Mar 26, 2023 Updated 100-890 Dumps Questions For Cisco Exam
Best Value Available Preparation Guide for 100-890 Exam
NEW QUESTION 20
Which two features are provided by the Cisco Unified Communications Manager signaling and device control function? (Choose two )
- A. phone book service
- B. transmission of audio/video media between endpoints
- C. call tear-down
- D. call setup
- E. quick dialing
Answer: C,D
Explanation:
Explanation
* Signaling and device control: CUCM sets up all the signaling connections between call endpoints and directs devices such as phones, gateways, and conference bridges to establish and tear down streaming connections. Signaling is also referred to as call control and call setup/call teardown.
https://www.ciscopress.com/articles/article.asp?p=1216890&seqNum=2
NEW QUESTION 21
Which two signaling protocols does Cisco Unified Communication Manager support for the Cisco IP phones?
(Choose two)
- A. RTP
- B. SCCP
- C. H.323
- D. SIP
- E. MGCP
Answer: C,D
NEW QUESTION 22
Which distributed database allows hostnames lo be mapped to IP addresses?
- A. Cisco Discovery Protocol
- B. Domain Name System (DNS)
- C. Network Time Protocol (NTP)
- D. Dynamic Host Configuration Protocol (DHCP)
Answer: B
Explanation:
Explanation
https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/software/release/12-2_55_se/configura
NEW QUESTION 23
What is based on the Bootstrap Protocol (BOOTP) and provides the framework for passing configuration information to hosts on a TCP/IP network?
- A. Dynamic Host Configuration Protocol (DHCP)
- B. Cisco Discovery Protocol
- C. Domain Name System (DNS)
- D. Network Time Protocol (NTP)
Answer: A
Explanation:
https://www.cisco.com/c/en/us/td/docs/routers/asr920/configuration/guide/ipaddr-dhcp/16-12-1/b-dhcp-xe-16-12-asr920/b-dhcp-xe-16-11-asr920_chapter_00.pdf The Dynamic Host Configuration Protocol (DHCP) is based on the Bootstrap Protocol (BOOTP), which provides the framework for passing configuration information to hosts on a TCP/IP network. DHCP adds the capability to automatically allocate reusable network addresses and configuration options to Internet hosts.
NEW QUESTION 24
What does the status LED abound the power button on the DX80 mean when it repeatedly flashes twice?
- A. no network connection
- B. incoming call
- C. standby mode
- D. normal operation
Answer: A
Explanation:
https://www.cisco.com/c/dam/en/us/td/docs/telepresence/endpoint/ce90/dx70-dx80-administrator-guide-ce90.pdf
NEW QUESTION 25
What ate two functions of Cisco Unified Communications Manager? (Choose two.)
- A. completes scheduling solution for conferencing
- B. provides limited conferencing capabilities through the Cisco IP Voice Media Streaming Application Service
- C. supports conferencing using DSP (Digital Signal Processors) resources
- D. interfaces with third-party devices such as Microsoft Skype
- E. includes Private Branch Exchange (PBX) phone system services
Answer: B,E
NEW QUESTION 26
Which two protocols are peer-to-peer signaling protocols where the end devices contain the intelligence to initiate and terminate calls and interpret call control messages? (Choose two )
- A. H.248
- B. SCCP
- C. H.323
- D. SIP
- E. MGCP
Answer: C,D
Explanation:
SIP and H.323 are examples of peer-to-peer signaling protocols where the end devices or gateways contain the intelligence to initiate and terminate calls and interpret call control messages
https://www.ccexpert.us/voice-over-ip/mcu.html
NEW QUESTION 27
In an Enterprise VoIP Telephony network, how does the Osco Unified Communications Manager function?
- A. as a packet telephony network device
- B. as a media switched telephone network device
- C. as a public switched telephone network device
- D. as a circuit-switched telephone network device
Answer: A
NEW QUESTION 28
How do digital voice networks function?
- A. Both a digital signal and noise are boosted by amplifiers
- B. The voice gateway can perform only a compression function
- C. The analog signal from the telephone is digitized into PCM signals by the voice codec
- D. Digital voice networks convert the sound waves into electrical signals that are analogous to the original sound waves
Answer: D
NEW QUESTION 29
Which Collaboration Room system requires another device to make audio or video calls?
- A. Cisco Webex Room USB
- B. Cisco Webex Room Kit Pro
- C. Cisco Webex Room Kit
- D. Cisco Webex Room Kit Mini
- E. Cisco Webex Room Kit Plus
Answer: A
Explanation:
NEW QUESTION 30
What is an example of a video codec?
- A. AAC
- B. G.729
- C. H.265
- D. ILBC
Answer: C
Explanation:
Explanation
https://en.wikipedia.org/wiki/Video_coding_format#:~:text=Examples%20of%20video%20coding%20formats,R
NEW QUESTION 31
While replacing a Cisco IP phone, the technician notices that the phone is not functional The phone is receiving power from a Cisco Catalyst PoE switch, and the phone backup software image is loaded but the phone still fails to complete the bootup To recover the phone what is the next approach?
