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The EC-Council Certified Network Defender (CND) certification exam is a vendor-neutral exam that is recognized globally. 312-38 exam is designed to test the candidate's knowledge of network security principles and to validate their ability to implement and manage network security controls. 312-38 Exam is also designed to test the candidate's ability to perform network security assessments and to identify and mitigate network security threats and vulnerabilities.

EC-COUNCIL EC-Council Certified Network Defender CND Sample Questions (Q45-Q50):

NEW QUESTION # 45
How is the chip-level security of an IoT device achieved?

A. By turning off the device when not needed or not in use
B. By changing the password of the router
C. By closing insecure network services
D. By encrypting the JTAG interface

Answer: D

Explanation:
Chip-level security for an IoT device is achieved by implementing measures that protect the device's hardware, particularly against physical attacks and unauthorized access to debugging ports. Encrypting the JTAG (Joint Test Action Group) interface is a critical step in securing an IoT device at the chip level. The JTAG interface is a standard for testing PCBs (Printed Circuit Boards) and widely used for debugging embedded systems. If left unsecured, it can be exploited to reverse engineer the device firmware or to inject malicious code. Encryption of the JTAG interface ensures that even if attackers gain physical access to the JTAG port, they cannot use it to compromise the device without the encryption key.

NEW QUESTION # 46
Which command list all ports available on a server?

A. sudo apt netstate -Is tunlp
B. sudo ntstat -Is tunlp
C. sudo netstat -tunlp
D. sudo apt nst -tunlp

Answer: C

Explanation:
The netstat command is used to display network connections, routing tables, interface statistics, masquerade connections, and multicast memberships. To list all ports available on a server, including both TCP and UDP, along with the listening state and associated program names, the -tunlp options are used:
* -t shows TCP ports.
* -u shows UDP ports.
* -n displays addresses and port numbers in numerical form.
* -l shows only listening sockets.
* -p shows the PID and name of the program to which each socket belongs.
Therefore, the command sudo netstat -tunlp effectively lists all ports available on a server with detailed information.
References:
* EC-Council Certified Network Defender (CND) Study Guide
* Linux netstat command documentation

NEW QUESTION # 47
John works as an Incident manager for TechWorld Inc. His task is to set up a wireless network for his organization. For this, he needs to decide the appropriate devices and policies required to set up the network.
Which of the following phases of the incident handling process will help him accomplish the task?

A. Recovery
B. Eradication
C. Preparation
D. Containment

Answer: C

Explanation:
Preparation is the first step in the incident handling process. It includes processes like backing up copies of all key data on a regular basis, monitoring and updating software on a regular basis, and creating and implementing a documented security policy. To apply this step a documented security policy is formulated that outlines the responses to various incidents, as a reliable set of instructions during the time of an incident. The following list contains items that the incident handler should maintain in the preparation phase i.e. before an incident occurs:
Establish applicable policies
Build relationships with key players
Build response kit
Create incident checklists
Establish communication plan
Perform threat modeling
Build an incident response team
Practice the demo incidents
Answer option A is incorrect. The Containment phase of the Incident handling process is responsible for supporting and building up the incident combating process. It ensures the stability of the system and also confirms that the incident does not get any worse. The Containment phase includes the process of preventing further contamination of the system or network, and preserving the evidence of the contamination.
Answer option D is incorrect. The Eradication phase of the Incident handling process involves the cleaning-up of the identified harmful incidents from the system. It includes the analyzing of the information that has been gathered for determining how the attack was committed. To prevent the incident from happening again, it is vital to recognize how it was conceded out so that a prevention technique is applied.
Answer option B is incorrect. Recovery is the fifth step of the incident handling process. In this phase, the Incident Handler places the system back into the working environment. In the recovery phase the Incident Handler also works with the questions to validate that the system recovery is successful. This involves testing the system to make sure that all the processes and functions are working normal. The Incident Handler also monitors the system to make sure that the systems are not compromised again. It looks for additional signs of attack.

NEW QUESTION # 48
Which of the following is a tool that runs on the Windows OS and analyzes iptables log messages to detect
port scans and other suspicious traffic?

A. NetRanger
B. Hping
C. Nmap
D. PSAD

Answer: D

Explanation:
PSAD is a tool that runs on the Windows OS and analyzes iptables log messages to detect port scans and
other suspicious traffic. It includes many signatures from the IDS to detect probes for various backdoor
programs such as EvilFTP, GirlFriend, SubSeven, DDoS tools (mstream, shaft), and advanced port scans
(FIN, NULL, XMAS). If it is combined with fwsnort and the Netfilter string match extension, it detects most of
the attacks described in the Snort rule set that involve application layer data.
Answer option C is incorrect. NetRanger is the complete network configuration and information toolkit that
includes the following tools: Ping tool, Trace Route tool, Host Lookup tool, Internet time synchronizer, Whois
tool, Finger Unix hosts tool, Host and port scanning tool, check multiple POP3 mail accounts tool, manage
dialup connections tool, Quote of the day tool, and monitor Network Settings tool. These tools are integrated in
order to use an application interface with full online help. NetRanger is designed for both new and experienced
users. This tool is used to help diagnose network problems and to get information about users, hosts, and
networks on the Internet or on a user computer network. NetRanger uses multi-threaded and multi-connection
technologies in order to be very fast and efficient.
Answer option D is incorrect. Nmap is a free open-source utility for network exploration and security auditing. It
is used to discover computers and services on a computer network, thus creating a "map" of the network. Just
like many simple port scanners, Nmap is capable of discovering passive services. In addition, Nmap may be
able to determine various details about the remote computers. These include operating system, device type,
uptime, software product used to run a service, exact version number of that product, presence of some
firewall techniques and, on a local area network, even vendor of the remote network card. Nmap runs on Linux,
Microsoft Windows, etc.

NEW QUESTION # 49
Simon had all his systems administrators implement hardware and software firewalls to ensure network security. They implemented IDS/IPS systems throughout the network to check for and stop any unauthorized traffic that may attempt to enter. Although Simon and his administrators believed they were secure, a hacker group was able to get into the network and modify files hosted on the company's website. After searching through the firewall and server logs, no one could find how the attackers were able to get in. He decides that the entire network needs to be monitored for critical and essential file changes. This monitoring tool alerts administrators when a critical file is altered. What tool could Simon and his administrators implement to accomplish this?

A. They need to use Nessus
B. They can implement Wireshark
C. They could use Tripwire
D. Snort is the best tool for their situation

Answer: C

NEW QUESTION # 50
......

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