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natali 33 [55]
2 years ago
10

You have enabled IPv6 on two of your routers, but on the interfaces you have not assigned IPv6 addresses yet. You are surprised

to learn that these two machines are exchanging information over those interfaces. How is this possible?a. Due to anycast addressingb. Due to ICMPv6c. Due to the NATv6 capabilityd. Due to the link-local IPv6 addresses
Computers and Technology
1 answer:
babymother [125]2 years ago
3 0

Answer:

You have enabled IPv6 on two of your routers, but on the interfaces you have not assigned IPv6 addresses yet. You are surprised to learn that these two machines are exchanging information over those interfaces. How is this possible?

a. Due to anycast addressing

b. Due to ICMPv6

c. Due to the NATv6 capability

d. Due to the link-local IPv6 addresses

The correct answer is D. Due to the link-local addresses

Explanation:

LINK-LOCAL ADDRESS

Link-local addresses are addresses that can be used for unicast communications on a confined LAN segment.  The requirement with these addresses is that they are only locally-significant (i.e., restricted to a single LAN broadcast domain) and are never used to source or receive communications across a layer-3 gateway.

Typically, link-local IPv6 addresses have “FE80” as the hexadecimal representation of the first 10 bits of the 128-bit IPv6 address, then the least-significant 64-bits of the address are the Interface Identifier (IID).  Depending on the IID algorithm the node’s operating system is using, the IID may use either modified EUI-64 with SLAAC, the privacy addressing method (RFC 4941)), or the newly published Stable SLAAC IID method(RFC 8064).

When a host boots up, it automatically assigns an FE80::/10 IPv6 address to its interface.  You can see the format of the link-local address below. It starts with FE80 and is followed by 54 bits of zeros. Lastly, the final 64-bits provide the unique Interface Identifier.

FE80:0000:0000:0000:abcd:abcd:abcd:abcd

Link-local IPv6 addresses are present on every interface of IPv6-enabled host and router.  They are vital for LAN-based Neighbor Discovery communication.  After the host has gone through the Duplicate Address Detection (DAD) process ensuring that its link-local address (and associated IID) is unique on the LAN segment, it then proceeds to sending an ICMPv6 Router Solicitation (RS) message sourced from that address.

IPv6 nodes send NS messages so that the link-layer address of a specific neighbor can be found. There are three operations in which this message is used:

▪   For detecting duplicate address

▪   Verification of neighbor reachability

▪   Layer 3 to Layer 2 address resolution (for ARP replacement)  ARP is not included in IPv6 as a protocol but rather the same functionality is integrated into ICMP as part of neighbor discovery. NA message is the response to an NS message.  From the figure the enabling of interaction or communication between neighbor discoveries between two IPv6 hosts can be clearly seen.

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Explanation:

Shape is a base class because circle and squares are the shapes so these are the derived class of the shape, which is inherited by the shape like circle and square. As, the base class (shape) is the class which are derived from the other classes like circle and square and it facilitates other class which can simplified the code re-usability that is inherited from the base class. Base class is also known as parent class and the super class.  

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A sum amounts to ₹2400 at 15% simple interest per annum after 4 years fond the sum.​
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Answer: $1,500

Explanation:

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You would like the user of a program to enter a customer’s last name. Write a statement thaUse the variables k, d, and s so that
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Answer:

1st question:

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Solution:

In Python:

k = input()  #prompts user to input value of k i.e. integer value

d = input()  #prompts user to input value of d i.e. float value

s = input()  #prompts user to input value of s i.e. a string

print (s, d, k)  #displays these variable values in reverse order

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In C++:

#include <iostream>    // to use input output functions

using namespace std;   //to identify objects like cin cout

int main() {    //start of main function

  int k;   //declare int type variable to store an integer value

  float d; //  declare float type variable to store a float value

  string s;   //  declare string type variable to store an integer value

  cin >> k >> d >> s;    //reads the value of k, d and s

  cout << s << " " << d << " " << k << endl;     //displays these variables values in reverse order

  cout << k << " " << d << " " << s << endl;   } // displays these variable values in original order

Explanation:

2nd question:

You would like the user of a program to enter a customer’s last name. Write a statement that asks user "Last Name:" and assigns input to a string variable called last_name.

Solution:

In Python:

last_name = input("Last Name:")

# input function is used to accept input from user and assign the input value to last_name variable

In C++:

string last_name;  //declares a string type variable named last_name

cout<<"Last Name: ";  // prompts user to enter last name by displaying this message Last Name:

cin>>last_name; // reads and assigns the input value to string variable last_name

The programs alongwith their outputs are attached.

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2 years ago
When a visitor clicks the submit button on a form, the ______ of each form element is sent?
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COMPLETE QUESTION

Which of the following is false?

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d. Java uses interfaces to provide the benefits of multiple inheritance

Answer:

B) A super class is object is a subclass object.

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