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 troubleshooting a SIP routing issue and you haveaccess to the SIP call ow processed by the Session Border Controller. Which two steps are valid for troubleshooting this type of issues? (Choose two.)

Options :

A :

It is necessary to locate the SIP session to troubleshoot and check if there is a 404 Routes Not Found SIP error message.

B :

It is recommended to look for 183 Session Progress SIP error messages that indicate routing issues.

C :

t is recommended to check the called number by looking at the Request-URI of the INVITE message and making sure it is a validnumber to be routed.

D :

It is recommended to find the CANCEL method received by the Session Border Controller which typically identifies a SIP routing issue.

E :

It is necessary to find an initial INVITE received by the Session Border Controller which getsa 503 Service Unavailable SIP error message.

Answer: D,E

Question 3

You want to prevent the Session Border Controller from generating aunique Call-ID and from modifying the dialog tags. How would you accomplish this?

Options :

A :

Navigate to the sip-interface configuration element and set the dialog-transparency parameter to disabled

B :

Navigate to the sip-config configuration element and set the dialog-mapping parameter to disabled.

C :

Navigate to the sip-config configuration element and set the call-id-transparency parameter to disabled.

D :

Navigate to the sip-config configuration element and set the dialog-transparency parameter to disabled.

E :

Navigate to the sip-config configuration element and set the dialog-transparency parameter to enabled.

Answer: E

Question 4

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 5

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

Higher Test Marks with Free Online 1Z0-404 Exam Practice

Buying Options: