What is the size of the AH in bits with respect to width?
Answer(s): D
The Authentication Header (AH) in the context of IPsec has a fixed header portion of 24 bits and a mutable part that can vary, but when considering the fixed structure of the AH itself, the width is typically considered to be 32 bits at its core structure for basic operations in providing integrity and authentication, without confidentiality.
RFC 4302, "IP Authentication Header".
Which of the following names represents inbound filtering?
Ingress filtering is a method used in network security to ensure that incoming packets are allowed or blocked based on a set of security rules.This type of filtering is often implemented at the boundaries of networks to prevent unwanted or harmful traffic from entering a more secure internal network. The term "ingress" refers to traffic that is entering a network boundary, whereas "egress" refers to traffic exiting a network.ReferenceCisco Networking Academy Program: Network Security."Understanding Ingress and Egress Filtering," Network Security Guidelines, TechNet.
Which of the following are required functions of information management?
Answer(s): A
Information management within the context of network security involves several critical functions that ensure data is correctly handled for security operations. These functions include:Normalization: This process standardizes data formats from various sources to a common format, making it easier to analyze systematically.Correlation: This function identifies relationships between disparate pieces of data, helping to identify patterns or potential security incidents.Data enrichment: Adds context to the collected data, enhancing the information with additional details, such as threat intelligence.All these functions are essential to effective information management in security systems, allowing for more accurate monitoring and faster response to potential threats.Reference"Data Enrichment and Correlation in SIEM Systems," Security Information Management Best Practices."Normalization Techniques for Security Data," Journal of Network Security.
What type of protocol is considered connection-oriented?
Answer(s): B
TCP (Transmission Control Protocol) is a connection-oriented protocol used in the majority of internet communications.Connection-oriented protocols like TCP require a connection to be established between the communicating devices before data is transmitted. This ensures reliable and ordered delivery of data.TCP manages this by establishing a handshake mechanism (TCP three-way handshake) to set up the connection prior to transmitting data and properly terminating the connection once the communication session has completed.Reference"TCP/IP Illustrated, Volume 1: The Protocols" by W. Richard Stevens. Postel, J., "Transmission Control Protocol," RFC 793.
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