Cisco 300-080 Study Guides 2021

NEW QUESTION 1
You are trying to register an H.323-based Cisco TelePresence system to Cisco Unified Communications Manager and a Cisco DX70 system to the Cisco VCS Control. Why do neither of the units want to register?

• A. The H.323-based system needs an E164 number to register to Cisco Unified Communications Manager, and the Cisco DX70 needs to have the MAC address configureDFirst on the Cisco VCS Control.
• B. The H.323-based system needs to register to the Cisco VCS Control with an E.164 number, and the Cisco DX70 needs the TFTP address to register on the Cisco Unified Communications Manager.
• C. Both systems need to register to the Cisco VCS Control, but the H.323-based system needs to have the gatekeeper setting set to "Direct."
• D. Both systems need to register to the Cisco Unified Communications Manager, as the Cisco VCS Control is used only for firewall traversal.
• E. You need Cisco TelePresence Management Suite to register Cisco TelePresence systems.
• F. You need Cisco TelePresence Server to register Cisco TelePresence systems.

Answer: B

NEW QUESTION 2
Which two issues can prevent an IP Phone from receiving an IP address via DHCP? (Choose two.)

• A. The DHCP server is not on the same VLAN as the phone.
• B. The DHCP scope's leases are exhausted.
• C. DHCP Option 150 is incorrect.
• D. The TFTP server is not reachable.
• E. The DHCP scope is not defineDFor the subnet of the phone.

Answer: AB

NEW QUESTION 3
When identifying Cisco TelePresence Endpoint traffic characteristics, which three statements are true? (Choose three.)

• A. Latency, jitter, and loss are measured in a round-trip fashion.
• B. Latency, jitter, and loss are measured unidirectionally.
• C. Latency and loss are measured at a packet level, based on RTP header sequence numbers and time stamps.
• D. Latency and jitter are measured at a packet level, based on RTP header sequence numbers and time stamps.
• E. Jitter is measured at a video frame level, by measuring the arrival time of the video frame versus the expected arrival time.
• F. Jitter is measured at a packet level, by measuring the arrival time of the packet versus the expected arrival time.

Answer: BCE

NEW QUESTION 4
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 5
Cisco TelePresence System EX90-A anDEX90-B are in a Call. EX90-A tries to call EX90-C. When the call is dialed, EX90-B is put on hold. EX90-A anDEX90-C are connected, but there is no merge button on the touch panel. What is causing this issue?

• A. The multisite option key is missing.
• B. The multisite configuration is missing.
• C. The conference option key is missing.
• D. The conference configuration is missing.
• E. CiscoTelePresence systems cannot make multipoint calls without a Cisco TelePresence Server.
• F. The multipoint option key is missing.

Answer: A

NEW QUESTION 6
While troubleshooting a transcoding issue, where you need 32 G.711 to G.729a sessions, you realize the DSP capacity may be undersized.
Which two can support your requirement? (Choose two.)

• A. PVDM4-128
• B. PVDM4-32
• C. PVDM4-48
• D. PVDM4-16
• E. PVDM4-64

Answer: BE

NEW QUESTION 7
Cisco TelePresence Systems that are calling from a Cisco Unified Communications Manager cluster to an

• A. H.323 registered device on a Cisco Expressway Control do not wor
• B. However, calls from the H.323 Expressway registered devices to the same Cisco Unified Communications Manager registered systems do work.What are two possible reasons? (Choose two.)
• C. The SIP trunk has not enabled bidirectional mode.
• D. The call from Cisco Unified Communications manager to the Cisco Expressway Control does not match any search rule.
• E. Calls from Cisco Unified Communications Manager add “.5060” or “.5061” after the SIP address, unlike the Cisco Expressway Control.
• F. The Cisco Expressway Control is registered in the wrong partition.
• G. Both systems do not support TLS encryption

Answer: AC

NEW QUESTION 8
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 9
When you troubleshoot call connection problems in an H.323 gateway, which command allows you to verify the allocation of DSPs?

• A. debug voip dialpeer
• B. debug voip h324
• C. debug voip ccapi inout
• D. debug vtsp session
• E. debug voip tsp

Answer: D

NEW QUESTION 10
Users are reporting intermittent poor audio quality on VoIP calls. Which configuration area requires troubleshooting?

