ICT SKILLS Beltrán Rodríguez

  FIRST PROBLEM Step 1: Convert A4 dimensions from millimeters to inches. 1 inch = 25.4 mm Width:  210 ÷ 25.4 ≈ 8.27 210 ÷ 25.4 ≈ 8.27  in Height:  297 ÷ 25.4 ≈ 11.69 297 ÷ 25.4 ≈ 11.69  in Step 2: Multiply by desired print DPI (200 dpi). Width:  8.27 × 200 ≈ 1654 8.27 × 200 ≈ 1654  pixels Height:  11.69 × 200 ≈ 2338 11.69 × 200 ≈ 2338  pixels Required resolution at 200 dpi:  1654 × 2339 pixels

SECOND PROBLEM SECOND PROBLEM Second problem: Which resolution would the same picture need to have a 300 dpi picture? Step 1: Convert millimeters to inches We know that: 1 inch=25.4 mm1 inch=25.4 mm Convert each dimension: ·                      Width: - 210÷25.4=8.267716535 inches ·                      Height: - 297÷25.4=11.69291339 inches Step 2: Multiply each dimension in inches by the desired resolution (300 dpi) ·                      Width in pixels: - 8.267716535×300=2480.31496 pixels ·                      Height in pixels:...

SECOND PROBLEM My brother always uses public conections, like public libraries or cultural centers, to do his online works. He has an important job and manage sensible information about clients and business. I think this is not a good idea to use public wi-fi connections to do so… What do you think and why… Problem Description Name of the Issue: Using Public Wi-Fi for Sensitive or Confidential Work Definition: Public Wi-Fi refers to free or open wireless internet networks provided in places like libraries, cafés, airports, and cultural centers. These networks are often unsecured , meaning anyone nearby can connect without authentication. Because of this, data sent through these networks can sometimes be intercepted by attackers using relatively simple tools. This exposes sensitive information—such as client data, business documents, passwords, or financial info—to significant risk. Why It’s a Problem Public Wi-Fi is convenient, but not safe for handling sensitive information b...

FIRST PROBLEM I have recently received  emails  and  instant messages that look legitimate at first glance. The se  messages come with URLs that prompt you to input your personal information. In turn,  I think It will  steal  my  credentials and use them to access  my  accounts   and personal data . Problem Name Phishing Attacks Definition Phishing is a type of cyberattack in which criminals send emails, messages, or links that appear legitimate to trick you into revealing sensitive information—such as usernames, passwords, credit card numbers, or other personal data. These messages often mimic trusted companies, banks, social networks, or colleagues and attempt to direct you to a fake website designed to steal your credentials. Reliable Resources to Learn More These are well-known, authoritative cybersecurity resources: U.S. Cybersecurity and Infrastructure Security Agency (CISA) – Phishing guidance https://www.cisa.go...

  EMBID AUDIO AND VIDEO