In Sguil, an alert typically includes which of the following five-tuple components?

In Sguil, an alert typically includes which of the following five-tuple components?

• A. Timestamps and user IDs
• B. Source IP address, Destination IP address, Source Port, Destination Port, and IP Protocol Number
• C. MAC addresses and VLAN
• D. File names and sizes

Answer: (B)

A network alert is identified by a unique flow, which is defined by five elements: the source IP address, the destination IP address, the source port, the destination port, and the IP protocol number. These five fields together distinguish one specific conversation from all others on the network. In Sguil, alerts are tied to this flow information so analysts can correlate events across sensors and time, trace which hosts and services were involved, and understand the exact traffic that triggered the alert. For example, a TCP connection from 10.0.0.5:34567 to 203.0.113.12:80 uses the TCP protocol and would be represented by those exact five values, forming the canonical signature of that communication. Timestamps and user IDs are metadata about the event, not the network flow signature. MAC addresses and VLAN are layer 2 details, not the identifying factors of a specific IP-based connection. File names and sizes pertain to host or file activity, not the network flow.

A network alert is identified by a unique flow, which is defined by five elements: the source IP address, the destination IP address, the source port, the destination port, and the IP protocol number. These five fields together distinguish one specific conversation from all others on the network. In Sguil, alerts are tied to this flow information so analysts can correlate events across sensors and time, trace which hosts and services were involved, and understand the exact traffic that triggered the alert. For example, a TCP connection from 10.0.0.5:34567 to 203.0.113.12:80 uses the TCP protocol and would be represented by those exact five values, forming the canonical signature of that communication.

Timestamps and user IDs are metadata about the event, not the network flow signature. MAC addresses and VLAN are layer 2 details, not the identifying factors of a specific IP-based connection. File names and sizes pertain to host or file activity, not the network flow.