IT Jobs : CISCO

1. CCNA Routing and Switching 200-120 Course Syllabus

Exam info

Exam time: 90 minute

Question 50-53 minutes

Number : 1000

Pass marks: 850

Cost : 290 us dollar

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2. RIP Routing Protocol

The Routing Information Protocol (RIP) is one of the oldest distance-vector routing protocols which employ the hop count as a routing metric. RIP prevents routing loops by implementing a limit on the number of hops allowed in a path from source to destination.

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3. EIGRP Routing Protocols

EIGRP use five types of packets to communicate:

\ > Hello : used to identify neighbors. They are sent as periodic multicasts

> Update : used to advertise routes, only sent as multicasts when something is changed

> Ack : acknowledges receipt of an update. In fact, Ack is Hello packet without data. It is always unicast and uses

UDP.

> Query : used to find alternate paths when all paths to a destination have failed

> Reply : is sent in response to query packets to instruct the originator not to recompute the route because feasible

successors exist. Reply packets are always unicast to the originator of the query

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5. OSPF routing between Cisco Router and Mikrotik Router

For this I have used GNS3 for cisco router and Virtual box for mikrotic router. Cisco router in GNS3 is connected to a host which is configured by my LAN card adapter. Mikrotic router is connected to also LAN by bridging in virtualbox.
GNS3 Settings

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6. NTP Configuration in Cisco Router

The NTP Server is the master NTP server in this activity. You will configure authentication on the NTP server and the routers. You will configure the routers to allow the software clock to be synchronized by NTP to the time server. Also, you will configure the routers to periodically update the hardware clock with the time learned from NTP.