NetSec-Analyst Object Configuration Creation And Application Practice Test 8 — 15 Questions

Question 1

A security analyst is creating a Dynamic Address Group (DAG) that should automatically include all servers tagged with the tag 'WebServer'. The analyst has already created the tag and applied it to the relevant server objects. What additional configuration is required for the DAG to populate correctly?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

A filter expression that matches the tag 'WebServer'.. For a Dynamic Address Group to populate, it must have a filter expression that matches the tags applied to objects. In this scenario, the filter should reference the 'WebServer' tag. Once configured, any object with that tag is automatically included in the group. Static lists, policy rules, or registered IPs are not required and would not enable the dynamic behavior.

Answer

A static list of IP addresses for each server.

Answer

A Security Policy rule that references the DAG before it can populate.

Answer

A registered IP address for each server in the DAG configuration.

Question 2

An administrator maintains a large set of internal web servers whose IPs change frequently. Rather than editing address objects each time, the administrator wants policy rules to match servers dynamically based on tags applied to them. Which SCM object should the administrator configure to achieve automatic membership updates?

Accepted Answer

Dynamic Address Group using a tag-based filter expression.. Dynamic Address Groups are purpose-built to derive membership from tag-based filter expressions, so any address object carrying matching tags is included automatically. Static Address Groups need manual updates, EDLs depend on external feeds, and Service Groups only aggregate ports. Only the Dynamic Address Group gives policy rules a self-updating, tag-driven membership that follows changing server IPs.

Answer

Static Address Group populated with each server's current IP.

Answer

Service Group aggregating the ports used by the internal web servers.

Answer

External Dynamic List pulling server IPs from an internal HTTPS feed.

Question 3

A security analyst is troubleshooting a Dynamic Address Group (DAG) that is not populating with expected IP addresses. The DAG is configured with the filter 'tag.production' and is intended to include all servers tagged with 'production'. The analyst verifies that several servers have the 'production' tag applied. What is the most likely cause for the DAG not populating?

Accepted Answer

The servers' IP addresses have not been registered with the tags through a dynamic address group registration process.. Dynamic Address Groups populate based on IP-to-tag mappings registered through external processes. Applying a tag to a server in a management interface does not automatically register its IP address with that tag. The most likely cause is that the IP addresses have not been registered with the 'production' tag via a supported mechanism, such as a User-ID agent or API. This is a common oversight in DAG configuration.

Answer

The DAG must be manually refreshed by restarting the management server.

Answer

The DAG filter syntax must use 'and' instead of a period to combine tag and value.

Answer

The tag 'production' must be defined as a static address object before it can be used in a DAG filter.

Question 4

A network security analyst is configuring a new Palo Alto Networks firewall. They need to create an Address Object for a server that has a hostname of 'web01.example.com' but also has a static IP address of 192.168.1.10. The analyst wants the firewall to resolve the hostname dynamically in case the IP changes. Which type of Address Object should they create?

Accepted Answer

FQDN Address Object. An FQDN Address Object is specifically designed to resolve a hostname to an IP address and keep it updated. This allows the firewall to adapt to IP changes without manual intervention. The other object types are static in nature and do not support dynamic DNS resolution, making them unsuitable for a server whose IP might change.

Answer

Dynamic Address Group

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IP Range Address Object

Answer

IP Netmask Address Object

Question 5

An administrator needs to create a new Security Policy rule that allows HTTP and HTTPS traffic from the internal network to a specific external web server. The internal network is already defined as an Address object, and the external server is defined as an FQDN object. Which additional object is required to complete the rule?

Accepted Answer

A Service object for TCP ports 80 and 443. To complete the Security Policy rule, the administrator must specify the service that matches HTTP and HTTPS. A Service object defining TCP ports 80 and 443 is required. The source and destination are already covered by the existing Address and FQDN objects. Other object types do not provide the necessary port-based service definition.

Answer

A Dynamic Address Group for the external server

Answer

An Application object for web-browsing

Answer

An Address Group containing the internal network and external server

Question 6

A security administrator is creating a new Address Group to simplify policy management. The administrator wants to include a mix of static IP addresses and a Dynamic Address Group (DAG) that contains servers tagged as 'web'. Which two statements are true regarding the configuration of this Address Group? (Choose two.)

