200-201 · Question #175
Which data type is necessary to get information about source/destination ports?
The correct answer is C. connectivity data. To obtain information about source and destination ports, connectivity data is necessary as it describes the fundamental parameters of network connections.
Question
Which data type is necessary to get information about source/destination ports?
Options
- Astatistical data
- Bsession data
- Cconnectivity data
- Dalert data
How the community answered
(33 responses)- B6% (2)
- C91% (30)
- D3% (1)
Why each option
To obtain information about source and destination ports, connectivity data is necessary as it describes the fundamental parameters of network connections.
Statistical data involves aggregated metrics and summaries, which do not inherently provide the specific source and destination port numbers of individual connections.
Session data describes an active communication session, which does include port information, but 'connectivity data' is a broader term that encompasses all connection-related metadata, whether active sessions or connection attempts, making it a more fundamental data type for port information.
Connectivity data, often represented as flow records (e.g., NetFlow, IPFIX), directly contains the 5-tuple information including source IP, destination IP, protocol, source port, and destination port, which is essential for understanding network communication paths.
Alert data typically indicates a security event or anomaly and may reference port numbers within the alert description, but it is not the primary data type for systematically collecting comprehensive port usage information.
Concept tested: Network data types for port information
Source: https://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ios-netflow/prod_white_paper0900aecd80406232.html
Topics
Community Discussion
No community discussion yet for this question.