Top 10 Questions for Interviewer Interview

1. Design a function to calculate the area of a circle

• The function would take the radius of the circle as input.
• It would then use the formula for the area of a circle (A = πr²) to calculate the area.
• The function would finally return the calculated area.

2. What is the difference between a class and an object in JavaScript?

Class vs Object

• A class is a template for creating objects.
• An object is an instance of a class.

Benefits of Classes

• Classes provide a way to organize and structure code.
• They can help to reduce code duplication.
• They can make code more readable and maintainable.

3. What is the purpose of the ‘this’ keyword in JavaScript?

• The `this` keyword refers to the current object.
• It can be used to access the properties and methods of the current object.
• It is also used to call methods on the current object.

4. What is the difference between a ‘let’ and ‘var’ variable in JavaScript?

• `let` is a block-scoped variable.
• `var` is a function-scoped variable.
• `let` variables are only accessible within the block in which they are declared.
• `var` variables are accessible from anywhere within the function in which they are declared.

5. What are the advantages of using a CSS preprocessor?

• CSS preprocessors can help to make CSS more maintainable.
• They can help to reduce code duplication.
• They can help to make CSS more readable.
• They can help to add features to CSS that are not natively supported.

6. What is the difference between a ‘GET’ and ‘POST’ request in HTTP?

• A GET request is used to retrieve data from a server.
• A POST request is used to send data to a server.
• GET requests are typically used to retrieve data that is safe to be cached.
• POST requests are typically used to send data that is sensitive or that should not be cached.

7. What is the purpose of a database?

• A database is a collection of data that is organized in a way that makes it easy to access and retrieve.
• Databases are used to store data for a variety of purposes, such as tracking customer information, managing inventory, and processing transactions.
• Databases can be used to improve the efficiency and accuracy of data processing.

8. What is the difference between a ‘JOIN’ and a ‘UNION’ in SQL?

• A JOIN is used to combine rows from two or more tables based on a common column.
• A UNION is used to combine the results of two or more SELECT statements.
• JOINs are used to create new tables from existing tables.
• UNIONs are used to create a new table from the results of two or more SELECT statements.

9. What is the purpose of a web server?

• A web server is a computer that hosts a website.
• It is responsible for delivering the website’s files to users’ browsers.
• Web servers can be used to host a variety of websites, from small personal blogs to large e-commerce sites.

10. What is the difference between a ‘CDN’ and a ‘DNS’?

• A CDN (Content Delivery Network) is a network of servers that deliver content to users based on their location.
• A DNS (Domain Name System) is a system that translates domain names into IP addresses.
• CDNs are used to improve the speed and reliability of content delivery.
• DNS is used to make it easier for users to access websites by remembering domain names instead of IP addresses.

Interviewers are responsible for conducting interviews with potential employees and making hiring decisions. They play a critical role in attracting and selecting the best talent for their organizations.

1. Interview Process

Interviewers design and conduct interviews to assess candidates’ qualifications and cultural fit. They ask probing questions, listen attentively to responses, and evaluate the candidate’s presentation, demeanor, and skills.

• Develop interview plans and questions
• Conduct structured and unstructured interviews
• Evaluate candidate responses using scoring rubrics

2. Candidate Screening

Interviewers review resumes, cover letters, and other materials to identify potential candidates. They screen candidates based on pre-defined criteria such as skills, experience, and education.

• Review applications and identify qualified candidates
• Contact candidates for scheduling and screening
• Conduct phone and video screenings

3. Hiring Decisions

Interviewers make hiring decisions based on their evaluation of the candidate’s qualifications, fit with the organization, and overall impression. They provide feedback to hiring managers and candidates and may participate in salary negotiations.

• Review interview notes and evaluation forms
• Make hiring recommendations to management
• Extend and negotiate job offers
.

4. Interviewer Training

Interviewers receive training to improve their interviewing skills and stay up-to-date on best practices. They participate in workshops, shadowing, and ongoing professional development.

• Attend training programs and workshops
• Shadow experienced interviewers
• Stay updated on industry trends and interviewing techniques

Preparing thoroughly for an interview is crucial for increasing your chances of success. Here are some tips to help you ace your next interview:

1. Research the Company and Role

Take the time to learn about the company and the specific role you’re applying for. Visit the company website, read industry news, and connect with current or former employees on LinkedIn. This will give you valuable insights into the company culture, work environment, and expectations.

• Visit the company website and LinkedIn page
• Read industry-related articles and news
• Connect with employees on LinkedIn and ask for insights

2. Practice Your Answers

Anticipate common interview questions and prepare your answers in advance. Practice your responses out loud to ensure they’re clear, concise, and demonstrate your skills and experience. Use the STAR method (Situation, Task, Action, Result) to structure your answers and provide specific examples.

• Review common interview questions and prepare answers
• Practice your responses aloud to improve delivery
• Use the STAR method to provide specific examples

3. Dress Professionally and Arrive on Time

First impressions matter. Dress professionally and arrive at the interview on time, or even a few minutes early. This demonstrates your respect for the interviewer and the company. Pay attention to your body language and make eye contact to convey confidence and enthusiasm.

• Wear appropriate business attire
• Arrive punctually or slightly early
• Maintain good posture and make eye contact

4. Ask Thoughtful Questions

Asking thoughtful questions at the end of the interview shows that you’re engaged and interested in the role and the company. Prepare a few questions that demonstrate your knowledge of the industry, the company, and the position. This is also a chance to clarify any uncertainties you have about the role or the company.

• Prepare thoughtful questions related to the role and company
• Ask about company culture, growth opportunities, and challenges
• Avoid asking about benefits or salary at this stage

5. Follow Up

Within 24-48 hours of the interview, send a thank-you note to the interviewer, reiterating your interest in the role and thanking them for their time. This is a chance to reinforce your qualifications and enthusiasm for the opportunity. If you haven’t heard back within a week or two, consider following up politely to inquire about the status of your application.

• Send a thank-you note within 24-48 hours
• Reiterate your interest in the role and thank the interviewer
• Follow up politely if you haven’t heard back within a reasonable timeframe