Refer to the exhibit.

You are operating a converged network that is used to provide multiple types of services including
VoIP. You have received multiple complaints that the call quality for some of the calls is poor. You
determine that all calls with a reported problem transit via one common link in the core. This link
interconnects two CRS-1 core routers. The exhibit shows the QoS configuration of the port on both
CRS-1 routers.

What are the two most likely reasons for the problem? (Choose two.)

Your company is planning to add new line cards to all the core routers in the network to manage
expected growth in network traffic. As part of the upgrade plan, new higher-capacity power
supplies are being deployed prior to adding the new line cards to the routers. These new power
supplies have voltage and temperature monitoring capability that the existing power supplies do
not. You are attending a meeting with the engineering team to discuss the plan and support the
development of the method of procedure to replace the power modules.
Which two areas regarding the plan to roll out the new power modules should be addressed?
(Choose two.)

You are working as a Tier 2 NOC employee at a service provider. The service provisioning team
has opened a trouble ticket indicating that their provisioning application is timing out while

provisioning new MPLS VPNs for a large customer. They believe it is a network problem because
not every site is experiencing the provisioning failure. No actual customers have reported any
network problems. Upon receiving the ticket in your work queue, you perform basic
troubleshooting steps and find that ping, traceroute, and Telnet work to all the sites. You begin to
doubt that the network is at fault.
Which two steps should you take before escalating to Tier 3? (Choose two.)

Which three factors should you consider when recommending a maintenance window to execute a
rollout plan that is received from engineering? (Choose three.)

A VPLS network consists of provider edge routers that have fully meshed pseudowires. This
network runs both unicast and multicast traffic. This network recently experienced bandwidth- and
CPU-related performance issues. While monitoring the VPLS statistics and interface statistics, you
note that the network is experiencing an unusual amount of broadcasts and undesired multicast on
the network. Which two techniques should the operations team consider in addressing these
problems? (Choose two.)

Which three statements describe a baselining task? (Choose three.)

Scenario:
Your company hosts a Voice Over IP (VoIP) service for its customers. Your Voice Operations

center is responsible for all VoIP applications, including servers, gateways, and provisioning. The
NOC is responsible for the network infrastructure, including LAN, WAN, Firewalls, and QoS.
Your Voice Operations Center started receiving calls in the early morning from customers who did
NOT have dial tone and could NOT place or receive calls. The Operations Center was UNABLE to
find any problems with their applications. At this point, they switched from the primary call
manager to the secondary call manager to attempt to resolve the problem. This resolved the
problem and customers had dial tone and were able to place and receive calls.
It is now after 8:00 AM and both the Voice Operations Center and NOC are fully staffed for peak
activity hours. The tickets opened earlier are escalated and you are assigned to work with the
Voice Operations Center to find and fix the problem. You review the trouble tickets and then join
the scheduled teleconference to resolve the problem.
As a NOC member, which four initial questions should you ask to help isolate the problem?
(Choose four).

DRAG DROP
Drag and drop the term to its correct definition.

DRAG DROP
Arrange the tasks in the correct order to accomplish the task that is assigned to you.

DRAG DROP
Match each activity on the left against an appropriate phase in the security framework.