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2 years ago

Which of the following is true of how packets are sent through the internet?

Computers and Technology

2 answers:

lara [203]2 years ago

6 0

I think the answer is A

horrorfan [7]2 years ago

3 0

Answer:

It is A: Packet metadata is used to route and reassemble information travelling through the internet.

Explanation:

Step 1: The Internet works by chopping data into chunks called packets. Each packet then moves through the network in a series of hops. Each packet hops to a local Internet service provider (ISP), a company that offers access to the network -- usually for a fee

Step 2: Entering the network

Each packet hops to a local Internet service provider (ISP), a company that offers access to the network -- usually for a fee.

Step 3: Taking flight

The next hop delivers the packet to a long-haul provider, one of the airlines of cyberspace that quickly carrying data across the world.

Step 4: BGP

These providers use the Border Gateway Protocol to find a route across the many individual networks that together form the Internet.

Step 5: Finding a route

This journey often takes several more hops, which are plotted out one by one as the data packet moves across the Internet.

Step 6: Bad information

For the system to work properly, the BGP information shared among routers cannot contain lies or errors that might cause a packet to go off track – or get lost altogether.

Last step: Arrival

The final hop takes a packet to the recipient, which reassembles all of the packets into a coherent message. A separate message goes back through the network confirming successful delivery.

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A windows host sends a tcp segment with source port number 1200 and destination port number 25. the sending host is a(n) _______

tigry1 [53]

Email client as port 25 is the default port for an email server.

6 0

2 years ago

Write an expression that will cause the following code to print "I am a teenager" if the value of userAge is less than 20. Zyboo

VikaD [51]

Answer:

Replace

if userAge > 20

with

userAge > 19

Explanation:

if userAge > 20 checks if age is 21, 22, 23, 24........

The else condition which prints "I am a teenager" checks if age is 20, 19, 18....

Notice that 20 is inclusive of the else condition; this shouldn't be because for userAge to be less than 20, 20 isn't inclusive

To solve this,

Replace if userAge > 20 with userAge > 19

So that, the else

The else condition which prints "I am a teenager" checks if age is 19, 18, 17, 16....

6 0

2 years ago

Define a function compute_gas_volume that returns the volume of a gas given parameters pressure, temperature, and moles. Use

jeyben [28]

Question:

Define a function compute_gas_volume that returns the volume of a gas given parameters pressure, temperature, and moles. Use the gas equation PV = nRT, where P is pressure in Pascals, V is volume in cubic meters, n is number of moles, R is the gas constant 8.3144621 ( J / (mol*K)), and T is temperature in Kelvin.

Answer:

This solution is implemented in C++

double compute_gas_volume(double P, double T, double n){

double V = 8.3144621 * n * T/P;

return V;

}

Explanation:

This line defines the function, along with three parameters

double compute_gas_volume(double P, double T, double n){

This calculates the volume

double V = 8.3144621 * n * T/P;

This returns the calculated volume

return V;

}

To call the function from the main, use:

cout<<compute_gas_volume(P,T,n);

Where P, T and n are double variables and they must have been initialized

5 0

2 years ago

Which of the following statements regarding critical paths is true? a. On a specific project, there can be multiple critical pat

iVinArrow [24]

Answer:

Option a

Explanation:

The Critical Path Method is the arrangement of booked exercises that decides the term of the task. These planned exercises must be performed if the venture is to be viewed as a triumph.

Therefore, options b, c, d and e can't be true because:

b. Activities in the Critical Path Method has no or zero slack.

c. The duration of the critical path in CPM determined on the basis of the latest activity and the earliest initiation.

d. The CPM method schedules the activity of the longest duration.

7 0

2 years ago

A feature on a new computer with Windows preinstalled. When you take it out of the box and turn it on, you will be greeted with

BlackZzzverrR [31]

Answer:

Explanation:

In the newer versions of windows, there are a variety of sign-in methods, these include facial recognition, fingerprint scanner, username & password, or Microsoft email sign in. The choice is yours at the end of the Out-of-box experience which is the entire setup experience that the consumer has when first preparing the new windows installation on the computer that they have. Some of the options may require additional hardware on your PC such as a fingerprint scanner or a webcam for facial recognition.

6 0

2 years ago