Web Architect Mock Interview
Master 30 Web Architect interview questions covering system design, scalability, and technical leadership.
Question 28 of 30
What is sticky session load balancing, and how does this relate to the concept of session affinity?
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William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
One of the key elements of an effective website is its ability to engage users and encourage them to stay on the site, exploring its resources, offerings, and other elements. This is how organizations generate revenues through their websites. Your understanding of this and your ability to incorporate these principles into our web architectures is of great interest to the interviewer. They are likely to ask you several questions similar to this one about this concept.
William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
This is a complex question since it asks you about one technology and then requests that you compare it to another similar one. You can frame your response by first defining sticky session load balancing and then briefly defining session affinity. You can follow this by pointing out how these two concepts relate to each other and their differences.
William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
"A sticky session is a popular load balancing technique that requires a user session to be served by an allocated server. Normally, a load-balanced server stores user information in a session. It makes the session data available to all servers. Sticky sessions avoid this by always serving a particular user session request from a single server. The server becomes associated with a session as soon as it is created. All the requests in a particular session are always redirected to the designated server. This is typically accomplished using the sessionId cookie. The cookie is sent to a client on the first request. Every ensuing request by the same client must contain the same cookie."
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