Cisco 642-427

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Cisco 642-427 Exam Overview:

Cisco 642-427 Exam Syllabus Topics:

Your 642-427 Exam Questions, Answered

What is the 642-427 exam all about?

The Cisco Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0) exam (code: 642-427) is the official Cisco exam that leads to the CCNP Voice certification. It sits at the Professional level of the Cisco certification track. It is also connected with related credentials such as CCNP Voice. Passing it proves to employers that your skills have been validated by Cisco itself, which is why the 642-427 credential keeps showing up in job postings.

How many questions are in the 642-427 exam, and how long does it take?

The Cisco Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0) exam gives you 90 minutes to work through 55-65. Pacing matters more than most candidates expect, so before exam day, run at least one full timed session in the Dumpkiller test engine to learn how long you can afford per question. If an item stalls you, flag it and move on — coming back later beats burning five minutes on a single question.

Are there any prerequisites for the 642-427 exam?

According to Cisco, the following applies: Valid CCNA Voice or any active CCIE certification was required for the CCNP Voice certification path.. Certification policies do change from time to time, so confirm the latest requirements on the official exam page at https://learningnetwork.cisco.com/s/exam-topics before you register.

Can I try the 642-427 practice questions before buying?

Yes. Dumpkiller offers a free 642-427 PDF demo so you can review the question style, difficulty, and explanations before committing to anything. After purchase, your Cisco Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0) material includes 365 days of free updates, and if your product expires after that, you can extend the update service at a 50% discount from your member zone.

What happens if I do not pass the 642-427 exam, and how is my order delivered?

If you take the corresponding 642-427 exam within 60 days of your purchase and do not pass, you can apply for a full refund under our 100% Money Back Guarantee, subject to a few conditions: the failed exam must be the one matching your purchase; sitting the exam within 3 days of purchase does not qualify, since that leaves too little preparation time; downloading the material without actually taking the exam does not qualify; free materials and expired orders are excluded; and the candidate name must match the payer name. To apply, send a scanned copy of your enrollment slip together with your official Score Report (PDF) within 2 days after the exam, and claims are processed within 7 days. If you would rather not take a refund, you can exchange your purchase for two free products of equal value while keeping the update service on the product you originally bought. As for delivery, everything is an instant download: your products are sent to your email within one minute of payment — contact customer service if nothing arrives within 2 hours — and there is no limit on the number of computers you can install the software on.

What topics are covered in the 642-427 exam?

The official Cisco Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0) syllabus is organized into 8 main domains. The first three are Cisco Unified Communications Manager, Voice Gateways and Trunks, and Media Resources. For the full domain-by-domain breakdown, see the complete Exam Topics outline above.

Cisco Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0) Sample Questions:

Question #1

Which option can cause an offnet call to fail?

A. phone protocol mismatch
B. voice codec mismatch
C. phone type mismatch
D. IP subnet mismatch

Question #2

Refer to the exhibit. A site is using four-digit extensions for internal calling. The voice-mail pilot number is 8000. Calls to extension 2001 hear the Cisco Unity opening greeting instead of the subscriber's greeting when forwarded to Cisco Unity.
What is the probable cause?

A. The Voice Mail Box Mask setting in Cisco Unified CallManager is set to 8000 instead of XXXX
B. Extension 2001 has not been defined in Cisco Unity.
C. A greeting has not been recorded for mailbox 2001.
D. The mailbox is configured with the E.164 number instead of the extension.
E. A call routing rule has been added that is preempting the Attempt Forward rule.

Question #3

You are configuring Troubleshooting Perfmon Data-Logging parameters. You want to specify the Cisco recommended file size that can be stored in a perfmon log file. What is the maximum file size value that you must specify?

A. 600 MB
B. 100 MB
C. 50 MB
D. 500 MB
E. 5 MB
F. 150 MB

Question #4

In a Cisco UCM single-site deployment, please choose the maximum number of IP phones that can register with a UCM cluster.

A. 7500
B. 10,000
C. 30,000
D. 2500

Question #5

You are troubleshooting why a user cannot make calls to the PSTN. You are reviewing trace files and you have found where the user's IP phone initiates the call but you never see the call go out the gateway. What is the next step in troubleshooting this issue?

A. Look in the SDL trace file to see if there is a signal to another Cisco Unified CallManager node with the same TCP handle.
B. Look in the IP Voice Media Streaming App trace file to see if an MTP was invoked.
C. Look in the MGCP trace file to determine which MGCP gateway the call was sent to.
D. Look in the SDL trace file to see if there is a signal to another Cisco Unified CallManager node with the same time-stamp.

Solutions: