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Ccent, Ccna, Ccnp, Ccie Interview Questions

Author: M. Aslam Author Ranking Blue | Posted: 30-05-2008 | Comments: 1 | Views: 164 | Rating:  (93) Article Popularity - Blue (?) Got a Question? Ask.
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Q-1 which layer of the 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, 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 for multiservice (multimedia) applications, usually in a Voice
Over IP environment.

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1. mukeshdun (02:08, 18.06.2008)
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