Online Access Free 1z1-404 Exam Questions

How doesthe 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 INVITEs
• B.by sending messages at a defined frequency
• C.by issuing PINGs to the endpoint's NAT address
• D.by changing the expires= parameter to a defined value in 200 OK responses to
  REGISTERs
• E.by sending Address Resolution Protocol (ARP) requests at a defined frequency

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

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

Your Session Border Controller is configured as the source and destination for all signaling messages and media streams coming into and leaving the provider's network.
Which two SIP functions does it provide? (Choose two.)

• A.Media gateway
• B.Back-to-Back User Agent (B2BUA)
• C.Data firewall
• D.Edge proxy
• E.an IP edge router

Which two statements are true about realm bridging in the Session Border Controller?
(Choose two.)

• A.Therealm-config configuration element provides G.711 to G.729 transcoding functions.
• B.The ingress realm and egress realm for a specific SIP session can be the same.
• C.You can only configure a single SIP port per realm.
• D.The ingress realm is always different than the egress realm for a specific SIP session.
• E.You can configure more than one SIP port per realm.

What configuration step is required for booting the SessionBorder Controller from an external FTP server?

• A.Navigate to the bootparams configuration branch and set the host inet field to the IP address of the external BOOTP Server from which the Session Border Controller can boot.
• B.Navigate to the system configuration branch and set the ip address field of the wancom1 management interface.
• C.Navigate to the bootparams configuration branch and set the ip address field of the destination SIP device with which the Session Border Controller needs to interact.
• D.Navigate to the bootparams configuration branch, set the host inet or Host IP, FTP username, and FTP password for the external FTP Server in which the image file resides.
• E.Navigate to the system configuration branch and set the ip address field of the wancom0 management interface.