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Counseling Astrology Advice | Tarot Advice | Parenting Dating Advice | Love Advice | Divorce Advice Legal Advice | Debt Advice | Career Advice looking for its IP address and the location of its operating system boot files BOOTP sends a UDP message with a subnetwork broadcast address and waits for a reply from a server that gives it the IP address. The same message might contain the name of the machine that has the boot files on it. If the boot image location is not specified, the workstation sends another UDP message to query the server. 12. Explain a DNS resource record A resource record is an entry in a name server's database. There are several types of resource records used, including name-to-address resolution information. Resource records are maintained as ASCII files. DNS uses UDP for communication between servers. It is a better choice than TCP because of the improved speed a connectionless protocol offers. Of course, transmission reliability suffers with UDP. Interior gateways connect LANs of one organization, whereas exterior gateways connect the organization to the outside world. 15. Explain the HELLO protocol used for The HELLO protocol uses time instead of distance to determine optimal routing. It is an alternative to the Routing Information Protocol. 16. What are the advantages and disadvantages of the three types of routing tables The three types of routing tables are fixed, dynamic, and fixed central. The fixed table must be manually modified every time there is a change. A dynamic table changes its information based on network traffic, reducing the amount of manual maintenance. A fixed central table lets a manager modify only one table, which is then read by other devices. The fixed central table reduces the need to update each machine's table, as with the fixed table. Usually a dynamic table causes the fewest problems for a network administrator, although the table's contents can change without the administrator being aware of the change. 17. Explain a TCP connection table It is a sequence of IP addresses identifying the route a datagram must follow. A source route may optionally be included in an IP datagram header. 19. Explain RIP (Routing Information Protocol) It is a simple protocol used to exchange information between the routers. 20. Explain SLIP (Serial Line Interface Protocol) |
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