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soldi70 [24.7K]
3 years ago
8

You want to verify whether a PTR record exists for the Serv2.csmpub.local host, but you don't know the IP address. Which of the

following commands should you use?
a. ping -a Serv2.csmpub.local and then ping IPAddress returned from the first ping
b. nslookup Serv2.csmpub.local and then nslookup IPAddress returned from the first nslookup
c. dnscmd /PTR Serv2.csmpub.local
d. netsh /PTR Serv2.csmpub.local
Computers and Technology
1 answer:
Zielflug [23.3K]3 years ago
7 0

Answer:

b. nslookup Serv2.csmpub.local and then nslookup IPAddress returned from the first nslookup.

Explanation:

That's the best command to use when one wants to verify whether PTR record exists for a Serv2.csmpub.local host

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2 years ago
C++ a. Write a program that uses the function isPalindrome given in example 6-6 (Palindrome). Test your program on the followinn
Whitepunk [10]

Answer:

#include <iostream>

#include <array>

using namespace std;

bool isPalindrome(string str)  

{  

int length = str.length();  

for (int i = 0; i < length / 2; i++)  

 if (toupper(str[i]) != toupper(str[length - 1 - i]))

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return true;  

}

int main()

{

array<string, 6> tests = { "madam", "abba", "22", "67876", "444244", "trymEuemYRT" };

for (auto test : tests) {

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}

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Explanation:

The toupper() addition forces characters to uppercase, thereby making the comparison case insensitive.

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Answer:

#include <iostream>

using namespace std;

int * reverse(int a[],int n)//function to reverse the array.

{

   int i;

   for(i=0;i<n/2;i++)

   {

       int temp=a[i];

       a[i]=a[n-i-1];

       a[n-i-1]=temp;

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int main() {

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   cin>>N;//taking input of size..

   if(N>50||N<0)//if size greater than 50 or less than 0 then terminating the program..

   return 0;

   for(int i=0;i<N;i++)

   {

       cin>>array[i];//prompting array elements..

   }

   arr=reverse(array,N);//function call.

   for(int i=0;i<N;i++)

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Output:-

5

4 5 6 7 8

8

7

6

5

4

Explanation:

I have created a function reverse which reverses the array and returns pointer to an array.I have also considered edge cases where the function terminates if the value of the N(size) is greater than 50 or less than 0.

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Answer:

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