oracle 1z0-404 practice test

Oracle Communications Session Border Controller 7 Basic Implementation Essentials Exam


Question 1

Which SIP headers in an incoming SIP message to the Session Border Controller are used by
a local-policy configuration element for routing?

  • A. From and To headers
  • B. From header and Request-URI
  • C. Call-Id header
  • D. Contact header
  • E. Via and To headers.
Answer:

D

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Question 2

Which two statements are true about SIP response code handling on the Session Border
Controller? (Choose two.)

  • A. The Session Border Controller will originate a 503 when there are no steering pool ports available.
  • B. The Session Border Controller will originate a 403 response when bandwidth allocated to a realm has been exhausted.
  • C. The Session Border Controller cannot originate 3xx class redirect responses.
  • D. By default, the Session Border Controller will recurse on the 6xx messages.
  • E. The Session Border Controller can transmit a different SIP response code than it received.
Answer:

A,C

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Question 3

Which statement is true about the Host In Path (HIP) feature In the Session Border
Controller?

  • A. By default, the Session Border Controller's FTP, ICMP, SNMP, and Telnet services cannot be accessed via the management interfaces.
  • B. To enable these services (FTP ICMP, SNMP, and Telnet services), the enable host-in-path command must be executed from the superuser mode.
  • C. To enable these services, the Session Border Controller includes a software license that enables administrative traffic over the media interfaces.
  • D. By default, the Session Border Controller's FTP, ICMP, SNMP, and Telnet services cannot be accessed via the media interfaces.
  • E. These four fields (FTP, ICMP, SNMP, and Telnet services) are collectively known as the Host Interface Priority.
Answer:

A

Reference:
https://docs.oracle.com/cd/E52358_01/doc/sbc_scx620_acliconfiguration.pdf

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Question 4

The Session Border Controller needs to be configured to act as a Back-to-Back User Agent
(B2BUA).
How would you accomplish this?

  • A. Navigate to the sip-config configuration element and set the operation-mode to stateless.
  • B. Navigate to the sip-config configuration element and set the operation-mode to dialog.
  • C. Navigate to the sip-config configuration element and set the operation-mode to stateful.
  • D. Navigate to the session-router configuration element and set the operation-mode to dialog.
  • E. Navigate to the session-router configuration element and set the operation-mode to none.
Answer:

B

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Question 5

You are associating network-interface configuration elements with a physical-interface
configuration element on the Session Border Controller.
Which parameter must contain the same unique ID in these two configuration elements?

  • A. port-id
  • B. identifier
  • C. unique-id
  • D. name
  • E. sub-port-id
Answer:

A

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Question 6

You made a configuration change to a media interface.
Which command must be executed to commit the change to volatile (RAM) memory?

  • A. From configuration mode, execute the done command.
  • B. From superuser mode, execute the write-config command.
  • C. From user mode, execute the save-config command.
  • D. From user mode, execute the commit-config command.
  • E. From superuser mode, execute the save-config command.
Answer:

A

Reference:
http://www.oracle.com/webfolder/technetwork/acmepacket/Additional%20Technical%20Sol
ution%20Documentation/SFB%20video%20ESBC.pdf

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Question 7

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

  • 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.
Answer:

B,E

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Question 8

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

  • 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
Answer:

D

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Question 9

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

  • 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
Answer:

D

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Question 10

You finished configuring a not Real Time Change (not RTC)-supported configuration
element and you want to apply the change in your service.
Which two options are valid in order to accomplish this? (Choose two.)

  • A. From user mode, execute the save-config and activate-config commands.
  • B. From configuration mode, execute the save-config, activate-config, and reboot commands.
  • C. From superuser mode, execute the save-config and activate-config and reboot commands.
  • D. From superuser mode, execute the save-config and activate-config commands.
  • E. From superuser mode, execute the save-config, activate-config, and reboot force commands.
Answer:

A,D

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