100-890 Supporting Cisco Collaboration Devices Practice Questions

Which product usually requires certificate validation before being used? A.Transport Layer NetworkingB.Transport Layer DevicesC.Transport Layer SecurityD.Transport Layer Protocols

Which protocol is designed to time-synchronize a network of machines? A.Domain Name System (DNS)B.Cisco Discovery ProtocolC.Dynamic Host Configuration Protocol (DHCP)D.Network Time Protocol (NTP)

Which two statements describe subnetting? (Choose two.) A.It is a physical layer (OSI layer 1) construct.B.The broadcasts from subnet 172.16.1.0 are detected by subnet 172.16.2.0.C.Network traffic is reduced.D.Subnetting is equal to a broadcast domain.E.It is a logical local area network.

What are two reasons that video conferencing solutions developed before the 1990s were impractical? (Choose two.) A.They had not been invented yet.B.They operated at a high frame rate.C.They operated at a high expense.D.They produced high-resolution image quality.E.They produced an unreliable image quality.