Advanced
Computer Networks
Q98 / 100
What is network time protocol (NTP) and why is time synchronization critical?
Correct! Well done.
Incorrect.
The correct answer is B) A protocol synchronizing clocks across networked systems to UTC using a hierarchy of time servers, critical for security certificates, distributed systems, and logging
B
Correct Answer
A protocol synchronizing clocks across networked systems to UTC using a hierarchy of time servers, critical for security certificates, distributed systems, and logging
Explanation
NTP (RFC 5905) achieves millisecond accuracy using hierarchical stratum levels. Distributed systems (Spanner, Kafka) require synchronized clocks for ordering. TLS certificates fail if system time is wrong. PTP achieves nanosecond accuracy.
Progress
98/100