2.3.5 Lesson Review - Q&A

Q1. You are an IT technician tasked with setting up a legacy network switch that only has a serial console port for configuration. You need to connect your modern laptop, which lacks a serial port, to this switch for initial setup. Which of the following solutions would BEST allow you to achieve this task?

• Use an Ethernet cable to connect the laptop's Ethernet port to the switch's serial console port.
• Use an HDMI to Serial adapter to connect the laptop's HDMI port to the switch's serial console port.
• Use a USB to Serial adapter to connect the laptop's USB port to the switch's serial console port. ✓
• Use a VGA to Serial adapter to connect the laptop's VGA port to the switch's serial console port.

Q2. A support technician needs to connect the USB port on a portable monitor to an HDMI port on a laptop to extend the laptop's display. What kind of cable should the technician use to accomplish this?

• SCSI
• EIDE
• Adapter ✓
• DVI

Q3. Why are adapter cables important when integrating legacy devices with modern systems?

• They allow legacy devices to connect to modern systems by converting incompatible interfaces. ✓
• They are used to upgrade the firmware of legacy devices to be compatible with modern systems.
• They increase the data transfer rate between legacy and modern devices.
• They ensure that legacy devices can operate at the same speed as modern devices.

Q4. You are troubleshooting a display issue in an office where an older desktop computer is connected to a monitor using a DVI cable. The monitor occasionally displays a "No Signal" message. Upon inspection, you notice that the computer's graphics card has both DVI and VGA ports, and the monitor supports both DVI and VGA inputs. Which of the following analyses BEST identifies the potential cause of the issue and suggests an appropriate solution?

• The monitor's resolution might be set too high for the DVI connection; lower the resolution to match VGA standards.
• The monitor might not support digital signals; switch to using a VGA cable to ensure compatibility.
• The DVI cable might be faulty; try replacing it with a new DVI cable to see if the issue persists. ✓
• The graphics card might not support dual-link DVI; check the DVI cable type and replace it with a single-link DVI cable if necessary.

Q5. Which of the following statements is true about adapter cables?

• Adapter cables are used to enhance the speed of data transmission between devices.
• Adapter cables are only used for connecting audio devices.
• Adapter cables are primarily used to connect two devices with the same type of ports.
• Adapter cables are used to convert signals from one type of interface to another. ✓

Q6. Which of the following statements BEST describes the function and characteristics of a serial port?

• A serial port uses a 15-pin interface and is primarily used for connecting video devices to computers.
• A serial port supports high-speed data transmission rates similar to USB and is widely used in modern computing for connecting external modems.
• A serial port transmits data one bit at a time over a single wire and is commonly used for connecting modern USB devices.
• A serial port is a legacy connection interface that transmits data one bit at a time over a single wire and is known as Recommended Standard #232 (RS-232). ✓

Q7. Which of the following statements accurately describes a key difference between DVI and VGA video cables?

• VGA cables are designed for digital flat-panel displays, whereas DVI cables are used for cathode ray tube (CRT) monitors.
• Both DVI and VGA cables are actively developed and commonly found on modern display devices.
• DVI cables support both video and audio transmission, whereas VGA cables support only video.
• DVI cables can support both analog and digital signals, while VGA cables support only analog signals. ✓

Q8. You are an IT professional tasked with connecting an older projector to a modern laptop for a presentation. The projector only has a VGA input, while the laptop has a DVI output. Which of the following solutions would BEST allow you to connect the two devices?

• Use a VGA to HDMI converter to connect the projector's VGA input to the laptop's DVI output.
• Use a DVI to HDMI adapter to connect the laptop's DVI output to the projector's VGA input.
• Use a VGA cable directly to connect the laptop's DVI output to the projector's VGA input.
• Use a DVI to VGA adapter to connect the laptop's DVI output to the projector's VGA input. ✓

Q9. You are an IT professional tasked with setting up a conference room that includes both modern digital projectors and older analog video equipment. You notice that the older equipment only has VGA ports, while the projectors have HDMI inputs. Which solution would BEST address the connectivity issue using adapter cables?

• Use a VGA to HDMI adapter cable to connect the older equipment to the projectors. ✓
• Use an HDMI to VGA adapter cable to connect the projectors to the older equipment.
• Use an HDMI to HDMI cable to connect the projectors to the older equipment.
• Use a VGA to VGA cable to connect the older equipment directly to the projectors.

Q10. A support technician manages digital displays but has some older computers with video cards that can support both analog and digital monitors. What type of video interface do these older computers have?

• HDMI
• DVI ✓
• DisplayPort
• VGA