100-890 Sample Questions & Answers
Day-to-day support work for Webex-based Collaboration gear and IP Phones makes up nearly half of this, with the remainder covering VoIP basics, converged networks, and hardware recognition across the Room Kit, Board and Desktop Webex device families.
Launch the full 100-890 simulator →Showing 4 of 8 free samples.
- Question 1Intermediate
How does the Cisco IP phone learn the voice VLAN ID through Cisco Discovery Protocol? A.from the switchB.from the Cisco Unified CMC.from the voice gatewayD.from the DHCP server
Show answer & explanation
Correct answer: A
- Question 2Intermediate
Which feature in online meeting software facilitates conversing before, during, and after meetings to keep the work moving forward and productive? A.video conferencingB.integrated instant messagingC.intuitive controlsD.screen sharing
Show answer & explanation
Correct answer: B
- Question 3Intermediate
Which media-independent and network-independent protocol runs on Cisco devices and enables networking applications to learn about directly connected devices nearby? A.Network Time Protocol (NTP)B.Dynamic Host Configuration Protocol (DHCP)C.Cisco Discovery ProtocolD.Domain Name System (DNS)
Show answer & explanation
Correct answer: C
- Question 4Intermediate
How do digital voice networks function? A.The voice gateway can perform only a compression function.B.Both a digital signal and noise are boosted by amplifiers.C.Digital voice networks convert the sound waves into electrical signals that are analogous to the original sound waves.D.The analog signal from the telephone is digitized into PCM signals by the voice codec.
Show answer & explanation
Correct answer: D
Ready for the real thing?
The full 100-890 simulator has every exam-style question, timed mode, and instant scoring.