- A. perform the factory reset on the IP phone
- B. contact a Cisco TAC engineer
- C. connect the IP phone to a different VLAN on another Cisco Catalyst switch
- D. verify the IP phone settings on the Cisco Unified CM
Answer: A
NEW QUESTION 32
Which command shows the status of power supplies and sensor temperatures?
- A. show diag
- B. show hardware
- C. show module
- D. show environment
Answer: D
NEW QUESTION 33
Which Collaboration Room system is recommended for more than 14 people?
- A. Cisco Webex Room Kit
- B. Cisco Webex Room Kit Mini
- C. Cisco Webex Room Kit Pro
- D. Cisco Webex Room USB
- E. Cisco Webex Room Kit Plus
Answer: C
Explanation:
https://www.cisco.com/c/en/us/products/collaboration-endpoints/webex-room-series/index.html#~room-kits
NEW QUESTION 34
Which command is less technical for "latency"?
- A. nslookup
- B. netstat -a
- C. ping
- D. traceroute
Answer: D
NEW QUESTION 35
Which Collaboration Room system is recommended for more than 14 people?
- A. Cisco Webex Room Kit
- B. Cisco Webex Room Kit Mini
- C. Cisco Webex Room Kit Pro
- D. Cisco Webex Room USB
- E. Cisco Webex Room Kit Plus
Answer: C
Explanation:
Explanation
https://www.cisco.com/c/en/us/products/collaboration-endpoints/webex-room-series/index.html#~room-kits
NEW QUESTION 36
Which distributed database allows hostnames lo be mapped to IP addresses?
- A. Cisco Discovery Protocol
- B. Domain Name System (DNS)
- C. Network Time Protocol (NTP)
- D. Dynamic Host Configuration Protocol (DHCP)
Answer: B
Explanation:
https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/software/release/12-2_55_se/configuration/guide/3750xscg/swadmin.html
NEW QUESTION 37
Which protocol is designed to time-synchronize a network of machines?
- A. Network Time Protocol (NTP)
- B. Cisco Discovery Protocol
- C. Domain Name System (DNS)
- D. Dynamic Host Configuration Protocol (DHCP)
Answer: A
Explanation:
Network Time Protocol (NTP) is an internet protocol used to synchronize with computer clock time sources in a network. It belongs to and is one of the oldest parts of the TCP/IP suite. The term NTP applies to both the protocol and the client-server programs that run on computers.
https://www.techtarget.com/searchnetworking/definition/Network-Time-Protocol#:~:text=Network%20Time%20Protocol%20(NTP)%20is,programs%20that%20run%20on%20computers.
NEW QUESTION 38
Which VoIP network component provides Call Admission Control (CAC), bandwidth control and management, and address translation?
- A. Multipoint Control Unit
- B. Gatekeeper
- C. IP Phone
- D. Gateway
Answer: B
Explanation:
Gatekeeper: A gatekeeper provides Call Admission Control (CAC), bandwidth control and management, and address translation.
http://what-when-how.com/cisco-voice-over-ip-cvoice/voip-fundamentals-introducing-voice-over-ip-networks-part-1/
NEW QUESTION 39
Which two services are provided in a cloud deployment? (Choose two.)
- A. meeting services
- B. messaging services
- C. video devices
- D. Telepresence 3
- E. phone devices
Answer: A,B
NEW QUESTION 40
Which network administration command-line tool is available in many computer operating systems for querying the Domain Name System (DNS)?
- A. nslookup
- B. traceroute
- C. netstat -a
- D. ping
Answer: A
NEW QUESTION 41
What is based on the Bootstrap Protocol (BOOTP) and provides the framework for passing configuration information to hosts on a TCP/IP network?
- A. Dynamic Host Configuration Protocol (DHCP)
- B. Cisco Discovery Protocol
- C. Domain Name System (DNS)
- D. Network Time Protocol (NTP)
Answer: A
Explanation:
Explanation
https://www.cisco.com/c/en/us/td/docs/routers/asr920/configuration/guide/ipaddr-dhcp/16-12-1/b-dhcp-xe-16-12 The Dynamic Host Configuration Protocol (DHCP) is based on the Bootstrap Protocol (BOOTP), which provides the framework for passing configuration information to hosts on a TCP/IP network. DHCP adds the capability to automatically allocate reusable network addresses and configuration options to Internet hosts.
NEW QUESTION 42
After replacing a Webex endpoint device codec, which three common tasks should be performed for operation verification? (Choose three )
- A. Adjust display settings
- B. Network connection speed test
- C. Turn volume lo maximum output
- D. Test call
- E. Content sharing
- F. Camera operation
Answer: D,E,F
NEW QUESTION 43
Cisco provides a factory reset option on every IP phone model 'or phone recovery and troubleshooting. Which key on the phone should be pressed and held when plugging in the phone power to start the 7800 or 8800 series IP phone reset process?
- A. # key
- B. Programmable feature button
- C. * key
- D. Settings button
Answer: A
Explanation:
Explanation
https://umd.service-now.com/itsupport?id=kb_article&article=KB0014973&sys_kb_id=fe07b300970bc510b825
NEW QUESTION 44
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