Legit 350-701 Exam Download

Dynamic ARP Inspection (DAI) is a security feature that validates ARP packets in a network. DAI allows a network administrator to intercept, log, and discard ARP packets with invalid MAC address to IP address bindings. This capability protects the network from certain “man-in-the-middle” attacks. DAI determines the validity of an ARP packet based on valid IP to MAC address bindings from the DHCP snooping binding database. DAI also supports static ARP ACLs for hosts with static IP addresses. DAI checks all ARP packets on untrusted interfaces, and only forwards the packets that have valid bindings. DAI can also rate-limit the ARP packets on untrusted interfaces to prevent DoS attacks. The other options are incorrect because:

• B. In a typical network, DAI should be configured to make all ports as untrusted except for the ports connecting to trusted hosts or switches, which are trusted.
• C. DAI does not associate a trust state with each switch, but with each interface on the switch.
• D. DAI intercepts all ARP requests and responses on untrusted ports only, not on trusted ports. References :=

Endpoint security is the process of protecting devices like workstations, servers, and other devices from malicious threats and cyberattacks. Endpoint security enables businesses to secure endpoints that employees use for work purposes or servers that are either on a network or in the cloud. Endpoint security is important because every device that connects to the corporate network is a potential vulnerability, providing a possible entry point for cyber criminals. Therefore, every device an employee uses to connect to any business system or resource carries the risk of becoming the chosen route for hacking into an organization. These devices can be exploited by malware that could leak or steal sensitive data from the business12.

One of the benefits of endpoint security is that it allows the organization to detect and mitigate threats that the perimeter security devices do not detect. Perimeter security devices, such as firewalls and intrusion prevention systems, are designed to protect the network from external attacks. However, they may not be able to prevent or detect attacks that originate from within the network, such as insider threats, compromised devices, or lateral movement. Endpoint security solutions can provide visibility and control over the devices that connect to the network, and can monitor, analyze, and respond to suspicious or malicious activities on the endpoints. Endpoint security solutions can also leverage threat intelligence and advanced analytics to identify and block known and unknown threats, such as ransomware, zero-day exploits, and targeted attacks13. References := 1: What is Endpoint Security? How Does It Work? | Fortinet 2: Microsoft Defender for Endpoint | Microsoft Security 3: Endpoint Security - Check Point Software

MAB is a fallback mechanism for IEEE 802.1X that allows network access based on the MAC address of the endpoint. However, MAB does not prevent MAC address spoofing, which is a technique used by attackers to impersonate authorized devices and bypass authentication. To mitigate this risk, two catalyst switch security features can be used in conjunction with MAB: 802.1AE MacSec and port security.

802.1AE MacSec is a standard that provides encryption and integrity protection for data frames between two MACsec-capable devices. MacSec also uses a secure key exchange protocol called MKA (MACsec Key Agreement) to establish and maintain cryptographic keys between the peers. By enabling MacSec on the switch ports, the switch can verify the identity and authenticity of the endpoints and prevent unauthorized access or tampering with the data frames.

Port security is a feature that allows the switch to limit the number and type of MAC addresses that can access a port. Port security can be configured to allow only a specific MAC address or a maximum number of MAC addresses per port. Port security can also be configured to take an action when a violation occurs, such as shutting down the port, sending a trap, or dropping packets. By enabling port security on the switch ports, the switch can prevent multiple devices from accessing the same port or deny access to devices with spoofed MAC addresses.

References:

• Implementing and Operating Cisco Security Core Technologies (SCOR) v1.0, Module 2: Network Security, Lesson 2.2: Implementing Network Access Control
• MAC Authentication Bypass Deployment Guide, MAB Benefits and Limitations, MAB Feature Interaction

 Mobile Device Management (MDM) is a solution that allows an organization to manage, monitor, and secure mobile devices such as smartphones, tablets, and laptops. MDM provides two main advantages to an organization with regards to device management:

• Asset inventory management: MDM helps an organization keep track of all the mobile devices that are connected to its network, including their location, status, configuration, and usage. MDM also enables an organization to remotely wipe or lock devices that are lost, stolen, or compromised, preventing data loss and unauthorized access. Asset inventory management helps an organization optimize its resources, reduce costs, and comply with regulations12.
• Allowed application management: MDM allows an organization to control what applications can be installed and run on the mobile devices, as well as how they can access and share data. MDM can also push updates and patches to the devices, ensuring that they are always running the latest and most secure versions of the applications. Allowed application management helps an organization enhance security, productivity, and performance of the mobile devices34.

References: 1: 7 Advantages and Disadvantages of Mobile Device Management [2024] 2: 5 Benefits of Mobile Device Management - ESET 3: Top 10 Benefits of Mobile Device Management (MDM) - TechFunnel 4: Benefits of Mobile Device Management (MDM) for Businesses