350-801: Implementing Cisco Collaboration Core Technologies (CLCOR) Part 6
Question #: 301
Topic #: 1
During a conference call, the CTO of a company adds an external user to the call. The CTO leaves at the end of the call, but the external user stays on and dials out to a premium rate number. Several weeks later, the CTO receives an unexpectedly nigh phone bill. The CTO decides to implement an Ad Hoc conference restriction. Which parameters must be adjusted?
A. Drop Ad Hoc Conference
B. Limit Ad Hoc Conference
C. Restrict Ad Hoc Conference
D. Monitor Ad Hoc Conference
Selected Answer: A
Question #: 302
Topic #: 1
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
• SIP trunk configuration
• translation pattern configuration
Which action resolves the issue?
A. Apply voice translation-rule 3 to dial-peer 11 voip.
B. Change the destination pattern for dial-peer voice 10 to 2… $.
C. Apply voice translation-rule 3 to dial-peer 10 voip.
D. Replace voice translation-rule 3 with voice translation-rule 1.
Selected Answer: B
Question #: 303
Topic #: 1
How does an administrator ensure compliance with ITU-T G.114 latency requirements when deploying voice and video applications over routes that include a geostationary satellite?
A. For voice and video applications over satellite, Cisco recommends using WAN optimization compression, which will save space or time of the transmission. The latency will then be below the recommended latency threshold for voice.
B. Using G.729 voice codec Instead of G.711 voice codec will reduce the packet size and the latency to stay within the recommended threshold.
C. The satellite is 35,786 km (22,236 miles) above sea level (from the equator), so an engineer will not get below 150 ms latency in one direction and will need to manage the expectation of the user.
D. The application will work because it will be below the recommenced latency requirement If an engineer uses compressed headers to speed up the voice packets.
Selected Answer: C
Question #: 304
Topic #: 1
How does WRED prevent congestion?
A. It marks which packets to drop randomly.
B. It drops packets selectively based on the IP precedence value.
C. It marks which packets to drop based on how much traffic the client sent.
D. It drops packets that have a higher DSCP value last.
Selected Answer: B
Question #: 305
Topic #: 1
Which two media encryptions should be used when configuring SRTP between Cisco UCM and Cisco VCS Expressway? (Choose two.)
A. optional
B. pass-through
C. priority
D. mandatory
E. none
Selected Answer: DE
Question #: 306
Topic #: 1
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?
A. Use an external NTP server and allow communication on port 53.
B. Ensure that Cisco UCM can communicate with the NTP server on port 53 and have a Windows NTP server configured with NTPv3.
C. Configure the NTP server to answer requests on port 443.
D. Ensure that Cisco UCM can communicate with the NTP server on port 123 and have a Linux NTP server configured with NTPv4.
Selected Answer: D
Question #: 307
Topic #: 1
When designing location-based CAC, how much overprovisioning is calculated for video bandwidth?
A. 10%
B. 15%
C. 20%
D. 25%
Selected Answer: C
Question #: 308
Topic #: 1
Location-based call admission control is used in Cisco UCM to control the amount of bandwidth allowed between predefined locations. What must be considered when calculating the number of calls that can be made?
A. A limit of 900 kb is the total amount of bandwidth used for the sum of the media and signaling in the calls. The system allows for an actual of 20% overhead of IP packet headers. This is to compare the use of ISDN lines with no IP overhead.
B. A limit of 900 kb Is the total amount of bandwidth used for the sum of calls of the defined codec including headers and media traffic.
C. A limit of 900 kb is the total amount of bandwidth used for the sum of calls. The use of compression does not impact the amount of calls because only the codec definition is considered when calculating the CAC in Cisco UCM.
D. A limit of 900 kb is the total amount of actual used RTP traffic so the oversubscription can be done for multiple calls adding Its maximum RTP stream requirements.
Selected Answer: B
Question #: 309
Topic #: 1
What are two functions of a dial-plan? (Choose two.)
A. call recording
B. endpoint features
C. calling privileges
D. digit manipulation
E. ring cadence
Selected Answer: CD
Question #: 310
Topic #: 1
Which DSCP class selector is necessary to mark scavenger traffic?
A. AF21
B. CS1
C. AF11
D. CS2
Selected Answer: B
Question #: 311
Topic #: 1
How is bandwidth allocated to traffic flows in a flow-based WFQ solution?
