Virtual Labs

What is the primary purpose of Network Time Protocol (NTP)?

a: To encrypt network data Explanation

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b: To synchronize clocks of computer systems over a network Explanation

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c: To compress data for faster transmission Explanation

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d: To establish secure communication channels Explanation

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Why is clock synchronization important in distributed systems?

a: It ensures faster data transmission Explanation

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b: It helps in maintaining data consistency Explanation

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c: It enhances data compression Explanation

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d: It simplifies the network topology Explanation

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Which port does NTP typically use?

a: 80 Explanation

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b: 123 Explanation

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c: 443 Explanation

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d: 21 Explanation

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Which protocol can NTP use to enhance security?

a: HTTPS Explanation

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b: SSH Explanation

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c: SSL/TLS Explanation

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d: MD5 Explanation

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What is the reference clock in NTP?

a: The clock on the local system Explanation

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b: A specific time server designated by the user Explanation

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c: A high-precision time source used as a reference Explanation

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d: The clock on the NTP server Explanation

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What is the stratum level in NTP?

a: The distance from the reference clock Explanation

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b: The bandwidth available for synchronization Explanation

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c: The time delay in synchronization Explanation

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d: The security level of the NTP server Explanation

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What is the stratum level of the reference clock in NTP?

a: 0 Explanation

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b: 1 Explanation

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c: 2 Explanation

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d: 3 Explanation

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What is the stratum level of a server directly synchronized to the reference clock?

a: 0 Explanation

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b: 1 Explanation

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c: 2 Explanation

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d: 3 Explanation

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Physical Clocks, NTP, and variations