A Squid proxy is configured to require authentication for all users. The administrator notices in the access.log that some requests are being denied with a TCP_DENIED status, but the users insist they are entering valid credentials. The administrator also sees that the authentication helper is working correctly. What is the most likely cause of the denials?

The 'cache_mem' value is too low, causing authentication credentials to be evicted from memory.

The 'http_access' rules are not in the correct order, with a 'deny' rule for an unauthenticated ACL appearing before the 'allow' rule for authenticated users.

The 'auth_param' directive is missing the 'realm' option.

The 'maximum_object_size' is set too low, preventing large responses from being cached and causing denials.

LPI LPIC-2:Linux Engineer (201-450)

Domain 9Objective 3

208.3 Implementing Squid as a Caching Proxy (weight: 2) LPIC-2 Practice Questions (Page 3)

Part of the Topic 208: HTTP Services domain, which makes up ~11% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~4–7 in this domain), expect 1–2 from this objective — we provide 25 practice questions to prepare you well beyond it. (estimate)

25questions here

5free pages

8concepts

Questions 11–15

11foundation · easy
Which Squid directive is required to enable transparent proxy mode?
Select an answer first
12expert · hard
A Squid proxy is configured to require authentication for all users. The administrator notices in the access.log that some requests are being denied with a TCP_DENIED status, but the users insist they are entering valid credentials. The administrator also sees that the authentication helper is working correctly. What is the most likely cause of the denials?
Select an answer first
13foundation · easy
Which directive is used to apply an ACL to allow or deny access to the proxy?
Select an answer first
14foundation · easy
Which directive in squid.conf specifies the authentication scheme to use for the proxy?
Select an answer first
15foundation · easy
Which directive controls the maximum size of an object that Squid will store in the cache?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to LPIC-2

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by Linux Professional Institute. “LPIC-2” is a trademark of its owner, used for identification only.

208.3 Implementing Squid as a Caching Proxy (weight: 2) LPIC-2 Practice Questions (Page 3)

Questions 11–15

Which Squid directive is required to enable transparent proxy mode?

Which directive is used to apply an ACL to allow or deny access to the proxy?

Which directive in squid.conf specifies the authentication scheme to use for the proxy?

Which directive controls the maximum size of an object that Squid will store in the cache?

Keep studying — Topic 208: HTTP Services