A. Voice has priority and the other types of traffic share the remaining bandwidth.
B. All the bandwidth is divided based on the QoS marking of the packets.
C. Each type of traffic flow has equal bandwidth.
D. Bandwidth is divided among traffic flows. Voice has priority.
Selected Answer: C
Question #: 312
Topic #: 1
An engineer must configure switch port 2/8 to send CDP packets to configure an attached Cisco IP phone to trust tagged traffic on its access port. Which command is required to complete the configuration?
Router# configure terminal –
Router(config)# interface gigabitethernet 2/8
Router(config-if)# description Cube E43.308-6491
A. platform qos trust extend cos 3
B. platform qos extend trust
C. platform qos trust extend
D. platform qos trust extend cos 5
Selected Answer: C
Question #: 313
Topic #: 1
What are two characteristics of QoS Traffic shaping? (Choose two.)
A. When the traffic rate equals the configured maximum rate, excess traffic is remarked.
B. When the traffic rate equals the configured maximum rate, excess traffic is dropped.
C. Traffic shaping queues excess packets.
D. Traffic shaping can be applied to inbound traffic on an interface.
E. Traffic shaping can be applied to outbound traffic on an interface.
Selected Answer: CE
Question #: 314
Topic #: 1
Where in Cisco UCM is restrictions on audio bandwidth configured?
A. location
B. partition
C. region
D. serviceability
Selected Answer: A
Question #: 315
Topic #: 1
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?
A. voice class codec 10
B. voice-class codec 10
C. voice-class codec 10 early-offer
D. voice-class codec 10 offer-all
Selected Answer: D
Question #: 316
Topic #: 1
What is the importance of locations when using location-based CAC within Cisco UCM?
A. They define the geographic regions to which resources are assigned.
B. They define the maximum bandwidth of the codec that is used for a call.
C. They define the minimum bandwidth of the codec that is used for a call.
D. They define the amount of available bandwidth for the link.
Selected Answer: D
Question #: 317
Topic #: 1
What is the function of the Cisco Unity Connection Call Handler?
A. routes calls to a user based on caller input
B. searches a list of extensions until the call is answered
C. queues calls
D. allows customized scripts for IVR capabilities
Selected Answer: A
Question #: 318
Topic #: 1
What must be modified on the administration page in Cisco UCM when designing layered security?
A. phones that are on private VLANs
B. nonstandard TCP ports
C. phone auto-registration
D. access to the phone settings
Selected Answer: D
Question #: 319
Topic #: 1
What is the purpose of using an Expressway-C and Expressway-E pair in Cisco Collaboration Edge preferred architecture?
A. to provide internet connectivity and firewall traversal for voice and video
B. to block access to ports 5060 and 5061
C. to allow access on internal devices for management
D. to provide internet connectivity via PSTN router
Selected Answer: A
Question #: 320
Topic #: 1
The enterprise network is migrating to a global dial plan and running a few devices in the test phase. Which change is performed by the system to the information dialed when the Cisco UCM endpoint dials an external destination under a global dial plan?
A. The calling party is globalized using translation patterns
B. The normalization script modifies the calling party
C. The destination is transformed using site-specific route patterns
D. The destination is globalized using translation patterns to normalize the called party
Selected Answer: D
Question #: 321
Topic #: 1
Which Webex Calling construct is used to organize calling features within physical site?
A. client settings
B. service settings
C. locations
D. call routing
Selected Answer: C
Question #: 322
Topic #: 1
Which option must be used when configuring the Local Gateway for a Cisco Webex Calling trunk?
A. OAuth-based
B. mutual TLS
C. local authentication
D. certificate-based
Selected Answer: D
Question #: 323
Topic #: 1
What are two access management mechanisms in Cisco Webex Control Hub? (Choose two.)
A. attribute-based access control
B. multifactor authentication
C. single sign-on with Google
D. Client ID/Client Secret
E. Active Directory synchronization
Selected Answer: BE
Question #: 324
Topic #: 1
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?
A. The TTL value for the company.com domain is too short.
B. There is a missing SRV record entry for the company.com domain.
C. The company.com domain must be resolved only in Expressway-E.
D. There must be only one response for the company.com domain.
Selected Answer: B
Question #: 325
Topic #: 1
What an advantage of using of the SIP OAuth mode in Cisco Jabber?
