Pass the F5 BIG-IP DNS 302 Questions and answers with CertsForce

Explanation

Defining the NTP Server for each Synchronization group member ensures that all members are referencing the same time. This is crucial for maintaining consistency and accuracy in the synchronization of data and operations across all members of the group.

Domain

Synchronization

Explanation

The correct command to generate a new SSL Private Key using OpenSSL is "openssl genrsa -out ". This command generates a new RSA private key with the specified key size and saves it to the specified file path and name. It is the standard and recommended way to create a new SSL Private Key securely.

Domain

Dgigital certificate - Openssl

Explanation

Access to MIB Objects is granted according to the Access type that is assigned to the Object itself. The Access type determines whether the Object can be read, written, or both, and this permission is granted based on the configuration of the Object in the MIB.

Access to MIB Objects is granted according to the Access Type that is assigned to the user attempting to access the Object. The user's permissions, roles, and access levels determine what actions they can perform on the Object, such as read-only or read-write access.

Domain

SNMP

Explanation

Port 22 is used for SSH communication between the GTM and BIG-IP systems. It allows secure access for administrative tasks and configuration management.

Port 4353 is used for communication between the GTM and BIG-IP systems for synchronization and data exchange. It is specifically designated for this purpose to ensure proper functioning of the systems.

Domain

Natting

Explanation

The Request Source Builder component in topology records configuration is the criteria that should be chosen to identify the Source Location from which the query had been sourced. This component helps in determining the origin of the query and plays a crucial role in the overall topology record configuration.

Explanation

In the Topology load balancing configuration, you can indeed choose another load balancing type. F5 GTM allows for flexibility in selecting different load balancing algorithms based on the specific requirements of the application or network environment. This enables customization and optimization of the load balancing process to ensure efficient and reliable distribution of traffic.

Explanation

This choice correctly identifies the main parts of the DNS recursion process. Local PC Cache, Local DNS, Root Domain, Top Level Domain, and Second Level Domain are all essential components involved in the recursive resolution of domain names in the DNS system. These elements work together to efficiently resolve domain names to their corresponding IP addresses.

Explanation

An iterative query in DNS allows the DNS server to direct the client system to other DNS servers that may have more information to help resolve the query. This process involves the DNS server providing a referral to other servers that can assist in resolving the query, making it a collaborative effort to find the necessary information.

In an iterative query scenario, the DNS server will redirect the requester to other DNS servers that may have additional information to help in resolving the query. This redirection process allows for a more efficient and distributed approach to resolving DNS queries by leveraging the resources and knowledge of multiple servers in the DNS infrastructure.

Domain

DNS Data flow

Explanation

The F5 BIGIP DNS system connects to the remote Cisco System behind the firewall using this address

The External/Public IP Address needed for the Server object option in the F5 BIGIP DNS system when the F5 BIGIP Systems are behind a firewall is typically the Firewall IP Address. This address allows the F5 BIGIP DNS system to communicate with the remote BIGIP System through the firewall.

The External/Public IP Address serves as the connection point for the F5 BIGIP DNS system to reach the remote BIGIP System behind the firewall. It is essential for establishing communication between the two systems.

The External/Public IP Address, in combination with the TCP port number 4353, represents the iQuery connection from the Bigip DNS to the remote BIGIP system. This connection is crucial for exchanging information and managing the DNS configuration.

Domain

Natting

Explanation

The gtmd process updates the “commit-id” value and Writes the new configuration to /config/bigip_gtm.conf file.

The Local big3d process will start to communicate the new “commit-id” value to all remote gtmd processes

Correct selection

The remote gtmd process will use “iqsyncer “ utility to pull the new configuration related to the new “commit-id”

The “mmsh” will communicate the Configuration changes to the “ncpd” process

The mcpd process will forward the Configuration changes to the gtmd process

The ltmd process updates the “commit-id” value and Writes the new configuration to /config/bigip_ltm.conf file.

The Local big3d process will start to communicate the new “commit-id” value to all remote gtmd processes

In the communication flow when changing the configuration of the Synchronization Group, the "tmsh" process is responsible for communicating the configuration changes to the "mcpd" process. The "mcpd" process then forwards these changes to the "gtmd" process to ensure synchronization across devices.

During the configuration change process, the "gtmd" process is responsible for updating the "commit-id" value and writing the new configuration to the /config/bigip_gtm.conf file. Subsequently, the local "big3d" process initiates communication of the new "commit-id" value to all remote gtmd processes to maintain consistency.

Following the update of the "commit-id" value and writing the new configuration to the /config/bigip_gtm.conf file, the remote gtmd process utilizes the "iqsyncer" utility to pull the new configuration related to the updated "commit-id" value. This ensures that all devices in the Synchronization Group have the latest configuration.

Domain

iQuery Synchronization issue