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3 years ago

Heeeeeeeeeeeeeeeeeeeeeeeeelp pat.2

Computers and Technology

1 answer:

masya89 [10]3 years ago

8 0

Answer: B

Explanation:

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It creates an SQL statement to find the project that has the most employees from the same department. If more than one project m

NARA [144]

Answer:

Check the explanation

Explanation:

As per requirement submitted above kindly find below solution.

This demonstration is using SQL Server.

Table Names used as

department

project

works_on

SQL query :

select proj_name,dept_name,count(emp_no) as 'most employees ' from

project,department,works_on

where

project.proj_no=works_on. proj_no and

department. dept_no=works_on. dept_no

group by proj_name,dept_name

having count(emp_no)=(

select max(empCount) from (

select proj_name,dept_name,count(emp_no) empCount from project,department,works_on where project. proj_no=works_on. proj_no and department. dept_no=works_on. dept_no

group by proj_name,dept_name) as emp);

6 0

3 years ago

A large population of ALOHA users manages to generate 50 requests/sec, including both originals and retransmissions. Time is slo

krok68 [10]

Answer:

The answer is below

Explanation:

Given that:

Frame transmission time (X) = 40 ms

Requests = 50 requests/sec, Therefore the arrival rate for frame (G) = 50 request * 40 ms = 2 request

a) Probability that there is success on the first attempt = $e^{-G}G^k$ but k = 0, therefore Probability that there is success on the first attempt = $e^{-G}=e^{-2}=0.135$

b) probability of exactly k collisions and then a success = P(collisions in k attempts) × P(success in k+1 attempt)

P(collisions in k attempts) = [1-Probability that there is success on the first attempt]^k = $[1-e^{-G}]^k=[1-0.135]^k=0.865^k$

P(success in k+1 attempt) = $e^{-G}=e^{-2}=0.135$

Probability of exactly k collisions and then a success = $0.865^k0.135$

c) Expected number of transmission attempts needed = probability of success in k transmission = $e^{G}=e^{2}=7.389$

6 0

3 years ago

. Hackers generally disguise their IP address. True False

maw [93]

I think that's true.
If they didn't they could be easily tracked by the police.

4 0

3 years ago

Just answer in five-line. Question:

Eddi Din [679]

Answer:

It is a half-duplex serial transmission mode, and this can be provided through the RS-485 two wired electrical interface. And this can be connected to the ethernet if required, connect to the LAN, and finally transmitting the video footage to all the screens. And the two reasons are:

1. Noiseless

2. Allows around 32 receivers.

Explanation:

Please check the answer.

3 0

2 years ago

Chris is working with other employees on a worksheet. the other employees have made comments, but they are not visible.

andriy [413]

Answer:

a. select show all comments on the review tab

Explanation:

Please mark me brainliest if correct

7 0

2 years ago