Consider the following code example:

Computers and Technology

1 answer:

vampirchik [111]3 years ago

3 0

Answer:

This exercise includes the following question and options:

What is the logical error in the coded query?

A) The condition in the WHERE clause should be coded in the HAVING clause.

B) The column name for the fifth column in the result set doesn't match the data.

C) The three columns in the ORDER BY clause should use the DESC keyword so the city totals will be in the right sequence.

D) The condition in the HAVING clause should be coded in the WHERE clause.

And from the options provided, the error is in the 5th column, due to the column name in that result series/group doesn't really coincide with the data, thereby the correct option is B).

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A ____ transmits all data received to all network devices connected to it, regardless of which device the data is being sent to.

Alecsey [184]

A Hub transmits all data received to all network devices connected to it, regardless of which device the data exists being sent to.

A hub stands for the connection point in a computer device where data from numerous directions converge and are then sent out in many directions to respective devices. A hub may even act as a switch by preventing distinct data packets from proceeding to a destination. There exist three types of network hubs: passive, active, and intelligent.

A network hub exists as a node that broadcasts data to every computer or Ethernet-based device connected to it. A hub stands less sophisticated than a switch, the latter of which can isolate data transmissions to specific devices. Network hubs stand best suited for small, simple local area network (LAN) environments.

Hence, A Hub transmits all data received to all network devices connected to it, regardless of which device the data exists being sent to.

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alexandr1967 [171]

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