350-801 CLCOR:Implementing and Operating Cisco Collaboration Core Technologies
Update：November 11, 2025
Questions and Answers: 595 Q&A
1.
An administrator is trying to change the default LINECODE for a voice ISDN T1 PRI. Which command makes this change?
2.
An administrator must make a pattern to route calls to two different destinations: john.doe@company.com and jane.doe@company.com. Which type of patterns are needed in the Cisco UCM, and what must the pattern look like?
3.
Why is an end user's PC device not included in a QoS trust boundary?
4.
Which two steps are required for bulk configuration transactions on the Cisco UCM database utilizing BAT? (Choose two)
5.
After an engineer runs the utils ntp status command on the Cisco Unified Communications Manager publisher, the stratum value is 16. Which issue can the Cisco Unified CM cluster experience?
6.
A Cisco Unity Connection Administrator must set a voice mailbox so that is can be accessed form a secondary device. Which configuration on the voice mailbox makes this change?
7.
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.)
8.
Refer to the exhibit. How must the +E.164 translation pattern be configured to reach international number 49XXXXXXX?
9.
Which two DNS records must be created to configure Service Discovery for on-premises Jabber? (Choose two.)
10.
Which issue can occur if QoS is not Deployed on a Cisco Collaboration architecture across the WAN?
11.
Refer to the exhibit. An engineer is troubleshooting why PSTN phones are not receiving the caller's name when called from a remote Cisco UCM site. An ISDN PRI connection is being used to reach the PSTN What must the administrator select to resolve the issue?
12.
An engineer is integrating Unity Connection with Cisco UCM. Which two actions must be configured so that recording and playback from the IP phones works at all times, including peak traffic hours? (Choose two.)
13.
The engineering team wants to limit control traffic on router RX with the following IP address assignments:
- Accepted traffic for router: 10.0.0.0/24
- NOC users IP allocation: 192.168.10.0/24
Which additional configuration must be applied to RX to apply the policy for MSDP?
14.
What is the correct statement about CUCM and Cisco IM&P backups?
15.
A company’s employees have been complaining that they have been unable to select options on the UCCE internal IVR of the help desk. IT support has been given Cisco UCM traces and below is the snippet of the SDP of the INVITE packet.
m=audio 25268 RTP/AVP 18 101
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=ptime:20
a=ftp:18 annexb=no
a=rtpmap: 101 telephone-event/8000
a= ftp:1010-15
How is this issue resolved?
16.
Calls are being delivered to the end user in the globalized format. Where does an engineer configure the calling number into a localized format?
17.
Refer to the exhibit. An engineer configures a VolP dial peer on a Cisco gateway. Which codec is used?
18.
Refer to the exhibit. An administrator confiqures fax dial-peers on a Cisco IOS gateway and finds that faxes are not working correctly. Which change should be made to resolve this issue?
19.
Which field is confiqured to change the caller ID information on a SIP route pattern?
20.
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?
21.
What are two common attributes of XMPP XML stanzas? (Choose two.)
22.
Which DHCP option must be set up for new phones to obtain the TFTP server IP address?
23.
What is the purpose of configuring outgoing call permissions in a Cisco Webex dial plan?
24.
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?
25.
An engineer configures a Cisco Unified Border Element and must ensure that the codecs negotiated meet the ITSP requirements.The ITSP supports G.711ulaw and G.729 for audio and H.264 for video. The preferred voice codec is G.711. Which configuration meets this requirement?
26.
What is the function of DiffServ?
27.
An engineer must configure a DHCP server to save automatic bindings on a remote host that has an IP address of 172.16.1.1. The IP address range of 172.16.1.100 to 172.16.1.108 must be blocked from the DHCP server. Which set of commands must the engineer run?
28.
You are adding regions in Cisco Unified Communications Manager. Which codec(s) are selected when a call is placed if you set up the max audio bit rate to use 8 kbps?
29.
A network engineer must update the routing toward the web server with IP address 35.22.13.1.The primary path must be configured via the neighbor router with ID 1.1.1.1. However, local-preference configuration is not permitted on R1. Which task must the engineer perform on R1 to complete the implementation?
30.
