Realistic 300-080 Exam Questions and Answers 2021

NEW QUESTION 1
Calls drop right after the called party tries to answer the call. Which of the below reasons is true?

• A. Phone A is using SCCP and phone B is using SIP
• B. Firewall is blocking RTP packets
• C. An incompatible MTP type is allocated to the call
• D. Codec are mismatched between phones

Answer: D

NEW QUESTION 2
Call from a Cisco IP phone out to the PSTN through a SIP trunk intermittently drop after the call is active for exactly 15 minutes. When process is failing?

• A. SIP OPTIONS Timeout
• B. SIP Session Refresh
• C. SIP Expires Timeout
• D. SIP Dialog Refresh
• E. SIP REGISTER Refresh
• F. SIP Keepalive Timeout

Answer: C

NEW QUESTION 3
Refer to the exhibit, which displays the output of the debug ccsip messages command on a Cisco router.

What is the negotiated dual tone multifrequency on this call?

• A. h245-alphanumeric
• B. rtp-nte
• C. sip-kpml
• D. sip-notify
• E. cisco-rtp
• F. h245-signal

Answer: B

NEW QUESTION 4
You recently configured a system for B2B SIP URI calls, and users confirmed that they could make calls. You are receiving multiple reports that inbound calls are failing and that users are not receiving calls to their URI. You confirm that all zones between expressways are active, and the trunk between Cisco Unified Communications Manager and Cisco VCS Expressway is active. You also see that the inbound call is sent from Cisco VCS Expressway C to Cisco Unified Communications Manager. Why are the calls failing?

• A. The Cisco Unified Communications Manager FQDN was not set.
• B. The cluster FQDN was not set in Enterprise Parameters.
• C. The certificate is not valid.
• D. The cluster FQDN was not set in Service Parameters.
• E. The FQDN was not registered in DNS.

Answer: B

NEW QUESTION 5
Refer to the exhibit.

Media Termination Point is required when the H.264 codec-capable video endpoints route calls via a specific Cisco Unified Communications Manager SIP trunk, in order to provide DTMF interworking capabilities. In the exhibit, a designated IOS Software MTP is configured. However, calls establish as audio only when using this particular MTP. Which codec is missing from this IOS MTP configuration?

• A. codec pass-through
• B. codec h264 cif
• C. codec h263 cif
• D. codec h264 720p

Answer: A

NEW QUESTION 6
A Cisco TelePresence SX80 Dial is registered on Cisco Unified Communications Manager is calling a registered H.323 endpoint that is registered to a Cisco VCS Control within the same campus. The call is placed using 6 Mb, however only a 1 MBCall is set up. Where can you find two possible causes for this issue? (Choose two)

• A. The Cisco TelePiesence SX80. which needs an option key to call over 2 M
• B. which also enables multisite calls
• C. in the Region settings in Cisco Unified Communications Manager
• D. bandwidth settings in the SIP trunk profile
• E. legacy telepresence systems that are registered to the Cisco VCS Control and can only do 1 Mb towards a Cisco Unified Communications Manager system
• F. a link and pipe configuration on the VCS to Osco Unified Communications Manager subzone
• G. in the subzone settings of the registered H 323 endpoint

Answer: C

NEW QUESTION 7
What is the maximum number of characters that you can use in Service Advertisement Framework (SAF) forwarder name?

• A. 10
• B. 20
• C. 30
• D. 40
• E. 50
• F. 60

Answer: E

NEW QUESTION 8
Refer to the exhibit.

Intersite calls that are placed across the IP WAN are dialed with the on-net access code 8, followed by the one-digit site code and the four-digit extension of the called party. In order to preserve these dialing habits when the IP WAN is down and Cisco SRST is active, the internal numbers must be converted into E.164 numbers before sending them to the PSTN.
Which configuration allows PSTN calls from the New York site to the San Jose site over the PSTN, while preserving the end user’s six-digit dialing habit?
A)

B)

C)

D)

• A. Option A
• B. Option B
• C. Option C
• D. Option D

Answer: B

NEW QUESTION 9
During ABusiness-to-business video call through the Cisco Expressway solution, the internal endpoint can call out to the remote endpoint on the Internet, but it does not receive audio or video. The remote endpoint receives both audio and video. What is causing the issue?

• A. The Cisco Expressway does not have a Rich Media Session license.
• B. The firewall is blocking SIP signaling.
• C. The Cisco Unified Communications Manager is not configureDFor business-to-business calling.
• D. The firewall is blocking inbound RTP ports.
• E. The Advanced Networking option is not installed on the Expressway Edge.

Answer: D

NEW QUESTION 10
In an MCU call with three Cisco TelePresence MX800 systems and a mobile phone calling in, the three TelePresence MX800 systems suddenly experience low audio levels, but the mobile phone audio levels are
correct. What can you do to correct this issue?

