Cisco 350-801 Online Practice Questions and Exam Preparation

Cisco 350-801 Online Questions & Answers

• Question 171:

  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.
  D. Ensure that Cisco UCM can communicate with the NTP server on port 123 and have a Linux NTP server configured with NTPv4.

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  Explanation

  References:

  https://www.cisco.com/c/en/us/support/docs/unified-communications/unified-communications-manager-callmanager/215537-network-time-protocol-ntp-on-cucm.html

• Question 172:

  What describes the outcome when the trust boundary is defined at the Cisco IP phone?

  A. Packets or Ethernet frames are remarked at the access layer switch.
  B. Packets or Ethernet frames are not remarked by the IP phone.
  C. Packets or Ethernet frames are not remarked at the access layer switch.
  D. Packets or Ethernet frames are remarked at the distribution layer switch.
  C. Packets or Ethernet frames are not remarked at the access layer switch.

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  Explanation

  References:

  https://networklessons.com/quality-of-service/how-to-configure-qos-trust-boundary-on-cisco-switches

• Question 173:

  What will DiffServ provide?

  A. scheduling technique
  B. traffic classification
  C. queuing mechanism
  D. service differentiation
  B. traffic classification

• Question 174:

  Which set of QoS commands must be configured on an interface of a catalyst switch so the ingress traffic can be trusted for a desk phone?

  A. Switch(config)# interface gigabitethernet2/0/1 Switch(config-if)# qos trust device desk-phone
  B. Switch(config)# interface gigabitethernet2/0/1 Switch(config-if)# qos mis trust device cisco-phone
  C. Switch(config)# interface gigabitethernet2/0/1 Switch(config-if)# mis trust qos device desk-phone
  D. Switch(config)# interface gigabitethernet2/0/1 Switch(config-if)# mis qos trust device cisco-phone
  D. Switch(config)# interface gigabitethernet2/0/1 Switch(config-if)# mis qos trust device cisco-phone

• Question 175:

  An engineer needs to confirm that a secure call is encrypting the media stream rather than only protecting signaling.

  Which technology should the engineer verify?

  A. TLS
  B. SRTP
  C. NTP
  D. LDAP
  B. SRTP

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  Explanation

  SRTP is correct because it secures RTP media streams, which is exactly the media-encryption requirement in the question. TLS secures signaling sessions, while NTP and LDAP serve time synchronization and directory functions.

• Question 176:

  Which program is required to deploy the Cisco Jabber client on an on-premises Cisco collaboration solution?

  A. Cisco Unity Connection
  B. Cisco Expressway-C
  C. Cisco UCM
  D. Cisco UCM IM and Presence
  C. Cisco UCM

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  Explanation

  References:

  https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/jabber/14_0/cjab_b_deploy-jabber-on-premises-14_0/cjab_b_deploy-jabber-on-premises-129_chapter_010000.html

• Question 177:

  Where is the QoS trust boundary typically established in a LAN-based Cisco collaboration design?

  A. At the access layer where traffic first enters the managed network
  B. At the WAN edge only
  C. On the voicemail server
  D. On the Unity Connection mailbox store
  A. At the access layer where traffic first enters the managed network

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  Explanation

  The access layer is correct because trust boundaries are established where traffic first enters the managed LAN so that classification and marking can be controlled early. The WAN edge may remark or preserve traffic later, but it is not the typical initial trust boundary, and the other options are not network trust-boundary locations.

• Question 178:

  Calls are being delivered to the end user in the globalized format.

  Where does an engineer configure the calling number into a localized format?

  A. route pattern
  B. service parameters
  C. IP phone
  D. gateway
  C. IP phone

• Question 179:

  An engineer is going to redesign a network, and while looking at the QoS con guration, the engineer sees that a portion of the network is marked with AF42.

  Which type of traffic is marked with this tag?

  A. voice
  B. streaming video
  C. signaling
  D. video conference
  D. video conference

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  Explanation

  References:

  https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Collaboration/hybrid/12x/hybcvd/bwm.html

• Question 180:

  An administrator uses the Cisco Unified Real-Time Monitoring Tool to investigate recent calls on a Cisco UCM cluster. The SIP trace for an on-net, direct-media call shows two 180 Ringing and two 11 BYE messages.

  Why are there multiples of each message type in the trace?

  A. The source phone sends a 180 Ringing signal to the Cisco UCM, which sends a 180 Ringing signal to the destination phone. The same process applies to 11 BYE messages.
  B. The source phone must signal to the destination phone that it is ringing, and the destination phone signals back with a 180 Ringing message. The same process applies to 11 BYE messages.
  C. The destination phone signals back to the Cisco UCM that it is ringing, and the Cisco UCM signals back to the source phone.
  D. The calls have an MTP in the call path due to different codec support. The calls are subsequently split into two call legs.
  C. The destination phone signals back to the Cisco UCM that it is ringing, and the Cisco UCM signals back to the source phone.