101 · Question #686

101 Question #686: Real Exam Question with Answer & Explanation

The correct answer is A: use SSL termination at the application delivery controller. An application delivery controller (ADC) reduces web server CPU load by performing SSL/TLS termination itself, offloading the computationally expensive cryptographic operations from backend servers.

Section 5: Application Delivery Basics

Question

What is one way that a application delivery controller lowers the CPU-load on web servers?

Options

Ause SSL termination at the application delivery controller
Bmake the application delivery controller function as a Firewall
Cmake the application delivery controller a member of both external and internal VLANs
Duse cookie persistence on the application delivery controller

Explanation

An application delivery controller (ADC) reduces web server CPU load by performing SSL/TLS termination itself, offloading the computationally expensive cryptographic operations from backend servers.

Common mistakes.

B. Functioning as a firewall adds inspection overhead to the ADC but does not reduce CPU load on web servers.
C. VLAN membership affects network segmentation and routing, not the computational workload placed on web servers.
D. Cookie persistence ensures session stickiness by routing a client to the same server, but it does not reduce the CPU work each server must perform.

Concept tested. ADC SSL termination offloading web server CPU

Reference. https://www.f5.com/services/resources/glossary/ssl-offloading-and-acceleration

Topics

#SSL termination#application delivery controller#CPU offloading

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