642-427 exam free demo is available for every one

Free demo has become the most important reference for the IT candidates to choose the complete exam dumps. Usually, they download the free demo and try, then they can estimate the real value of the exam dumps after trying, which will determine to buy or not. Actually, I think it is a good way, because the most basic trust may come from your subjective assessment. Here, Cisco 642-427 exam free demo may give you some help. When you scan the 642-427 exam dumps, you will find there are free demo for you to download. Our site offer you the 642-427 exam pdf demo, you can scan the questions & answers together with the detail explanation. Besides, the demo for the vce test engine is the screenshot format which allows you to scan. If you want to experience the simulate test, you should buy the complete dumps. I think it is very worthy of choosing our 642-427 actual exam dumps.

Cisco 642-427 braindumps Instant Download: Our system will send you the 642-427 braindumps file you purchase in mailbox in a minute after payment. (If not received within 12 hours, please contact us. Note: don't forget to check your spam.)

As a layman, people just envy and adore the high salary and profitable return of the IT practitioner, but do not see the endeavor and suffering. But as the IT candidates, when talking about the 642-427 certification, you may feel anxiety and nervous. You may be working hard day and night because the test is so near and you want to get a good result. Someone maybe feel sad and depressed for the twice failure. Not getting passed maybe the worst nightmare for all the IT candidates. Now, I think it is time to drag you out of the confusion and misery. Here, I will recommend the CCNP Voice 642-427 actual exam dumps for every IT candidates. With the help of the 642-427 exam study guide, you may clear about the knowledge and get succeeded in the finally exam test.

Actual questions ensure 100% passing

Before purchase our CCNP Voice 642-427 exam dumps, many customers often consult us through the online chat, then we usually hear that they complain the dumps bought from other vendors about invalid exam questions and even wrong answers. We feel sympathy for that. Actually, the validity and reliability are very important for the exam dumps. After all, the examination fees are very expensive, and all the IT candidates want to pass the exam at the fist attempt. So, whether the questions is valid or not becomes the main factor for IT candidates to choose the exam dumps. Cisco 642-427 practice exam torrent is the most useful study material for your preparation. The validity and reliability are without any doubt. Each questions & answers of 642-427 Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0) latest exam dumps are compiled with strict standards. Besides, the answers are made and edited by several data analysis & checking, which can ensure the accuracy. Some questions are selected from the previous actual test, and some are compiled according to the latest IT technology, which is authoritative for the real exam test. What's more, we check the update every day to keep the dumps shown front of you the latest and newest.

I want to say that the 642-427 actual questions & answers can ensure you 100% pass.

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

1. You are configuring the Call Control Discovery feature. You need to configure Hosted DN Group Configuration settings. What is the range of values that you can define in the PSTN Failover Strip Digits field?

A) 0-18
B) 0-20
C) 0-16
D) 0-14
E) 0-10
F) 0-12

2. Refer to the exhibit. You have received a trouble ticket stating that calls to international numbers are failing. To place an international call, users dial the access code "9," followed by "011," the country code, and the destination number. After entering the debug isdn q931 command on the MGCP gateway, you have the user attempt the call again.

Based on the debug output, what is the most likely cause of this problem?

A) The gateway dial peer needs to prefix "011" to the called number so the PSTN knows this is an international call.
B) The TON is incorrect.
C) The user's CSS does not permit international calls.
D) Cisco Unified CallManager is not stripping the access code before sending the call to the gateway.
E) The circuit is not configured correctly or has a physical layer issue.

3. What are three requirements for Quality of Service for voice calls? (Choose three.)

A) jitter less than or equal to 45 ms
B) loss less than or equal to 1 percent
C) jitter less than or equal to 30 ms
D) PoE-supported Layer 2 switches used to connect IP Phones
E) guaranteed bandwidth of 384 kbps for a voice call
F) one-way latency less than or equal to 150 ms

4. You have just configured Cisco CallManager. A few users in your organization complain that when they log out, the phones are reset. You need to provide a solution to this problem. What should you do?

A) Restart the TFTP service.
B) Reboot the phones.
C) Restart the Computer Telephony Integration (CTI).
D) Restart the Internet Information Service (IIS).
E) Edit the form.jsp file and make appropriate changes.
F) Change the DNS address to IP address.

5. Refer to the exhibit.

How does a switch port that receives marked traffic from a Cisco IP phone use the mls qos trust cos command?

A) For non-IP packets, the CoS is set to 7 and DSCP-to-CoS mapping is not applied.
B) The DSCP-to-CoS map is applied.
C) CoS is used to select the ingress and egress queues.
D) The CoS setting is modified according to the CoS-to-DSCP map.

Solutions: