350-801 CLCOR:Implementing and Operating Cisco Collaboration Core Technologies
Update：2026年5月8日
Questions and Answers: 595 Q&A
1.
This INVITE is sent to an endpoint that only supports G.729. What must be done for this call to succeed?
2.
An engineer implements QoS in the enterprise network. Which command is used to verify the classification and marking on a Cisco IOS switch?
3.
Which two configurations are needed for Cisco UCM location-based CAC? (Choose two.)
4.
Why does Cisco UCM use DNS?
5.
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?
6.
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?
7.
An engineer is designing a load balancing solution for two Cisco Unified Border routers. The first router (cube1.abc.com) takes 60% of the calls and the second router (cute2.abc.com) takes 40% of the calls, Assume all DNS A records have been created. Which two SRV records are needed for a load balanced solution? (Choose two.)
8.
Which version is used to provide encryption for SNMP management traffic in collaboration deployments?
9.
An administrator configures the voicemail feature in a Cisco collaboration deployment. The user mailboxes must be configured when the Cisco Unity Connection server is configured. Which action accomplishes this task?
10.
Which two recommendations are made to optimize Cisco UCM confiauration to reduce the number of toll fraud incidents in an organization? (Choosetwo.)
11.
What are two features of 6RD IPv6 transition mechanism? (Choose two.)
12.
A Cisco voice gateway is configured to use a sip-kpml DTMF relay in global settings. A new SIP dial peer is configured for a third-party application that only supports an in-band DTMF relay. Which command must an engineer run on the dial peer?
13.
How does an administrator make Cisco IP phone display the last 10 digits of the calling number when the call is in the connected state, and also display the calling number in the E.164 format within call history on the phone?
14.
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?
15.
SIP proxies have operations defined in RFC 3261 and supporting extensions. Though no IETF RFC completely defines how SBCs must function, SBCs evolved over the years. Which two operations demonstrate the high-level differences between SBCs and SIP proxies? (Choose two.)
16.
What is the purpose of configuring locations in a Cisco Webex dial plan?
17.
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?
18.
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?
19.
In which location does an administrator look to determine which subscriber the phone registers to if it loses registration with the current Cisco UCM subscriber?
20.
Refer to the exhibit. An engineer must implement toll fraud prevention on a Cisco UCM cluster by allowing only the indicated IP address and protocols through Cisco Unified Border Element. What must be configured?
21.
What are two characteristics of numbers in webex Calling? (Choose two.)
22.
. An engineering team must update the network configuration so that data traffic from router A to router D continues in case of a network outage between routers B and C. During a recent outage on the B-C link, the IGP traffic path was switched to the alternate path via routers E and F. but label forwarding did not occur on the new path. Which action ensures that traffic on the end-to-end path continues?
23.
When a new SIP phone is registered to Cisco Unified communications Manager, it keeps failing and showing an “unprovisioned” error message in the phone display. Which problem is a possible cause of this issue?
24.
Which type of dial plan implements destinations by using a format that is similar to email addresses?
25.
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:
voice mail profile
voice mail server service parameters
route pattern
voice mail pilot
Step 2
Step 1
Step 4
Step 3
提示
26.
Refer to the exhibit. CUBE_1 and CUBE_2 must use the G.729r8 codec when communicating. Which action completes the configuration?
27.
An administrator must configure several audio codecs for optimal bandwidth utilization in a large Cisco UCM solution that includes a gateway to ensure audio quality without call failures. Where must a list of codecs be configured?
28.
After an engineer runs the ntils ntp status command on the Cisco Unified Communications manager publisher, the stratum value is 16.Which issue can the cisco Unified CM cluster experience?
29.
What will DiffServ provide?
30.
What describes the outcome when the trust boundary is defined at the Cisco IP phone?
31.
Refer to the exhibit An engineer must implement toll fraud prevention on a Cisco UCM cluster. Only the SIP protocol must be allowed for connections passing through Cisco Unified Border Element What must be configured?
32.
Which datastore and protocol is used for saving back-up files within the Disaster Recovery System of Cisco UCM?
33.
A user forwards a corporate number to an international number. What are two methods to prevent this forwarded call? (Choose two.)
34.
