Tag - Signals

What is the difference between OSPF and RIP?
Interview Question of CCNA Part 1

What is the difference between OSPF and RIP?

RIP and OSPF are both routing protocols likely you have used without even knowing it. A routing protocol describes the way your data (or signals) get from your PC on a network to another PC or device on the network.

RIP = Hop count Algorithm

The only metric used to calculate the cost of a path (path is from point A to destination B) is the hop count from router A to router B, even if you have a path with more hops and more bandwidth available.

OSPF = Link State Algorithm

This is a more intelligent algorithm, tha build a topology of network and build the cost regarding some characteristics of path like bandwidth, load, reliability, etc.A real life example would be like when work is done and its time to drive home. You have multiple routes usually to choose from to get home. The shortest way home would obviously be a straight line from work to home. Unfortunately no magic road exists from where ever you are directly to where ever you need to go. So if you were using RIP to get home you would drive in a straight line (or take the roads that would more or less offer you a straight route home). Thing is, these roads may be BUSY, very busy in fact, you can sit in traffic for a half hour moving less than 1km sometimes. So technically the shortest way (straight line) may not be the most efficient way. Now if you were using OSPF, you would take into account traffic and other variables to decide how to get home. The quickest route home may not be the direct path, it may be a back road that has less traffic on it, through a sub division, and then to your house. However because you were using OSPF you got home quicker than if you were to use RIP as RIP didn’t really look at what the traffic was like. Now in the above paragraph turn the word “work” into “client” and the word “home” into “server” and replace the word “you” with “the packet” – magically we turn the above paragraph into tecnobabble


Interview Question of CCNA Part 1

1- Define Network?

Communication, Resource sharing and Media (When multiple host share their resources with each other OR when multiple devices connect with each other for resource sharing )

2 – Types of communication in IPv4?
Unicast, Multicast and Broad cast

3 – Types of communication in IPv6 ?
Unicast, Multicast and Anycast

4- Types of Resource Sharing?
Intranet , Extranet and Internet .

5- What is Collision?
When signal hits each other, collision accord.

6- Which Type of Transmission Bus Topology Support?
Half Duplex

7- What is the difference between half duplex and full duplex?
In half duplex, sender should b one. In full duplex, sender can be multiple.

8- Which way of communication bus topology use?

9- If there is only 2 Host in Bus Topology is that possible collision accord?
Yes, because end terminal will not absorb signals. Signal will be bounce back and collision will accord.

10- HUB in Star topology or Bus Topology?
In star topology, but logically works like a bus topology.

CCNA Interview Question Part 1

CCNA Interview Question Part 2

CCNA Interview Question Part 3

CCNA Interview Question Part 4

CCNA Interview Question Part 5

CCNA Interview Question Part 6

CCNA Interview Question Part 7

CCNA Interview Question Part 8

CCNA Interview Question Part 9

CCNA Interview Question Part 10

CCNA Interview Question Part 11

CCNA Interview Question Part 12

CCNA Interview Question Part 13

CCNA Interview Question Part 14

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