Configuring NTP in Client Mode on a Network Device

Configure NTP in Client Mode

Question

Which two tasks must be performed to configure NTP to a trusted server in client mode on a single network device? (Choose two.)

Answers

Explanations

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A. B. C. D. E.

AC.

To configure authentication, perform this task in privileged mode: Step 1: Configure an authentication key pair for NTP and specify whether the key will be trusted or untrusted.

Step 2: Set the IP address of the NTP server and the public key.

Step 3: Enable NTP client mode.

Step 4: Enable NTP authentication.

Step 5: Verify the NTP configuration.

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4000/8-2glx/configuration/guide/ntp.html

Sure, I can provide a detailed explanation of the two tasks that must be performed to configure NTP to a trusted server in client mode on a single network device.

Task 1: Specify the IP address of the NTP server In order to configure NTP to use a trusted server in client mode, the network device needs to be able to communicate with an NTP server. The first step is to specify the IP address of the NTP server. This is typically done using the "ntp server" command, followed by the IP address of the NTP server.

For example, if the IP address of the NTP server is 192.0.2.1, the command to specify the NTP server would be:

ntp server 192.0.2.1

This command tells the network device to use the specified IP address as its NTP server.

Task 2: Verify the time zone It's important to ensure that the network device is configured with the correct time zone. This ensures that the time reported by the device is accurate for the local time zone. The time zone can be verified and configured using the "clock timezone" command.

For example, if the local time zone is Eastern Standard Time (EST), the command to set the time zone would be:

lua
clock timezone EST -5

This command tells the network device that the local time zone is EST and that it is 5 hours behind Coordinated Universal Time (UTC).

Note that the other options listed in the answer choices are not required to configure NTP to use a trusted server in client mode on a single network device:

  • NTP authentication (Answer A) is a feature used to ensure that NTP messages are coming from trusted sources. This feature is optional and is not required to configure NTP to use a trusted server in client mode on a single network device.
  • Setting the NTP server private key (Answer D) is a feature used to secure NTP communication between servers and clients. This feature is optional and is not required to configure NTP to use a trusted server in client mode on a single network device.
  • Disabling NTP broadcasts (Answer E) is a feature used to prevent NTP packets from being broadcast to all devices on the network. This feature is optional and is not required to configure NTP to use a trusted server in client mode on a single network device.