CompTIA 220-1101 Online Practice Questions and Exam Preparation

CompTIA 220-1101 Online Questions & Answers

• Question 91:

  A technician is setting up a printer for a small office that does not have an RJ-45 jack. The users' computers are all in the same workgroup and are connected physically to the same network switch. The technician needs to make sure all users can print to the new printer through the switch. Which of the following should the technician configure?

  A. Shared printer
  B. Print server
  C. Bluetooth printing
  D. Cloud printing
  A. Shared printer

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  Explanation

• Question 92:

  A graphic designer wants to purchase a laptop that provides the most accurate color spectrum available when viewed from as many different angles as possible. Which is the following display types would best meet the graphic designer's requirements?

  A. LCD
  B. Plasma
  C. OLED
  D. VGA
  C. OLED

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  Explanation

  

  Graphic design Explore The correct answer is

  C. OLED. OLED stands for Organic Light-Emitting Diode, and it is a type of display technology that uses organic compounds to create light and color. Unlike LCD (Liquid Crystal Display) or Plasma displays, OLED does not require a backlight or a filter to produce images. This means that OLED can offer higher contrast, wider color gamut, and better viewing angles than other display types. LCD displays use liquid crystals that are sandwiched between two polarizing filters and illuminated by a backlight. The liquid crystals can change their orientation and block or allow light to pass through the filters. LCD displays can have different panel types, such as IPS (In-Plane Switching), VA (Vertical Alignment), or TN (Twisted Nematic), which affect the color accuracy, response time, and viewing angles of the display. Plasma displays use gas-filled cells that are electrically charged to create plasma, which emits ultraviolet light. The ultraviolet light then excites phosphors that emit visible light and color. Plasma displays can produce deep blacks and high contrast, but they are also prone to image retention, screen burn-in, and high power consumption. VGA stands for Video Graphics Array, and it is not a display type but a video interface standard that was introduced in 1987. VGA can transmit analog signals from a computer to a monitor, but it has low resolution and limited color depth compared to modern digital standards such as HDMI or DisplayPort. Therefore, OLED is the best display type for graphic designers who want the most accurate color spectrum and the widest viewing angles. OLED displays can also be thinner and lighter than LCD or Plasma displays, which makes them ideal for laptops. However, OLED displays are also more expensive and less durable than other display types, and they may suffer from image retention or burn-in over time.

• Question 93:

  A technician needs to verify that a newly installed RJ45 was correctly terminated. Which of the following should the technician use?

  A. Wi-Fi analyzer
  B. Network tap
  C. Loopback plug
  D. Toner probe
  E. Punchdown tool
  C. Loopback plug

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  Explanation

  A loopback plug allows a technician to verify that the cable functions as expected by looping the signal back for testing. While a punchdown tool installs cables in a panel, it does not test functionality, and Wi-Fi analyzers and toner probes serve other network diagnostics. This is in line with CompTIA A+ Core 1 objectives for validating cable installation and connectivity.

• Question 94:

  A user on a SOHO network is unable to watch online videos, even at 240 pixels. The technician runs ipconfig from the user's computer and records the following:

  

  The technician then connects a test laptop to the router via the user's Cat 5 cable and records the following information:

  

  Which of the following is MOST likely causing the user's issue?

  A. Incorrect IP address
  B. Faulty NIC
  C. Misconfigured default gateway
  D. Bad network cable
  B. Faulty NIC

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  Explanation

  Based on the information recorded by the technician, the network connection appears to be functioning normally. The user's computer is properly configured with an IPv4 address, subnet mask, and default gateway, which should allow the user to access the internet and online videos. The high download and upload speeds and low ping time recorded from the test laptop also indicate that the network is working well. However, the user's inability to watch online videos suggests that there might be an issue with the network card (NIC) on the user's computer. The NIC might be faulty or malfunctioning, which is preventing the computer from receiving and processing the video data. The technician should try replacing the NIC to resolve the issue.

• Question 95:

  A technician is mitigating threats to web clusters. Which of the following tools is the most appropriate for a technician to use to mitigate unwanted traffic against the web clusters' public-facing interface?

