Nortel certification 920-803 exam targeted exercises

Many people think that passing some difficult IT certification exams needs to be proficient in much of IT expertise and only these IT personnels who grasp the comprehensive IT knowledge would be able to enroll in the exam. In fact, there are many ways to help you make up for your lack of knowledge, and pass the IT certification exams in the same. Perhaps you would spend less time and effort than the people who grasp fairly comprehensive expertise. The saying goes, all roads lead to Rome.

Nortel 920-803 exam is an popular examination of the IT industry , and it is also very important. We prepare the best study guide and the best online service specifically for IT professionals to provide a shortcut. ITCertKing Nortel 920-803 exam covers all the content of the examination and answers you need to know . Tried Exams ot ITCertKing , you know this is something you do everything possible to want, and it is really perfect for the exam preparation.

The exam questions and answers of general Nortel certification exams are produced by the IT specialist professional experience. ITCertKing just have these IT experts to provide you with practice questions and answers of the exam to help you pass the exam successfully. Our ITCertKing's practice questions and answers have 100% accuracy. Purchasing products of ITCertKing you can easily obtain Nortel certification and so that you will have a very great improvement in IT area.

ITCertKing is a website which always provide you the latest and most accurate information about Nortel certification 920-803 exam. In order to allow you to safely choose us, you can free download part of the exam practice questions and answers on ITCertKing website as a free try. ITCertKing can ensure you 100% pass Nortel certification 920-803 exam.

If you are an IT staff, do you want a promotion? Do you want to become a professional IT technical experts? Then please enroll in the Nortel 920-803 exam quickly. You know how important this certification to you. Do not worry about that you can't pass the exam, and do not doubt your ability. Join the Nortel 920-803 exam, then ITCertKing help you to solve the all the problem to prepare for the exam. It is a professional IT exam training site. With it, your exam problems will be solved. ITCertKing Nortel 920-803 exam training materials can help you to pass the exam easily. It has helped numerous candidates, and to ensure 100% success. Act quickly, to click the website of ITCertKing, come true you IT dream early.

Exam Code: 920-803
Exam Name: Nortel (Nortel technology standards and protocol for ip telephony solutions)
One year free update, No help, Full refund!
Total Q&A: 55 Questions and Answers
Last Update: 2013-10-27

920-803 Free Demo Download: http://www.itcertking.com/920-803_exam.html

NO.1 A video conference is in progress between two networked locations using gigabit Ethernet. The video
conferencing application is using User Datagram Protocol (UDP) to transport the video and audio data.
Why should UDP be used instead of Transmission Control Protocol (TCP)?
A. TCP CANNOT handle streaming data applications.
B. UDP is better than TCP at seamlessly synchronizing voice and video together.
C. UDP serves as an efficient transport for handling real-time application traffic.
D. UDP uses less bandwidth than TCP in a WAN, but more bandwidth than TCP in a LAN.
Answer: C

Nortel test answers   920-803 braindump   920-803   920-803   920-803 certification training

NO.2 To achieve the QoS necessary to deliver voice between two points on a Frame Relay network, which
two items are required to guarantee that voice quality is maintained? (Choose two.) Assume that a
Permanent Virtual Circuit (PVC) is available to address converged voice and data.
A. a Variable Bit Rate (VBR) service type
B. a WAN access device that shapes traffic
C. a WAN access device that does NOT fragment voice IP packets
D. a WAN access device that can manage First-In, First-Out (FIFO) queuing
E. a Committed Information Rate (CIR) large enough to address the total peak voice traffic plus a portion
allocated for Best-Effort (BE) data
Answer: BE

Nortel test   920-803   920-803 test questions   920-803

NO.3 Which two CODECs have the least delay (processing or algorithmic)? (Choose two.)
A. B. 711
C. D. 723.1
E. F. 726
G. H. 729
Answer: AE

Nortel certification   920-803   920-803 certification   920-803 test answers   920-803 exam

NO.4 The basic attributes of Real-Time Protocol (RTP) provide for support of applications like voice and
video. Which three attributes of RTP support real-time applications? (Choose three.)
A. Timestamping
B. Packet sequencing
C. Header compression
D. Payload identification
E. Packet retransmission
Answer: ABD

Nortel   920-803   920-803   920-803   920-803

NO.5 What are two differences between IP, Asynchronous Transfer Mode (ATM) and Frame Relay (FR)?
(Choose two.)
A. ATM has a fixed cell size, but IP and FR do NOT.
B. FR has built in mechanisms within the protocol for QoS.
C. ATM is connectionless, but IP and FR are connection oriented.
D. IP is a Layer 3 protocol, but ATM and FR are Layer 2 protocols.
Answer: AD

Nortel   920-803 test answers   920-803

NO.6 How does Real-Time Control Protocol (RTCP), the control protocol of Real-Time Protocol (RTP), assist
RTP in handling packetized voice in an IP telephony environment?
A. Controls the RTP data flows.
B. Identifies sources and provides QoS feedback.
C. Interoperates with Transmission Control Protocol (TCP).
D. Controls the network bandwidth used by RTP data flows.
Answer: B

Nortel   920-803 exam dumps   920-803 demo   920-803 practice test

NO.7 Which CODEC delivers the greatest compression?
A. B. 711
C. D. 723.1
E. F. 726
G. H. 729
I. J. 729A
Answer: C

Nortel   920-803 questions   920-803 exam

NO.8 To implement VoIP on a customer's IP network, which transport protocol should you use to best meet
the real-time requirement for VoIP, and why?
A. User Datagram Protocol (UDP); It ignores lost packets.
B. Transmission Control Protocol (TCP); It retransmits lost packets.
C. User Datagram Protocol (UDP); The amount of delay time is bounded.
D. Transmission Control Protocol (TCP); The amount of delay time is bounded.
Answer: A

Nortel   920-803 exam dumps   920-803 certification training   920-803   920-803 pdf

ITCertKing offer the latest LOT-441 exam material and high-quality 70-331 pdf questions & answers. Our 000-318 VCE testing engine and MB6-871 study guide can help you pass the real exam. High-quality 000-276 dumps training materials can 100% guarantee you pass the exam faster and easier. Pass the exam to obtain certification is so simple.

Article Link: http://www.itcertking.com/920-803_exam.html