100-890 Free Practice Test

Which distributed database allows hostnames lo be mapped to IP addresses?

1. A. Dynamic Host Configuration Protocol (DHCP)
2. B. Network Time Protocol (NTP)
3. C. Domain Name System (DNS)
4. D. Cisco Discovery Protocol

Correct Answer: C
https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/software/release/12-2_55_se/configur

What might require certificate validation before being used?

1. A. Transport Layer Devices
2. B. Transport Layer Protocols
3. C. Transport Layer Networking
4. D. Transport Layer Security

Correct Answer: D

Which type of network can transmit data voice and video or any combination of these services over the same networks?

1. A. traditional network
2. B. dedicated network
3. C. multimode network
4. D. converged network

Correct Answer: D

What does the status LED abound the power button on the DX80 mean when it repeatedly flashes twice?

1. A. standby mode
2. B. incoming call
3. C. no network connection
4. D. normal operation

Correct Answer: C
https://www.cisco.com/c/dam/en/us/td/docs/telepresence/endpoint/ce90/dx70-dx80-administrator-guide-ce90.pd

Which network administration command-line tool is available in many computer operating systems for querying the Domain Name System (DNS)?

1. A. nslookup
2. B. ping
3. C. netstat -a
4. D. traceroute

Correct Answer: A