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Assembler -CORRECT ANSWER A program that translates assembly-language
programs into machine code.
assembly language -CORRECT ANSWER A low-level programming language in which
a mnemonic is used to represent each of the machine language instructions.
block comment -CORRECT ANSWER Enclosed between /* and */ on one or several
lines in the source code.
bus -CORRECT ANSWER A system that connects all the components of the computers
together.
bytecode verifier -CORRECT ANSWER A program in the JVM that checks the validity
of the bytecode and ensures that the bytecode does not violate Java's security
restrictions.
cable modem -CORRECT ANSWER Uses the TV cable line maintained by the cable
company. A cable modem is as fast as a DSL.
central processing unit (CPU) -CORRECT ANSWER A small silicon semiconductor chip
with millions of transistors that executes instructions.
class loader -CORRECT ANSWER When executing a Java program, the JVM first
loads the bytecode of the class to memory using a program called the class loader. If
your program uses other classes, the class loader dynamically loads them just before
they are needed.
compiler -CORRECT ANSWER A software program that translates source code (e.g.,
Java source code) into a machine language program.
console -CORRECT ANSWER Refers to the input and output device of a computer.
dot pitch -CORRECT ANSWER The amount of space between pixels. The smaller the
dot pitch, the better the display.
DSL (digital subscriber line) -CORRECT ANSWER Uses a phone line and can transfer
data in a speed 20 times faster than a regular modem.
,encoding scheme -CORRECT ANSWER A set of rules that govern how a computer
translates characters into data the computer can actually work with.
low-level language -CORRECT ANSWER Refers to assembly language.
machine language -CORRECT ANSWER Is a set of primitive instructions built into
every computer. The instructions are in the form of binary code, so you have to enter
binary codes for various instructions.
memory -CORRECT ANSWER Stores data and program instructions for CPU to
execute.
________ is the physical aspect of the computer that can be seen.
A. Hardware
B. Software
C. Operating system
D. Application program -CORRECT ANSWER A
__________ is the brain of a computer.
A. Hardware
B. CPU
C. Memory
D. Disk -CORRECT ANSWER B
The speed of the CPU may be measured in __________.
A. megabytes
B. gigabytes
C. megahertz
D. gigahertz -CORRECT ANSWER CD
Why do computers use zeros and ones?
A. because combinations of zeros and ones can represent any numbers and
characters.
B. because digital devices have two stable states and it is natural to use one state for 0
and the other for 1.
C. because binary numbers are simplest.
D. because binary numbers are the bases upon which all other number systems are
built. -CORRECT ANSWER B
One byte has ________ bits.
A. 4
B. 8
, C. 12
D. 16 -CORRECT ANSWER B
Which of the following is not permanent storage devices?
A. floppy disk
B. hard disk
C. flash stick
D. CD-ROM
E. main memory -CORRECT ANSWER E
____________ is a device to connect a computer to a local area network (LAN).
A. Regular modem
B. DSL
C. Cable modem
D. NIC -CORRECT ANSWER D
____________ are instructions to the computer.
A. Hardware
B. Software
C. Programs
D. Keyboards -CORRECT ANSWER BC
Computer can execute the code in ____________.
A. machine language
B. assembly language
C. high-level language
D. none of the above -CORRECT ANSWER A
___________ translates high-level language program into machine language program.
A. An assembler
B. A compiler
C. CPU
D. The operating system -CORRECT ANSWER B
____________ is an operating system.
A. Java
B. C++
C. Windows
D. Visual Basic
E. Ada -CORRECT ANSWER C