What is the maximum one-way packet loss and jitter for voice before quality issues arise?
35.
Which two DNS records must be created to configure Service Discovery for on-premises Jabber? (Choose two.)
36.
An engineer is configuring a BOT device for a Jabber user in Cisco Unified Communication Manager. Which phone type must be selected?
37.
An administrator is configuring LDAP for Cisco UCM with Active Directory integration. A customer has requested to use "ipphone" instead of telephoneNumber" as the phone number attribute. Where does the administrator specify this attribute mapping in Cisco UCM?
38.
What is a capability of the call forwarding feature in a Cisco Webex dial plan?
39.
Which two steps should be taken to provision a phone after the Self-Provisioning feature was configured for end users? (Choose two.)
40.
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?
41.
An engineer must configure a Cisco ISR 4000 as an MGCP gateway to download its MGCP-specific configuration from Cisco UCM. Which Cisco IOS configuration snippet accomplishes this task?
42.
What is the purpose of the Claim users to your organization feature in Cisco Webex Control Hub?
43.
A customer wants a video conference with five Cisco TelePresence IX5000 series system. Which media resource is necessary in the design to fully utilize the immersive functions?
44.
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
45.
Which command is used in a Cisco IOS XE TDM gateway to configure the voice T1/E1 controller to provide clocking?
46.
Refer to the exhibit. An INVITE with the SDP in the exhibit is received. Based on the configuration, which two codecs will be in the SDP of the outbound INIVTE? (Choose two.)
47.
Configuration of DNS is required to achieve a fully functional Cisco UCM system. Cisco UCM uses DNS to resolve fully qualified domain names to IP addresses for which destinations?
49.
A company has security policies that prevent direct internet access from the publisher node of the Cisco UCM cluster. How must the licenses be activated for the Cisco UCM cluster?
50.
Which action enables Cisco MRA?
51.
Which program is required to deploy the Cisco Jabber client on an on-premises Cisco collaboration solution?
52.
Which layer is the optimal trust boundary for an untrusted Cisco endpoint?
53.
When a remote office location is set up with limited bandwidth resources, which codec would allow the most voice calls with the limited bandwidth?
54.
How many total bits of the ToS byte are available for the DSCP value of an IP packet?
55.
How does WRED prevent congestion?
56.
If a trust boundary is placed on a Cisco IP phone, what occurs with the packets that come to the phone from a PC?
57.
Which issue can occur if QoS is not Deployed on a Cisco Collaboration architecture across the WAN?
58.
SNMP notifications send traps immediately if the corresponding trap flags are enabled. Which two messages are Cisco UCM SNMP trap/inform messages? (Choose two.)
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 protocols can be confiqured for the Cisco Unity Connection and Cisco UCM integration? (Choose two.)
61.
An engineer must configure a new Cisco UCM translation pattern to convert 915555555555 into 1665. Which translation pattern must be used?
62.
When setting a new primary DNS server in the Cisco UCM CLI, what is required for the change to take effect?
63.
Which action must an administrator take to provide a method that plays prerecorded messages when setting up a voicemail server in a Cisco collaboration on-premises system?
64.
Refer to the exhibit. An administrator deploys Mobile and Remote Access for Jabber and discovers that Jabber for Windows does not register to Cisco UCM while outside of the office. What is a cause of this issue?
65.
An engineer configures Cisco UCM to use a second PSTN provider and ensures that the called party information that is sent matches what the provider expects. However, the engineer already configured the gateway, created the route group,and added the route group to the existing route list. Which action ensures the called party information requirement without affecting the existing PSTN provider?
66.
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?
67.
Refer to the exhibit. An engineer is troubleshooting an NTP synchronization issue that returns amessage of unsynchronized" when the utils ntp status command is run on the Cisco UCM subscriber node. The connectivity between the subscriber and the NTP server was verified as working, and the NTP server is running. Which action resolves the issue?
68.
What is the function of DiffServ?
69.
ISP A provides VPLS services and DDoS protection to Company XYZ to connect their branches across the North America and Europe regions. The uplink from the data center to the ISP is Mbps. The company XYZ security team asked the ISP to redirect ICMP requests which are currently going to the web server to a new local security appliance which configuration must an ISPP engineer apply to router R2 to redirect the ICMP traffic?
