350-801 CLCOR:Implementing and Operating Cisco Collaboration Core Technologies
Update：2026年1月16日
Questions and Answers: 595 Q&A
1.
An engineer implements QoS in the enterprise network. Which command can be used to verify the correct classification and marking on a Cisco IOS switch?
2.
An engineer must configure a SIP route pattern using domain routing with destination +13135551212. The domain ciscocm1 jupiter.com resolves to 192.168.1.3. How must the IPV4 Pattern be configured?
3.
Which field is configured to change the caller ID information on a SIP route pattern?
4.
A network engineer must configure XR-PE1 for uninterruptible failover from active RP to the standby RP Neither peer devices CGW1 nor the network of ASN 64512 support restart extensions Which configuration must the engineer apply to XR PEI to complete tasks?
5.
An administrator executes the debug isdn q931 command while debugging a failed call. After a test call is placed, the logs return a disconnect cause code of 1. what is the cause of this problem?
6.
A call to an international number has failed. Which action corrects this problem?
7.
An administrator troubleshoots call flows and suspects that there are issue with the dial plan. Which tool enables a quick analysis of the dial plan and provides call flows of dialed digits?
8.
A vendor wants to configure DTMF using named telephony events. SBCs must be backward compatible with legacy equipment using the out-of-band DTMF relay method to interwork with NTE successfully. Which two Cisco Unified Border Element-DTMF interworking capabilties work with NTE in a flow-through and flow-around mode when there is a locally registered transcoder? (Choose two.)
9.
Which two describe the main components of the methodology for system sizing adopted by Cisco? (Choose two.)
10.
An administrator is asked to implement toll fraud prevention in Cisco UCM, specifically to restrict off-net to off-net call transfers. How is this mplemented?
11.
What are two characteristics of jitter in voice and video over IP communications?(Choose two)
12.
The radio network and packet core are using the route RX-RZ-RB to establish communication. The LDP session between 10.10.10.5 and 10.10.10.1 is experiencing link flapping at random intervals for 30-45 seconds each time. A network engineer must protect the LDP session and improve MPLS traffic convergence. Which action meets these requirements?
13.
An engineer is going to redesign a network, and while looking at the QoS configuration, the engineer sees that a portion of the network is marked with AF42. Which type of traffic is marked with this tag?
14.
An engineer wants to manually deploy a Cisco Webex DX80 video endpoint to a remote user. Which type of provisioning is configured on the endpoint?
15.
In a company meeting, employees join virtually and listen. However, the SpeakerTrack device that is connected to a collaboration endpoint that follows the speaker suddenly stops working. What is the cause of thts issue?
16.
What is a consideration when provisioning network bandwidth for an IP network?
17.
Refer to the exhibit. An engineer configured NTP on Cisco UCM and runs the utils ntp status command from Cisco UCM CLI and receives an error message. How is this issue mitigated and fixed?
18.
If a phone needs to register with cucm1.cisco.com, which network service assists with the phone registration process?
19.
What is a function of a System Call Handler in Cisco Unity Connections?
20.
Which endpoint feature is supported using Mobile and Remote Access through Cisco Expressway?
21.
Refer to the exhibit. A customer submits this debug output, captured on a Cisco IOS router. Assuming that an MGCP gateway is configured with an ISDN BRI interface, which BRI changes resolve the issue?
22.
An engineer is configuring Cisco Jabber for Windows and must implement desk phone control mode for some of the users. Which access control group must be configured for those users to enable this functionality?
23.
A user forwards a corporate number to an international number. What are two methods to prevent this forwarded call? (Choose two.)
24.
Which destination does cisco UCM use DNS to resolve fully qualified domain names to IP addresses?
25.
Which version is used to provide encryption for SNMP management traffic in collaboration deployments?
26.
Refer to the exhibit. Drag and drop the flow step labels from the left into the correct order on the right to establish this call flow:
User 2 disconnects the call.
User 1 calls user 2.
User 2 answers the call.
Select and Place:
Answer：
Connect ACK
two-way voice path
100 Trying
two-way RTP channel
180 Ringing
step 3
step 5
step 4
step 2
step 1
提示
27.
An engineer is configuring IEEE 802.1 ad on the access port on a new Cisco router. The access port handles traffic from multiple customer VLANs, and it is expected to mark all customer traffic to the same VLAN without dropping any traffic. Which configuration must the engineer apply?
28.
An engineer is trying to implement a new IP phone system in a company. The phones connected to the internal network are reporting a status of "unknown." There is no firewall between the Cisco UCM and the phones. What is a possible reason for the "unknown" status?
29.
What describes the outcome when the trust boundary is defined at the Cisco IP phone?
31.
Which command is required to allow this media resource to handle Video Media streams?
32.
Refer to the exhibit. An aministrator must fix the SRV records to ensure that server1 .sample.com is contacted more than the other three servers. Which solution should the engineer apply to resolve this isue?
33.
What an advantage of using of the SIP OAuth mode in Cisco Jabber?
34.
Which two types of trunks can be used when configuring a hybrid Local Gateway for Cisco Webex Calling? (Choose two.)