A. usage of self-signed certificates
B. secure signaling and media
C. authentication of SIP messages
D. reduced authentication times
Selected Answer: D
Question #: 326
Topic #: 1
An engineer must enable onboarding of on-premises devices by using activation codes to a Cisco UCM server The engineer activated the Cisco Device Activation Service and set the default registration method to use the codes. Which action completes the configuration?
A. Generate 16-digit codes by using the Bulk Administration Tool.
B. Set the Enable Activation Code enterprise parameter to True.
C. Create a Bulk Administration Tool provisioning template.
D. Manually provision new phones that have an activation code requirement.
Selected Answer: D
Question #: 327
Topic #: 1
An engineer must deploy the Cisco Webex app to a Windows Virtual Desktop Infrastructure environment that has a roaming database named spark_roaming_store.db stored in a user’s AppData\Roaming directory. Which two command-line arguments must be used when running the installer? (Choose two.)
A. ALLUSERS=0
B. ENABLEVDI=1
C. ALLUSERS=1
D. ENABLEVDI=2
E. ROAMINGENABLED=1
Selected Answer: CE
Question #: 328
Topic #: 1
What is a capability of a Cisco IOS XE media resource?
A. It provides a hardware conferencing solution.
B. It provides a voice packet optimization solution.
C. It provides call forwarding capabilities.
D. It provides redundancy for voice calls.
Selected Answer: D
Question #: 329
Topic #: 1
What is the default TCP port for SIP OAuth made in Cisco UCM?
A. 9443
B. 5090
C. 3174
D. 5011
Selected Answer: B
Question #: 330
Topic #: 1
What is a capability of the call forwarding feature in a Cisco Webex dial plan?
A. It provides the ability to forward a Webex meeting to another user.
B. It forwards calls when a line is busy by enabling the call waiting feature.
C. It forwards calls to the voicemail of a mobile phone when there is no answer.
D. It chooses a tone to be played when forwarding all calls.
Selected Answer: D
Question #: 331
Topic #: 1
Which command enables SIP OAuth mode on a Cisco UCM publisher node?
A. utils sip-OAuth-mode enable
B. utils sipOAuth-mode enable
C. utils sip-OAuth-mode activate
D. utils sipOAuth-mode activate
Selected Answer: B
Question #: 332
Topic #: 1
An engineer must deploy the Cisco Webex app to a Virtual Desktop Infrastructure (VDI) environment and support full-featured meetings. Which action must the engineer take to meet these requirements?
A. Install three separate VDI plugins on the VDI thin client.
B. Install two separate VDI plugins on the VDI thin client.
C. Configure the VDI thin client and install the Webex app.
D. From Control Hub, configure VDI optimization for the Webex app.
Selected Answer: B
Question #: 333
Topic #: 1
Where is Directory Connector hosted in a Cisco Webex Hybrid Services deployment?
A. on an on-premises Microsoft Active Directory server
B. on a Cisco Expressway-C connector host server
C. on a server in the Webex Data Center
D. on a dedicated on-premises server
Selected Answer: D
Question #: 334
Topic #: 1
An engineer troubleshoots an outbound call failure on an ISDN-PRI circuit. The engineer is suspecting the error “Incompatible Destination”. Which debugs or commands are run in the voice gateway to troubleshoot the issue?
A. debug isdn q921
debug voip ccapi inout
B. debug voip ccapi inout
show controller t1
C. debug isdn q931
show isdn status
D. debug isdn q921
term mon
Selected Answer: C
Question #: 335
Topic #: 1
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?
A. dtmf-relay sip-kpml rtp-nte
B. dtmf-relay rtp-inband sip-kpml
C. dtmf-relay sip-kpml rtp-inband
D. dtmf-relay rtp-nte sip-kpml
Selected Answer: D
Question #: 336
Topic #: 1
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?
A. Allow HTTP traffic from each device to Control Hub.
B. Upgrade all the devices to software version CE9.15 or later.
C. Configure the Control Hub organization ID on the devices.
D. Acquire a license for each device.
Selected Answer: B
Question #: 337
Topic #: 1
What is a capability of the call forwarding feature in a Cisco Webex dial plan?
A. business continuity
B. Call Admission Control
C. device pool selection
D. ringtone selection
Selected Answer: A
Question #: 338
Topic #: 1
An engineer is deploying the Webex app on a Microsoft Windows computer that has multiple user accounts. Which CLI argument allows the engineer to install the application as a “per machine” installation?
