Ccent, Ccna, Ccnp, Ccie Interview Questions.

 Q-1 which layer of the ccie workbook OSI model is responsible for reliable connections? Answer: The Transport layer of the OSI model is responsible for reliable connections. Q-2 what is the difference between acknowledgments and handshaking? Answer: Handshaking is used to negotiate the properties of a connection that is being established. Acknowledgments are used to tell the sender that data has been successfully received by the destination during the use of a connection. Q-3 How many VTP modes are there and what are they? Answer: Three: Server, Client, and Transparent Q-4 what are the two types of Trunk encapsulation protocols? Answer: IEEE 802.1Q and Cisco’s ISL Q-5 what are the four primary no routable protocols? Answer: SNA, ccie voice written NetBIOS, DEC LAT, DEC MOP Q- 6 What is the difference between TCP and UDP? Answer: The primary difference between TCP and UDP is that TCP is a connection oriented protocol and UDP is a connectionless protocol. Q- 7 What is HSRP? Answer: HSRP, or the Hot Standby Routing Protocol, is a Cisco proprietary protocol that brings routing functionality to end devices that would otherwise not be capable of taking advantage of redundant network connections. HSRP enables a pair of Cisco routers to work together to present the appearance of a single virtual default-gateway to end devices on a LAN segment. Q- 8 What is the difference between a Public IP address and a Private IP address? A: Public address space is a unique address that is assigned to a company. Private address space is not recognized by the Internet and can be used by anyone within their private network Q- 9 What does AAA stand for? Answer: Authentication, authorization, and accounting Q- 10 The H.323 protocol is used for what? Answer: H.323 is used ccie voice cbt for multiservice (multimedia) applications, usually in a Voice Over IP environment.