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Question #31

Your IPsec tunnel is configured with multiple security associations (SAs). Your SRX Series device supports the CoS-based IPsec VPNs with multiple IPsec SAs feature. You are asked to configure CoS for this tunnel.

Which two statements are true in this scenario? (Choose two.)

A . The local and remote gateways do not need the forwarding classes to be defined in the same order.
B . A maximum of four forwarding classes can be configured for a VPN with the multi-sa forwarding-classes statement.
C . The local and remote gateways must have the forwarding classes defined in the same order.
D . A maximum of eight forwarding classes can be configured for a VPN with the multi-sa forwarding-classes statement.

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Question #32

You have a multinode HA default mode deployment and the ICL is down.

In this scenario, what are two ways that the SRX Series devices verify the activeness of their peers? (Choose two.)

A . Custom IP addresses may be configured for the activeness probe.
B . Fabric link heartbeats are used to verify the activeness of the peers.
C . Each peer sends a probe with the virtual IP address as the destination IP address.
D . Each peer sends a probe with the virtual IP address as the source IP address and the upstream router as the destination IP address.

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Question #33

Exhibit:

Referring to the exhibit, which two statements are true? (Choose two.)

A . Hosts in the Local zone can be enabled for control plane access to the SRX.
B . An IRB interface is required to enable communication between the Trust and the Untrust zones.
C . You can configure security policies for traffic flows between hosts in the Local zone.
D . Hosts in the Local zone can communicate with hosts in the Trust zone with a security policy.

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Question #34

You have deployed an SRX Series device at your network edge to secure Internet-bound sessions for your local hosts using source NAT. You want to ensure that your users are able to interact with applications on the Internet that require more than one TCP session for the same application session.

Which two features would satisfy this requirement? (Choose two.)

A . address persistence
B . STUN
C . persistent NAT
D . double NAT

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Question #35

Exhibit:

Referring to the exhibit, which statement is true?

A . SRG1 is configured in hybrid mode.
B . The ICL is encrypted.
C . If SRG1 moves to peer 2, peer 1 will drop packets sent to the SRG1 interfaces.
D . If SRG1 moves to peer 2, peer 1 will forward packets sent to the SRG1 interfaces.

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Question #36

Which two statements are true about the procedures the Junos security device uses when handling traffic destined for the device itself? (Choose two.)

A . If the received packet is addressed to the ingress interface, then the device first performs a security policy evaluation for the junos-host zone.
B . If the received packet is destined for an interface other than the ingress interface, then the device performs a security policy evaluation for the junos-host zone.
C . If the received packet is addressed to the ingress interface, then the device first examines the host-inbound-traffic configuration for the ingress interface and zone.
D . If the received packet is destined for an interface other than the ingress interface, then the device performs a security policy evaluation based on the ingress and egress zone.

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Richtige Antwort: BC
BC

Explanation:

When handling traffic that is destined for itself, the SRX examines the host-inbound-traffic configuration for the ingress interface and the associated security zone. It evaluates whether the traffic should be allowed based on this configuration. Traffic not addressed to the ingress interface is handled based on security policies within the junos-host zone, which applies to traffic directed to the SRX itself. For more details, refer to Juniper Host Inbound Traffic Documentation.

When handling traffic that is destined for the SRX device itself (also known as host-bound traffic), the SRX follows a specific process to evaluate the traffic and apply the appropriate security policies. The junos-host zone is a special security zone used for managing traffic destined for the device itself, such as management traffic (SSH, SNMP, etc.).

Explanation of Answer B (Packet to a Different Interface):

If the packet is destined for an interface other than the ingress interface, the SRX performs a security policy evaluation specifically for the junos-host zone. This ensures that management or host-bound traffic is evaluated according to the security policies defined for that zone. Explanation of Answer C (Packet to the Ingress Interface):

If the packet is addressed to the ingress interface, the device first checks the host-inbound-traffic configuration for the ingress interface and zone. This configuration determines whether certain types of traffic (such as SSH, HTTP, etc.) are allowed to reach the device on that specific interface.

Step-by-Step Handling of Host-Bound Traffic:

Host-Inbound Traffic: Define which services are allowed to the SRX device itself:

bash

set security zones security-zone <zone-name> host-inbound-traffic system-services ssh

Security Policy for junos-host: Ensure policies are defined for managing traffic destined for the SRX

device:

bash

set security policies from-zone <zone-name> to-zone junos-host policy allow-ssh match source-address any

set security policies from-zone <zone-name> to-zone junos-host policy allow-ssh match destination-address any

Juniper Security

Reference: Junos-Host Zone: This special zone handles traffic destined for the SRX device, including management traffic. Security policies must be configured to allow this traffic.

Reference: Juniper Networks Host-Inbound Traffic Documentation.

Question #37

You are asked to select a product offered by Juniper Networks that can collect and assimilate data from all probes and determine the optimal links for different applications to maximize the full potential of AppQoE.

Which product provides this capability?

A . Security Director
B . Network Director
C . Mist
D . Security Director Insights

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Question #38

Exhibit:

Referring to the exhibit, which two statements are correct? (Choose two.)

A . The ge-0/0/3.0 and ge-0/0/4.0 interfaces are not active and will not respond to ARP requests to the virtual IP MAC address.
B . This device is the backup node for SRG1.
C . The ge-0/0/3.0 and ge-0/0/4.0 interfaces are active and will respond to ARP requests to the virtual IP MAC address.
D . This device is the active node for SRG1.

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Question #39

Exhibit:

Referring to the exhibit, what do you use to dynamically secure traffic between the Azure and AWS clouds?

A . You can dynamically secure traffic between the clouds by using user identities in the security policies.
B . You can dynamically secure traffic between the clouds by using advanced connection tracking in the security policies.
C . You can dynamically secure traffic between the clouds by using security tags in the security policies.
D . You can dynamically secure traffic between the clouds by using URL filtering in the security policies.

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Question #40

You are attempting to ping an interface on your SRX Series device, but the ping is unsuccessful.

What are three reasons for this behavior? (Choose three.)

A . The interface is not assigned to a security zone.
B . The interface’s host-inbound-traffic security zone configuration does not permit ping
C . The ping traffic is matching a firewall filter.
D . The device has J-Web enabled.
E . The interface has multiple logical units configured.

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