Dispatcher - Fundamentals Quiz 1

Question 1

When is stale cache content useful?

Why might Dispatcher serve stale content when a renderer fails?

Context: Dispatcher resilience

To bypass authorization permanently To preserve availability during temporary backend failure To update content faster To avoid using filesystem storage

Question 2

What is the main purpose of Dispatcher filters?

Why are Dispatcher filters important in front of publish?

Context: Dispatcher security

They index repository queries They allow or deny request patterns before they reach AEM They create editable templates They replace replication agents

Question 3

Tuning invalidation blast radius

What is the main benefit of increasing statfileslevel in Dispatcher?

Context: Cache invalidation

It forces all pages to revalidate on every request It disables cache invalidation entirely It reduces invalidation scope by touching .stat files deeper in the tree It enables browser-side caching headers automatically

Question 4

Why configure renderer health checks?

What do Dispatcher health checks help it do?

Context: Dispatcher renderers

Avoid sending requests to unavailable renderers Authenticate end users Precompile HTL scripts Purge every cached response

Question 5

How does Dispatcher choose a farm?

What is used to determine which farm handles a request?

Context: Dispatcher farms

The first matching virtual host configuration The largest cache directory The newest dispatcher.any file The request's JCR session

Question 6

Using rewritten URLs for cache lookup

When Apache rewrite rules modify incoming URLs before they reach AEM, which Dispatcher setting makes cache lookup use the rewritten form?

Context: Apache integration

DispatcherPassError DispatcherUseProcessedURL DispatcherKeepAlive DispatcherNoCanonURL

Question 7

What is a Dispatcher renderer?

In Dispatcher configuration, what does a renderer represent?

Context: Dispatcher configuration

A vanity URL mapping A backend AEM instance or load-balanced endpoint A client-side JavaScript engine A cache invalidation rule

Question 8

How can a cache hit be diagnosed?

Which response indicator commonly shows a Dispatcher cache hit?

Context: Dispatcher troubleshooting

A JCR property named jcr:hit A Dispatcher cache status response header An OSGi bundle state A replication queue entry

Question 9

Ignoring harmless query parameters

If a query parameter is configured to be ignored by /ignoreUrlParams, what is the caching effect?

Context: Cache key design

Dispatcher creates a separate cache file for each value Dispatcher treats requests differing only by that ignored parameter as the same cache entry Dispatcher forwards the request only to author Dispatcher refuses to cache the request

Question 10

What do Dispatcher cache rules control?

What is configured through cache rules?

Context: Dispatcher cache

Which OSGi bundles start Which node types are indexed Which users can log in Which paths may or may not be cached

Question 11

What does cache invalidation usually accomplish after content activation?

When content is activated, what should a well-configured dispatcher flush mechanism do?

Context: Dispatcher cache behavior

Delete the repository Disable CDN caching permanently Invalidate or remove affected cached files so fresh content can be generated Restart all OSGi bundles

Question 12

Why restrict allowed HTTP methods?

What is the benefit of method restrictions in Dispatcher filtering?

Context: Dispatcher security

They enable replication They reduce exposure of unintended request methods They force HTTPS They make all responses cacheable

Question 13

What is the Dispatcher grace period for?

What behavior can a cache grace period support after invalidation?

Context: Dispatcher cache

Serving stale cached content briefly while fresh content is obtained Extending session cookies Bypassing filters for editors Deleting all cache files immediately

Question 14

What does an invalidation action control?

What can an invalidation action specify?

Context: Dispatcher cache

Which backend renderer receives traffic How cache entries are marked or removed after invalidation How SSL certificates are renewed How HTML is minified

Question 15

What does the clientheaders section configure?

What is its primary purpose?

Context: Dispatcher requests

Which incoming HTTP headers Dispatcher forwards to renderers Which IP addresses can access author Which cache files are deleted Which response bodies are compressed

Question 16

Why configure ignored URL parameters?

What is the result of ignoring selected query parameters for caching?

Context: Dispatcher cache

They are removed from AEM requests They disable cache invalidation They do not create separate cache variations They become request headers

Question 17

Safe filter strategy

What is the safer starting point when defining Dispatcher request filters?

Context: Security filtering

Allow everything and deny later if needed Forward all admin URLs publicly Disable caching first Deny by default and allow only required patterns

Question 18

What does the Dispatcher docroot define?

What is the purpose of the cache docroot setting?

Context: Dispatcher cache

The author instance URL The list of allowed HTTP methods The filesystem directory where cached files are stored The publish run mode

Question 19

What does a Dispatcher Flush agent do?

What is the purpose of this AEM replication agent?

Context: Dispatcher invalidation

It indexes repository content It uploads code to Cloud Manager It synchronizes user profiles It notifies Dispatcher to invalidate cached content

Question 20

Why use a vanity URL file with Dispatcher?

What problem does the generated vanity URL file address?

Context: Dispatcher URL handling

It lets Dispatcher recognize configured vanity URLs It redirects all requests to author It encrypts vanity URLs It creates vanity URLs automatically

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Dispatcher – Fundamentals Quiz 1

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