Andres Weekly 0412

What year was the first iPhone released?

• 2005

• 2007

• 2009

• 2010

Answer explanation

Introduced in 2007 by the famous Steve Jobs, it was the beginning of the modern era of smartphones with the first touch-oriented mobile system for end users.

There were other mobile phones with touch screens but no one that important and with the wide reach of the iPhone.

Who is known as the "Father of the Computer"?

• Alan Turing

• John von Neumann

• Tim Berners-Lee

• Charles Babbage

Answer explanation

Charles Babbage is known as the 'Father of the Computer' for his design of the Analytical Engine, a mechanical general-purpose computer, which laid the groundwork for modern computing.

What does the acronym DDoS stand for?

• Distributed Denial of Service

• Digital Data of Security

• Denial Distributed of Service

• Data Distribution on Servers

Answer explanation

A DDoS attack overloads a server or network with traffic from multiple sources, causing a denial of service to legitimate users.

DoS vs DDoS

A distributed denial-of-service attack is a subcategory of the more general denial-of-service (DoS) attack. In a DoS attack, the attacker uses a single internet connection to barrage a target with fake requests or to try and exploit a cybersecurity vulnerability. DDoS is larger in scale. It utilizes thousands (even millions) of connected devices to fulfill its goal. The sheer volume of the devices used makes DDoS much harder to fight.

Which layer of the OSI model is responsible for routing packets?

• Routing

• Network

• Transport

• Guiding

Answer explanation

The Network layer (Layer 3) is responsible for packet forwarding, including routing through routers.

Nowadays TCP/IP model is the one primarily used due to its simplicity (7 vs 4 layers). The OSI model is still important as a theoretical framework.

What does the exactly ping command test?

• Bandwidth

• Latency

• DNS Resolution

• Packet Loss

Answer explanation

The ping command primarily tests latency, which is the time it takes for a packet to travel from the source to the destination and back. It does not measure bandwidth, DNS resolution, or packet loss directly.

What is the primary advantage of serverless computing?

• Unlimited storage

• Cost less each server

• No need to manage infrastructure

• Open-source by default

Answer explanation

The primary advantage of serverless computing is that it eliminates the need to manage infrastructure. This allows developers to focus on writing code and deploying applications without worrying about server maintenance.

What does the acronym "SaaS" stand for?

• Salsa as a Service

• Server as a Service

• Solution as a Service

• Software as a Service

Answer explanation

The acronym "SaaS" stands for "Software as a Service." It refers to a cloud computing model where software applications are delivered over the internet, allowing users to access them without installation.

(I prefer salsa.)

Which of these is NOT a Linux distribution?

• Fedora

• Fatdog64

• Cucumber Linux

• Solaris

Answer explanation

Solaris is not a Linux distribution; it is a Unix-based operating system developed by Sun Microsystems. In contrast, Fedora and Fatdog64 are both Linux distributions, while Cucumber Linux is a lesser-known variant.

What is the main purpose of the Windows Task Manager?

• To uninstall applications

• To manage system processes

• To fix users' personal problems

• To scan for viruses

Answer explanation

Tricks:

Use Ctrl + Shift + Esc to instantly open the Task Manager

Use Windows + L to easily lock your user before you go

Use Alt + F4 to earn 1 million in Bitcoin

Which programming language is primarily used for developing iOS apps?

• Java

• Python

• Swift

• A++

Answer explanation

Swift is the primary programming language for developing iOS apps, designed by Apple for this purpose. Java and Python are not typically used for iOS development, and A++ is the grade you should get in this test.