A. Command Description
B. Change Data
C. Copy Density
D. Compact Disc
✅ The correct answer is option D.
Technology MCQs
Who created Pretty Good Privacy (PGP)?
A. Phil Zimmermann
B. Tim Berners-Lee
C. Marc Andreessen
D. Ken Thompson
✅ The correct answer is option A.
Phil Zimmermann created the first version of PGP encryption in 1991. Pretty Good Privacy (PGP) is a data encryption and decryption computer program that provides cryptographic privacy and authentication for data communication. PGP is often used for signing, encrypting and decrypting texts, E-mails, files, directories and whole disk partitions to increase the security of e-mail communications.
Phil Zimmermann created the first version of PGP encryption in 1991. Pretty Good Privacy (PGP) is a data encryption and decryption computer program that provides cryptographic privacy and authentication for data communication. PGP is often used for signing, encrypting and decrypting texts, E-mails, files, directories and whole disk partitions to increase the security of e-mail communications.
What is the relationship between resistivity r and conductivity s?
A. R = s2
B. R = s
C. R > s
D. R = 1/s
✅ The correct answer is option D.
Made from a variety of materials, such as carbon, which inhibits the flow of current…?
A. Choke
B. Inductor
C. Resistor
D. Capacitor
✅ The correct answer is option C.
So named because it resists (or inhibits) the flow of current.
So named because it resists (or inhibits) the flow of current.
What does EPROM stand for?
A. Electric Programmable Read Only Memory
B. Erasable Programmable Read Only Memory
C. Evaluable Philotic Random Optic Memory
D. Every Person Requires One Mind
✅ The correct answer is option B.
A chip found in alomst every microprocessor…
A chip found in alomst every microprocessor…
In what year was the “@” chosen for its use in e-mail addresses?
A. 1976
B. 1972
C. 1980
D. 1984
✅ The correct answer is option B.
Who is largely responsible for breaking the German Enigma codes, created a test that provided a foundation for artificial intelligence?
A. Alan Turing
B. Jeff Bezos
C. George Boole
D. Charles Babbage
✅ The correct answer is option A.
Which is a type of Electrically-Erasable Programmable Read-Only Memory?
A. Flash
B. Flange
C. Fury
D. FRAM
✅ The correct answer is option A.
It’s commonly used for MP3 players, computer BIOS code and “thumb” drives. Originally developed in Japan by Toshiba, it has become quite popular for products requiring non-volatile erasable memory. Flash devices have a limited number of erase cycles (typically 10,000 to 1,000,000 cycles) so they’re not as good a choice for applications in which the data changes constantly. However, since it has no moving parts (unlike a hard disk) it is an excellent choice for storing the operating code for small personal electronics like PDAs, cell phones, digital cameras, and the data in items like MP3 players.
It’s commonly used for MP3 players, computer BIOS code and “thumb” drives. Originally developed in Japan by Toshiba, it has become quite popular for products requiring non-volatile erasable memory. Flash devices have a limited number of erase cycles (typically 10,000 to 1,000,000 cycles) so they’re not as good a choice for applications in which the data changes constantly. However, since it has no moving parts (unlike a hard disk) it is an excellent choice for storing the operating code for small personal electronics like PDAs, cell phones, digital cameras, and the data in items like MP3 players.
Larger buildings may be supplied with a medium voltage electricity supply, and will required a substation or mini-sub. What is the main item of equipment contained in these?
A. Transformer
B. Transponder
C. Transducer
D. Converter
✅ The correct answer is option A.
The transformer is used to transform a medium voltage supply to a low voltage supply, e.g. from 11 000 V to 400 V. A transformer is rated in kVA, kilo-Volt-Amps, which is a measurement of electrical power.
The transformer is used to transform a medium voltage supply to a low voltage supply, e.g. from 11 000 V to 400 V. A transformer is rated in kVA, kilo-Volt-Amps, which is a measurement of electrical power.
Most modern TV’s draw power even if turned off. The circuit the power is used in does what function?
A. Sound
B. Remote control
C. Color balance
D. High voltage
✅ The correct answer is option B.
Some authorities are recommending TV’s, VCR’s and Stereo’s be connected to power strips with switches and turned off when not in use to save energy. Your remote will not work until power is switched back on.
Some authorities are recommending TV’s, VCR’s and Stereo’s be connected to power strips with switches and turned off when not in use to save energy. Your remote will not work until power is switched back on.