  A. Device encryption
  B. Intrusion detection system
  C. Antivirus/anti-malware
  D. Physical firewall
  D. Physical firewall

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  Explanation

  A physical firewall is a hardware device that filters and blocks unwanted or malicious traffic from entering or leaving a network. A physical firewall can be configured with rules and policies to allow or deny traffic based on various criteria, such as source and destination IP addresses, ports, protocols, applications, etc. A physical firewall can also provide logging and monitoring capabilities to detect and prevent network attacks12. A physical firewall is the most appropriate tool for a technician to use to mitigate threats to web clusters, which are groups of web servers that work together to provide high availability and scalability for web applications. Web clusters are often exposed to the internet and face various types of threats, such as denial-of-service (DoS) attacks, brute force attacks, SQL injection attacks, cross-site scripting (XSS) attacks, etc. A physical firewall can protect the web clusters' public-facing interface by filtering and blocking the unwanted or malicious traffic before it reaches the web servers, thus reducing the risk of compromise or downtime34. The other options are not as effective or relevant as a physical firewall for mitigating threats to web clusters. Device encryption is a process of transforming data into an unreadable form using a secret key, which can prevent unauthorized access to the data if the device is lost or stolen. However, device encryption does not prevent network attacks or filter traffic, and it may not apply to web clusters that use shared storage or cloud services. Intrusion detection system (IDS) is a software or hardware tool that monitors network traffic and alerts the administrator of any suspicious or malicious activity. However, IDS does not block or filter traffic, and it may not be able to prevent or stop an attack in progress. IDS is often used in conjunction with a firewall, not as a replacement. Antivirus/anti-malware is a software tool that scans and removes viruses, worms, trojans, spyware, ransomware, and other malicious software from a device. However, antivirus/antimalware does not filter or block network traffic, and it may not be able to detect or prevent some web-based attacks, such as XSS or SQL injection. Antivirus/anti-malware is also often used in conjunction with a firewall, not as a replacement.

  References: CompTIA A+ Core 1 (220-1101) Certification Study Guide, Chapter 5: Networking, Section 5.4: Network Devices, Page 233 CompTIA A+ Core 1 (220-1101) and Core 2 (220-1102) Exam Cram, Chapter 5: Networking, Section 5.4: Network Devices, Page 197 CompTIA A+ Core 1 (220-1101) and Core 2 (220-1102) Pearson uCertify Course and Labs and Textbook Bundle, Chapter 5: Networking, Section 5.4: Network Devices, Page 234 CompTIA A+ Core 1 (220-1101) and Core 2 (220-1102) Cert Guide, Chapter 5: Networking, Section 5.4: Network Devices, Page 205 CompTIA A+ Core 1 (220-1101) Certification Study Guide, Chapter 9: Security, Section 9.3: Device Security, Page 419 CompTIA A+ Core 1 (220-1101) Certification Study Guide, Chapter

  9: Security, Section 9.4: Network Security, Page 431 CompTIA A+ Core 1 (220-1101) Certification Study Guide, Chapter 9: Security, Section 9.5: Malware and Threats, Page 443

• Question 96:

  When installing three 2.4GHz access points in close proximity, which of the following channel selections would be BEST?

  A. 1, 6, 11
  B. 2, 3, 9
  C. 2, 4, 7
  D. 8, 10, 11
  A. 1, 6, 11

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  Explanation

  https://www.accessagility.com/blog/best-wifi-channel-to-use-for-2.4-ghz#:~:text=For%20best%20results%2C%20it%20is,overlap%20in%20the%20WiFi%20signal

• Question 97:

  Which of the following devices performs forwarding decisions based on MAC addresses?

  A. Switch
  B. Router
  C. Hub
  D. Repeater
  A. Switch

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  Explanation

• Question 98:

  When a PC is turned on, an error indicates that the date and time are wrong. Which of the following is the most likely cause?

  A. Overheating RAM DIMMs
  B. HDD crash
  C. CMOS battery failing
  D. Capacitor swelling
  C. CMOS battery failing

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  Explanation

• Question 99:

  A technician is installing a storage solution for a computer that requires data redundancy with the fewest drives possible. Which of the following would best meet this requirement?

  A. RAID O
  B. RAID 1
  C. RAID 5
  D. RAID 10
  B. RAID 1

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  Explanation

• Question 100:

  A user arrives at the office and is unable to access the company's network on a smartphone. The user enables Wi-Fi on the smartphone, but it only shows the 5G symbol.

  Which of the following device settings should the user configure to fix this issue?

  A. Autoconnect
  B. VPN
  C. Encryption
  D. WPS
  A. Autoconnect

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  Explanation

  If the smartphone is showing a 5G symbol, it is connected to a cellular network rather than Wi-Fi. Enabling Autoconnect ensures the device automatically connects to the company Wi-Fi when in range, resolving the issue.

  Why Not B (VPN): VPN is used for secure remote access and does not resolve Wi-Fi connection issues.

  Why Not C (Encryption): Encryption settings are related to data security, not network connectivity.

  Why Not D (WPS): WPS (Wi-Fi Protected Setup) is used to easily connect devices to Wi-Fi, but it is not required for this issue.

  Core 1 (220-1101), Section 2.4, wireless network troubleshooting.