Isaca CISA Exam With Confidence Using Practice Dumps

 A transaction processing system (TPS) is a system that captures, processes, and stores data related to business transactions1. A general ledger is a system that records the financial transactions of an organization in different accounts2. An interface is a connection point between two systems that allows data exchange3. A system fix is a change or update to a system that resolves a problem or improves its functionality4.

The IS auditor should recommend to perform periodic reconciliations to validate the interface between the TPS and the general ledger is working in the future. A reconciliation is a process of comparing and verifying the data in two systems to ensure accuracy and consistency1. By performing periodic reconciliations, the IS auditor can detect and correct any errors or discrepancies in the data, such as duplicate transactions, missing transactions, or incorrect amounts. This way, the IS auditor can ensure the reliability and integrity of the financial data in both systems.

The other options are not as effective as periodic reconciliations to validate the interface. System owner sign-off for the system fix is a form of approval that indicates the system owner agrees with the change and its expected outcome4. However, this does not guarantee that the system fix will work as intended or prevent future errors. Conducting functional testing is a process of verifying that the system performs its intended functions correctly and meets its requirements4. However, this is usually done before or after the system fix is implemented, not on an ongoing basis. Improving user acceptance testing (UAT) is a process of evaluating whether the system meets the needs and expectations of the end users4. However, this is also done before or after the system fix is implemented, not on an ongoing basis. Therefore, option A is the correct answer.

References:

Transaction Interface: Organization, Process, and System

Validation of Interfaces - Ensuring Data Integrity and Quality across Systems

Oracle Payments Implementation Guide

Receiving Transactions Inserted Into Interface Table as BATCH And PENDING Are Not Processed By Receiving Transaction Processor

What Is a Transaction Processing System (TPS)? (Plus Types)

Recovery facilities providing a redundant combination of Internet connections to the local communications loop is an example of last-mile circuit protection. Last-mile circuit protection is a type of telecommunications continuity that ensures the availability and redundancy of the final segment of the network that connects the end-user to the service provider. The local communications loop, also known as the local loop or subscriber line, is the physical link between the customer premises and the nearest central office or point of presence of the service provider. Byhavingmultiple Internet connections from different providers or technologies, such as cable, DSL, fiber, wireless, or satellite, the recoveryfacilities can avoid losing connectivity in case one of the connections fails or is disrupted by a disaster5.

References:

9: Last Mile Redundancy - How to Ensure Business Continuity - Multapplied Networks

The best audit procedure to determine whether a firewall is configured in compliance with the organization’s security policy is reviewing the parameter settings. Parameter settings are values or options that define how a firewall operates and functions, such as rules, filters, ports, protocols, etc. By reviewing the parameter settings of a firewall, an IS auditor can verify whether they match with the organization’s security policy, which is a document that outlines the security objectives, requirements, and guidelines for an organization’s information systems and resources. Reviewing the system log is a possible audit procedure to determine whether a firewall is configured in compliance with the organization’s security policy, but it is not the best one, as a system log records events or activities thatoccur on a firewall, such as connections, requests, responses, errors, alerts, etc., and may not indicate whether they comply with the organization’s security policy. Interviewing the firewall administrator is a possible audit procedure to determine whether a firewall is configured in compliance with the organization’s security policy, but it is not the best one, as a firewall administrator may not provide accurate or reliable information about the firewall configuration, and may have conflicts of interest or ulterior motives. Reviewing the actual procedures is a possibleaudit procedure to determine whether a firewall is configured in compliance with the organization’s security policy, but it is not the best one, as actual procedures describe how a firewall is configured and maintained, such as installation, testing, updating, etc., and may not reflect whether they comply with the organization’s security policy.