A university IT team is configuring server fail fallback for their 802.1X wired network. They want to ensure that when the RADIUS servers are unreachable, users can still authenticate using credentials stored locally on the switch. Which fallback authentication method should they configure?

RADIUS authentication with a different server

A warehouse uses MAC authentication for barcode scanners. The scanners must remain connected even if the RADIUS server fails. However, the security team is concerned that allowing unauthenticated access during an outage could be exploited. Which approach best balances the operational requirement with the security concern?

Configure fallback 'allow' but place the scanners in a restricted VLAN with limited access.

Configure fallback 'local-authentication' for the scanners.

Configure fallback 'allow' and place the scanners in the same VLAN as employees.

Configure fallback 'deny' to enforce security.

A network administrator is configuring fallback to local authentication on a Junos OS switch for a guest VLAN. The requirement is that after 3 failed RADIUS attempts, the switch should use local authentication. Which configuration elements must be set to achieve this?

Configure the RADIUS server as 'local' and set the retry count to 3.

Set the RADIUS retry count to 3 and configure the fallback action as 'local-authentication'.

Set the RADIUS timeout to 3 seconds and configure the fallback action as 'deny'.

Set the fallback action as 'allow' and configure the retry count to 3.

What is a key characteristic of fallback authentication methods?

They are automatically selected based on the user's role

They are used only when the primary RADIUS server is reachable

They are always less secure than the primary method

They provide an alternative way to authenticate users when the primary server fails

Which statement is true about fallback to captive portal?

It is only supported for 802.1X authentication

It requires the user to have a pre-configured local account

It presents a web page for the user to enter credentials

It automatically grants access without any user interaction

Juniper NetworksCertified Professional, Enterprise Routing and Switching (JNCIP-ENT)

Domain 5Objective 5

Server Fail Fallback JN0-650 Practice Questions (Page 4)

Part of the Layer 2 Authentication and Access Control domain, which makes up ~19% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~7–11 in this domain), expect 1–2 from this objective — we provide 29 practice questions to prepare you well beyond it. (estimate)

29questions here

6free pages

12concepts

Questions 16–20

16application · medium
A university IT team is configuring server fail fallback for their 802.1X wired network. They want to ensure that when the RADIUS servers are unreachable, users can still authenticate using credentials stored locally on the switch. Which fallback authentication method should they configure?
Select an answer first
17expert · hard
A warehouse uses MAC authentication for barcode scanners. The scanners must remain connected even if the RADIUS server fails. However, the security team is concerned that allowing unauthenticated access during an outage could be exploited. Which approach best balances the operational requirement with the security concern?
Select an answer first
18application · medium
A network administrator is configuring fallback to local authentication on a Junos OS switch for a guest VLAN. The requirement is that after 3 failed RADIUS attempts, the switch should use local authentication. Which configuration elements must be set to achieve this?
Select an answer first
19foundation · easy
What is a key characteristic of fallback authentication methods?
Select an answer first
20foundation · easy
Which statement is true about fallback to captive portal?
Select an answer first

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