Oracle Oracle Certifications 1Z0-404 Questions & Answers

• Question 21:

  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-configconfiguration 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.

  Correct Answer: B

• Question 22:

  You are configuring the boot parameters in the Session Border Controller.

  Which three statements are true about the boot parameters? (Choose three.)

  A. A reboot is always required to apply any change to the boot parameters.

  B. The target name is usedfor domain name resolution.

  C. The system clock is a boot parameter.

  D. The boot parameters are stored in Non-Volatile Random Access Memory (NVRAM).

  E. The boot parameters are not affected by the activate-config command.

  Correct Answer: ACD

• Question 23:

  Which two statements are correct about configuring realms and their corresponding interfaces? (Choose two.)

  A. You can associate multiple home realms with a single network interface.

  B. You can configure more than one SIP interface per realm.

  C. Although you can use both TCP and UDP concurrently as the transport protocol, you can only have one SIP interface per realm.

  D. You can associate multiple realms with a single networkinterface.

  E. You can associate multiple network interfaces with a single realm only when either TCP or UDP is used as the transport protocol.

  Correct Answer: CD

• Question 24:

  What two problems do Network Address Translations (NATs)introduce into VoIP networks? (Choose two.)

  A. There are no major concerns with NATs.

  B. NATs block unsolicited incoming signaling and media.

  C. NATs block unsolicited incoming signaling but allow incoming media.

  D. NATs pinholes expire after aconfigurable time.

  E. NATs devices can be overloaded by incoming registrations.

  Correct Answer: DE

• Question 25:

  Which two states are needed by the active node while transitioning to standby? (Choose two.)

  A. Out of service

  B. Becoming-active

  C. Relinquishing-standby

  D. Relinquishing-active

  E. Becoming-standby

  Correct Answer: BD

• Question 26:

  To return the Session Border Controller configuration to a known, factory default state, you must____________.

  A. press the reset button on the front panel

  B. issue the delete-configcommand

  C. issue the set-system-state offline command

  D. issue the set-system-state offline

  E. issue the delete-config and reboot commands

  Correct Answer: E

• Question 27:

  You need to configure the Session Border Controller toperform load balancing between two downstream SIP proxies.

  Which option shows the configuration elements that you should configure for the load balancing feature?

  A. session-router and router-group

  B. realm-config and enum-group

  C. group-policy andload-policy

  D. proxy and proxy-pool

  E. local-policy and session-group

  Correct Answer: A

• Question 28:

  How does the SIP registrar server maintain the registered user's information in its database?

  A. by querying a DNS server

  B. by querying an ENUM server

  C. by creating a registration cache entry, which is an association between a layer 3 IP address and the User Agent (UA) Via address

  D. by creating a location record, which is an association between the Call-ID and the User Agent (UA) Contact address

  E. by creating a binding, which is an association between a globally unique SIP URI and the User Agent (UA) Contact address

  Correct Answer: D

• Question 29:

  A steering pool defines _____________.

  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

  Correct Answer: C

• Question 30:

  What is thedrawback of configuring Policy-Based Realm Bridging (PBRB) without the assistance of Header Manipulation Rules (HMRs)?

  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.

  Correct Answer: C