IP Services - Foundation Topics
8 important questions on IP Services - Foundation Topics
What are 5 reasons it is important to have time synchronized between network devices?
2. Encryption key exchanges
3. Checking validity of certificates based on expiration date and time
4. Correlation of security-based events across multiple routers.
5. Troubleshooting multiple network devices.
How does NTP identify the accuracy of the time clock source?
Max is Stratum 15
What port and protocol are used by NTP?
UDP Protocol
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What are NTP Stratum 1 servers?
Is hop count considered when defining the Stratum number of a NTP client?
It is the Servers Stratum number plus 1.
What command is used on a NTP client to configure the NTP server?
Optionally the prefer keyword can be used to prefer it when configuring multiple
Optionally the Source keyword can be used to specify the source interface, which is used just for the IP address.
When can a Cisco Router act as a NTP server?
When a Cisco router is acting as a NTP server it is possible to manually change the Stratum number. What is the command to do this?
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