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attashe74 [19]
3 years ago
15

Describe the main roles of the communication layer, the network-wide state-management layer, and the network-control application

layer in an SDN controller.
Computers and Technology
1 answer:
mylen [45]3 years ago
6 0

Answer:

1.

Role of communication layer:

-it has the responsibility of transferring information among network controlled devices.

-it provides up to date view of the state of the network to SDN controller which shows that a new device has being added to the network as well as the link that was attached being non-existent.

2.

Role of network wide state management layer:

-it is responsible for the controller having the network's state information

-it also helps in the making of ultimate control decisions.

c

role of network control application layer:

- It is responsible for the reading and also the writing of the state of the network as well as flow tables which are in the layer of state management.

- It also notifies of changes such as state-event change. this helps to take actions with regards to the event notification.

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5. JAVA makes use of checkConversion instead of convertNumber as used in the program.

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Explanation:

See Answer for the detailed explaination of the flaws and limitations identified in the program.

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Consider the following JavaScript program:
dem82 [27]

Answer:

Variable       Where Declared

In Sub1 :

        A        Sub1

        Y        Sub1

        Z        Sub1

        X        Main

In Sub2:

        A        Sub2

        B        Sub2

        Z        Sub2

        Y        Sub1

        X        Main

In Sub3 :

        A        Sub3

        X        Sub3

        W       Sub3

        Y        Main

        Z        Main

Explanation:

In static-scoped languages with nested subprograms, the declaration of a variable is checked with the subprogram, if it is not found, it check within the parent method that called it, it continue until it find a declaration, if no declaration is found, it display an error.

In Sub1, a, y, z is declared there while the declaration of x is found in main.

In Sub2, a, b, z is declared, declaration of y is found in sub1 and declaration of x is found in main.

In Sub3, a, x, w is declared while the declaration of y, z is from the main.

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Answer:

The correct answer to the following question will be Group Box.

Explanation:

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