Accepted Answer

The Address Group can contain both static address objects and dynamic address groups as members.. Address Groups can contain both static address objects and dynamic address groups, allowing mixed membership. Additionally, when a DAG's membership changes, the parent Address Group automatically reflects those changes because the DAG is evaluated dynamically. This enables administrators to combine static and dynamic elements in a single group for use in policy rules, simplifying management and ensuring up-to-date IP lists.

Answer

The Address Group must be of type 'Dynamic' to include a DAG as a member.

Answer

Static address objects within the Address Group are automatically converted to dynamic tags.

Answer

The Address Group can only contain objects of the same type (either all static or all dynamic).

Question 7

While building a Security Policy rule, an analyst realizes the destination address object does not exist yet. The analyst wants to create it without leaving the rule configuration workflow in SCM. What is the most efficient approach?

Accepted Answer

Use the inline create option in the destination address field to define the new Address object on the spot.. SCM's policy editor supports inline object creation, letting the analyst define the missing Address object from the destination field itself. The object is persisted and selected immediately, avoiding placeholders, bulk imports, or cloning detours. This streamlines rule authoring and keeps the configuration consistent, which is why it is the most efficient option for the described situation.

Answer

Import a CSV of address objects into SCM and then reload the policy editor to select the new entry.

Answer

Save the policy rule with a placeholder address, then create the object from the Objects page and edit the rule afterward.

Answer

Clone an existing similar Address object from the object list and then return to the rule to select it.

Question 8

A security analyst is creating a new custom Service object to represent a proprietary application that uses both TCP and UDP on the same port number. Which two parameters must be defined when creating this Service object? (Choose two.)

Accepted Answer

Destination port number. When creating a custom Service object, the essential parameters are the protocol (TCP or UDP) and the destination port number. These define what traffic the service matches. Source port, application signature, and timeout are either not required or pertain to other object types. Since the application uses both TCP and UDP on the same port, the analyst would need to define the protocol and port for each.

Answer

Source port number

Answer

Application signature

Answer

Timeout value

Question 9

A security analyst is creating a new Security Policy rule and needs to reference a Service Object that does not yet exist. The analyst wants to create the Service Object inline without leaving the policy rule configuration. Which statement accurately describes the inline object creation capability for Service Objects in the NetSec-Analyst platform?

Accepted Answer

Inline creation of Service Objects is supported through the Service field's Object Selector, allowing definition of protocol and port.. The NetSec-Analyst platform supports inline creation of Service Objects directly from the Service field's Object Selector within a policy rule. This allows the analyst to define the necessary protocol and port without navigating away. The object is then created and automatically selected for the rule. This capability is not restricted to Address Objects and does not require special approval, making it a seamless part of policy configuration.

Answer

Inline creation is only available for Address Objects, not for Service Objects.

Answer

Inline creation requires pre-approval from an administrator and is disabled by default.

Answer

Inline creation of Service Objects is possible, but only if the object name is unique and does not conflict with existing objects.

Question 10

A security administrator is creating a new Application Filter object to identify a custom application that uses a specific URL pattern. The application is accessed via HTTP and HTTPS, and the URL contains the string '/secure/login'. The administrator wants to ensure that the filter matches only traffic to that specific path. Which of the following is the most appropriate configuration for the Application Filter?

Accepted Answer

Create an Application Filter with a custom signature that includes the HTTP request URI containing '/secure/login'.. To match a custom application based on a specific URL path, a custom application signature that inspects the HTTP request URI is the most precise method. It allows the firewall to identify traffic to '/secure/login' specifically, and can be applied to both HTTP and HTTPS (with decryption). Other methods like URL categories or port matches are too broad or not designed for custom paths.

Answer

Create an Application Filter with a URL category match for '/secure/login' and protocol HTTP/HTTPS.

Answer

Create an Application Filter with a port-based match for TCP 80 and 443, and a source IP match for the server.

Answer

Create an Application Filter with a regular expression that matches the entire URL, including the domain.

Question 11

An administrator is creating a new External Dynamic List (EDL) to block traffic from known malicious IP addresses. The list is hosted on an external web server and updates hourly. The administrator wants to ensure that the firewall can retrieve and use the list. Which of the following must be configured on the firewall to use the EDL in a security policy?

Accepted Answer

Create an External Dynamic List object with the URL of the list and set the update interval to hourly.. To use an External Dynamic List, you must create an EDL object that specifies the URL and update interval. The firewall then fetches the list and uses it in policies. Other object types like static Address Groups, Application Filters, or Service Objects are not designed to handle dynamic IP lists. The EDL object is the correct and only way to integrate the list.

