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| Section | Objectives |
|---|---|
| Topic 1: Network Security Controls | - Firewalls, IDS/IPS, and network access control - Secure network devices configuration |
| Topic 2: Data and Application Security | - Data protection mechanisms and encryption basics - Endpoint and application hardening |
| Topic 3: Network Security Monitoring | - Traffic monitoring and anomaly detection - Log analysis and SIEM fundamentals |
| Topic 4: Incident Response and Recovery | - Disaster recovery and business continuity - Incident handling lifecycle |
| Topic 5: Threats and Vulnerabilities | - Malware and attack vectors - Network reconnaissance and exploitation techniques |
| Topic 6: Network Defense Fundamentals | - Security policies and procedures - Network security principles and architectures |
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NEW QUESTION # 273
Which of the following is an intrusion detection system that reads all incoming packets and tries to find suspicious patterns known as signatures or rules?
Answer: B
Explanation:
A network intrusion detection system (NIDS) is an intrusion detection system that tries to detect malicious activity such as denial of service attacks, port scans or even attempts to crack into computers by monitoring network traffic. A NIDS reads all the incoming packets and tries to find suspicious patterns known as signatures or rules. It also tries to detect incoming shell codes in the same manner that an ordinary intrusion detection systems does. Answer option A is incorrect. A host-based intrusion detection system (HIDS) produces a false alarm because of the abnormal behavior of users and the network. A host-based intrusion detection system (HIDS) is an intrusion detection system that monitors and analyses the internals of a computing system rather than the network packets on its external interfaces. A host-based Intrusion Detection System (HIDS) monitors all or parts of the dynamic behavior and the state of a computer system. HIDS looks at the state of a system, its stored information, whether in RAM, in the file system, log files or elsewhere; and checks that the contents of these appear as expected. Answer option B is incorrect. An intrusion prevention system (IPS) is a network security device that monitors network and/or system activities for malicious or unwanted behavior and can react, in real-time, to block or prevent those activities. When an attack is detected, it can drop the offending packets while still allowing all other traffic to pass. Answer option C is incorrect. A demilitarized zone (DMZ) is a physical or logical subnetwork that contains and exposes external services of an organization to a larger network, usually the Internet. The purpose of a DMZ is to add an additional layer of security to an organization's Local Area Network (LAN); an external attacker only has access to equipment in the DMZ, rather than the whole of the network. Hosts in the DMZ have limited connectivity to specific hosts in the internal network, though communication with other hosts in the DMZ and to the external network is allowed. This allows hosts in the DMZ to provide services to both the internal and external networks, while an intervening firewall controls the traffic between the DMZ servers and the internal network clients. In a DMZ configuration, most computers on the LAN run behind a firewall connected to a public network such as the Internet.
NEW QUESTION # 274
John is the Vice-President of a BPO. He wants to implement a policy allowing employees to use and manage devices purchased by the organization but restrict the use of the device for business use only. Which among the following policies does John want to implement?
Answer: D
Explanation:
John wants to implement a policy that allows employees to use and manage devices purchased by the organization but restricts the use of the device for business use only. This is known as a COBO (Company Owned, Business Only) policy. Under a COBO policy, the company provides the devices to the employees and maintains control over them, ensuring that they are used solely for business purposes123.
NEW QUESTION # 275
Which of the following protocols permits users to enter a user-friendly computer name into the Windows browser and to map network drives and view shared folders?
Answer: A
Explanation:
NetBIOS Extended User Interface (NetBEUI) is a Microsoft proprietary protocol. NetBEUI is usually used in single LANs comprising one to two hundred clients. It is a non-routable protocol. NetBEUI was developed by IBM for its LAN Manager product and has been adopted by Microsoft for its Windows NT, LAN Manager, and Windows for Workgroups products. It permits users to enter a user-friendly computer name into the Windows browser and to map network drives and view shared folders.
Answer option C is incorrect. Voice over Internet Protocol (VoIP) is a general term for a family of transmission technologies for delivery of voice communications over IP networks such as the Internet or other packet- switched networks. Other terms frequently encountered and synonymous with VoIP are IP telephony, Internet telephony, Voice over Broadband (VoBB), broadband telephony, and broadband phone.
VoIP systems employ session control protocols to control the set-up and tear-down of calls as well as audio codecs that encode speech, allowing transmission over an IP network as digital audio via an audio stream.
Answer option A is incorrect. RADIUS is a client/server protocol that runs in the application layer, using UDP as transport. The Remote Access Server, the Virtual Private Network server, the Network switch with port-based authentication, and the Network Access Server are all gateways that control access to the network, and all have a RADIUS client component that communicates with the RADIUS server. The RADIUS server is usually a background process running on a UNIX or Windows NT machine.
RADIUS serves three functions:
To authenticate users or devices before granting them access to a network; To authorize those users or devices for certain network services; To account for usage of those services.
Answer option D is incorrect. Address Resolution Protocol (ARP) is a computer networking protocol used to determine a network host's Link Layer or hardware address when only its Internet Layer (IP) or Network Layer address is known. This function is critical in local area networking as well as for routing internetworking traffic across gateways (routers) based on IP addresses when the next-hop router must be determined.
NEW QUESTION # 276
Which of the following IEEE standards provides specifications for wireless ATM systems?
Answer: C
NEW QUESTION # 277
Bankofamerica Enterprise is working on an internet and usage policy in a way to control the internet demand. What group of policy does this belong to?
Answer: A
Explanation:
The development of an internet and usage policy by Bankofamerica Enterprise to control internet demand falls under the category of Issue Specific Security Policy (ISSP). ISSPs are tailored to address specific areas of technology, requiring frequent updates due to changes in the technology or the environment. They provide guidelines on the acceptable use of the company's internet services, outline the consequences of policy violations, and ensure that the internet resources are not misused.
References: The classification of this policy as an ISSP is consistent with the practices outlined in the ECCouncil's Network Defender (CND) course, which emphasizes the importance of having dedicated policies for specific issues that arise within network security1.
NEW QUESTION # 278
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