Performance analysis and tuning is which of the following?
Options: Undertaken one time at the time of a DBMS installation, Undertaken one time at the time of the implementation of a new application, Undertaken as an ongoing part of the backup of a database, Undertaken as an ongoing part of managing a database
Computers cannot communicate with each other directly over telephone lines because they use digital pulses whereas telephone lines use analog sound frequencies. What is the name of the device which permits digital to analog conversion at the start of a long distance transmission?
The rate of infiltration normally declines rapidly during the early part of rainstorm event and reaches a constant value after several hours of rainfall. The factors responsible for this phenomenon are the filling of fine soil pores with water, which reduces capillary forces moistened soil, clay particles to swell and reduce the size of pores raindrop impact breaking up with soil clumps, splashing fine particles into pores
Which of the following technique is used for Time-To-Line (TTL)?
Options: a technique used in best-effort delivery system to avoid endlessly looping packets., a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame, One of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size., All of the above
The proper definition of a modern digital computer is
Options: an electronic automated machine that can solve problems involving words and numbers, a more sophisticated and modified electronic pocket calculator, any machine that can perform mathematical operations ', a machine that works on binary code