CCNA Security Question of the Week: Synchronize Clocks

What protocol is responsible to synchronize clocks in a network?

A. NTP
B. BGP
C. CDP
D. DTP

Reveal Answer

Answer: A.

BGP (Border Gateway Protocol) is a routing protocol that makes the Internet work; CDP (Cisco Discovery Protocol) is used to find other Cisco devices connected locally; DTP (Dynamic Trunking Protocol) is used to negotiate VLAN trunks. NTP (Network Time Protocol) is used to pull and distribute time across the network.

 

Related Course
IINS 2.0 — Implementing Cisco  IOS Network Security

Related Certifications
CCNA Security
CCNP Security

Related Resources
Cisco White Papers

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