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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Network Defense Management | 10% | - Foundation of defense-in-depth - Cyberattacks and defense strategies |
| Topic 2: Enterprise Virtual, Cloud, and Wireless Network Protection | 15% | - Virtualization/container security - Cloud security (IaaS/PaaS/SaaS) - Wireless hardening |
| Topic 3: Network Perimeter Protection | 10% | - Secure gateways - Segmentation - Firewalls/IDS/IPS concepts |
| Topic 4: Incident Detection | 10% | - Triage - Alerting - Baselining - Traffic and log monitoring/analysis |
| Topic 5: Endpoint Protection | 20% | - Mobile/IoT security baselines and controls - Windows/Linux hardening |
| Topic 6: Incident Response and Forensic Investigation | 10% | - Containment/eradication - Forensic touchpoints - Documentation - First responder steps |
| Topic 7: Incident Prediction | 15% | - Attack surface analysis - Indicators (IoC/IoA) - Risk management - Threat intel (CTI) |
| Topic 8: Application and Data Protection | 10% | - Data security controls - Secure application practices - Encryption basics |
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NEW QUESTION # 712
During a post-incident investigation of a service outage, cybersecurity analyst Ethan traces the root cause to a surge in traffic aimed at a public DNS provider. The traffic was generated in a synchronized manner by thousands of smart streetlight sensors installed across various cities.
These devices, although operational for months without incident, were found to be communicating with unknown command sources and flooding external endpoints during the incident. Which fundamental issue enabled this behavior across multiple networks?
Answer: A
Explanation:
IoT devices such as smart sensors are often deployed with continuous internet connectivity and operate unattended for long periods without monitoring, patching, or strict management controls.
This long-term unattended connectivity makes them susceptible to compromise and allows attackers to remotely control them through command-and-control infrastructure. Once compromised, large numbers of such devices can be coordinated to generate synchronized traffic, forming an IoT-based botnet capable of launching distributed attacks like the DNS traffic surge described.
NEW QUESTION # 713
What should an administrator do while installing a sniffer on a system to listen to all data transmitted over the network?
Answer: B
Explanation:
In the context of network sniffing, promiscuous mode is a specific setting for a network interface controller (NIC) that allows the NIC to pass all traffic it receives to the central processing unit, rather than just the frames that the NIC is specifically programmed to receive. This mode is essential for network sniffers, as it enables them to capture all network traffic, including packets not addressed to the NIC's MAC address. When a NIC is not in promiscuous mode, it will ignore packets not intended for its MAC address.
References: The explanation provided aligns with standard networking practices and the information available from various security resources, including the Information Security Stack Exchange1 and TechTarget2. These sources confirm the role of promiscuous mode in enabling a network device to intercept and read all network packets that arrive, which is necessary for the operation of network sniffers.
NEW QUESTION # 714
Which of the following network scanning tools is a TCP/UDP port scanner that works as a ping sweeper and hostname resolver?
Answer: D
NEW QUESTION # 715
Which of the following is a free security-auditing tool for Linux?
Answer: C
NEW QUESTION # 716
Which protocol would the network administrator choose for the wireless network design. If he needs to satisfy the minimum requirement of 2.4 GHz, 22 MHz of bandwidth, 2 Mbits/s stream for data rate and use DSSS for modulation.
Answer: C
Explanation:
The 802.11b protocol is the correct choice for the network administrator to satisfy the specified requirements. This protocol operates in the 2.4 GHz frequency band, uses Direct-Sequence Spread Spectrum (DSSS) for modulation, and provides a data rate of up to 11 Mbits/s, which is well above the minimum requirement of 2 Mbits/s. The 802.11b standard also uses a channel width of 22 MHz, which matches the given specification. It was designed to be backward compatible with the original 802.11 standard and is widely used due to its range and compatibility with many devices.
Reference:
IEEE 802.11b-1999 standard documentation.
Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications1.
NEW QUESTION # 717
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