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GK One-Line Question & Answer

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Computer Fundamentals → Introduction to Computer 31

Which of the following is NOT volatile memory?
Flash NAND
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Which type of software license allows modification and redistribution?
GPL (GNU Public License)
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The page fault occurs when?
A page referenced is not in RAM
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Which is the correct binary representation of -5 in 8-bit 2's complement?
11111011
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Decimal 0.25 in binary is?
0.01
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The purpose of a bootloader is?
Load the OS into memory
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Which generation introduced the concept of personal computing?
Fourth
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ASCII code 48 represents?
0
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Which component on a motherboard maintains date and time?
CMOS + RTC
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Which is the fastest cache level closest to CPU core?
L1
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A word in computing refers to?
Natural unit of data processed by CPU
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Which binary operation yields 1 only when both inputs are 1?
AND
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Which binary operation yields 1 when either input is 1?
OR
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XOR yields 1 when?
Both inputs different
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NAND is functionally complete because?
Any logic function can be built from NAND gates only
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De Morgan's theorem states?
NOT(A AND B) = NOT A OR NOT B
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Which logic gate has output that is always the complement of its input?
NOT
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A half adder adds?
Two single bits
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A full adder adds?
Two bits plus carry-in
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Flip-flops are used to store?
1 bit
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The prefix 'kilo' in computing equals?
1024
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The prefix 'mega' in computing equals?
1024²
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Which of following is the correct priority order (high to low) for Boolean operators?
NOT, AND, OR
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The minimum number of NAND gates to implement AND?
2
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Carry lookahead adder is faster than ripple carry because?
It computes carry signals in parallel
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Which memory cell stores one bit using 6 transistors?
SRAM cell
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Which memory cell stores one bit using 1 transistor and 1 capacitor?
DRAM
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Which of the following is NOT a component of CPU?
HDD
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MAR stands for in CPU?
Memory Address Register
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MDR stands for in CPU?
Memory Data Register
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The clock rate determines?
How fast CPU executes instructions
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Computer Fundamentals → Memory Units 5

The Harvard architecture differs from von Neumann in that?
It has separate memory for instructions and data
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Hard disk stores data on?
Magnetic platters
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What is a sector on a hard disk?
Smallest addressable storage unit on a track
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Program counter (PC) holds?
Address of next instruction to fetch
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Instruction Register (IR) holds?
Current instruction being executed
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Computer Fundamentals → Computer Security 1

WORM storage means?
Write Once Read Many
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Computer Fundamentals → Number System 3

Decimal 2048 in hexadecimal is?
800
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A byte is equal to?
8 bits
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Which number system group is most suitable for representing IP addresses?
Binary and Decimal
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