# Questions Week 11 Network Layer
## Aims
## Outcomes
1. Listing the 5 layers of the community mannequin.
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2. The community layer is comprised of two interacting layers, known as planes, what are these two planes?
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three. Briefly clarify the distinction between forwarding and routing in relation to the Network Layer.
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four. Give a quick rationalization: In classical or conventional routing, how is the management airplane logic decided?
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5. Give a quick rationalization: In SDN (Software program Outlined Networking) hos is the management airplane logic managed and distributed?
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6. In an IPv4 packet (see the IPv4) diagram posted within the Discord Channel (*notes-resources*), What’s the TTL fields function?
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7. What occurs to the worth of this subject every time it’s forwarded to a brand new router?
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eight. The Software layer packet known as a message. The Transport layer packer known as a section, what’s the Network layer packet known as?
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9. In a datagram, what’s the theoretical most of this measurement in IPv4 in line with the usual? What’s the useful most measurement because of the MTU?
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10. Fill within the clean. Each host on the web will need to have a ________ handle.
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11. True or False. Appropriate the sentence if false. You may have a subnet of 223.1.1.zero/24. The IP 223.1.1.100 is a legitimate handle on this subnet.
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12. True or False. Appropriate the sentence if false. You may have a subnet of 223.1.1.zero/24. The IP 223.1.2.100 is a legitimate handle on this subnet.
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13. Fill within the clean. There are three non-public networks outlined by RFC 1918 that routers won’t route by default. They’re 10.zero.zero.zero/eight, 172.16.zero.zero/16, and ______________ .
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14. Fill within the clean. One other title for a CIDR block is __________ (see RFC 950).
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15. On a neighborhood community, your house or on the college, what protocol do you utilize to acquire and IP handle?
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16. Utilizing that protocol within the earlier query, what’s the title of the system that fingers out the IP handle?
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17. Briefly clarify what are the four steps between shopper and server to acquire an IP handle (RFC 2131 part three.1)?
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18. Briefly clarify the idea of NAT, what it does, and the place it’s used (RFC 2663).
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19. Briefly clarify the idea of a firewall, what it does and the place on the community it’s used.
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20. Taking a look at SDN match guidelines, from the category 11/03 recording Half I video — what are the three layers that an SDN controller can ahead based mostly on?
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21. Clarify in what means SDN routing violates classical layer three based mostly routing?
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22. Taking a look at RFC 1958, the unique architectural ideas of the web concerned transferring the connection intelligence to the “edges.” Taking a look at expertise like NAT, routing precedence queues, and SDN, the place will we see the community intelligence transferring?
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23. In coping with Routing Algorithm classes, the 2 basic ones are: per-router and logically centralized. Clarify the distinction between the 2 methodologies behind these algorithms.
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24. Fill within the clean: A set of routers underneath the management of 1 firm or group is known as ______________ system.
25. There are two major routing protocols, OSPF (RFC 2328) and BGP (RFC 4271).
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26. Which Routing Algorithm is used to propagate route updates between Autonomous Methods (AS)?
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27. Which Routing Algorithm is used to propagate route updates inside Autonomous Methods (AS)?
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28. True or False. Appropriate if False. The federal government distributes Autonomous Methods Numbers.
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