Home » Citrix » 1Y0-340 » Which NetScaler feature can the engineer use to optimize the web application?
Scenario: A Citrix Engineer is trying to optimize a website that is load balanced on a NetScaler and is accessed by mobile users. The web application is complex and made up of hundreds of embedded images, scripts, and other objects per page. This limitation is creating a significant bottleneck, resulting in excessive load times.
Which NetScaler feature can the engineer use to optimize the web application?
A. Domain Sharding
B. SPDY (Speedy)
C. Multipath TCP
D. Minification
Correct Answer: A
Explanation/Reference:
Explanation:
The leading capability in this category is domain sharding. By default, browsers restrict the number of parallel connections that can be open to any one domain. Typically, fewer than ten are allowed. For complex web applications with hundreds of embedded images, scripts and other objects per page, this limitation can create a significant bottleneck resulting in excessive load times. With domain sharding, NetScaler MobileStream modifies administrator-selected URLs by breaking them into sub-domains to allow client web browsers to open multiple groups of parallel connections. As a result, object-heavy pages are downloaded and can be rendered up to 10 times faster. Also included in this category is cache extension, a capability that leverages advanced browser settings and NetScaler AppCache functionality to further improve performance by maximizing the practice of locally caching static content.
Reference: https://www.citrix.com/content/dam/citrix/en_us/documents/partner-documents/taking-mobile-delivery-to-the-next-level.pdf
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