Answer question 21, 22, 23 showing fully all the steps. Solution should be perfect(very correct), clear, brief and explicit enough! D. Radio wavesA network interface card(NIC) isfoundA. In every network end-device(host)B. In the server onlyC. In the router21. If memory access takes 20 ns withcache and 110 ns without it, thenutility rate of the cache isapproximatelyA. 80%B. 90%C. 82%D. 84%22. Cache memory acts betweenA. CPU and RAMB. RAM and ROM15.D. At the terminal of every transmission_mediumIn memory hierarchy, the larger thememory theE. Higher the access time and thehigher the speed of transfer ofdata to CPUF. Higher the access time and thelower the speed of transfer ofdata to the CPUG. Shorter the access time and thehigher the speed of transfer ofdata to CPUH. Shorter the access time and thelower the speed of transfer ofdata to CPU16.C. CPU and Hard DisksD. None of these23. generally Dynamic RAM is used asmain memorycomputersystem as itA. consumes less powerB. has higher speedC has lower cell densityD. needs refreshing circuitryLogic X-OR operation of(11101010)2& (10101010)2 has asresultsA. 10010001B. 01100000C. 10000000D. 10000000(-27)10 can be represented in a signedmagnitude format and in a 1'scomplement format asE.F.G.17. Floating point representation is usedto storeA. Boolean valuesB. Whole numberC. Real numberD. integers18. what characteristic of RAM makes itnot suitable for permänent storage?A. It is volatileB. UnreliableC. Too slow111011 & 100100100100 & 111011011011 & 100100100100 & 011011S8Н.In computers, subtraction is generallycarried out by the hardware usingA. 9 complementB. 10's complement1's complementD 2's complement20. What characteristic of ROM memorymakes it suitable for use in embeddedsystems?A. Too slowB. It is not programmableC. It keeps informationpermanentlyD. It has a high capacity26. The 2s compliment form (use 6 bitword) of the number 1010 isA. 111100B. 110110C. 110111D. 101127. The memory units that communicatesdirectly with the CPU is called theA. Main memoryB. Secondary memoryC. Shared memoryD. Auxiliary memory28. The equivalence of the Booleanexpression:z=X(X+P) isE. z=x(xy)19.

Data: Tavg = 20 ns T1 = 10 ns T2 = 110 ns Formula: Tavg = T1 + (1 - H)T2 Calculation: 20 = 10 + (1 -…

Answered: Answer question 21, 22, 23 showing…

Answer question 21, 22, 23 showing fully all the steps. Solution should be perfect(very correct), clear, brief and explicit enough!

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Requirement Analysis

A process that determines the user expectations for a software product is called requirement analysis. In software engineering, requirement analysis is known as requirement engineering. It involves communication with end-users and stakeholders to determine whether the system or software requirements are validated, conflicts are solved, and key requirements are documented. The first activity of the Software Development Life Cycle (SDLC) is requirement analysis.

Question

Answer question 21, 22, 23 showing fully all the steps. Solution should be perfect(very correct), clear, brief and explicit enough!

D. Radio waves
A network interface card(NIC) is
found
A. In every network end-device
(host)
B. In the server only
C. In the router
21. If memory access takes 20 ns with
cache and 110 ns without it, then
utility rate of the cache is
approximately
A. 80%
B. 90%
C. 82%
D. 84%
22. Cache memory acts between
A. CPU and RAM
B. RAM and ROM
15.
D. At the terminal of every transmission_
medium
In memory hierarchy, the larger the
memory the
E. Higher the access time and the
higher the speed of transfer of
data to CPU
F. Higher the access time and the
lower the speed of transfer of
data to the CPU
G. Shorter the access time and the
higher the speed of transfer of
data to CPU
H. Shorter the access time and the
lower the speed of transfer of
data to CPU
16.
C. CPU and Hard Disks
D. None of these
23. generally Dynamic RAM is used as
main memory
computer
system as it
A. consumes less power
B. has higher speed
C has lower cell density
D. needs refreshing circuitry
Logic X-OR operation of
(11101010)2& (10101010)2 has as
results
A. 10010001
B. 01100000
C. 10000000
D. 10000000
(-27)10 can be represented in a signed
magnitude format and in a 1's
complement format as
E.
F.
G.
17. Floating point representation is used
to store
A. Boolean values
B. Whole number
C. Real number
D. integers
18. what characteristic of RAM makes it
not suitable for permänent storage?
A. It is volatile
B. Unreliable
C. Too slow
111011 & 100100
100100 & 111011
011011 & 100100
100100 & 011011
S8
Н.
In computers, subtraction is generally
carried out by the hardware using
A. 9 complement
B. 10's complement
1's complement
D 2's complement
20. What characteristic of ROM memory
makes it suitable for use in embedded
systems?
A. Too slow
B. It is not programmable
C. It keeps information
permanently
D. It has a high capacity
26. The 2s compliment form (use 6 bit
word) of the number 1010 is
A. 111100
B. 110110
C. 110111
D. 1011
27. The memory units that communicates
directly with the CPU is called the
A. Main memory
B. Secondary memory
C. Shared memory
D. Auxiliary memory
28. The equivalence of the Boolean
expression:
z=X(X+P) is
E. z=x(xy)
19.

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