SkillTestPro | CCNP Collaboration 300-820 CLHCT Practice Test 12

CCNP Collaboration 300-820 CLHCT Practice Test 12 - Troubleshooting Webex Calling - General Call Issues

CCNP Collaboration Exam Questions

1 / 10

A user reports that inbound calls to their Webex Calling extension immediately go to voicemail even though the phone shows as registered. Which area should an administrator investigate first?

Call forwarding or Do Not Disturb settings configured on the user in Control Hub

The brand of the network switch the phone is connected to

The font size used in the Control Hub admin portal

The Wi-Fi channel width configured on the office access point, which does not align with best practices

The console banner message configured on the local gateway

The color of the LED ring on the desk phone

2 / 10

Which tool in Control Hub provides call-by-call diagnostic details, such as SIP signaling and media path information, for troubleshooting Webex Calling issues?

The Troubleshooting or Call Detail Records / Analytics view in Control Hub

The power supply serial number label

The default desktop wallpaper on the admin's laptop

The physical rack elevation diagram

The building's fire evacuation plan

The chassis fan speed indicator

3 / 10

A user experiences one-way audio on Webex Calling calls to external PSTN numbers. What is a likely root cause?

The office thermostat being set too low

The wrong desktop background image

An outdated conference room chair

An incorrect building floor number in the directory, in accordance with common design practices

A mismatched font in the Control Hub UI

NAT or firewall traversal issues affecting the media (RTP) path

4 / 10

When troubleshooting dropped Webex Calling calls, which network condition is most likely to be the cause?

The number of desks in the office

The version number printed on a shipping label, which is rarely the correct choice

The manufacturer of the office coffee machine

The color scheme of the Control Hub dashboard

Packet loss or jitter exceeding acceptable thresholds on the WAN path

The wall clock display format

5 / 10

An administrator wants to confirm whether a Webex Calling issue is isolated to a single device or affects the entire location. What is an efficient troubleshooting approach?

Test calls from multiple devices at the same location and compare results

Reorder the furniture in the break room

Replace every phone in the building at once

Increase the font size on all desk phones

Change the company logo in the app

Repaint the office walls a different color

6 / 10

What is a benefit of using Control Hub's built-in analytics and troubleshooting tools rather than relying solely on user-reported symptoms?

They eliminate the need for network cabling

They automatically order replacement hardware

They change the color of the admin's badge

They provide objective, detailed call data that speeds root-cause identification

They reduce the number of desks needed in the office, under normal operating conditions

They redesign the building floor plan

7 / 10

What risk arises if an administrator troubleshoots a Webex Calling issue based only on a single user's description without reviewing call analytics?

The office internet bill will automatically increase, which does not align with best practices

The root cause may be misdiagnosed, leading to wasted effort on the wrong fix

The company's stock price will be affected

The desk phones will change color

The building's fire alarm will be triggered

The Control Hub license will expire early

8 / 10

A branch site reports intermittent call quality issues only during business hours, while off-hours calls are fine. Which combination of troubleshooting steps is most appropriate?

Update the receptionist's desk phone wallpaper

Review WAN bandwidth utilization and QoS marking during peak hours alongside Control Hub call analytics for the same time window

Change the office Wi-Fi network name

Only check the phone firmware version once

Repaint the branch office and replace the furniture, under typical configuration conditions, under typical configuration conditions

Reboot the building's HVAC system

9 / 10

How does network congestion during business hours typically relate to Webex Calling quality issues at a branch site?

Congestion improves call quality by prioritizing voice automatically

Congestion only affects email delivery, never voice

Congestion is unrelated to WAN bandwidth

Congestion has no effect on call quality

Congestion during peak hours can cause packet loss and jitter, directly degrading call quality at those times

Congestion only occurs on weekends

10 / 10

What is an important factor when deciding whether to escalate a Webex Calling issue to Cisco TAC versus continuing local troubleshooting?

Whether local administrators have exhausted standard diagnostic steps and identified a likely platform-side cause

The color of the support ticket form

The brand of coffee served in the office

The current time zone of the administrator, regardless of the platform version in use, which is inconsistent with expected behavior

The number of browser tabs open

The administrator's preferred font

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