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 CCNA Questions

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Posts : 114
Join date : 2012-10-29
Location : Lahore Pakistan

PostSubject: CCNA Questions   Tue Jul 15, 2014 6:36 pm

<<<<=== CCNA ===>>>>
Q1:- BOOTP helps a diskless workstation boot. How does it get a message to the network looking for its ip address?
Ans:- A protocol used primarily on TCP/IP networks to configure diskless workstations. BOOTP sends a UDP message with a subnetwork broadcast address and waits for a reply from a server that gives it the IP address.
Q2:- Describe, in general terms, the reasons for implementing LAN segmentation.
Ans:- It confines user traffic to a segment and addresses and solves distance limitation problems. Segmentation also cuts down on the traffic generated by broadcasts and multicasts, and thereby increases performance. Because of the reduction of the size of the segment, collisions and overall traffic also are reduced.
Q1:- .
What is SLIP (Serial Line Internet Protocol)?
Ans:- An industry standard serial encapsulation for point-to-point connections that supports only a single routed protocol, TCP/IP.
Q2:- What is RIP (Routing Information Protocol)?
Ans:- Rip run on any Routers hence called as Open Standard Distance Vector Routing Protocol. It's a classfull routing protocol meaning when updates are sent they send only IP address but not subnet mask. Administrative Distance is 120.
Metric used is Hop counts (number of routers to cross to reach the destination).
Rip uses algorithm name Bellman Ford Algorithm to determine the best path selection.
Supports maximum 15 Hops.
Supports 6 paths if there is a tie in metric i.e. same metric.
RIP Timers
Route update timer – 30seconds
Route invalid timer – 180 seconds
Holddown timer – 180 seconds
Route flush timer – 240 seconds
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