Which two operate on the network layer of the Open System Interconnection (OSI) model? (Choose two)

Internet Protocol TV Broadcasting (IP/TV) is appropriate for which two business scenarios? (Choose two)

A partnership between an architectural firm and an engineering consulting company requires a network-to-network connection to boost productivity and prevent interception of proprietary information.
Which Cisco solution best meets this business need?

The Aironet 1100 and 1200 Series components are intended to support which network technology?

Which Internet Protocol (IP) telephony element is best categorized as a voice application component?

An essential element of Cisco development has been its leading role in advancing what network protocol?

Which device connects a local-area network (LAN) to a wide-area network (WAN)?

Which Cisco product allows customers to centrally manage their network security policies?

Which three are benefits of advance replacement? (Choose three)

You work as a network consultant at YourDomain .com. You are securing a network for a client. You implement physical and virtual barriers in order to protect the network.
What network security element corresponds to this activity?