Answer

Create a Service Object with the EDL URL as the destination.

Answer

Create a static Address Group and manually add the IP addresses from the list.

Answer

Create a custom Application Filter that references the EDL URL.

Question 12

An administrator is creating a new Service Group that will contain several Service Objects for different applications. They want to ensure that the Service Group can be used in a Security Policy to allow traffic for all the services. However, they also want to minimize the number of objects they need to manage. Which of the following is a valid consideration when creating a Service Group?

Accepted Answer

A Service Group can contain other Service Groups, allowing hierarchical grouping.. Service Groups can contain other Service Groups, allowing for nested groupings. This hierarchical structure helps organize services and reduce the number of objects referenced in policies. The other options are incorrect: Service Groups can contain mixed protocols, do not require port ranges, and can be modified after being referenced.

Answer

A Service Group can only contain Service Objects of the same protocol (TCP or UDP).

Answer

A Service Group can only be used in a Security Policy if it contains at least one Service Object with a port range.

Answer

A Service Group cannot be modified after it is referenced in a Security Policy.

Question 13

A network security analyst is creating a new Security Policy rule in Strata Cloud Manager to allow access to a SaaS application. The SaaS provider publishes a list of IP addresses that changes frequently, and the analyst wants the rule to automatically adapt without manual edits. They decide to use a Dynamic Address Group (DAG) based on tags. What must be configured on the firewall or in Strata Cloud Manager for the DAG to populate its members?

Accepted Answer

A registered IP-tag source, such as a VM Information Source or a User-ID agent, that applies the required tags to the IP addresses.. Dynamic Address Groups automatically include IP addresses based on tags applied by a registered IP-tag source. The firewall must receive tag information from a VM Information Source, User-ID agent, or similar service. This allows the Security Policy rule to dynamically adapt to changing IP addresses without manual intervention, which is essential for SaaS applications with frequently updated IP ranges.

Answer

A DNS proxy that resolves the SaaS application's domain name and dynamically updates the DAG membership.

Answer

A static list of the SaaS provider's IP addresses entered directly into the DAG definition.

Answer

An External Dynamic List (EDL) that contains the SaaS provider's IP addresses, referenced by the DAG.

Question 14

A network security analyst is defining a custom Application Object for a proprietary database that uses TCP ports 1521 and 1522, and the application performs a three-way handshake but never sends a FIN or RST. The analyst wants the firewall to correctly identify and allow this application. Which step is critical to ensure the firewall recognizes the application session?

Accepted Answer

Configure the Application Object with the correct TCP ports and enable 'Session End Detection' with a timeout, and set the application to use 'tcp' with 'timeout' as the session end condition.. The application's lack of FIN or RST means the firewall must use an inactivity timeout to detect session end. Configuring the Application Object with the correct TCP ports and enabling session end detection with a timeout allows the firewall to correctly identify and manage the application session. This approach avoids indefinite sessions and ensures proper resource management.

Answer

Configure the Application Object with a session timeout and enable 'session end detection' using the appropriate TCP half-closed or time-wait settings.

Answer

Define the Application Object with the correct TCP ports and set the 'Session End Detection' to 'tcp-fin' and 'tcp-rst' only.

Answer

Set the Application Object's timeout to 0 to rely on session end detection by the firewall's default behavior.

Question 15

A security analyst is creating an External Dynamic List (EDL) to block traffic from known malicious IPs. The EDL is hosted on an internal web server that requires authentication. The analyst wants the firewall to retrieve the list every hour. Which configuration must be applied to the EDL object to successfully fetch the list?

Accepted Answer

Configure the EDL with the URL and specify a username and password in the EDL object settings.. When an External Dynamic List is hosted on a server that requires authentication, the firewall must be configured with the appropriate credentials. The EDL object supports specifying a username and password, which are sent in the HTTP request. This allows the firewall to authenticate and retrieve the list successfully. Without these credentials, the retrieval would fail regardless of other settings.

Answer

Configure the EDL with the URL and set the 'Source Address' to the firewall's management interface IP.

Answer

Configure the EDL with the URL and enable 'Use SSL' with a certificate profile for server validation.

Answer

Configure the EDL with the URL and set the 'Certificate Profile' to use a client certificate for authentication.