Mixed Mode JN0-637 Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   Which configuration step is required to enable mixed mode on a Junos security platform?

   • ASet the security policy to 'mixed' at the global level.
   • BAssign some interfaces to a Layer 2 security zone and others to a Layer 3 security zone.
   • CEnable the 'mixed-mode' flag on the routing instance.
   • DConfigure all interfaces as Layer 2 and then use VLAN tagging to route traffic.
   Reveal Solution Discussion Select an answer first
2. 12application · medium

   A hospital network uses an SRX in mixed mode. A nurse's workstation on a transparent segment (VLAN 10) needs to reach a print server on a routed segment (192.168.20.0/24). The security team has verified that the workstation can ping the SRX's routed interface IP. However, traffic from the workstation to the print server is being dropped. What is the most likely cause?

   • AThe security policy between the Layer 2 zone and the Layer 3 zone is missing or has incorrect source/destination addresses
   • BThe print server is in a different VLAN than the workstation
   • CThe SRX is not running the OSPF routing protocol
   • DThe workstation's default gateway is set to the print server's IP address
   Reveal Solution Discussion Select an answer first
4. 13application · medium

   An administrator is troubleshooting an SRX in mixed mode. A host on a transparent segment (VLAN 5) cannot reach a server on a routed segment (10.10.10.0/24). The administrator has confirmed that the security policy permits the traffic and that the host's default gateway is correct. Which command should the administrator use to verify that the SRX is learning the MAC address of the host on the transparent segment?

   • Ashow ethernet-switching table
   • Bshow security policies
   • Cshow interfaces terse
   • Dshow route
   Reveal Solution Discussion Select an answer first
5. 14expert · hard

   An SRX in mixed mode is not forwarding traffic between two transparent segments on the same VLAN. The administrator has verified that the security policy permits the traffic and that both interfaces are in the same Layer 2 zone. What is the most likely cause of the forwarding failure?

   • AThe SRX is not running STP
   • BThe interfaces are in different security zones
   • CThe two interfaces are not in the same VLAN
   • DThe security policy is applied in the wrong direction
   Reveal Solution Discussion Select an answer first
6. 15foundation · easy

   How does mixed mode handle VLAN-tagged traffic on a transparent interface?

   • AThe device routes the VLAN-tagged traffic based on the VLAN ID.
   • BThe device drops VLAN-tagged traffic because it cannot process VLANs in mixed mode.
   • CThe device strips the VLAN tag and forwards the traffic as untagged.
   • DThe device forwards the VLAN-tagged traffic at Layer 2, preserving the VLAN tag.
   Reveal Solution Discussion Select an answer first