Interview Questions and Answers

There are two types of conditions in a workflow: condition builder and script condition.

• Condition builder allows for creating conditions using a visual interface

• Script condition allows for writing conditions using scripting languages like JavaScript

No, current.update() cannot be used in Business Rules (BR).

• current.update() is not supported in Business Rules as it can lead to infinite loops.

• Use current.setValue() or current.setAbortAction(true) instead in Business Rules.

• Example: current.setValue('state', 2);

FTP uses port 21 for control and port 20 for data transfer.

• FTP uses two ports: 21 for control and 20 for data transfer.

• Port 21 is used for sending commands and receiving responses.

• Port 20 is used for sending data.

• FTP can also use passive mode, which uses a range of ports for data transfer.

• FTP over SSL/TLS uses port 990 for control and port 989 for data transfer.

Types of change include standard, normal, emergency, and major. Each type has different levels of impact and urgency.

• Standard change: Pre-approved, low-risk changes that follow a documented process.

• Normal change: Changes that are not standard but do not require immediate implementation.

• Emergency change: Changes that must be implemented immediately to resolve a critical issue.

• Major change: High-impact changes that require significant planning and approval.

Cascading variables are variables that are dependent on other variables and change dynamically based on the values of those variables.

• Cascading variables are commonly used in forms to show or hide certain fields based on the selection of other fields.

• They help in creating dynamic and interactive forms that adapt to user input.

• For example, in a form for selecting a country, the list of states or provinces available for selection would be a cascading variable that changes based...read more

Problem management lifecycle involves identification, logging, categorization, prioritization, investigation, diagnosis, resolution, and closure of problems.

• Identification of a problem

• Logging the problem in a system

• Categorizing the problem based on impact and urgency

• Prioritizing the problem for resolution

• Investigating the root cause of the problem

• Diagnosing the problem and finding a solution

• Resolving the problem and implementing the solution

• Closing the problem and documenting...read more

Balanced search trees are data structures that maintain a balanced height to ensure efficient search operations.

• Balanced search trees like AVL trees and Red-Black trees ensure O(log n) time complexity for search, insert, and delete operations.

• Traversal problems in balanced search trees include in-order, pre-order, and post-order traversal.

• In-order traversal of a balanced search tree will result in a sorted list of elements.

• Pre-order traversal visits the root node first, follo...read more

The 7 layers of networking refer to the OSI model, which is a conceptual framework used to understand how networks operate.

• Physical Layer: Deals with physical connections and hardware (e.g. cables, switches)

• Data Link Layer: Manages data transfer between devices on the same network (e.g. MAC addresses)

• Network Layer: Handles routing and forwarding of data packets (e.g. IP addresses)

• Transport Layer: Ensures reliable data transfer between end systems (e.g. TCP)

• Session Layer: Mana...read more