35.
Which feature is enabled by Cisco Mobile and Remote Access?
36.
"Refer to the exhibit. Which codec is negotiated?
37.
Refer to the exhibit. An administrator is attempting to resolve a DTMF issue to a specific IVR and has supplied logs from the most recent issue. What is the cause and solution of the issue?
38.
What is set when using Cos to mark an Ethernet frame?
39.
On an SNMP-managed network, Cisco Unified Border Element can be the managed device and an agent. Which two elements are essential elements of Cisco Unified Border Element monitoring currently available via SNMP? (Choose two.)
40.
For which type of user are Mobile and Remote Access services designed?
41.
Which Cisco Unified Communications Manager feature is to determine the maximum bit rate for a call between two video endpoints?
42.
An engineer must configure Unity Connection to turn MWIs on or off when triggered by an event. Drag and drop the events from the left onto the corresponding MWI status categories on the right.
From the Messaging Inbox a user marks a listenedmessage as Unread.
A user saves a message.
A user deletes a new message without listening toit.
A user listens to one out of two messages.
提示
43.
What is a description of the DiffServ model used for implementing QoS?
44.
Which DHCP option must be set up for new phones to obtain the TFTP server IP address?
45.
Refer to the exhibit. There is a call flow between Phone A and Phone B. Phone B (holder) places Phone A (holdee) on hold.Which MRGL and Audio Source are played to Phone A?
46.
What is a QoS requirement for VolP calls?
47.
End users report bad video quality and voice choppiness on Cisco Collaboration endpoints. The engineer changed the device pool the users were in but did not correct the problem. Which action should be taken to troubleshoot this issue?
48.
Which issue can occur if QoS is not Deployed on a Cisco Collaboration architecture across the WAN?
49.
Which action s required for a firewall configuration on a Mobile and Remote Access through Cisco Expressway deployment?
50.
An engineer must configure a SIP integration between Cisco UCM and Cisco Unity Connection. These components are configured already:
- SIP trunk security profile
- SIP profile
- SIP trunk
Drag and drop the components from the left into the order they must be configured on the right.
Correct Answer:
route pattern
voice mail profile
voice mail pilot
voice mail server service parameters
Step 4
Step 3
Step 1
Step 2
提示
51.
Refer to the exhibit. A Cisco UCM user with directory number 4401 dials 5507, and the call is routed to a Cisco Unified Border Element. Which IP address will the call be sent to?
52.
An engineer is setting up a new voicemail server, and the requirements state that the integration for call control must be secure. During the configuration, the engineer wants to select "Next Generation Encryption". What is the prerequisite for using this option to ensure an encrypted SIP integration?
53.
Due to service provider restriction, Cisco UCM cannot send video in the SDP. Which two options on Cisco UCM are confiqured to suppress video in the SDP in outgoing invites? (Choose two.)
54.
A DTMF mismatch is occurring between an MGCP gateway registered FXS port and a Cisco Unified communications Manager SIP trunk. Which media resource can be leveraged to interwork this mismatch?
55.
An administrator would like to set several Cisco Jabber confíguration parameters to only apply to mobile clients (iOS and Android). How does the administrator accomplish this with Cisco Jabber 12.9 and Cisco UCM 12.5?
56.
Which statement about Cisco Unified Communications Manager and Cisco IM and Presence backups is true?
57.
An administrator is troubleshooting an issue where an 8845 is not joining the correct voice VLAN configuration from a switch and they believe that LLDP is the issue. Which command allows the administrator to see the packets sent from the phone to the switch?
58.
Cisco Prime Collaboration Manager is using Cisco Discovery Protocol to discover devices in an automated setup. What must be used to get alerts and faults via traps from the devices at regular polling intervals?
59.
Calls are being delivered to the end user in the globalized format. Where does an engineer configure the calling number into a localized format?
60.
Which two steps should be taken to provision a phone after the Self-Provisioning feature was configured for end users? (Choose two.)
61.
When a call is delivered to a gateway, the calling and called party number must be adapted to the PSTN service requirements of the trunk group. If a call is destined locally, the + sign and the explicit country code must be replaced with a national prefix. For the same city or region, the local area code must be replaced by a local prefix as applicable. Assuming that a Cisco UCM has a SIP trunk to a New York gateway (area code 917), which two combinations of solutions localize the calling and called party for a New York phone user? (Choose two.)
63.
By default, IP phones upgrade their images using the HTTP Service from the TFTP Server integrated into one or more of the call processing platforms. Which Port / Transport Protocol does this service use?
64.
An engineer configures a SIP trunk for MWI between a Cisco UCM cluster and Cisco Unity Connection The Cisco UCM cluster fails to receive the SIP notify messages. Which two SIP trunk settings resolve this issue? (Choose two.)
65.
Which filed id configured to change the caller ID information on a SIP route pattern?
66.
A customer has Cisco Unity Connection that is integrated with LDAP. As a unity connection administrator, you have received a request to change the first name for VM user. Where must the change be performed?
67.