A. INSTALL_ROOT
B. ALLUSERS
C. FORCELOCKDOWN
D. ACCEPT_EULA
Selected Answer: B
Question #: 339
Topic #: 1
An engineer is deploying the Webex app on Microsoft Windows computers. The engineer wants to ensure that the end users do not receive pop-up dialogues when they start the application. Which two actions ensure that the end users are not prompted to accept the end-user license agreement? (Choose two.)
A. Set the “/quiet” installation argument.
B. Set the “DEFAULT_THEME=”Dark”” installation argument.
C. Set the “DELETEUSERDATA=1” installation argument.
D. Set the “HKEY_LOCAL_MACHINE\Software\CiscoCollabHost\Eula Setting” registry key to “eula_disabled”.
E. Set the “HKEY_LOCAL_MACHINE\Software\WOW6432Node\CiscoCollabHost\Eula Setting” registry key to “eula_disabled”.
Selected Answer: DE
Question #: 340
Topic #: 1
Which Webex Calling dial plan settings restrict a user from placing a particular outbound call type?
A. Reject
B. Block
C. Restrict
D. Transfer to Number
Selected Answer: B
Question #: 341
Topic #: 1
An engineer configures a new phone in Cisco UCM. The phone boots and gels an IP address when it connects to the network, however the phone fails to register with Cisco UCM. The engineer observes that the phone has a status Rejected in Cisco UCM. What must be verified first when troubleshooting the issue?
A. whether auto-registration is enabled in Cisco UCM
B. whether the phone is in the correct VLAN
C. whether the Initial Trust List and Certificate Trust List files on the phone are correct
D. whether the phone’s MAC address is correct in Cisco UCM
Selected Answer: C
Question #: 342
Topic #: 1
An engineer must configure codec negotiation on a Cisco Unified Border Element to prefer the G.711 ulaw codec and use G.711 alaw codec as the next preferred. The engineer logs in to the CUBE, enters the dial-peer configuration level, and runs the voice-class codec 100 command. Which set of commands completes the configuration?
A.
B.
C.
D.
Selected Answer: D
Question #: 343
Topic #: 1
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.)
A. SIP proxies are SDP-aware and can change the SDP bodies.
B. SIP proxies add a Via header and optionally a Record-Route header, and the rest of the headers are left untouched.
C. SBCs can modify headers such as To, From, Contact, and Call-ID. It can introduce new headers into the SIP message.
D. Stateful proxies are context-aware and can terminate communication sessions by themselves.
E. SBCs are capable of interworking completely different protocols to set up, modify, and tear down communication sessions. It includes SIP, H.323, and MGCP protocols.
Selected Answer: CE
Question #: 344
Topic #: 1
An engineer configures Class-Based Weighted Fair Queuing, but must still configure Low Latency Queuing to prioritize voice audio traffic and guarantee 5 Mbps of bandwidth. Which Cisco IOS command must be run in the voice class map?
A. priority
B. priority 5
C. priority 5000
D. priority level 5
Selected Answer: C
Question #: 345
Topic #: 1
An engineer is configuring a PRI card on a Cisco ISR 4300 Series Router. When the engineer configures the voice PRI on the router, this error is received: “T1 0/1/0: No DSP resources to configure voice feature”. Which action must the engineer take to resolve the issue if a PVDM card was installed in the motherboard?
A. Install the NIM card on a different slot.
B. Replace the memory slot in the motherboard.
C. Replace the flashcard, restart the router, and try it again.
D. Install the PVDM directly to the NIM card.
Selected Answer: D
Question #: 346
Topic #: 1
What is used to create a QoS solution that delivers priority to voice and video traffic across a network?
A. CBWFQ
B. traffic shaping
C. DiffServ
D. traffic policing
Selected Answer: C
Question #: 347
Topic #: 1
Which data security feature is included with the Pro Pack for Cisco Webex Control Hub?
A. end-to-end encryption of content
B. encryption in transit
C. Hybrid Data Security
D. end-to-end encryption for meetings
Selected Answer: C
Question #: 348
Topic #: 1
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?
A. 6970 / UDP
B. 443 / TCP
C. 6970 / TCP
D. 8080 / TCP
Selected Answer: C
Question #: 349
Topic #: 1
An administrator troubleshoots a DNS issue with Cisco UCM and observes that the hostname resolution returns the wrong IP address. The DNS team informs the administrator that the A/AAA record was recently updated on the DNS server. Which action must be taken on Cisco UCM to reflect the correct entries?
