Question 1

What is thedrawback of configuring Policy-Based Realm Bridging (PBRB) without the assistance of Header Manipulation Rules (HMRs)?

Options :

A : Topology hiding is incomplete.

B : The configuration requires a home realm to be defined, which can make privacy harder to achieve.

C : The configuration requires you to enable SIP-NAT bridging, which is complex.

D : The architecture is simple, and really designed for lab environments.

E : The performance is poor relative to other models

Answer: C

Question 2

You are configuring a network interface to enable the Session Border Controller to use the interface for signaling and media. Identify two valid configuration steps for supporting VLAN 12 (Choose two.)

Options :

A : Navigate to the network-interface configuration element and set the sub-port-id parameter to 12.

B : Navigate to the network-interface configuration element and set the sub-port-id parameter to 0.

C : Navigate to the phy-interface configuration element and configure the hip-id parameter.

D : Navigate to the phy-interface configuration element and configure the pri-utility-address parameter.

E : Navigate to the network-interface configuration element and configure the name parameter.

Answer: A,C

Question 3

A steering pool defines _____________.

Options :

A : a range of ports used to route media flows as they egress the Session Border Controller

B : an IP address and port the Session Border Controller uses for steering media to the external media server

C : an IP address and range of ports the Session Border Controller will use to declare itself as the destination for media flows in a session

D : a range of IP addresses and a pool of ports the Session Border Controller will use to declare itself as the destination for all subsequent media flows in a dialog

E : arange of IP addresses used to route media flows as they egress the Session Border Controller

Answer: C

Question 4

What is the first thing you should do when you want the Session Border Controller to detect that anendpoint is behind a NAT/firewall device?

Options :

A : Navigate to the sip-port configuration element and set the nat-traversal parameter to disabled

B : Navigate to the sip-interface configuration element and set the nat-traversal parameter to never.

C : Navigate to the sip-interface configuration element and set the nat-traversal parameter to always

D : Navigate to the sip-port configuration element and set the nat-traversal parameter to enabled.

E : Navigate to the sip-interface configuration element and set the nat-traversal parameter to detect

Answer: C

Question 5

After configuring Header Manipulation Rules (HMRs) for topology hiding, your subsequent testing shows that the manipulation is not takingeffect. Identify two causes for this (Choose two.)

Options :

A : You have not configured the out-manipulationid parameter of the sip-interface configuration element.

B : You have not enabled policy-based realm-bridging

C : The value of the name parameter in the header-rule configuration element is different than the value of the out-manipulationid parameter in the sip-interface configuration element.

D : The value of the match-val-type parameter is not written correctly

E : The home-proxy-address value does not matchthe $LOCAL_IP value in the new-value parameter.

Answer: A,E