A security policy requires that NTP clients only accept time from authenticated servers. An administrator has configured the NTP server with authentication key 10. What additional configuration is required on the client to meet this policy?

Configure the same key and enable NTP authentication

Use the 'ntp authenticate' command only

Configure a different key on the client

Use 'ntp server' with the 'key' option but do not enable authentication

Which command shows the list of NTP servers and peers that a Cisco IOS device is configured with or has discovered?

show running-config | include ntp

A security team requires NTP authentication on all devices. An administrator configures the router with 'ntp authenticate', 'ntp authentication-key 10 md5 Key10', and 'ntp trusted-key 10'. The router is also configured with 'ntp server 192.168.1.1 key 10'. However, the router fails to synchronize. What is the most likely cause?

The server is not configured with the same key and authentication settings

The 'ntp trusted-key' command is not needed

The router must be configured as an NTP master

The router's clock is too far off from the server

What is the purpose of NTP authentication?

To compress NTP packets to reduce bandwidth usage

To allow NTP to work over firewalls

To ensure that NTP messages are not modified and come from a trusted source

To encrypt the NTP traffic to prevent eavesdropping

After configuring NTP authentication on a router, you want to verify that authentication is active and that the router is using the correct key. Which command displays the authentication status and the key being used?

show running-config | include ntp

CiscoCertified Network Associate (CCNA)

Domain 4Objective 2

4.2 Configure and Verify NTP Operating in a Client and Server Mode 200-301 Practice Questions (Page 5)

Part of the IP Services domain, which accounts for 10% of the 200-301 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~5–8 in this domain), expect 1–1 from this objective — we provide 32 practice questions to prepare you well beyond it. (estimate)

32questions here

7free pages

5concepts

10%of the exam

Questions 21–25

21application · medium
A security policy requires that NTP clients only accept time from authenticated servers. An administrator has configured the NTP server with authentication key 10. What additional configuration is required on the client to meet this policy?
Select an answer first
22foundation · easy
Which command shows the list of NTP servers and peers that a Cisco IOS device is configured with or has discovered?
Select an answer first
23expert · hard
A security team requires NTP authentication on all devices. An administrator configures the router with 'ntp authenticate', 'ntp authentication-key 10 md5 Key10', and 'ntp trusted-key 10'. The router is also configured with 'ntp server 192.168.1.1 key 10'. However, the router fails to synchronize. What is the most likely cause?
Select an answer first
24foundation · easy
What is the purpose of NTP authentication?
Select an answer first
25application · medium
After configuring NTP authentication on a router, you want to verify that authentication is active and that the router is using the correct key. Which command displays the authentication status and the key being used?
Select an answer first

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