What are two differences between media flow-around and media flow-through on Cisco Unified Border Element? (Choose two.)
31.
What are two key features of the Expressway series? (Choose two.)
32.
Which Cisco UCM configuration is required for SIP MWI integrations?
33.
What is the maximum one-way latency and jitter for voice before quality issues arise?
35.
Which task is required when configuring self-provisioning for an end user in Cisco UCM?
36.
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?
37.
Which action is needed to configure ReadOnly SNMPv3 on a Cisco UCM cluster?
38.
Refer to the exhibit. A company recently deployed Cisco Jabber. Users log in to Jabber by using their email address in a domain named company.com. The users report that they cannot register their Jabber telephony services when working from home unless they use a VPN. An engineer runs the DNS lookup tool in Cisco Expressway-C to troubleshoot the issue. What is the cause of the issue?
39.
What is a QoS requirement for VoIP calls？
40.
An engineer configures local route group names to simplify a dial plan. Where does the engineer set the route group according to the local route group names that are configured?
42.
Which feature is enabled by Cisco Mobile and Remote Access?
43.
An engineer is setting up a system with voice and video endpoints using auto-QoS policy on the switches. Which DSCP values are expected for interactive voice and video?
44.
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?
45.
Which two protocols should be configured for the cisco unity connection and cisco UCM integration?
46.
A user forwards a corporate number to an international number. What are two methods to prevent this forwarded call? (Choose two.)
47.
What is a capability of a Cisco IOS XE media resource?
48.
What is a Cisco Webex Calling location?
49.
What is a statement about shadow locations in Cisco UCM?
50.
Refer to exhibit. A collaboration engineer needs to replace the original, single NTP server that was configured during the initial install of a Cisco UCM server. What is the first step to accomplish this task?
51.
An incoming off-net call to a user fails. An engineer notices that the off-net call is G.711, but the phone accepts only G.729. Which media resource on a Cisco Unified Border Element and Cisco Unified Communications Manager must the engineer configure to Manage the engineer configure to manage the codec negotiation?
52.
What should be used to detect common issues on a Cisco IOS XE based Local Gateway and generate an email?
53.
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?
54.
The chief technology officer at a company must reduce collaboration infrastructure costs by onboarding all on-premises equipment to the cloud by using Cisco Webex Control Hub. Administrators need the ability to manage upgrades and set up hot desking for on-premises devices. Which action must be taken before onboarding devices by using the Control Hub?
55.
Refer to the exhibit. Users at a company located in New York cannot place calls. The New York gateway is configured with a T1 ISDN PRI card with 24 channels. The engineer runs the show isdn status command and receives output. Which action must the engineer take to resolve the issue?
56.
Which data security feature is included with the Pro Pack for Cisco Webex Control Hub?
57.
Which configuration step is necessary for a Cisco SIP phone to synchronize its time with a specific source?
58.
An engineer must manually register an analog por t with cisco UCM using the MGCP protocol. Which commands are required?
59.
Which voice and video connectivity does Cisco Unified Border Element bridge in a VolP telephony environment?
60.
Refer to the exhibit. CUBE_1 and CUBE_2 must use the G.729r8 codec when communicating. Which action completes the configuration?
61.
Refer to the exhibit. Which trouoleshooting step must be performed to investigate the issue?
62.
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?
63.
Which two features of Cisco Prime Collaboration Assurance require advanced licensing? (Choose two.)
64.
When a phone is registered over Mobile and Remote Access, where does it register?
65.
An administrator must manipulate a number when a specific criterion is met. If this happens, the administrator wants to route the call again based on the new information to send the call to the correct destination. How must the administrator archive this function in the Cisco UCM?
67.
An organization is deploying a Cisco Unified Border Element for Webex calling. The engineer's voice gateway is a Cisco CSR1000v on version 17.x.x. How must the engineer configure G.729 codec to be the first priority for all calls, followed by G.711ulaw and G.711alaw?
68.
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?
69.
Which service must be enabled when LDAP on Cisco UCM is used?
70.
An engineer configures local roule group names to simplify a dial plan. Where does the engineer set the route groups according to the local route group names that are configured?
71.
