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Lyrx [107]
2 years ago
9

What type of servers are used to store recently accessed DNS records from other domains to avoid incurring the performance overh

ead involved in making a remote query each time a resource outside the local domain is accessed?
A) Name resolvers
B) Primary DNS servers
C) Subdomains
D) Caching servers
Computers and Technology
1 answer:
Kruka [31]2 years ago
8 0

The correct answer is B. Primary DNS Server.

DNS records are type of data that is equivalent to IP address where the website or domain is located.  DNS records are normally stored in DNS server in a raw or flat file. A host, using port number 53 will send a DNS request to the server. If the computer has stored it's data or record in it's database, it will automatically reply to the requesting host. Example: You typed in www.website.com, if you have a matching DNS record in your server, using an IP address, your server will reply and display the website.

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Computer simulations were first developed during __________<br> as a part of the _____________
Effectus [21]

Answer:

WWII; Manhattan Project.

Explanation:

Computer simulation refers to a mathematical model designed and developed to predict the outcome or behavior of a hypothetical or real-life scenario on a computer system, so as to illustrate and understand how the system functions.

Historically, computer simulations were first developed during World War II (WWII) as a part of the Manhattan Project.

For example, SimpleScalar refers to a computer architectural simulating software application or program which was designed and developed by Todd Austin at the University of Wisconsin, Madison, United States of America. It is an open source simulator written with "C" programming language and it's used typically for modelling virtual computer systems having a central processing unit (CPU), memory system parameters (hierarchy), and cache.

6 0
2 years ago
Each row in a database is a set of unique information called a(n) (A.)table,(B.)record,(C.)object,(D.)field
sashaice [31]

Answer:

-------------------------######################

4 0
3 years ago
Read 2 more answers
Consider a file system that uses inodes to represent files. Disk blocks are 2KB in size and a pointer to a disk block requires 4
deff fn [24]

Answer:

a.  Maximum size of file = 8.003 GB

Explanation:

<u>a. Maximum size of file</u>

= (6 * 2 KB) + (2048 * 2 KB) + (2048 * 2048 * 2 KB)

= 12kb + 4096 Kb +  8388608 kb

= 8392716 kb

8392716/1024 mb = 8196.01 MB

8196.01 /1024 GB= 8.003 GB

<u>b. According to above calculation</u>

For 8 GB 6 direct, 1 single and 1 double indirect block requires

so

for 32 GB

24 direct Block

4 single and 4 double indirect block requires

7 0
3 years ago
Several of the items below indicate the steps required to move a slide to a different location in a presentation. Select those s
Llana [10]

Answer:

1 - Select the slide you want to move

2- Hold down the mouse button

3- Drag the slide where you want it

4 - NA

5- NA

6- NA

Explanation:

1 - Select the slide you want to move

it allows us to select the slide which we want to move by just clicking left mouse button

2- Hold down the mouse button

it allows the selected slide to stick with cursor

3- Drag the slide where you want it

It allows the slide stick with the cursor to drag it by moving the cursor to the required position

4 - NA (Choose move from the toolbox menu)

There is on toolbox against the slide as toolboxes are only available within a slide that is what we are writing on the slides

5- NA (Enter the slide position you want)

There is no command line in which we may enter the slide position to move the slide to a different serial number

6- NA (Switch to the Notes view)

Switching to notes view allows us to write notes with the corresponding slide whereas it doesn't do anything related to moving the slide

5 0
3 years ago
As you apply to college when should you apply for financial aid
Nataliya [291]

Answer:

after you are accepted in the college

Explanation:

You should apply for admission to the colleges you are interested in BEFORE filing your FAFSA. Once you are accepted to the colleges you have applied to, you can add those schools to receive financial aid award offers from when you file your FAFSA.

4 0
3 years ago
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