A. Restart the DNS server to flush any stale entries
B. Flush the current cache using this CLI command: admin:utils network name-service hosts cache invalidate
C. Delete the arp entry of the host utils network arp delete
D. Flush the current cache using this CLI command: admin:utils network name-service hosts cache validate
Selected Answer: B
Question #: 350
Topic #: 1
An engineer has a Cisco UCM cluster on version 12.5(1). The engineer registered and configured a new Cisco IP phone 8851 to Cisco UCM and assigned it to a user. If the message on Cisco UCM says “Rejected,” this issue should be addressed by pressing the gear button on the phone and choosing administrator settings. What is the next step that the engineer must take to resolve the issue?
A. reset settings > reset device
B. reset settings > all settings
C. reset device > all settings
D. all settings > erase
Selected Answer: B
Question #: 351
Topic #: 1
Refer to the exhibit. An engineer must provide a list of codecs based on the media attribute of an SDP body snippet. Which codecs are included in the media attribute ordered by priority?
A. G.711ulaw, G.722, G.711alaw, and G.729
B. G.711alaw, G.711ulaw, G.729, and G.722
C. G.722, G.711alaw, G.729, and G.711ulaw
D. G.711ulaw, G.711alaw, G.722, and G.729
Selected Answer: D
Question #: 352
Topic #: 1
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 INVITE? (Choose two.)
A. G.729r8
B. isac
C. ilbc
D. G.711ulaw
E. G.7l1alaw
Selected Answer: CD
Question #: 353
Topic #: 1
If a trust boundary is placed on a Cisco IP phone, what occurs with the packets that come to the phone from a PC?
A. The phone sets/resets the CoS field to 3 for voice signaling and 5 for voice traffic.
B. The phone does not mark any packets, and the access switch sets up the CoS values.
C. The phone sets/resets the CoS field to 0; voice signaling is set to 3; and voice traffic is set to 5.
D. QoS is performed at the distribution layer, and packets are marked at this boundary.
Selected Answer: C
Question #: 354
Topic #: 1
The engineer must ensure that the new SIP phones always try to set up Early Offer calls and display Fully Qualified Domain Names in SIP URIs called or received. Where are these options configured?
A. Phone Device settings. Protocol Specific Information section
B. SIP Security Profile settings
C. Phone Device settings. Model Specific Information section
D. SIP Profile settings
Selected Answer: D
Question #: 355
Topic #: 1
SNMP notifications send traps immediately if the corresponding trap flags are enabled. Which two messages are Cisco UCM SNMP trap/inform messages? (Choose two.)
A. Media Resource Exhaustion
B. Quality Report
C. Route List Availability
D. TLS Connection Failure
E. Gateway Layer 3 Change
Selected Answer: AB
Question #: 356
Topic #: 1
What does Cisco Jabber require before SIP OAuth mode can be enabled?
A. client Locally Significant Certificate
B. activation code
C. JSON Web Token
D. self-contained token
Selected Answer: C
Question #: 357
Topic #: 1
Which action is needed to configure ReadOnly SNMPv3 on a Cisco UCM cluster?
A. Define an SNMP user with ReadOnly access privilege on the publisher node only.
B. Define an SNMP community string with ReadOnly access privilege on all nodes in the cluster.
C. Define an SNMP user with ReadOnly access privilege and apply to all nodes in cluster.
D. Define an SNMP community string with ReadOnly access privilege on the publisher node only.
Selected Answer: C
Question #: 358
Topic #: 1
What should be used to detect common issues on a Cisco IOS XE-based Local Gateway and generate an email?
A. diagnostic signatures
B. SNMP
C. Real-Time Monitoring Tool
D. syslog
Selected Answer: A
Question #: 359
Topic #: 1
An engineer must deploy the Cisco Webex app to a Windows Virtual Desktop Infrastructure environment by using these settings:
• Thin client plugin: Not installed
• Call service-enabled user: Media is not optimized
• Calls on Webex app: Media is not optimized
Which command-line argument must be run when running the installer?
A. ENABLEVDI=2
B. ENABLEVDI=0
C. ALLUSERS=0
D. ENABLEVDI=1
Selected Answer: B
Question #: 360
Topic #: 1
What is the purpose of configuring locations in a Cisco Webex dial plan?
A. to identify the location of Webex data centers
B. to restrict access to international calling capabilities
C. to restrict access to long distance calling capabilities
D. to organize calling features within the same physical location
Selected Answer: D
