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Which of the following fields are contained in an ARP packet?
An ARP (Address Resolution Protocol) packet includes several fields essential for mapping IP addresses to MAC addresses. The fields include:
Source Protocol Address: Identifies the IP address of the requesting device.
Source Hardware Address: Contains the MAC address of the source.
Hardware Type: Indicates the hardware type, typically Ethernet.
Operation Code: Specifies the operation (request or reply). These fields collectively allow devices to resolve IP addresses to physical MAC addresses, enabling direct communication within the local network.
Which of the following packets is used by OSPF to describe its link state database (LSDB)?
Which statement is true regarding the following command?
ip route-static 10.0.12.0 255.255.255.0 192.168.1.1
The command defines a static route to the network 10.0.12.0 with a 255.255.255.0 subnet mask, using 192.168.1.1 as the next-hop address. Static routes are manually set routes with fixed paths, and by default, they have higher priority than dynamic routes, but the specific preference value depends on configuration. This setup enables targeted routing for traffic towards the specified destination.
Which of the following statements is false about OSPF area partitioning?
Statement A (False): Any router can function as an ASBR, not just ABRs. An ASBR is any router that connects OSPF to an external network, regardless of area.
Statement B (True): Area 0 is the OSPF backbone area, and all other areas must connect to it.
Statement C (True): Area partitioning reduces LSDB size by limiting the scope of LSAs within an area.
Statement D (True): Routers in the same area have the same LSDB, ensuring consistency in link-state information.
Thus, the correct answer is A (False statement).
Which of the following statements regarding static routing and dynamic routing is incorrect?
Static routing does not automatically recover from link failures; manual reconfiguration is required if a static route path becomes invalid. Dynamic routing protocols, on the other hand, adapt automatically to network changes, adjusting routes as needed. (Reference: HCIA-Datacom Training Material, Static vs. Dynamic Routing)
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