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IT Certifications · 1Z0-404

Oracle Communications Session Border Controller Implementation Exam Practice Test

The Oracle Communications Session Border Controller Implementation Exam (1Z0-404) practice page covers SBC deployment and SIP signaling concepts. Its question bank samples TLS trust stores, SIP methods and headers, call routing and number translation, media troubleshooting, DNS service discovery, and signaling responses.

Exam overview

Exam providerOracle
Exam code1Z0-404
CategoryIT Certifications

About the Oracle Communications Session Border Controller Implementation Exam

SBC implementation work involves controlling how signaling and media move between communications networks. Relevant skills include interpreting SIP requests and responses, comparing messages at ingress and egress to isolate routing or policy changes, and using headers such as Record-Route to understand dialog routing. Configuration decisions can involve defining session agents and realms for distinct peers, applying number translation rules, and checking DNS SRV records when locating services. Troubleshooting also requires separating signaling failures from media problems: for example, a one-way-audio investigation should examine the media path and negotiated session details, while a 488 response points to an incompatibility in the request. TLS configuration adds certificate validation and trust-store behavior to the implementation picture. These concepts support building, validating, and diagnosing SBC call flows.

Sample Practice Questions

Review a selection from this exam's published US Practice Tests practice bank.

Question 1

When an SBC is configured to use a trusted certificate authority for a TLS connection, what does the trust store provide?

  1. ACertificates or trust anchors used to validate certificate chains
  2. BA list of RTP ports reserved for each codec
  3. CA table of called-number translations
  4. DA queue for SIP retransmissions
Show answerCorrect answer: A

A trust store contains trusted certificates or certificate-authority anchors used during certificate-chain validation. It is distinct from routing, media-port allocation, and retransmission handling.

Question 2

Before applying a major SBC configuration change, which practice best reduces operational risk?

  1. ASave a known-good configuration and define a validation and rollback plan
  2. BDisable all monitoring so alarms do not interrupt the change
  3. CApply the change simultaneously to every system without testing
  4. DDelete existing configuration records to avoid confusion
Show answerCorrect answer: A

A known-good backup and a documented validation and rollback plan provide a recovery path if the change causes service impact. Testing and monitoring should remain part of a controlled change process.

Question 3

What does the SIP OPTIONS method commonly allow a device to learn about a peer?

  1. AThe peer's capabilities or availability for SIP requests
  2. BThe peer's private key
  3. CThe contents of an established call's RTP stream
  4. DThe subscriber's billing balance
Show answerCorrect answer: A

OPTIONS can be used to query a SIP endpoint or server about its capabilities and, depending on implementation, availability. It does not expose cryptographic private keys, media contents, or billing data.

Question 4

What is the primary function of a SIP Record-Route header inserted by a proxy-like signaling element?

  1. ATo request that subsequent in-dialog requests traverse that element
  2. BTo specify the RTP codec for the session
  3. CTo identify the DNS server for the called party
  4. DTo carry the caller's authentication password
Show answerCorrect answer: A

Record-Route can establish a route set so that later requests within the dialog, such as BYE or re-INVITE, pass through the signaling element that inserted it.

Question 5

When diagnosing one-way audio through an SBC, which initial check is most directly useful?

  1. AConfirm that media addresses and RTP paths are reachable in both directions
  2. BVerify that the caller's display name contains no spaces
  3. CCheck whether SIP response codes are sorted numerically in logs
  4. DIncrease the DNS record time-to-live without reviewing call traffic
Show answerCorrect answer: A

One-way audio commonly indicates a media-path or address-reachability problem. Checking negotiated media addresses, routing, and bidirectional RTP flow is a practical starting point before making configuration changes.

Question 6

What is the main purpose of an SBC's number translation rule in a call-routing workflow?

  1. ATo transform a telephone number or called-party identifier according to configured patterns
  2. BTo compress RTP audio payloads
  3. CTo select the Ethernet duplex mode
  4. DTo renew a TLS certificate automatically
Show answerCorrect answer: A

Number translation rules modify number representations to meet dialing-plan or interconnection requirements. They do not alter media encoding or physical interface negotiation.

Question 7

When investigating a failed SIP call, why can comparing the ingress and egress signaling messages at an SBC be useful?

  1. AIt can show how the SBC transformed, forwarded, or rejected the signaling
  2. BIt proves that the far-end user's handset has working speakers
  3. CIt determines the physical cable category on each network
  4. DIt guarantees that media packets were received without loss
Show answerCorrect answer: A

Comparing message flow on both sides can help identify whether a request was forwarded and what changes occurred across the SBC. It cannot by itself prove endpoint hardware status or media quality.

How to use this practice test

The free practice session draws up to 20 random questions from the available 50-question bank. Answer each item as a call-flow or configuration decision, then use the displayed results to identify concepts to revisit, such as TLS trust, SIP routing, or media troubleshooting.

Preparation tips

  • Trace a SIP call from ingress to egress and note how headers, routing decisions, and responses can change at the SBC.
  • Review how TLS certificate validation uses a trust store, and distinguish peer identity checks from SIP routing behavior.
  • For one-way-audio scenarios, inspect media negotiation and the RTP path separately from SIP signaling success.
  • Compare generic peer handling with realm-specific session-agent definitions, focusing on how each affects destination selection and policy.
  • Practice interpreting OPTIONS, Record-Route, 488 responses, and DNS SRV records in their respective signaling or discovery contexts.
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