Which of the following is correct regarding Aggregate functions?
Options: it takes a list of values and return a single values as result
B. it takes a list of values and return a list of values as result
C. it takes a single value and returns a list of values as result
D. it takes a single value and returns a single value as result
Suppose that you have a the maintenance package identifies several possible field replaceable units (FRUs) that will resolve the problem. What should you do after turning the power off?
Options: Replace the indicated parts, one at a time in the recommended sequence, until the problem is resolved; return unused FRUs to stock, Replace all of the indicated FRUs at once and return the machine to the customer if the problem is resolved, Follow the same procedure as in ays replace the system board first if it is on the list of possible FRUs If multiple FRUs are indicated, then software is the most likely source of the problem, None of the above
Which of the following is true concerning a global transaction?
Options: The required data are at one local site and the distributed DBMS routes requests as necessary., The required data are located in at least one nonlocal site and the distributed DBMS routes requests as necessary., The required data are at one local site and the distributed DBMS passes the request to only the local DBMS., The required data are located in at least one nonlocal site and the distributed DBMS passes the request to only the local DBMS.
When connecting a ribbon cable to a connector, how do you know which direction to plug it in?
Options: The red line in the cable goes to the highest pin number, The colored line in the cable goes to pin #1, It does not matter, The blue or red line in the cable goes away from the power connector
0.It is an electronic commerce in digital goods and services, intended for consumption by the human senses. It encompasses a range of formats, including text, structured data, image, raster/bit-map and vector, moving image (animation and video), sound, and combinations of the above (multimedi(A).
Options: (A)Electronic data interchange (EDI) (B) Electronic Publishing (C) Electronic Services Delivery (ESD) (D) None of these 126 | 1
When a parallel RLC circuit is operating at its resonant frequency:
Options: capacitive reactance is greater than the inductive reactance, inductive reactance is greater than the capacitive reactance, inductive reactance is equal to the capacitive reactance, the difference between inductive and capacitive reactance is equal to the resistance