Syslog Forwarding in CEF Format

Correct Answer: A

Every syslog message is structured based upon the below given schema:

<Time> <Host> <CEF payload>

The CEF payload is based upon the below-given structure but the mapping for each and every field varies based on the type of messages (Alert created, Alert closed, Windows Event).

Option A is correct.

<Time> <Host> <CEF payload> is the right schema for Syslog messages.

Option B is incorrect.

The given schema is incorrect.

Option C is incorrect.

The right schema is <Time> <Host> <CEF payload>.

Option D is incorrect.

The given schema is incorrect.

Reference:

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In the context of Azure Stack Hub infrastructure, the syslog forwarding sends/forwards the messages formatted in CEF (Common Event Format). CEF is a standard format for logging network security events, and it is commonly used in security information and event management (SIEM) systems.

The CEF format consists of a header and a payload. The header contains information such as the version of the CEF format, the device that generated the event, and the severity level of the event. The payload contains the details of the event, such as the name of the event, the source and destination IP addresses, and any relevant timestamp information.

In order to choose the right schema structure for the syslog messages, we need to understand how the messages are formatted. The options given are:

A. <Time> <Host> <CEF payload> B. <Host> <Time> <CEF payload> C. <CEF payload> <Time> <Host> D. <CEF payload> <Host> <Time>

The correct answer is option B: <Host> <Time> <CEF payload>. This is because the host information is the most important piece of information in identifying where the event occurred, and therefore should come first. The timestamp information comes next, followed by the CEF payload containing the details of the event.

Option A is incorrect because it puts the timestamp information first, which is less important for identifying the source of the event. Option C is also incorrect because it puts the payload information first, which is less important for identifying the source of the event. Option D is incorrect because it puts the payload information first, which is less important for identifying the time the event occurred.