Nokia 4A0-255 Questions & Answers

Full Version: 150 Q&A



4A0-255 Dumps
4A0-255 Braindumps
4A0-255 Real Questions
4A0-255 Practice Test
4A0-255 Actual Questions


Nokia
4A0-255
Nokia Advanced Optical Network Design
https://killexams.com/pass4sure/exam-detail/4A0-255
Question: 1
Which of the following best describes Four Wave Mixing (FWM)?
A. FWM is a linear impairment that produces crosstalk four adjacent wavelengths are used.
B. FWM is a non-linear impairment that produces crosstalk at the sum and difference of two wavelengths.
C. FWM is a non-linear impairment resulting from varying velocities at different frequencies.
D. FWM is a linear impairment resulting from pulses broadening over ultra-longdistances
Answer: A
Question: 2
Which of the following statements about the recovery time for protection and restoration combined (PRC) is correct?
A. PRC can be as fact as sub-network connection protection (SNCP)
B. PRC is as fast as restoration mechanisms.
C. PRC has a recovery time that depends on the broken links.
D. PRC has a typical recovery time greater than 50 ms.
Answer: B
Question: 3
Which of the following best describes Flexgrid?
A. Flexgrid is based on flexible amplification stages
B. Flexgrid uses flexible guardband that can take any spacing.
C. Flexgrid is defined on a frequency grid spacing based on ,multiples of 12.5 GHz.
D. Flexgrid allows channel bandwidth central frequencies and guardband to take any value in the spectrum range.
Answer: A
Question: 4
Consider the exhibit that shows the OTN frame structure.

Which of the following sets of label is correct?
A. OUT: B: ODU: C: OPU: D: OPU
B. OUT: B: ODU: C: OPU: D: OCH
C. OPU: B: OTU: C: ODU: D: OPU
D. ODU: B: OYU: C: OPU: D: OPU
Answer: C
Question: 5
What is precision Time Protocol (PTP) designed for?
A. Precise time measurements
B. Synchronization of encryption entities
C. Shortest path discovery
D. Packet-based timing distribution
Answer: B
Question: 6
Suppose there is a 40 Gbit/s signal which has a symbol rate of Gbaud/s.
Which modulation format is being used?
A. QPSK
B. BPSK
C. 4QAM
D. DP-QPSK
Answer: C
Question: 7
Which of the following can be detected through power monitoring with an Optical Time Domain Reflect meter?
A. Intrusions on fibers
B. Power injection one channel
C. Hacking of L1 encryption
D. Intrusions in the cryptographic keys
Answer: B
Question: 8
Which of the following is recommended to reduce the latency of a 30km long link?
A. DCM-free amplifiers
B. Soft-decision FEC
C. Low-noise amplifiers
D. L1 encryption
Answer: C
Question: 9
Which of the following statements about GMPLS features is FALSE?
A. GMPLS is able to manage the optical network through the DC
B. GMPLS is able to control OTN networks.
C. GMPLS is able to compute the routing of the optical channels.
D. GMPLS is able to automatically provision the optical channels.
Answer: B
Question: 10
Which if the following statements about Recovery Time Objective (RTO) and Recovery Point Object Point Objective
(PRO) is FALSE?
A. RTO/PRO define business continually requirements for data center.
B. RTO/PRO defined the acceptable amount of data (in bits) that can be lost after a failure.
C. Data center mirroring has the most critical level of RT
D. RPO among DC applications.
E. Tier œ data centers have stricter RTO/PRO requirements than Tire Ÿ.
Answer: B

User: Ruza*****

Passing the 4a0-255 exam was long overdue for me, as my career development was associated with it, but I was always scared of the tough situation. Until I discovered the questions and answers provided by Killexams.com, which made me feel more secure. Going through the materials was no issue at all, thanks to the clear method of presenting the topics and the fast and specific answers, which helped me grasp the difficult concepts. I passed nicely and got my promotion, all thanks to Killexams.com.
User: Vadim*****

I purchased Killexams.com exam material for the 4a0-255 exam, and I was impressed with the quality of the questions provided. They were just as useful as the 4a0-255 questions, and I was able to pass the exam with ease. I highly recommend Killexams.com to anyone looking for focused prep materials to help them pass an exam. With Killexams.com help, you can add a complicated certification like 4a0-255 to your resume with ease.
User: Helena*****

I received a high score on the exam, and I credit my success to the comprehensive and easy-to-use materials provided by the platform. I highly recommend this site to anyone who is preparing for this exam.
User: Max*****

Thanks to the team at killexams.com, I obtained a score of 76% in the 4A0-255 exam, and I advise new customers to prepare using killexams.com as it is comprehensive.
User: Isidora*****

After trying various books, I was unsatisfied with the study material for the 4A0-255 exam. But Killexams.com Questions and Answers met all my expectations. The material was easy to understand, and I scored 89% in the real exam, which was beyond my expectations. Thanks to their excellent guide.

Features of iPass4sure 4A0-255 Exam

  • Files: PDF / Test Engine
  • Premium Access
  • Online Test Engine
  • Instant download Access
  • Comprehensive Q&A
  • Success Rate
  • Real Questions
  • Updated Regularly
  • Portable Files
  • Unlimited Download
  • 100% Secured
  • Confidentiality: 100%
  • Success Guarantee: 100%
  • Any Hidden Cost: $0.00
  • Auto Recharge: No
  • Updates Intimation: by Email
  • Technical Support: Free
  • PDF Compatibility: Windows, Android, iOS, Linux
  • Test Engine Compatibility: Mac / Windows / Android / iOS / Linux

Premium PDF with 150 Q&A

Get Full Version

All Nokia Exams

Nokia Exams

Certification and Entry Test Exams

Complete exam list