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Bond [772]
3 years ago
10

Match each term to the appropriate definition. DBMS data mining hash file index key field locking protocol relation roll back sc

hema SQL A. A means of locating a particular record within a file B. The process of extracting hidden information C. A storage system that provides efficient access to randomly chosen items D. A structural unit (with rows and columns) in a popular database model E. A system to guard against database errors due to performing transactions concurrently F. An item used to identify records uniquely G. Performs database operations requested by application software H. A popular language that implements relational database operations I. A "road map" of a particular database's design J. To "unwind" a transaction
Computers and Technology
1 answer:
puteri [66]3 years ago
5 0
The correct answer is e just took the test on edg
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Eat a a dong dong edi35(
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4 years ago
Block elements start a new line when rendering? (true or false)
bekas [8.4K]

Answer:true

Explanation:

3 0
3 years ago
You are going to write a program for Computer test which will read 10 questions from a file, order them randomly and provide the
ollegr [7]

Answer:

from pprint import pprint

import random

match = {

   "mcq1": "a",

   "mcq2": "c",

   "mcq3": "c",

   "mcq4": "d",

   "mcq5": "a",

   "mcq6": "a",

   "mcq7": "a",

   "mcq8": "b",

   "mcq9": "d",

   "mcq10": "a"

}

file = open("test","r")

questions = set()

for i in range(10):

   ques = []

   for line in file:

       if "-" in line:

           break

       else:

           ques.append(line)

   questions.add(tuple(ques))

def quiz(questions, match):

   questions = list(questions)

   marks = 0

   for i in range(10):

       pprint(questions[i])

       mcq = "mcq",str(i+1)

       mcq = list(mcq)

       answer = input("enter your answer: ")

       if answer == match["".join(mcq)]:

           marks += 1

   return marks

print("Your score is: ",quiz(questions, match))

Explanation:

the file which has been loaded is test, and its data is provided below...

mcq1. The device which converts analog signals to digtital signals and vice versa is called.

a) mother board

b) TAP

c) Modem

d) I/O device

-

mcq2. The main components of a computer system are.

a) TAP, CPU, Printer

b) CPU, Input device

c) CPU, ALU, CU

d) CPU , Output device , Memory unit, Control unit

-

mcq3. A source program is a program.

a) writter in machine laguage

b) translated in machine langaue

c) written in high level language

d) required to boot a computer

-

mcq4.Which image format supports transparency in images.

a) PNG

b) GIF

c) JPG

d) A & B

-

mcq5. (10111) 2 = (?) 10.

a) 23

b) 50

c) 24

d) 89

-

mcq6. UNICODE is an example of.

a) character encoding set

b) driver

c) software

d) database

-

mcq7. (10111) 2 = (?) 10.

a) 23

b) 50

c) 24

d) 89

-

mcq8. NTFS stand for.

a) Network File Saving

b) New Technology File System

c) Newt Trend File Saving

d) Non Technology File System

-

mcq9. FF is example of.

a) Octal number system

b) Binary Number System

c) Decimal Number System

d) Hexadecimal number system

-

mcq10. Emails are sent with the help of ?

a) SMTP

b) FTP

c) HTTP

d) UDP

-

3 0
3 years ago
Ryan is looking to buy a new HDTV set. He knows from friends that LCD set screens reflect less light than plasma set screens, bu
lbvjy [14]

Answer: Cognitive

Explanation:

 According to the question, the Ryan shows cognitive attitude towards the HDTV. The cognitive component basically refers to the three main components that are:

  • Thoughts
  • Beliefs
  • Attributes

The cognitive component is one of the type of attitude which basically consist of various types of thoughts, knowledge and the beliefs towards the any type of object. It is one of the belief and opinion of the attitude.  

3 0
3 years ago
Here is the model I’m working on and can’t figure it out this model shows the basic process of making a protein what are the str
kolbaska11 [484]

It  does look like a model

Hope it helps I mean just my opinion.

8 0
3 years ago
Read 2 more answers
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