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| Section | Objectives |
|---|---|
| Topic 1: Network Security Monitoring | - Traffic monitoring and anomaly detection - Log analysis and SIEM fundamentals |
| Topic 2: Threats and Vulnerabilities | - Network reconnaissance and exploitation techniques - Malware and attack vectors |
| Topic 3: Data and Application Security | - Data protection mechanisms and encryption basics - Endpoint and application hardening |
| Topic 4: Incident Response and Recovery | - Incident handling lifecycle - Disaster recovery and business continuity |
| Topic 5: Network Security Controls | - Secure network devices configuration - Firewalls, IDS/IPS, and network access control |
| Topic 6: Network Defense Fundamentals | - Security policies and procedures - Network security principles and architectures |
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NEW QUESTION # 353
Which of the following flag to set whether the scan sends TCP Christmas tree frame with the remote machine?
Each correct answer represents a part of the solution. Choose all that apply.
Answer: A,C,D
NEW QUESTION # 354
What is the best way to describe a mesh network topology?
Answer: D
Explanation:
A mesh network topology is characterized by each node (computer or device) being interconnected with every other node in the network. This allows for direct data transmission and multiple pathways for the data to route itself, enhancing reliability and robustness. In a mesh topology, the absence of a central hub means that the network can dynamically reroute data if any node fails, maintaining the network's overall connectivity.
References: This description is consistent with the core features of mesh networks as described in the Network Defender (CND) study materials and further explained in various educational resources on computer networks1234.
NEW QUESTION # 355
Which of the following is a technique for gathering information about a remote network protected by a firewall?
Answer: C
Explanation:
Explanation
Explanation:
Fire walking is a technique for gathering information about a remote network protected by a firewall. This technique can be used effectively to perform information gathering attacks. In this technique, an attacker sends a crafted packet with a TTL value that is set to expire one hop past the firewall. If the firewall allows this crafted packet through, it forwards the packet to the next hop. On the next hop, the packet expires and elicits an ICMP
"TTL expired in transit" message to the attacker. If the firewall does not allow the traffic, there should be no response, or an ICMP "administratively prohibited" message should be returned to the attacker. A malicious attacker can use firewalking to determine the types of ports/protocols that can bypass the firewall. To use firewalking, the attacker needs the IP address of the last known gateway before the firewall and the IP address of a host located behind the firewall. The main drawback of this technique is that if an administrator blocks ICMP packets from leaving the network, it is ineffective.
Answer option B is incorrect. Warchalking is the drawing of symbols in public places to advertise an open Wi-Fi wireless network. Having found a Wi-Fi node, the warchalker draws a special symbol on a nearby object, such as a wall, the pavement, or a lamp post. The name warchalking is derived from the cracker terms war dialing and war driving.
Answer option C is incorrect. War driving, also called access point mapping, is the act of locating and possibly exploiting connections to wireless local area networks while driving around a city or elsewhere. To do war driving, one needs a vehicle, a computer (which can be a laptop), a wireless Ethernet card set to work in promiscuous mode, and some kind of an antenna which can be mounted on top of or positioned inside the car.
Because a wireless LAN may have a range that extends beyond an office building, an outside user may be able to intrude into the network, obtain a free Internet connection, and possibly gain access to company records and other resources.
Answer option D is incorrect. War dialing or wardialing is a technique of using a modem to automatically scan a list of telephone numbers, usually dialing every number in a local area code to search for computers, Bulletin board systems, and fax machines. Hackers use the resulting lists for various purposes, hobbyists for exploration, and crackers - hackers that specialize in computer security - for password guessing.
NEW QUESTION # 356
The bank where you work has 600 windows computers and 400 Red Hat computers which primarily serve as bank teller consoles. You have created a plan and deployed all the patches to the Windows computers and you are now working on updating the Red Hat computers. What command should you run on the network to update the Red Hat computers, download the security package, force the package installation, and update all currently installed packages?
Answer: C
Explanation:
The up2date command was used in older versions of Red Hat Enterprise Linux to update installed packages to their latest available versions. The -d option downloads the packages without installing them, -f forces the installation of the package even if it is already installed, and -u updates all installed packages to the latest versions. However, it's important to note that up2date has been replaced by yum and more recently by dnf in the newer versions of Red Hat Enterprise Linux. For the scenario described, where security is a concern and the systems are likely to be running a more current version of Red Hat, the correct command would be yum update or dnf upgrade.
References: The information is based on the standard practices for updating Red Hat systems as per the Red Hat Customer Portal and the ECCouncil's Certified Network Defender course objectives. Specifically, the use of up2date is referenced from historical Red Hat documentation, while the replacement with yum and dnf is documented in more recent Red Hat Enterprise Linux system management guides1234.
NEW QUESTION # 357
Which of the following is a network point that acts as an entrance to another network?
Answer: C
NEW QUESTION # 358
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