Match the common network technology or protocol with the description. (Not all options are used.)

- NTP --> uses a hierarchy of authoritative time sources to send time information between devices on the network
- DNS --> used by attackers to exfiltrate data in traffic disguised as normal client queries
- Syslog --> uses UDP port 514 for logging event messages from network devices and endpoints
- ICMP --> used by attackers to identify hosts on a network and the structure of the network
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