Part 1 Chapter 4

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Fundamentals of IPV4 Key Topics
Wagner Ramirez
Flashcards by Wagner Ramirez, updated more than 1 year ago
Wagner Ramirez
Created by Wagner Ramirez over 6 years ago
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Question Answer
What is the network ID for Unicast address class A? The first octet is used for the network 1 to 126 (1.0.0.0 -126.0.0.0)
What is the network ID for unicast Network address B? The first two octets define the network address 128 to 191 (128.0.0.0 to 191.0.0.0)
What is the network ID for unicast Network Class C? The first 3 octets define the network address192 to 223 (192.0.0.0 to 223.255.255.0)
Which are the two-step process of how routers route (forward) packets? 1-If the destination IP address is in the same IP subnet as I am, send the packet directly to that destination host. 2-Otherwise, send the packet to my default gateway
Which are the Four-step process of how routers route (forward packets) 1.Check the frame for errors: Use the FCS to ensure the frame had no errors otherwise discard the frame 2. De-encapsulate the frame: Discard old data link header and trailer, leaving the IP packet 3. Compare the IP packet´s destination IP address to the routing table and find the best path to the destination. 4. Encapsulate the IP packet inside a new data-link header and trailer and forward the frame.
Which are the goals of routing protocols? 1- To dynamically learn each subnet in the internetwork 2. If more than one route is available to place the best route in the routing table 3.If another route through another neighboring router is available, to add the route to the routing table 4. To work quickly when adding new routes or replacing lost routes. 5. To prevent routing loops.
What is the method by which any host or router can dynamically learn the MAC address on the same LAN? ARP (Address Resolution Protocol ) It has to broadcast messages types: ARP Request- ARP Reply
Which are functions of a routing protocol? 1 Advertising known routes to neighboring routers 2 Learning routes, and putting those routes into the routing table, for routes advertised to the router by its neighboring routers
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