Question 291:

• JAMB 2022

When does the output of a NAND gate =1?

A. Whenever a 0 is present at an input
B. Only when all input =0
C. Whenever 1 is present at an input
D. Only when all input =1

Question 292:

• JAMB 2022

A 2-input gate that can be used to pass a digital waveform unchanged at certain times and inverted at other times is ____________

A. AND gate
B. OR gate
C. NAND gate
D. XOR gate

Question 293:

• JAMB 2022

The end users are able to operate at the _______ tier.

A. Model
B. Application
C. Data
D. Presentation

Question 294:

• JAMB 2022

A tier in which the database resides along with the query processing language is called

A. Application tier
B. Data tier
C. Presentation tier
D. Model tier

Question 295:

• JAMB 2022

Java is a ______ language

A. High level
B. Low level
C. Machine
D. Algorithm