70.
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.)
71.
An administrator works with an ISDN PRI that is connected to a third-party PBX. The ISDN link does not come up, and the administrator finds that the third-party PBX uses QSIG signaling method. Which command enable the Cisco IOS Gateway to use QSIG signaling on the ISDN link?
72.
An engineer must manually register an analog por t with cisco UCM using the MGCP protocol. Which commands are required?
73.
Which action s required for a firewall configuration on a Mobile and Remote Access through Cisco Expressway deployment?
74.
What is a capability of a DNS server?
75.
A high-speed network is often configured with a five-class QoS model. Which classes are used in the model?
76.
Which two describe the main components of the methodology for system sizing adopted by Cisco? (Choose two.)
77.
What is the purpose of configuring outgoing call permissions in a Cisco Webex dial plan?
78.
What are two features of stateful NAT64?
79.
Refer to the exhibit. A collaboration engineer adds an analog gateway to a Cisco UCM cluster. The engineer chooses MGCP over SCCP as the gateway protocol. Which two actions ensure that the gateway registers? (Choose two.)
80.
The security department will audit an IT department to ensure that the proper guidelines are being followed. The reports of the call detail records show unauthorized access to PSTN. Which two actions should an administrator check to prevent the unauthorized use of the telephony system?
82.
An administrator needs to create a partial PRI consisting of the first seven timeslots available. Which configuration snippet configures the ISDN E1 PRI for this task?
83.
Where would an administrator update learned patterns from the DNA UI?
84.
The engineering team wants to limit control traffic on router RX with the following IP address assignments:
85.
Refer to the exhibit. An engineer deploys this Cisco Unified Border Element configuration, but the phone at extension 2221 fails to ring. These configurations were performed already in Cisco UCM: phone configuration and registration•SIPtrunk configuration•translation pattern configuration Which action resolves the issue?
86.
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.)
87.
An end used at a remote site is trying initiate an ad hoc conference call to an end user at the main site the conference bridge is configured to support G.711 remote user phone only support G.729 the remote end user receives an error message on the phone “cannot complete conference call what is the cause of the issue?
88.
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?
89.
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?
90.
Which Cisco Unified Communications Manager feature is to determine the maximum bit rate for a call between two video endpoints?
91.
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?
92.
An engineer must generate a new Certificate Signing Request for Cisco Tomcat in Cisco UCM. Drag and drop the configuration steps from the left into the correct order on the right.
Select Download CSR,and then set CertificatePurpose to tomcat
Click Download,and then send the CSR to theCertificate Authority
From Cisco Unified Operating System Administration,select Security,select Certificate Management,and thenverify the expiration date of the Tomcat certificate
Select Generate CSR,set Certificate Purpose totomcat,and then click Generate
Step 3
Step2
Step 4
Step 1
提示
93.
After an administrator installs the Cisco Jabber client, it fails to reaister with the Cisco UCM server. Which two actions should be taken to troubleshoot this problem? (Choose two)
94.
Which design consideration does an administrator remember when preparing a proper network for wireless voice trffic?
95.
What is a possible cause of the PRI issue
96.
What makes Cisco Unified Border Element a better choice than a conventional Session Border Controller?
97.
An administrator needs to strip the leading 9 from outbound calls on an IOS Voice Gateway, and ensure that the system handles 911 emergency calls. Which confiquration is needed to accomplish this task?
98.
Regarding SIP integrations with Cisco Unified Communications Manager, if the Cisco Unity Connection is configured to listen for incoming IPv4 and IPv6 traffic, how should the addressing mode be set up in the Cisco Unity Connection?
99.
Which two protocols are proxied over an Expressway-E/C pair when a Mobile and Remote Access login including phone services is performed? (Choose two.)
100.
Using a single video queue for QoS, what is the recommended DSCP value for Jabber video endpoints?
101.
Which entity does Cisco UCM use DNS to resolve fully qualified domain names to an IP address?
102.
What Is the purpose of a Workspace In Cisco Webex Control Hub?
103.
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?
104.
A collaboration engineer is configuring the QoS trust boundary for Cisco UCM voice and video conferencing. Which two trust boundary configurations are valid? (Choose two.)
