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642-770 - Operational Foundations for Cisco(R) Service Provider Core Networks OFCN - Dump Information

Vendor Name : Cisco
Exam Code : 642-770
Exam Name : Operational Foundations for Cisco(R) Service Provider Core Networks OFCN
Questions and Answers : 89 Q & A
Updated On : March 22, 2017
PDF Download Mirror : 642-770 Brain Dump
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642-770 Demo and Sample

Note: Answers are below each question.
Samples are taken from full version.

642-770


QUESTION: 78

What are the four primary areas of analysis in measuring network performance? (Choose four.)


  1. traffic trend analysis

  2. service take-up trend analysis

  3. NetFlow analysis

  4. change rate analysis

  5. incident rate analysis

  6. syslog analysis


Answer: A, B, D, E


QUESTION: 79

According to the ITILĀ® v3 framework, which four categories are used to prioritize a Request for Change? (Choose four.)


  1. standard

  2. immediate (emergency)

  3. medium

  4. high

  5. intermediate

  6. low


Answer: B, C, D, F


QUESTION: 80

Which two opportunities for improvement are realized by trending the metrics for the total number of trouble tickets by severity per period (total and by support queue)? (Choose two.)


  1. better incident resource allocation

  2. collection of information relating to the incidents for higher-tier analysis

  3. understanding the effects of the incident management process improvements

  4. identifying the rate of change


Answer: A, C


QUESTION: 81

According to the ITILĀ® v3 framework, which four measurements or measurement modifications can contribute to improvement opportunities in traffic patterns or threshold crossing alarms? (Choose four.)


  1. Implementing hold-down timers on specific alerts that more accurately reflect the impact of an event on performance.

  2. Identify service take-up trends in monitoring network traffic to determine the adoption and growth of services offered across the network.

  3. Evaluate the impact the rate of incidents have on change.

  4. Evaluate the impact the rate of incidents have on performance.

  5. Evaluate the impact the rate of change has on performance.

  6. Evaluate the impact the rate of configuration item inconsistencies have on change.


Answer: A, B, D, E


QUESTION: 82

You have just completed a comprehensive study of the traffic patterns in your network. As you review the results, you discover a remote office that has not had any particular problems. However, the volume of voice quality related tickets has increased in the last two weeks. Which two possible causes would the traffic study show? (Choose two.)


  1. The route to this office is suboptimal and during peak traffic may cause a delay in packet delivery.

  2. The circuit to this office has excessive errored seconds continuously through the day.

  3. The circuit to this office is significantly oversubscribed.

  4. QoS is missing from the circuit configuration to this site.

  5. The circuit to this location experiences brief periods of congestion and excessive retransmits during these periods.


Answer: A, D


QUESTION: 83

What are the three most important concepts to remember about successful troubleshooting? (Choose three.)


  1. The best troubleshooters are born with a "gut" feel for solving problems.

  2. The network system you are troubleshooting must be well defined with knowledge and documentation.


  3. Network engineers that are effective troubleshooters succeed because of their ability to use diagnostic systems and software.

  4. The most successful troubleshooters develop a process, use it consistently, and constantly improve its effectiveness.

  5. Divide and conquer. Do not try to fix it, but narrow it down to its root cause.


Answer: B, D, E


QUESTION: 84

Which four common tools are used to troubleshoot networks using the Operations, Administration, and Maintenance methodology? (Choose four.)


  1. ping

  2. bash

  3. traceroute

  4. nslookup

  5. pong

  6. snoop


Answer: A, C, D, F


QUESTION: 85

Which two are benefits of proactive network maintenance? (Choose two.)


  1. gives an opportunity to prevent an outage

  2. gives an opportunity to resolve network incidents

  3. gives an opportunity to reduce change incidents

  4. gives an opportunity to update network devices


Answer: A, D


QUESTION: 86

Which four methods are used to notify operations that a parameter has exceeded a predetermined baseline value? (Choose four.)


  1. SNMP trap

  2. LEDs on processor

  3. threshold crossing alert

  4. syslog message

  5. configuration snapshot


  6. console alarm

  7. LEDs on line cards


Answer: A, C, D, F


QUESTION: 87 DRAG DROP


Answer:


Explanation:

DNSUDP 53


NTPUDP 123

AAA (RADIUS)UDP 1812/1813


QUESTION: 88 DRAG DROP


Answer:


Explanation: NTP123 DNS53 TACACS49 SNMP161

Syslog514


QUESTION: 89 DRAG DROP


Answer:


Explanation:

Sample Protocol Standard Configuration Template:

ACL Configuration ATM Configuration FR Configuration IP Routing Configuration

Spanning Tree Configuration IP Standards Template:

IP Address used

Routing Protocol Configuration Routing Protocol used


Subnet Size


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