Basic CS [3i Infotech Placement]: Sample Questions 221 - 222 of 243

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Question 221

Basic CS
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Describe in Detail

Essay▾

What is NETBIOS and NET BEUI?

Explanation

  • NETBIOS:
    • Programming interface allowing I/O requests to be sent to and received from a remote computer.
    • Hides the networking hardware from applications.
    • Supports small to medium networks providing transport and network layer support.
    • Fast and small and works well for the DOS operating system.
  • System wide methods of resolving NETBIOS names to IP address are:
    • b-node - Broadcast node
    • p-node - Point-to-point node queries an NBNS name server to resolve addresses.
    • m-node - First uses broadcasts, then falls back to querying an NBNS name server.
    • h-node - The system first attempts to query an NBNS name server, then falls back to broadcasts if the name server fails.
  • NETBEUI:
    • NETBEUI is NETBIOS extended user interface.
    • A transport protocol designed by Microsoft and IBM for small subnets responsible for data transport.
    • Handles all the frame formatting not handled by NETBIOS.

Question 222

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Write in Short

Short Answer▾

When reallocating memory if any other pointers point into the same place of memory do you have to readjust these other pointers or do they get readjusted automatically?

Explanation

  • Pointers are just variables that store a memory address in them.
  • We can have as many pointers that point to a single location in memory.
  • While reallocating memory the pointers are readjusted automatically.

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