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3 years ago

Please I need all the help I can get Thank You So Much

Computers and Technology

1 answer:

Katen [24]3 years ago

7 0

1-A database is an organized collection of data, generally stored and accessed electronically from a computer system (2 choice)

2 - All of the above

3-record

4- B i think

I hope this helped. :D

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You need to prevent the use of tftp through your firewall. which port would you block?

xz_007 [3.2K]

Hello Huber5598 

Question: You need to prevent the use of tftp through your firewall. which port would you block?

Answer: You should block UDP port 69 to block TFTP

I Hope This Helps You :-)
-Chris

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3 years ago

Directions. Read and analyze the sentences below. There are words or phrases to be corrected. Rewrite it on the blank accrording

devlian [24]

Full question attached

Answer and Explanation:

1. There’s need to ask for help and advice from people who have the

knowledge and skills in making a simple electrical gadget.

2. Adapter is used to plug appliances that are far from the main power source.

3. Do not touch the metal pipes while you are doing electrical repairs.

4. Shut off the power at the main switch or circuit breaker and unplug the equipment when working on electricity.

5. Pliers are tools used to grip, pull or cut electric wires.

From the above, we have corrected some of the errors that could be made in everyday home appliances or home electricity. In number 4, it is also worthy of note that shutting off power at the main switch will only require emergency situations otherwise we need only shut off the one for the problem circuit and leave the rest.

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3 years ago

Determine whether or not the following pairs of predicates are unifiable. If they are, give the most-general unifier and show th

Evgen [1.6K]

Answer:

a) P(B,A,B), P(x,y,z)

=> P(B,A,B) , P(B,A,B}

Hence, most general unifier = {x/B , y/A , z/B }.

b. P(x,x), Q(A,A)

No mgu exists for this expression as any substitution will not make P(x,x), Q(A, A) equal as one function is of P and the other is of Q.

c. Older(Father(y),y), Older(Father(x),John)

Thus , mgu ={ y/x , x/John }.

d) Q(G(y,z),G(z,y)), Q(G(x,x),G(A,B))

=> Q(G(x,x),G(x,x)), Q(G(x,x),G(A,B))

This is not unifiable as x cannot be bound for both A and B.

e) P(f(x), x, g(x)), P(f(y), A, z)

=> P(f(A), A, g(A)), P(f(A), A, g(A))

Thus , mgu = {x/y, z/y , y/A }.

Explanation:

Unification: Any substitution that makes two expressions equal is called a unifier.

a) P(B,A,B), P(x,y,z)

Use { x/B}

=> P(B,A,B) , P(B,y,z)

Now use {y/A}

=> P(B,A,B) , P(B,A,z)

Now, use {z/B}

=> P(B,A,B) , P(B,A,B}

Hence, most general unifier = {x/B , y/A , z/B }

b. P(x,x), Q(A,A)

No mgu exists for this expression as any substitution will not make P(x,x), Q(A, A) equal as one function is of P and the other is of Q

c. Older(Father(y),y), Older(Father(x),John)

Use {y/x}

=> Older(Father(x),x), Older(Father(x),John)

Now use { x/John }

=> Older(Father(John), John), Older(Father(John), John)

Thus , mgu ={ y/x , x/John }

d) Q(G(y,z),G(z,y)), Q(G(x,x),G(A,B))

Use { y/x }

=> Q(G(x,z),G(z,x)), Q(G(x,x),G(A,B))

Use {z/x}

=> Q(G(x,x),G(x,x)), Q(G(x,x),G(A,B))

This is not unifiable as x cannot be bound for both A and B

e) P(f(x), x, g(x)), P(f(y), A, z)

Use {x/y}

=> P(f(y), y, g(y)), P(f(y), A, z)

Now use {z/g(y)}

P(f(y), y, g(y)), P(f(y), A, g(y))

Now use {y/A}

=> P(f(A), A, g(A)), P(f(A), A, g(A))

Thus , mgu = {x/y, z/y , y/A }.

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3 years ago

She wants to sort the list based on the names of the first four gas in ascending order. Which command group dose she navigate to

zubka84 [21]

Best method to sort data:

Best method to sort for data people use excel sheet. If we have 4 quarter sales data of each select man wise.

1. Open the MS Excel

2. Create blank sheet

3. Create list of salesman and quarter sales in each cells from A1….

4. Select all whole worksheet and paste it the data

5. Once data is copied, custom list is created and select advanced options dialog box, select required field and sorting is achieved.

This is simple’s method for sort the list based on the names of the first four gas in ascending order.

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3 years ago

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There are some network modeling tools that can ________ the existing network.

lesya [120]

There are some network modeling tools that can scan the existing network.

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3 years ago

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