Link state routing protocols are newer and they require… Modern encryption standards Less memory and less processing power Manual updating More memory and more processing power 6. What is one main reason CIDR is helpful in modern networking? CIDR increases network security with no additional resources CIDR allows for more arbitrary network sizes CIDR simplifies MAC address assignment CIDR lowers the amount of power needed to run a server
The Correct Answer and Explanation is :
The correct answers are:
- Link state routing protocols require:
More memory and more processing power. Explanation:
Link-state routing protocols, such as OSPF (Open Shortest Path First) and IS-IS (Intermediate System to Intermediate System), are more sophisticated compared to distance-vector protocols like RIP. They require more memory and processing power because each router maintains a complete map of the network’s topology, which it continuously updates and distributes. This means routers have to store detailed information about all reachable destinations, including the state of the links and the costs associated with each route. The routers use algorithms such as Dijkstra’s to calculate the shortest path to each destination based on the entire network topology, which demands more CPU cycles and memory than simpler protocols. This also contributes to more accurate routing decisions and faster convergence times, but at the cost of increased resource usage. This makes them ideal for larger and more complex networks where such resources are available and necessary. - CIDR is helpful in modern networking because:
CIDR allows for more arbitrary network sizes. Explanation:
CIDR (Classless Inter-Domain Routing) was introduced to improve the scalability of the IP addressing scheme and to allow for more efficient use of IP address space. Before CIDR, IP addresses were divided into rigid classes (A, B, C), which often resulted in wasted address space, as networks were assigned a fixed number of IP addresses based on these classes. CIDR, however, allows for more flexible network sizes by permitting arbitrary-length subnet masks. This flexibility allows network administrators to allocate address blocks more efficiently, minimizing wasted IP space. With CIDR, an organization can request a subnet size that is closer to the actual number of addresses needed, reducing the strain on the available IP address pool, particularly important for IPv4 as address space becomes scarce. CIDR also helps to aggregate routing entries, reducing the size of routing tables and improving routing efficiency. This capability is crucial for managing large networks, optimizing address usage, and ensuring the long-term scalability of the Internet.