10+ Integration Engineer Interview Questions and Answers

Different file formats, REST vs SOAP, and protocols used in integrations

• File formats: JSON, XML, CSV, Excel, PDF

• REST vs SOAP: REST is lightweight, uses standard HTTP methods, stateless; SOAP is protocol-based, uses XML, more secure

• Protocols: HTTP, HTTPS, FTP, SFTP, SMTP, TCP/IP

To fix a problem in Ericsson equipment while doing configuration, follow these steps:

• Identify the problem and its root cause

• Check the configuration settings and make necessary changes

• Perform a system reset if required

• Contact Ericsson support if the issue persists

• Ensure proper documentation and communication with stakeholders

The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven different layers.

• Layer 1 - Physical layer: Deals with physical connections and transmission of raw data. Example: Ethernet

• Layer 2 - Data link layer: Manages data transfer between devices on the same network. Example: MAC addresses

• Layer 3 - Network layer: Handles routing and forwarding of data packets. Example: IP addresses

• Layer 4 - Transport layer: Ens...read more

Configuration of Ericsson equipment involves several steps.

• Access the equipment's configuration interface

• Identify the parameters to be configured

• Enter the appropriate values for each parameter

• Save the configuration changes

• Test the equipment to ensure proper functionality

Parameters required for LOS survey

• Location of the survey

• Frequency of the survey

• Sample size

• Survey questions

• Data collection method

HL7 has different segments for different types of information in a message.

• PID - Patient Identification

• PV1 - Patient Visit Information

• OBX - Observation/Result

• ORC - Common Order

• MSH - Message Header

A table with foreign keys and primary keys is created to establish relationships between tables.

• Foreign keys are used to link a column in one table to the primary key of another table.

• Primary keys uniquely identify each record in a table.

• Foreign keys ensure referential integrity and maintain data consistency.

• Example: Creating a 'Orders' table with a foreign key 'customer_id' referencing the 'Customers' table's primary key.

REST API is a type of web service that allows communication between different systems over HTTP.

• REST API stands for Representational State Transfer Application Programming Interface.

• It uses standard HTTP methods like GET, POST, PUT, DELETE for communication.

• Error codes in REST API include 4xx for client errors (e.g. 404 for not found) and 5xx for server errors (e.g. 500 for internal server error).

The bands used for IX are frequency bands that are allocated for internet exchange points.

• IXPs use various frequency bands depending on the region and country.

• Commonly used bands include 2.4 GHz, 5 GHz, and 60 GHz.

• Some IXPs also use licensed frequency bands for higher reliability and security.

• The choice of bands depends on factors such as interference, distance, and capacity requirements.

Grep is a command-line utility for searching plain-text data sets for lines that match a regular expression.

• Use grep followed by the pattern you want to search for and the file(s) you want to search within

• Use the -i flag for case-insensitive search

• Use the -r flag for recursive search in directories

• Use the -v flag to invert the match and show lines that do not match the pattern

• Use the -o flag to only show the matched part of the line

List of 20 commonly used Linux commands for system integration engineers.

• ls - list directory contents

• cd - change directory

• pwd - print working directory

• cp - copy files and directories

• mv - move/rename files and directories

• rm - remove files and directories

• mkdir - create directories

• rmdir - remove directories

• cat - concatenate and display files

• grep - search text patterns

• chmod - change file permissions

• chown - change file ownership

• ps - display process status

• top - display and update s...read more

5S practices involve daily meetings to ensure organization and efficiency in the workplace.

• Daily meetings are held to discuss progress, address issues, and plan for the day.

• These meetings help to ensure everyone is on the same page and working towards common goals.

• Examples of topics discussed include safety, quality, productivity, and improvement opportunities.

Setting daily targets helps in planning and achieving work efficiently.

• Break down larger tasks into smaller, manageable chunks

• Prioritize tasks based on importance and deadlines

• Allocate specific time slots for each task

• Regularly review and adjust daily targets as needed

LTE Call flow involves multiple steps for establishing and maintaining a connection between a mobile device and the network.

• UE sends a connection request to eNodeB

• eNodeB forwards the request to MME for authentication and authorization

• MME communicates with HSS for user authentication

• Once authenticated, MME assigns a temporary ID to UE and establishes a connection with eNodeB

• Data transfer occurs between UE and network through established connection

General Packet Radio Service

• GPRS stands for General Packet Radio Service

• It is a mobile data service that allows users to access the internet on their mobile devices

• GPRS uses packet switching technology to transmit data

• It is an evolution of the GSM network and provides faster data transfer speeds

• GPRS is commonly used for services like email, web browsing, and MMS

SQL query to retrieve all employees from a specific department

• Use SELECT statement to retrieve data

• Specify the columns to be retrieved

• Use WHERE clause to filter by department