The following are part of characteristics of a software requirement specification.

# q7 - create function readFileFirstLast() to meet the conditions below

MAVERICK [17]

Answer:

See explaination

Explanation:

def readFileFirstLast(filename):

# doc string

''' Function accept the filename and opens the fle

and reads all lines and strips new line character and

stores first and last in a string and return that string'''

#eception handle if file not found

try:

#opening the file

f = open(filename)

#reading the first line and striping the ne line

string = f.readline().strip()

#iterating until last line

for line in f:

pass

#concate the last line after strip the new line character to the string

string = string + " " + line.strip()

#return the string

return string

except:

#if file not found

return "File not found"

#taking the file name from user

filename = input("Enter a file name: ")

#printing the doc string in function

print("\ndoc_sting: \n"+ readFileFirstLast.__doc__+"\n")

#printing the returned string by calling the readFileFirstLast()

print("output string :")

print(readFileFirstLast(filename))

3 0

3 years ago

A device that makes it possible for multiple customers to share one address is called a/n _____.

Debora [2.8K]

When you use the word "address", I assume you are referring to an external address, in which case the answer is NAT (network address translation). Essentially, network address translation converts LAN IP addresses (local IP addresses) to WAN IP addresses (external IP addresses). So for instance: everyone in my home accesses the internet under our network's external IP address. Inside our network, we have local IP addresses, which allow for packets to be routed to our individual machines wirelessly. So let's say my IP address on the LAN is 192.168.1.4, and I want to access brianly.com. My router performs NAT by converting my local IP to an external one which can be used for accessing the web. Then when data comes back to the network from brainly's server, my router once again performs NAT to convert between my external IP to my local IP, so that my router knows where the data needs to be routed to on the LAN.

6 0

3 years ago

Which type of app is the best choice when it is critical to be able to use the device's features but performance is not critical

lisov135 [29]

Answer:

Hybrid.

Explanation:

A software can be defined as a set of executable instructions (codes) or collection of data that is used typically to instruct a computer on how to perform a specific task and solve a particular problem.

A software development life cycle (SDLC) can be defined as a strategic process or methodology that defines the key steps or stages for creating and implementing high quality software applications. There are seven (7) main stages in the creation of a software and these are; planning, analysis, design, development (coding), testing, implementation and execution, and maintenance.

Some of the models used in the software development life cycle (SDLC) are;

I. A waterfall model: it can be defined as a process which involves sequentially breaking the software development into linear phases. Thus, the development phase takes a downward flow like a waterfall and as such each phase must be completed before starting another without any overlap in the process.

II. An incremental model: it refers to the process in which the requirements or criteria of the software development is divided into many standalone modules until the program is completed.

III. A spiral model: it can be defined as an evolutionary SDLC that is risk-driven in nature and typically comprises of both an iterative and a waterfall model. Spiral model of SDLC consist of these phases; planning, risk analysis, engineering and evaluation.

Basically, softwares are categorized into three (3) main categories based on the development platform and these are;

a. Web application.

b. Native application.

c. Hybrid application.

A hybrid application is a type of software application that is designed based on the combination of the elements of both web applications and native applications.

Typically, a hybrid application is a web application that is developed in a native application shell, using a standardized web programming language such as CSS, JavaScript, and HTML.

Generally, a hybrid application avails a programmer the opportunity to write a code for a mobile application once while accommodating or being compatible with multiple app platforms such as Android, Windows, iOS, etc.

Hence, a hybrid application is the best choice of an application when it's critical for the end users to be able to use the features associated with a device such as a mobile phone but performance isn't critical.

4 0

3 years ago

Where must virtualization be enabled for VM (virtual machine) software to work?

Lelu [443]

Answer:

b) BIOS/UEFI

Explanation:

Virtualization can be defined as a technique used for the creation of a virtual platform such as a storage device, operating system, server, desktop, infrastructure or computing resources so as to enable the sharing of resources among multiple end users. Virtualization is usually implemented on a computer which is referred to as the "host" machine.

Generally, virtualization must be enabled in the BIOS/UEFI for VM (virtual machine) software to work.

BIOS is an acronym for Basic Input/Output System while UEFI is an acronym for Unified Extensible Firmware Interface. BIOS/UEFI are low-level software that serves as an intermediary between the operating systems and the computer's firmware or hardware components. The UEFI is actually an improvement of the BIOS and as such is a modernized software.

Basically, the BIOS/UEFI is a software which is an essential tool or feature which must be enabled to link the virtual machine with the hardware components of the computer.

5 0

3 years ago

What OC level is primarily used as a regional isp backbone, and occasionally by very large hospitals, universities, or other maj

Neporo4naja [7]

The OC level is primarily used as a regional ISP backbone, and occasionally by very large hospitals, universities, or other major enterprises is <u>OC-48.</u>

<u></u>

<h3>What is the greatest amount of throughput provided by an OC 12?</h3>

OC-12 is a network line with communication speeds of up to 622.08 Mbit/s (payload: 601.344 Mbit/s; overhead: 20.736 Mbit/s). OC-12 lines are generally used by ISPs as wide area network (WAN) connections.

<h3>When using frame relay What is the appellation of the identifier?</h3>

A data-link connection identifier (DLCI) determines the Frame Relay PVC. Frames are routed through one or more virtual circuits determined by DLCIs.

Each DLCI has a permanently configured switching path to a particular destination

To learn more about OC level , refer

brainly.com/question/25899244

#SPJ4

<u></u>

5 0

2 years ago