IDS and IPS Characteristics

In a scenario where an IPS is deployed, what is the most critical implication of sensor overloading on network performance?

What is the key difference between a host-based IPS and a network-based IPS concerning encrypted traffic?

When considering the limitations of IDS, which of the following scenarios represents the most significant challenge in a modern network environment?

Assume a scenario where an IPS is configured to drop suspicious packets. What impact does this have on network traffic patterns?

Which of the following scenarios would necessitate the most rigorous examination of network topology and traffic patterns when deploying an IPS?

What key characteristic differentiates atomic signatures from composite signatures in IPS operations?

What are the relative advantages of using SPAN (Switched Port Analyzer) for intrusion detection in a complex network environment?

How does the use of customized policies in an IPS influence the ability to identify and respond to zero-day attacks, and what are the challenges associated with this approach?

How does the use of a 'honeypot' in network security contribute to understanding attack strategies, and what are the potential risks?

What is the potential impact of a false negative alarm in an intrusion prevention system (IPS), and how does it compare to the impact of a false positive?

An IPS, unlike an IDS, operates in an inline mode, enabling it to actively prevent malicious traffic from reaching its intended target.

A network-based IPS can effectively examine encrypted traffic, providing full visibility into potential threats hidden within secure communications.

Cisco’s IPS solutions, like the Catalyst 3500 Series IDSM-2, are primarily software-based, running as applications on existing hardware.

In SPAN configuration, ingress traffic refers to the traffic exiting a switch's interface, whereas egress traffic is the traffic entering the interface.

In IPS signature characteristics, 'type' refers to the specific action that the IPS takes upon detecting a match, such as blocking traffic or generating an alert.

Cisco Discovery Protocol (CDP) can be used to correlate IPS logs with network device information, enhancing network visibility and threat analysis.

Zero-day attacks are easily detected by signature-based IPS systems, as these systems rely on pre-existing patterns of known threats.

When selecting an IPS solution, the available amount of security automation is not a crucial factor, since manual analysis provides more accurate insights.

In anomaly-based detection, a composite signature type involves no state requirement, focusing solely on immediate deviations from a normal profile to identify threats.

The primary advantage of deploying an IDS is its ability to actively stop malicious traffic, thus directly preventing attacks from reaching network assets.

In a highly dynamic network environment, how does the 'sticky learning' feature in port security enhance network administration, and what are its limitations when devices frequently move between ports?

If a network administrator configures port security with a maximum MAC address count of 1 and violation mode set to 'restrict,' how does this affect network operation in a scenario where an IP phone is connected to a switchport, and a PC is connected to the phone?

In the context of endpoint security, how does the architecture of Cisco's Advanced Malware Protection (AMP) enhance threat detection and response, especially when dealing with polymorphic malware variants?

Given a scenario where a network is experiencing a slow but persistent degradation in performance, how can network administrators differentiate between a CAM table overflow attack and a broadcast storm, and what mitigation steps are specific to each?

In a scenario involving Cisco's Network Admission Control (NAC), how does posture assessment influence endpoint access to network resources, and what measures are necessary to ensure continuous compliance in a BYOD (Bring Your Own Device) environment?

How does an attacker exploit the vulnerabilities associated with DHCP in a network, and what steps can a network administrator take to safeguard against both DHCP starvation and DHCP spoofing attacks?

How does the implementation of VLAN Trunking Protocol (VTP) influence VLAN management across a large enterprise network, and what are the critical security considerations to prevent unauthorized VLAN modification or information disclosure?

What security measures should a network administrator implement to prevent unauthorized access to sensitive data transmitted over a wireless LAN (WLAN), and how do these measures mitigate common wireless security threats?

In an environment where both Email Security Appliance (ESA) and Web Security Appliance (WSA) are deployed, how does the integration between these components enhance protection against phishing attacks, and what specific data is shared between them?

Given a company's policy to implement hardware encryption on all laptops, what considerations should the IT department address to ensure data accessibility in the event of employee turnover or unforeseen circumstances?

Host-based firewalls, antivirus software, and host-based intrusion prevention systems (IPS) are the components of traditional endpoint security.

Advanced Malware Protection (AMP) focuses solely on pre-infection prevention, neglecting detection and remediation after a breach.

Talos, the threat intelligence team, does not play a role in email and web security.

Cisco NAC functions only to halt network access, not to provide remediation guidance.

Layer 2 vulnerabilities are not related to the data link layer of the OSI model.

Address spoofing attacks, STP attacks, and ARP attacks can be classified as examples of Layer 3 Attacks.

CAM table overflow attacks involve legitimate MAC addresses sent to a switch in order to reach capacity.

Upon a port security violation using 'shutdown' mode, the port immediately enters an active forwarding state.

DHCP starvation attacks aim to exhaust the pool of available DHCP addresses.

DHCP snooping inspects DHCP traffic and filters DHCP messages, which assists in preventing unauthorized DHCP servers from providing IP addresses to clients.