In an enhanced location configuration, an administrator allocates 512 kpbs to the link between two sites. How many G.711 calls are allowed over the link?
72.
Which SNMP service must be activated manually on the Cisco UCM after installation?
73.
CAR is an example of which technique?
74.
A user reports that when receiving an inbound call on their IP Phone from the PSTN they are unable to transfer this call to another PSTN number. What is the reason for this failure?
75.
What is the major difference between the two possible Cisco IM and presence high-availability modes?
76.
An engineer must manually provision a Cisco IP Phone 8845 using SIP. Which two fields must be configured for a successful provision? (Choose two.)
77.
Which DiffServ marking is the most likely to drop packets?
78.
Refer to the exhibit. When a call is received on Cisco Unified Border Element, from which IP does it allow a connection?
79.
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?
80.
A customer enters no IP domain lookup on the Cisco IOS XE gateway to suppress the interpreting of invalid commands as hostnames. Which two commands are needed to restore DNS SRV or A record resolutions? (Choose two.)
81.
On a Cisco Catalyst Switch, which command is required to send CDP packets on a switch port that configures a Cisco IP phone to transmit voice traffic in 802.1Q frames, tagged with the voice VLAN ID 221?
82.
A company hosts a conference call with no local users. How does the administrator stop the conference from continuing?
83.
What Is the purpose of a Workspace In Cisco Webex Control Hub?
84.
which Cisco unity Connection handler plays a greeting at announces the option to dial a user extension by default?
85.
An engineer is configuring a BOT device for a Jabber user in Cisco Unified Communication Manager. Which phone type must be selected?
86.
What is a characteristic of video traffic that governs QoS requirements for video?
87.
This INVITE is sent to an endpoint that only supports G.729. What must be done for this call to succeed?
88.
Which issue cause slips on a PRI？
89.
An engineer must configure a new Cisco UCM translation pattern to convert 915555555555 into 1665. Which translation pattern must be used?
90.
When designing location-based CAC, how much overprovisioning is calculated for video bandwidth?
91.
All calls that involve external parties must be based on a format to simplify the International multisite dial plans when globalized call routing is used. Which standard must be fllowved to implement normalized call routing?
92.
Which behavior occurs when Cisco UCM has a CallManager group that consists of two subscribers?
93.
Refer to exhibit. An engineer configured a codec preference list on a Cisco Unified Border Element. Which command is required on the dial peer to ensure that all codecs are offered during an early offer call?
94.
Refer to the exhibit. A call from+1 613 555 1234 that is sent out through the Nice Gateways should result in a calling party of 001 613 555 1234 with numbering type “international”. Which configuration accomplishes this goal?
95.
Refer to the exhibit. A user takes a phone from San Francisco to New York for a short reassianment. The phone was set up to use the San Francisco device pool. and device mobility is enabled on the Cisco UCM The user makes a call that matches a route pattern in a route list that contains the Standard Local Route Group. To where does the call retreat?
96.
Endpoint A is attempting to call endpoint B. Endpoint A only supports G.711ulaw with a packetization rate of 20 ms, and endpoint B supports packetization rate of 30 ms for G.711ulaw. Which two media are resources are allocated to normalize packetization rates through transrating?
97.
What is a capability of configuring the Incoming call permissions in a Cisco Webex dial plan?
98.
A user reports transfer failures from an IP phone for calls received from a PSTN to another PSTN number. What is a reason for these failures?
99.
What is the maximum allowed round-trip time between standard Cisco UCM nodes?
100.
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?
101.
Where is the hybrid local gateway for cloud calling deployed?
102.
Which two protocols does Cisco IM and Presence use to authenticate Jabber? (Choose two.)
103.
AN administrator needs to help remote employee make a free call to an international destination. The administrator calls the employee, then conferences in the international party. The administrator drops the call, and the employee and the international party continue their conversation. Which action prevents this type of toll fraud in the Cisco USM?
104.
Refer to the exhibit. A customer wants the SIP 200 OK shown to advertise codecs in the following order: G729 G.711u G.711a G. 723 . G.728 After correcting the codec preferences, what should the audio payload show in the SIP Traces?