• A. network QoS
• B. media resource
• C. call routing
• D. phone setup

Answer: A

NEW QUESTION 11
A user is trying to call a mobile phone using the number 547895341, where 5 is the prefix to can off-net numbers. Calls to mobile phones have worked in past, but now the call does not work. Which three areas should you check, to resolve the issue? (Choose three)

• A. Verify that the Cisco Unified Border Element is running.
• B. Verify the search pattern.
• C. Verity the route pattern, route list, and route group.
• D. Check that Cisco VCS Control and Cisco VCS Express are getting through the firewall.
• E. Verify that me PSTN line is connected to the cisco Unified Communications Manager.
• F. Verify that the connection to anDFrom the Cisco Unified Border Element is good.

Answer: ACE

NEW QUESTION 12
Which statement indicates something that can cause an inbound PSTN call to an H.323 gateway that is configured in Cisco Unified Communications Manager to fail to ring an IP phone?

• A. The gateway is not registered in Cisco Unified Communications Manager.
• B. The gateway IP address that is configured in Cisco Unified Communications Manager does not matchthe IP address that is configured at the gateway in the h323-gateway voip bind srcaddr command.
• C. The Cisco Unified Communications Manager does not have a matching route pattern to match the called number.
• D. The gateway is missing the command allow-connections h323 to h323 under the voice service voip configuration.

Answer: B

NEW QUESTION 13
Which CLI command monitors ILS replication progress?

• A. utils ils findxnode
• B. utils ils show peer info
• C. utils ils showpeerinfo
• D. utils ils lookup

Answer: C

NEW QUESTION 14
Refer to the exhibit.

Assuming that the two Cisco SAF Forwarders are adjacent to each other and that no SAF clients have been configured, which statement is true?

• A. The Cisco SAF Forwarders will not establish a neighbor relationship because the service-family external-client configuration is missing.
• B. The Cisco SAF Forwarders will not establish a neighbor relationship because the eigrp label CUCME should be replaced with SAF.
• C. The Cisco SAF Forwarders will not establish a neighbor relationship because the service-family external-client configuration is missing as well as the static neighbor configurations.
• D. The Cisco SAF Forwarders will establish a neighbor relationshi
• E. No further configuration is required.
• F. Cisco SAF Forwarders will not establish a neighbor relationship until the SAF clients are configured and registered to the Cisco SAF Forwarders.

Answer: D

NEW QUESTION 15
What is the default interval for SAF hello packets?

• A. 15 seconds
• B. 15 seconds on links with speeds that are slower than T1 speeds
• C. 40 seconds
• D. 40 seconds on links with speeds that are slower than T1 speeds
• E. 60 seconds
• F. 60 seconds on links with speeds that are slower than T1 speeds

Answer: F

NEW QUESTION 16
After an IP Phone gets IP address information from DHCP, what is the next step in the initialization process?

• A. CTL and ITL files are downloaded.
• B. The phone requests its VLAN information.
• C. The DHCP offer is sent from the phone
• D. The TFTP server is contacted for configuration information.
• E. Nothing else is required, the phone is operational at this stage

Answer: D

NEW QUESTION 17
ACustomer reports trial calls that are made through the PSTN gateway drop after few seconds of being placed on mute. Which MGCP configuration command can you issue in the gateway to resolve this problem?
Refer to the exhibit.

• A. mgcp explicit hookstate
• B. mgcp max-walling-delay
• C. no mgcp rtp unreachable timeout
• D. no mgcp timer receive-rtcp

Answer: C

NEW QUESTION 18
An engineer implemented a new voice gateway using H.323 to integrate with Cisco Unified Communications Manager (CUCM) and is experiencing issues routing calls via the gateway, even though the network connectivity is working. The engineer wants to verify that the gateway is properly configured. What is an indication of correct configuration?

• A. Successful ping from CUCM to the gateway
• B. Gateway IP address in CUCM
• C. Trace route from the gateway to CUCM
• D. Gateway registration status in CUCM

Answer: B

NEW QUESTION 19
Refer to the exhibit.

You are trying to configure a new Cisco IOS MTP to register with Cisco Unified Communications Manager, but it fails to register. Which two changes are required so that the MTP registers successfully? (Choose two.)

• A. Restart the router.
• B. Bind the interface to Vlan5.
• C. The sccp ccm group should be 1.
• D. Associate the application with SCCP.
• E. Change the maximum sessions to 1.

Answer: BD