing distinct process communication streams using TCP/UDP port socket pairs and managing segment sequence numbers
Answer
The Presentation Layer (Layer 6) is responsible for data translation (such as character set conversion between EBCDIC and ASCII/UTF-8) and data formatting operations including encryption/decryption and compression.
The Presentation Layer (Layer 6) serves as the syntax translator for the OSI model. Its core responsibilities include character code translation (such as ASCII to EBCDIC or UTF-8), data structure formatting (such as XML/JSON syntax normalization), data compression, and cryptographic encryption/decryption of application data.
Step-by-Step Solution
Key Concept
OSI Layer 6 (Presentation Layer) Data Formatting and Encryption Functions
Estimated Time:2m 0s