Which two statements about IPS signatures are true? (Choose two.)
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A. B. C. D. E.BE.
IPS (Intrusion Prevention System) signatures are pre-defined patterns and rules used by IPS to detect and prevent malicious activity in network traffic. These signatures are used to identify and block various types of attacks such as SQL injection, cross-site scripting (XSS), and buffer overflow attacks.
The two true statements about IPS signatures are:
B. Tuned signatures are built-in signatures whose parameters are adjusted.
Built-in IPS signatures are provided by the IPS vendor and are enabled by default. Tuned signatures are built-in signatures whose parameters, such as sensitivity and action, are customized to match the specific security policy of the organization. Tuning a signature allows an organization to optimize the detection and prevention of specific threats while minimizing false positives.
E. It is possible to define custom signatures.
Custom IPS signatures are rules or patterns that an organization creates to match specific threats unique to their network environment. Custom signatures are created by security professionals and network administrators who are familiar with the organization's security policy and network traffic. Custom signatures are created using the signature engine of the IPS vendor and can be shared with other IPS systems.
A. All of the built-in signatures are enabled by default is false.
Not all built-in signatures are enabled by default. Some signatures may be disabled by the IPS vendor to reduce false positives or improve performance. Administrators can enable or disable signatures based on the organization's security policy and the specific threats they want to detect and prevent.
C. Once the signature is removed from the sensing engine it cannot be restored is false.
Signatures can be removed and restored from the IPS sensing engine. IPS vendors provide tools and utilities to manage IPS signatures, including removing and restoring signatures. It is recommended to keep all signatures in the sensing engine, even if they are not being used, in case they are needed in the future.
D. It is recommended not to retire a signature that is not being used because then it cannot be restored is false.
IPS vendors provide tools and utilities to manage IPS signatures, including retiring signatures that are not being used. Retiring signatures reduces the processing load on the IPS and improves performance. Retired signatures can be restored if needed in the future.