Free Oracle 1z1-400 Exam Dumps Questions & Answers

Session Initiation Protocol (SIP) is an Application layer control protocol that performs which two functions?

• A.  Support redirection services.
• B.  Describe the supported media attributes for the session.
• C.  Reserve resources for multimedia sessions.
• D.  Provide network transport services for real-time applications such as voice and video.
• E.  Establish, modify and terminate multimedia sessions.

Which option tag is used for reliability of provisional responses in SIP messages?

• A.  Required
• B.  Supported
• C.  Prack
• D.  Rel
• E.  100rel

Which two parameters are NOT phy-interface parameters?

• A.  speed
• B.  hostname
• C.  sub-port-id
• D.  operation-type
• E.  name

Which two Net-Net 4500 Realm Bridging models are valid in a SIP environment?

• A.  Policy-Based Realm Bridging with Header Manipulation Rules (PBRB-HMR)
• B.  Single SIP-NAT Hosted in a Private Network (SSHPN)
• C.  Multiple SIP-NATs Homed in an Access Network (MSMHAN)
• D.  Policy-Based SIP-Realm-NAT (PBSRN)
• E.  Single SIP-NAT Homed in an Access Network (SSNHAN)

When the nat-traversal parameter is set to "always", the Session Border Controller compares the__________ and the Layer-3 source address to determine whether the endpoint is behind a NAT device and further compares the __________ to the Layer-3 source address to determine whether to add the registration to its registration cache.

• A.  From address; host address of the Contact URI
• B.  SIP Proxy IP address;SIP Registrar address
• C.  Sent-by of the bottom most Via header; host address of the Contact URI
• D.  Sent-by of the top most Via header; host address of the Contact URI
• E.  Host address of the Contact URI; From address