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2 years ago

Role and responsibility of an IT professional

Computers and Technology

1 answer:

RUDIKE [14]2 years ago

4 0

Create the computer, network, and communication systems that an organization needs

You might be interested in

How many possible password of length four to eight symbols can be formed using English alphabets both upper and lower case (A-Z

Fynjy0 [20]

Answer:

In a password, symbol/characters can be repeated. first calculate the total

symbols which can be used in a password.

So there are total 26(A-Z),26(a-z),10(0-9) and 2(_,$) symbols.

that is equal to 26+26+10+2=64.

Total number of password of length 4:

here at each place can filled in total number of symbols i.e 64 way for each

place.Then total number of possible password is:

64*64*64*64=16777216

Total number of password of length 5:

here at each place can filled in total number of symbols i.e 64 way for each

place.Then total number of possible password is:

64*64*64*64*64=1073741824

Similarly,

Total number of password of length 6:

64*64*64*64*64*64=68719476736

Total number of password of length 7:

64*64*64*64*64*64*64=4398046511104

Total number of password of length 8:

64*64*64*64*64*64*64=281474976710656

Hence the total number of password possible is:285,942,833,217,536

7 0

3 years ago

Which of the following is used to allocate memory for the instance variables of an object of a class?1. the reserved word public

kodGreya [7K]

Answer:

The correct answer to the following question will be 2. the operator new.

Explanation:

New operator is used to allocating the memory to the instance object.The new object can be created by using a "new" keyword in java .

Syntax of using 'new' operator is :

class_name object_name=new class_name() // it allocated the memory to the class

For Example :

ABC obj = new ABC;

Now, this time obj points to the object of the ABC class.

obj = new ABC ();

call the construction of ABC class

3 0

3 years ago

Your app needs to store the following information. For each type of information, decide whether you would use an array or a vari

Virty [35]

Answer:

Array: (a) All the messages a user has sent.

Variable: (b) The highest score a use has reached on the app. (c) A username and password to unlock the app.

Explanation:

An array generally has more than one value whereas a variable can only contain a single value at any particular point in time. In addition, a variable has a limit whereas an array does not have any maximum limit. Therefore, it can be concluded that option (a) will be stored as an array while options (b) and (c) will be stored as variables.

3 0

3 years ago

A design was operating at a maximum clock frequency of f and the clock had no jitter. if the clock started to have jitter of t s

docker41 [41]

A design was operating at a maximum clock frequency of f and the clock had no jitter. if the clock started to have jitter of t secs, what will be the new frequency?

4 0

3 years ago

Andrew is researching a new operating system for the computers at his workplace. His boss wants the computers to be able to conn

Bumek [7]

Answer:

Windows 8.1 Core

Explanation:

In this particular example, we're going to use Windows 8.1 Core, is the most basic of the window's family, in this case, only we need an OS to connect the hardware with the cloud computing for security and is not necessary another license, in addition, Windows 8.1 core is easiest to use, is so friendly with the user.

6 0

3 years ago