3i Infotech Papers: Sample Questions 1140 - 1141 of 1245

Examrace Placement Series prepares you for the toughest placement exams to top companies.

Question number: 1140

» Operating System » Unix



The very first process created by the kernal that runs till the kernal process is halts is


Choice (4) Response






None of the above


All of the above




  • Swapper is the first process created by kernel which in turn activates the init process.

  • Swapper is also known as scheduler.

  • While booting, special process called the ‘swapper’ or ‘scheduler’ is created with Process- ID 0.

  • The swapper manages memory allocation for processes and influences CPU allocation.

  • The swapper inturn creates 3 children:

    • The process dispatcher,

    • vhand and

    • dbflush

  • With IDs and respectively.

  • Dispatcher then spawns shell.

  • Unix keeps track of all the processes in an internal data structure called the Process Table.

Question number: 1141

» Basic CS » Networks

Essay Question▾

Describe in Detail

An IP/IPX packet is received by a computer having both IP/IPX. How is the packet handled.


Understanding of IP/IPX protocol.

Understanding of IP/IPX Protocol.

Understanding of IP/IPX protocol.

  • Internetwork Packet Exchange/Sequenced Packet Exchange is a set of network protocols that provide packet switching and sequencing for small and large networks.

  • IPX works at layer three of the Open Systems Interconnection model and SPX works at layer 4.

    • IP, IPX is connectionless and contains end-user data, such as IP addresses.

    • IPX/SPX is compatible with local area networks (LAN) or private networks and different communication protocol functions.

    • SPX is connection-oriented and used for routing information and connection-related functions. Routing Information Protocol routes server information, which provides optimal data routing.

  • When the IP/IPX packet is received by a server, which can hander either, it read a field in the packet header to understand whether it is IP or IPX protocol.