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Explanation

Explanation

The following are the benefits of deploying Cisco Advanced Phishing Protection on the Cisco Email Security

Gateway:

Prevents the following:

+ Attacks that use compromised accounts and social engineering.

+ Phishing, ransomware, zero-day attacks and spoofing.

+ BEC with no malicious payload or URL.

The Python script is using the dnac_login function to authenticate to a Cisco DNA Center server and obtain a token that can be used for subsequent API calls. The function takes three parameters: host, username, and password. It constructs a URL for the authentication endpoint, which is https://{}/api/system/v1/auth/token. It then uses the requests library to send a POST HTTP request to the URL, passing the username and password as HTTP Basic Authentication credentials, and setting the headers to indicate the expected content type and response format. The function also disables the SSL verification by setting the verify parameter to False. This is not recommended for production environments, as it exposes the script to potential security risks. The function then returns the token value from the JSON response, which is accessed by using the response.json()[ "Token"] syntax. The token can then be used as a bearer token for subsequent API calls to the Cisco DNA Center server. References:

Implementing and Operating Cisco Security Core Technologies (SCOR) v1.0, Module 9: Content Security, Lesson 9.3: Cisco DNA Center APIs

Cisco DNA Center Platform API Reference, Authentication API

Refer to the exhibit. What will happen when the Python script is executed?

Cisco FTDv in AWS can be deployed in two different deployment models: single-instance and cluster. In both models, the FTDv can be configured in routed mode and managed by either an FMCv installed in AWS or a physical FMC appliance on premises. The FTDv can also use Geneve encapsulation for traffic interfaces to support AWS Gateway Load Balancer (GWLB) integration. The following table summarizes the supported deployment model configurations for FTDv in AWS:

Table

Deployment Model

Management Mode

Traffic Mode

Geneve Encapsulation

Single-instance

FMCv in AWS

Routed

Optional

Single-instance

FMC on premises

Routed

Optional

Cluster

FMCv in AWS

Routed

Required

Cluster

FMC on premises

Routed

Required

References :=

Deploy the Threat Defense Virtual on AWS - Cisco

Deploy a Threat Defense Virtual Cluster on AWS - Cisco

Configure Geneve Interfaces in Secure FTDv - Cisco

Deployment of Cisco Secure FTDv and FMCv instances in AWS - Terraform

Solved: FTD virtual appliance in AWS - Cisco Community

To connect Cisco Secure Workload to external orchestrators at a client site where incoming connections are not allowed, a reverse tunnel must be used. A reverse tunnel initiates the connection from the inside of the client's network out to the external orchestrator, thereby bypassing restrictions on incoming connections and enabling secure communication.

Cisco Umbrella is a cloud-delivered security service that protects users from malicious domains and IPs, regardless of their location or network. When users are off the corporate network, they can use the Cisco Umbrella roaming client, which is embedded in the Cisco AnyConnect client, to enforce Umbrella DNS servers for all DNS queries. This way, Umbrella can block requests to malicious or unwanted domains before a connection is ever made, and provide visibility and protection for users anywhere they go. The Umbrella roaming client does not require any additional agents or end user action, and it can work with or without a VPN connection. References := Cisco Umbrella Roaming, Umbrella Roaming Client – How it Works on Your Company Network

Explanation

Cisco Firepower deployments can take advantage of platform settings policies. A platform settings policy is a shared set of features or parameters that define the aspects of a managed device that are likely to be similar to other managed devices in your deployment, such as time settings and external authentication. Examples of these platform settings policies are time and date settings, external authentication, and other common

administrative features.

A shared policy makes it possible to configure multiple managed devices at once, which provides consistency in your deployment and streamlines your management efforts. Any changes to a platform settings policy affects all the managed devices where you applied the policy. Even if you want different settings per device, you must create a shared policy and apply it to the desired device.

For example, your organization’s security policies may require that your appliances have a “No Unauthorized Use” message when a user logs in. With platform settings, you can set the login banner once in a platform settings policy.

https://www.cisco.com/c/en/us/td/docs/security/wsa/wsa11-0/user_guide/b_WSA_UserGuide/b_WSA_UserGuide_chapter_01101.html Policy Order The order in which policies are listed in a policy table determines the priority with which they are applied to Web requests. Web requests are checked against policies beginning at the top of the table and ending at the first policy matched. Any policies below that point in the table are not processed. If no user-defined policy is matched against a Web request, then the global policy for that policy type is applied. Global policies are always positioned last in Policy tables and cannot be re-ordered.

The Secure Event Connector is a component of the Security Analytics and Logging (SaaS) solution that enables the FMC to send logs to the cloud-based service. The Secure Event Connector uses syslog to forward events from the FMC and the managed devices to the cloud. This method reduces the load on the firewall resources, as the events are sent in batches and compressed before transmission. The Secure Event Connector also provides encryption, authentication, and reliability for the log data. The other methods are not supported by the Security Analytics and Logging (SaaS) solution12 References := 1: Cisco Security Analytics and Logging (On Premises)

Explanation

The term ‘rootkit’ originally comes from the Unix world, where the word ‘root’ is used to describe a user with the

highest possible level of access privileges, similar to an ‘Administrator’ in Windows. The word ‘kit’ refers to the

software that grants root-level access to the machine. Put the two together and you get ‘rootkit’, a program that

gives someone – with legitimate or malicious intentions – privileged access to a computer.

There are four main types of rootkits: Kernel rootkits, User mode rootkits, Bootloader rootkits, Memory rootkits

Explanation

A destination list is a list of internet destinations that can be blocked or allowed based on the administrative

preferences for the policies applied to the identities within your organization. A destination is an IP address

(IPv4), URL, or fully qualified domain name. You can add a destination list to Umbrella at any time; however, a

destination list does not come into use until it is added to a policy.

 Dynamic ARP Inspection (DAI) is a security feature that protects ARP (Address Resolution Protocol) from an attack like ARP poisoning. ARP poisoning is a technique where an attacker sends forged ARP responses to trick hosts into associating IP addresses with the attacker’s MAC address. This allows the attacker to intercept, modify, or drop traffic between the victims, creating a “man-in-the-middle” scenario. DAI can prevent this attack by validating ARP packets on untrusted interfaces, using information from the DHCP snooping database and/or an ARP access-list. If the ARP packet contains invalid MAC address to IP address bindings, it will be dropped and logged. DAI can also rate-limit ARP packets to mitigate ARP flooding attacks. DAI is configured on a per-VLAN basis and requires DHCP snooping to be enabled on the same VLANs. References :=

Some possible references are:

Implementing and Operating Cisco Security Core Technologies (SCOR) v1.0, Module 2: Network Security, Lesson 2.4: Implement Layer 2 Security

Understanding and Configuring Dynamic ARP Inspection

DAI (Dynamic ARP Inspection)

Explanation

A data breach is the intentional or unintentional release of secure or private/confidential information to an

untrusted environment.

When your credentials have been compromised, it means someone other than you may be in possession of your account information, such as your username and/or password.