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makvit [3.9K]
2 years ago
13

While accessing mail through the mail command interface, a user sees 5 new messages in his mailbox. Since the second message app

ears important, he would like to read that message first. Which mail command should be used
Computers and Technology
1 answer:
RUDIKE [14]2 years ago
7 0

Answer:

The answer is "print 2".

Explanation:

The mail command, which is also known as the return path, bounce address, as well as mfrom, and sends the back address. This command is used to set the message receiver, order RCPT. It's also composed of the message for the header, and it is the empty line of the message body, and in this command to read the second message we use the print 2 message.

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Insert XXX to output the student's ID. public class Student { private double myGPA; private int myID; public getID) { return myI
Aleonysh [2.5K]

Answer:

Explanation:

The question above is missing many details and are actually various questions in one. I will answer each one seperately below...

A. The piece of code to get the ID in this code snippet that needs to replace XXX would be the following ... System.out.println("Student ID: " + s.getID());

B. A static main() can declare and create objects. Once these objects are created their instance methods can then be called.

C. Integer score1 = 72;

    int score2 = 85;

    Character grade = 'C';

     In the above code snippet, the information stored in score1, score2, and grade are the following... obj reference, 85, obj reference. This is becasue both Integer and Character are classes and the values being passed to their variables are referencing that object class, while score2 is a primitive type of int and is therefore simply a number.

D. The statement that is true is ... Contents of a Double instance can be modified after initialization. Objects can be modified by calling its setter methods after initializing it.

7 0
2 years ago
In the Stop-and-Wait flow-control protocol, what best describes the sender’s (S) and receiver’s (R) respective window sizes?
kolbaska11 [484]

Answer:

The answer is "For the stop and wait the value of S and R is equal to 1".

Explanation:

  • As we know that, the SR protocol is also known as the automatic repeat request (ARQ), this process allows the sender to sends a series of frames with window size, without waiting for the particular ACK of the recipient including with Go-Back-N ARQ.  
  • This process is  mainly used in the data link layer, which uses the sliding window method for the reliable provisioning of data frames, that's why for the SR protocol the value of S =R and S> 1.
3 0
2 years ago
Units for measuring computer memory
lyudmila [28]

A kilobyte (KB) is 1,024 bytes, not one thousand bytes as might be expected, because computers use binary (base two) math, instead of a decimal (base ten) system. Computer storage and memory is often measured in megabytes (MB) and gigabytes (GB). A medium-sized novel contains about 1 MB of information.

6 0
3 years ago
A file named data.txt contains an unknown number of lines, each consisting of a single integer. Write some code that creates two
dmitriy555 [2]

Answer:

I am doing it with python.

Explanation:

nums = '9 -8 -7 -6 -5 -4 -2 0 1 5 9 6 7 4'

myfile = open('data.txt', 'w')

myfile.write(nums)

myfile.close()

myfile = open('data.txt', 'r')

num1 = (myfile.read())

num1 = num1.split()

print(num1)

print(type(num1))

for x in num1:

   x = int(x)

   if x < 0:

       minus = open('dataminus.txt', 'a')

       minus.write(str(x) + ' ')

       minus.close()

   elif x>= 0:

       plus = open('dataplus.txt', 'a')

       plus.write(str(x)+' ')

       plus.close()

8 0
3 years ago
Read 2 more answers
An “evil twin” in the context of computer security is: a) A virus-laden attachment that looks just like a sincere attachment b)
aleksandr82 [10.1K]

Answer:

A

Explanation:

3 0
3 years ago
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