• A. Turn off the audio processors on the TelePresence MX800.
• B. Use the mobile phone audio option on the TelePresence MX800 to adjust the mobile phone levels.
• C. Mobile phone audio levels can vary, so you cannot correct the issue.
• D. Turn on AGC on the MCU to adjust the audio levels.
• E. Turn on ALG on the MCU to adjust the audio levels.
• F. Turn on the Auto Adjust levels under "Settings > Audio" on the MCU.

Answer: D

NEW QUESTION 11
After you deploy cisco Unified communications Manager Device Mobility across a VPN connection with Cisco Unified IP phones, users in remote locations report one-way audio issues. Which two actions can you take to locate the problem? (Choose two.)

• A. Verify that DMI is configured with the correct IP subnets.
• B. Verify that the Cisco IOS devices on the VPN support audio connections.
• C. Verify that the VLANs at remote locations are configured correctly.
• D. Verify that users at the remote locations are connecting to the closest enterprise VPN concentrator.
• E. Verify that the firewall is allowing RTP traffic flow.

Answer: BE

NEW QUESTION 12
You are troubleshooting video quality issues on a Cisco TelePresence TX9000 Series system. Which CLI command shows the total number of lost video packets and the received jitter during a Call in progress?

• A. show call statistics video
• B. show call statistics all
• C. show call statistics detail
• D. show call statistics video detail

Answer: D

NEW QUESTION 13
A network administrator is troubleshooting a support ticket with ID33118456 regarding video bandwidth issues. On a Cisco TelePresence VCS, the administrator can configure bandwidth control for which two VCS configuration options? (Choose two)

• A. links and pipes
• B. subzones
• C. CPL
• D. Bandwidth restrictions can be configured only on endpoints.
• E. zones

Answer: AB

NEW QUESTION 14
Refer to the exhibit.

Cisco Unified Communication Manager has been configured with a SAF Security Profile and a SAF Forwarder. In which section of the R1 router configuration should the SAF Forwarder password be entered?

• A. interface loopback 0
• B. router eigrp saf
• C. service-family external client
• D. service-family ipv4

Answer: C

NEW QUESTION 15
An engineer configured a Cisco TelePresence server with two Cisco acquired Codian devices. Users are reporting that the image looks frozen and the audio contains static and is garbled on one of the devices. What is the root cause of the issue?
Refer to the exhibit.

• A. There is a mismatch in the port configuration.
• B. The input flow control is off.
• C. The QoS that is configured on the port is set to FIFO
• D. There are packet drops in the ingress queues

Answer: D

NEW QUESTION 16
Refer to the exhibit.

A new phone was installed and currently has issues registering with Cisco Unified Communications Manager. The phone received its IP address via DHCP, with options 3 and 150.
Which two actions woulDEnable the phone to download its configuration automatically? (Choose two.)

• A. Change the phone URL parameters to IP addresses.
• B. Provide DHCP option 6 to the phone via DHCP.
• C. Reboot the phone.
• D. Change the VLAN that the phone is assigned to.
• E. Manually assign the phone settings.
• F. Provide DHCP option 15 to the phone via DHCP.

Answer: AB

NEW QUESTION 17
You try to register a new H.323 endpoint to a Cisco VCS server, but the endpoint does not register correctly. You successfully check network connectivity and VCS registration with other devices. Which issue and solution will resolve this registration problem?

• A. Cisco VCS Server H.323 service must be restarted to activate the new endpoint.
• B. The Registration Policy is set to "Deny List" so all new endpoints are rejecte
• C. Set the Policy to "Allow List" so that the endpoint can register themselves and then reassign the "Deny List" Setting for security reasons.
• D. The new endpoint has not been assigned with the correct registration domain, so configure the correct domain on the endpoint.
• E. The Registration Policy is set to "Allow List" and the newly addeDEndpoint has to be added to the list, because only listed devices are allowed to register.

Answer: D

NEW QUESTION 18
An engineer is troubleshooting an intersite call between two endpoints where calls are intermediately failing with the error message: “488 Not Acceptable Media”. Which option causes this error message to trigger?

• A. The device pool contains more call processing agents in the CMG group than the endpoint can support.
• B. MRGL contains more media groups than the endpoint can support.
• C. A lower bandwidth is set in the location than the endpoint can support.
• D. The hunt group contains more devices than the endpoint can support.

Answer: C

NEW QUESTION 19
You are experiencing bad video quality in calls, and you suspect packet loss in the network. Both the network switch and the collaboration endpoint network interfaces are set to autonegotiation, but the reported port speed and duplex settings do not match. Which action should you take?

• A. Set the collaboration endpoint to use a manual speed and duplex setting of 100 Mbps anDFull duplex, and keep the switch port setting as "auto."
• B. Configure the switch port to use a manual speed and duplex setting of 100 Mbps and half duplex, and keep the collaboration endpoint setting as "auto."
• C. Keep both the switch port and collaboration endpoint settings as "auto," because this configuration is not responsible for the mismatched settings that were reported.
• D. Set both the collaboration endpoint and the switch port to use manual speed and duplex settings of 100 Mbps anDFull duplex.

Answer: D