What are two tasks the network gatekeeper performs in an Internet Protocol videoconferencing (IP/VC) system? (Choose two)

In a campus LAN which area has the following characterstics? It is the aggregation point for access-area switches. It provides connection between the access and core areas.

YourDomain .com, a producer of educational videos, are contemplating to use an optical networking solution to improve productivity.
The optical network technology provides two customer business needs? (Select two.)

YourDomain .com, a large online retailer, has a primary and a standby corporate data center.
YourDomain .com seeks a technology with the following characteristics regarding the information exchange between the two data centers:
high speedsecurereliablesynchronized What technology should be chosen?

Which three are standard Cisco warranties? (Choose three)

Which Cisco Catalyst series best fits in the distribution area of a midsize campus local-area network (LAN)?

You work as a network consultant at YourDomain .com. YourDomain has a multi-vendor network. You suggest that Cisco products should be used. Your boss asks you to motivate your decision.
What should you tell him?

You work as a network consultant at YourDomain .com. You are required to sell Cisco Internet Protocol (IP) telephony solutions. Which would be the two best would-be customers? (Choose two)

How does a switch respond when it receives a message?

You work as a network consultant at YourDomain .com. You trainee Jack asks you what Cisco software would supply intelligence to the Cisco network?