An administrator has been asked to implement toll fraud prevention in Cisco UCM. Which tool is used to begin this process?
68.
An enaineer must manually register an analoq port with Cisco UCM usina the MGCP protocol. Which commands are required?
69.
Which DSCP value must be selected to mark video traffic between two Cisco 8845 phones?
70.
Refer to the exhibit. A call to an international number has failed. Which action corrects this problem?
71.
Which voice and video connectivity does Cisco Unified Border Element bridge in a VolP telephony environment?
72.
The CE router is peering with both PE routers and advertising a public prefix to the internet. Routing to and from this prefix will be asymmetric under certain network conditions, but packets must not be discarded. Which configuration must an engineer apply to the two PE routers so that they validate reverse packet forwarding for packets entering their Gi2 interfaces and drop traffic from the RFC1918 space?
73.
What will DiffServ provide?
74.
Users want their mobile phones to be able to access their Cisco Unity Connection mailboxes with only havina to enter their voicemail pin at the login prompt when calling the pilot number. Where should an engineer confiaure this feature?
75.
What is the purpose of bandwidth management when designing a Cisco collaboration solution?
76.
What is a Cisco Webex Calling location?
77.
What is an indicator of network congestion in VolP communications?
78.
After an engineer implements the FAC and CMC features together, users report that calls take almost one minute to complete and that they occasionally hear the reorder tone. Which two actions address this issue?(Choose two)
79.
Which protocol does prime collaboration Assurance use to poll the health status of different systems in the collaboration environment?
80.
An engineer is trying to add a new subscriber to the cluster of Cisco UCM, and the synchronization is failing. The engineer obtained the output from the publisher and noticed the error. Based on the output, what is the issue?
81.
According to the QoS Baseline Model, drag and drop the applications from the left onto the correct Per-Hop Behavior values on the right.
interactive video
bulk data
call-signaling
network management
voice
AF11
AF41
AF31/CS3
EF
CS2
82.
An administrator must confiaure the Local Route Group feature on Cisco UCM. Which step will enable this feature?
83.
A customer reports that the Cisco UCM toll-fraud prevention does not work correctly, and the customer is receiving charges for unapproved international calls as a result. Which two configuration changes resolve the issues? (Choose two.)
84.
There is a saturated link that has traffic shaping configured. How is incoming traffic processed?
85.
What is the primary role of a BR router in a 6rd environment?
86.
In an eleven-class queueing model following realtime, best effort, and scavenger queuing rules, what recommended percentage of bandwidth must be allocated for interactive video?
87.
Refer to the exhibit. An engineer configures a VolP dial peer on a Cisco gateway. Which codec is used?
88.
When a UC Administrator is troubleshooting DTMF negotiated by this SIP INVITE, which two messages should be examined next to further troubleshoot the issue? (Choose two.)
89.
What is an advantage of using Cisco Webex Control Hub?
90.
An engineer must configure DTMF relay on a Cisco Unified Border Element by using RFC2833 as the preferred relay mechanism and KPML as the next preferred relay mechanism. The engineer logs in to the CUBE and enters the dial-peer configuration level. Which command should be run at the dial-peer configuration level?
91.
You deploy Mobile and Remote Access for Jabber and discover that Jabber for Windows does not register to cisco Unified Communications Manager while outside of the office. What is a cause of this issue?
92.
What is a software-based media resource that is provided by the Cisco IP Voice Streaming Application?
93.
When Cisco Unified CM high availability is implemented, which two redundancy configurations are recommended for Call Processing Redundancy? (Choose two.)
94.
A collaboration engineer must configure Cisco Unified Border Element to support up to five concurrent outbound calls across an Ethernet Link with a bandwidth of 160 kb to the Internet Telephony service provider. Which set of commands allows the engineer to complete the task without compromising voice quality?
95.
Which traversal client must be deployed in an enterprise network when Mobile and Remote Access is configured?
96.
An engineer must configure a dial plan for a new Cisco UCM cluster. Standard local route groups must be used for all local calls. After the route pattern, route list, and route groups are configured, which settings must the engineer configure for the standard local route groups?
97.
Which information is needed to restore the backup of a Cisco UCM publisher successfully?
98.
What is the maximum length of digits for any phone number according to ITU recommendation E. 164?
99.
Refer to the exhibit. An administrator must replace the T1 card with an E1 card. What is the correct configuration if the administrator was asked to configure 12 time slots?
100.
An engineer must configure switch port 5/1 to send CDP packets to configure an attached Cisco IP phone to trust tagged traffic on it's access port. Which command is required to complete the configuration?
Router# configure terminal
Router(config) interface gigabitethernet 5/1
Router config-if)# description Cube E42.901-1868
101.
What is a function of a call handler in Cisco Unity Connection?
102.
Refer to the exhibit. Which route pattern can the Cisco UCM administrator apply to the configuration to allow calls to "1306, 1316, 1326, 13*6, 13#6" only?
103.
AN engineer configures a VoIP dial peer on a Cisco gateway. Which codec is used?
104.
Which element defines how much bandwidth to regulate for voice when implementing CAC in a centralized call processing system?
