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Pass the Oracle Session Border Control 1z0-404 Questions and answers with ExamsMirror

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Questions # 1:

How does the Session Border Controller ensure that a pinhole is kept open for persistent communication to a SIP endpoint behind a NAT device?

Options:

A.

by changing the expires= parameter to a defined value in 200 OK responses to REGISTERs

B.

by changing the expires= parameter to a defined value in 200 OK responses to INVITEs

C.

by issuing PINGs to the endpoint's NAT address

D.

by sending Address Resolution Protocol (ARP) requests at a defined frequency

E.

by sending messages at a defined frequency

Questions # 2:

You are configuring access rules in a Session Border Controller Peering architecture.

Which two configuration steps are required to allow access only from User Agents (UAs) in a specific IP subnet? (Choose two.)

Options:

A.

Navigate to the sip-port configuration element and set the allow-anonymous parameter to realm-prefix.

B.

Navigate to the session-agent configuration element and set the ip-address parameter to the IP address of your trusted User Agent (UA).

C.

Navigate to the sip-port configuration element and set the allow-anonymous parameter to agents-only.

D.

Navigate to the sip-port configuration element and set the allow-anonymous parameter to all.

E.

Navigate to the realm-config configuration element and set the addr-prefix parameter to the IP subnet of your trusted User Agents (UAs).

Questions # 3:

Which three options are valid ways to apply Header Manipulation Rules (HMRs) to your existing configuration?

Options:

A.

Navigate to the network-interface configuration element and configure the in-manipulationid parameter.

B.

Navigate to the session-agent configuration element and configure the in-manipulationid parameter.

C.

Navigate to the sip-interface configuration element and configure the in-manipulationid parameter.

D.

Navigate to the session-agent configuration element and configure the in-manipulationid parameter.

E.

Navigate to the session-group configuration element and configure the in-manipulationid parameter.

Questions # 4:

What mechanism is used to ensure adjacent devices can redirect their Ethernet traffic to the Session Border Controller that takes over, when a Session Border Controllers fails over?

Options:

A.

Gratuitous ARP

B.

Reverse ARP

C.

Proxy ARP

D.

HSRP

E.

BOOTP

Questions # 5:

Which node automatically assumes the active role when peers boot simultaneously and their health scores are equivalent in a High Availability (HA) scenario?

Options:

A.

the node with the highest wancom IP address

B.

the node that is configured as secondary

C.

the node that had the role of active last

D.

the node with the lowest wancom IP address

E.

the node with the highest round-robin score

Questions # 6:

Which configuration step is required to route a SIP call based on the value of the SIP INVITE Request-URI?

Options:

A.

Navigate to the policy-attribute configuration element and configure the from-address parameter to match the Request-URI value.

B.

Navigate to the policy-attribute configuration element and configure the to-address parameter to match the Request-URI value.

C.

Navigate to the local-policy configuration element and configure the from-address parameter to match the Request-URI value.

D.

Navigate to the local-policy configuration element and configure the to-address parameter to match the Request-URI value.

E.

Navigate to the local-policy configuration element and configure the destination-address parameter to match the Request-URI value.

Questions # 7:

You want to configure the maximum duration in seconds of any session in the Session Border Controller.

How would you accomplish this?

Options:

A.

Navigate to the media-manager configuration element and configure the max-signaling-bandwidth parameter.

B.

Navigate to the media-manager configuration element and configure the flow-time-limit parameter.

C.

Navigate to the sip-config configuration element and configure the operation-mode parameter.

D.

Navigate to the sip-config configuration element and configure the flow-time-limit parameter.

E.

Navigate to the media-manager configuration element and configure the latching parameter.

Questions # 8:

You are examining a SIP packet. There is no final response to the ACK method.

What is the reason for this?

Options:

A.

The ACK method was defined only in RFC 2543 and it has been deprecated.

B.

The ACK method is part of the INVITE transaction.

C.

The ACK method is an exception in RFC 3261.

D.

The ACK method is an optional SIP method.

E.

The ACK method was replaced with the CANCEL method in RFC 3261.

Questions # 9:

You are troubleshooting a SIP routing issue and you have access to the SIP call flow 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.

It is recommended to check the called number by looking at the Request-URI of the INVITE message and making sure it is a valid number 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 gets a 503 Service Unavailable SIP error message.

Questions # 10:

What is the first thing you should do when you want the Session Border Controller to detect that an endpoint 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.

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