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saul85 [17]
3 years ago
8

In a relational database model, a(n) _____ operation pares down a table by eliminating columns according to certain criteria. in

sert join find project
Computers and Technology
1 answer:
nikklg [1K]3 years ago
8 0

I guess the correct answer is Project

If thе usеr is intеrеstеd in sеlеcting thе valuеs οf a fеw attributеs, rathеr than sеlеctiοn all attributеs οf thе Tablе (Rеlatiοn), thеn οnе shοuld gο fοr Prοjеct Οpеratiοn.

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Design a GUI program to find the weighted average of four test scores. The four test scores and their respective weights are giv
Alexus [3.1K]

<u>Answer:</u>

I am writing <em>partial code in</em> <em>c++ to calculate weighted average</em>. The weighted average should be calculated based on multiplying the test score and its <em>respective weight and finally add all the test score.</em>

<u>Explanation:</u>

<em>int arrtestscore[100];</em>

<em>int arrweight[100];</em>

<em>int n;</em>

<em>double weightedavg;</em>

<em>cout<<”Enter the number of test score for which weighted average needs to be calculated”;</em>

<em>cin>>n;</em>

<em>for(int x = 0; x <n;x++)</em>

<em>{</em>

<em> cout<<”Enter test score :” + (x+1) ;</em>

<em> cin>>arrtestscore[x];</em>

<em> count<<”Enter the respective weight:”;</em>

<em> cin>>arrweight[x];</em>

<em>}</em>

<em>for (int i=0; i<n;i++)</em>

<em>{</em>

<em> weightedavg = weightedavg + (arrtestscore[i] * arrweight[i])</em>

<em>}</em>

<em>cout<<”weighted average = “ <<weightedavg; </em>

3 0
3 years ago
Many languages do not use the characters of U.S. English. Suppose you wanted to be able to encode the characters of every langua
serg [7]
UTF-16 does this. One of the Chinese dialects has 28,000+ characters.
4 0
4 years ago
A personal directory of e-mail addresses stored and maintained with one’s e-mail program
iris [78.8K]

Answer:

It’s a address book

8 0
4 years ago
If a destructive program is running that might be destroying evidence what should be done
Vikentia [17]
The choices can be found elsewhere and as follows:
a. perform an immediate full backup
b. attempt to end the process
c. pull the power cable
d. record the destruction using a video capture of the screen

I think the correct answer is option a. If a destructive program is running that might be destroying evidence, then perform an immediate full backup. 
3 0
3 years ago
When initiating a connection how does tcp establish a connection?
Pani-rosa [81]
It uses a 3-way handshake

1. SYN from client to server.
2. SYN-ACK from server to client.
3. ACK from client to the server.

At this point, both client and server have received an acknowledgement of the connection.

4 0
3 years ago
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