Getting Started with Node
So, in this section, you learned that:
– Node is a runtime environment for executing JS code.
– Essentially, Node is a C++ program that embeds Chrome’s v8 engine, the fastest
JS engine in the world.
– We use Node to build fast and scalable networking applications. It’s a perfect
choice for building RESTful services.
– Node applications are single-threaded. That means a single thread is used to
serve all clients.
– Node applications are asynchronous or non-blocking by default. That means
when the application involves I/O operations (eg accessing the file system or the
network), the thread doesn’t wait (or block) for the result of the operation. It is
released to serve other clients.
– This architecture makes Node ideal for building I/O-intensive applications.
– You should avoid using Node for CPU-intensive applications, such as a video
encoding service. Because while executing these operations, other clients have
to wait for the single thread to finish its job and be ready to serve them.
– In Node, we don’t have browser environment objects such as window or the
document object. Instead, we have other objects that are not available in
browsers, such as objects for working with the file system, network, operating
system, etc.
So, in this section, you learned that:
– Node is a runtime environment for executing JS code.
– Essentially, Node is a C++ program that embeds Chrome’s v8 engine, the fastest
JS engine in the world.
– We use Node to build fast and scalable networking applications. It’s a perfect
choice for building RESTful services.
– Node applications are single-threaded. That means a single thread is used to
serve all clients.
– Node applications are asynchronous or non-blocking by default. That means
when the application involves I/O operations (eg accessing the file system or the
network), the thread doesn’t wait (or block) for the result of the operation. It is
released to serve other clients.
– This architecture makes Node ideal for building I/O-intensive applications.
– You should avoid using Node for CPU-intensive applications, such as a video
encoding service. Because while executing these operations, other clients have
to wait for the single thread to finish its job and be ready to serve them.
– In Node, we don’t have browser environment objects such as window or the
document object. Instead, we have other objects that are not available in
browsers, such as objects for working with the file system, network, operating
system, etc.

“Encrypt everything to ensure your information!” is a typical exhortation from information protection and security groups nowadays. In any case, there are parcel of worries about the information encryption. By and by, I am against encoding everything, except touchy information ought to consistently be Encrypted with the exception of when it is being processed*, for example utilized by an application, which requires plaintext information
 
Should the information be Encrypted? Assuming this is the case, what information ought to be Encrypted?
 
Strong user passwords or credit card data in a database in plain content is a major issue. It seems like normal that you’d encrypt that data yet very regularly it’s left all the way open or feebly Encrypted. Weak encryption isn’t much superior to no encryption. To the naked eye you can’t peruse the information, however on the off chance that the assailant can download the Encrypted information, they have a lot of time to split the encryption later on. A few organizations don’t utilize any sort of encryption when sending classified information over open and non-made sure about systems. This implies a snooper on that hotspot can block all decoded transmitted information, including passwords. There is then a likelihood that the snooper can utilize those caught accreditations to sign into the organization’s business frameworks, distributed storage or intranets. To prevent exposure of delicate corporate information to unapproved individuals in current situation, information should be made secured.
 
Difficulties with complete information encryption:
 
Probably the greatest test with automated encryption is the capacity and recovery of the mystery key which must be utilized to open the information. That solitary key must be a worth comprehensible by your product yet ought to be difficult to get to by any other individual. When utilizing solid encryption, this is the weak point.

1. Create an IT functional organizational model diagram (Block diagram). Secondly, use the following tables to describe each core functional and at least three associated sub-functional areas. Define the services provided by each functional area and the total staffing complement for the IT Organization.

2. IT Organization Staffing Matrix: use the following tables to outline the staffing needs for each of the IT organization by core functional areas. Define at least three IT Job Titles for each core functional area.