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CompTIA A+ Core 1 V15
CompTIA A+ Core 1 220-1201 Practice Test
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CompTIA A+ Core 1
CompTIA A+ Core 1 V15
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Question 1 of 10
Objective 1.3
Mobile devices
A Bluetooth keyboard reconnects to a tablet later without repeating the full pairing workflow. In Bluetooth terminology, what is bonding?
Exchange and storage of long-term keys after pairing is correct because Bluetooth bonding establishes a secure, persistent connection. This allows devices to automatically reconnect without repeating the initial pairing process, ensuring continued secure communication.
Concept tested: Mobile devices (1.3)
Question 2 of 10
Objective 2.1
Networking
A network engineer is troubleshooting a slow file transfer over the internet. Where in the TCP/IP stack are reliability mechanisms such as error detection and retransmission handled?
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Concept tested: Networking (2.1)
Question 3 of 10
Objective 1.1
Mobile devices
A user plans to store an iPhone unused for several months. What battery charge level should the technician recommend before storage?
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Concept tested: Mobile devices (1.1)
Question 4 of 10
Objective 2.2
Networking
A laptop automatically receives an IP address when joining an office network. Which service provides this functionality?
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Concept tested: Networking (2.2)
Question 5 of 10
Objective 1.4
Mobile devices
A traveler wants to minimize potential data roaming charges on an international flight. What is the primary function of enabling Airplane Mode on their Android device?
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Concept tested: Mobile devices (1.4)
Question 6 of 10
Objective 2.2
Networking
A network administrator wants a device to automatically obtain an IP address and other network settings. What is the primary function of DHCP in this scenario?
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Concept tested: Networking (2.2)
Question 7 of 10
Objective 1.2
Mobile devices
A USB-C battery pack can power a laptop in one setup and receive power from the laptop in another. Which power role behavior is supported by Dual-Role Power ports?
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Concept tested: Mobile devices (1.2)
Question 8 of 10
Objective 2.1
Networking
A technician is explaining why TCP can recover from corrupted or missing segments. Which TCP behavior supports that reliability?
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Concept tested: Networking (2.1)
Question 9 of 10
Objective 1.3
Mobile devices
While pairing a Bluetooth device, the laptop and device display identical numeric codes. What action should the technician take to ensure a secure connection?
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Concept tested: Mobile devices (1.3)
Question 10 of 10
Objective 2.1
Networking
A client is about to send reliable application data to a server over TCP. Before that data is sent reliably, what does TCP establish between endpoints?
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Concept tested: Networking (2.1)
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220-1201 CompTIA A+ Core 1
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UpdatedJul 10, 2026, 12:01 AM CDT
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Question 1 A Bluetooth keyboard reconnects to a tablet later without repeating the full pairing workflow. In Bluetooth terminology, what is bonding?
Answer choices
- A. Exchange and storage of long-term keys after pairing
- B. A method for forcing legacy PIN mode
- C. An RF channel-switching optimization
- D. Temporary scanning before device discovery
Correct answer
Exchange and storage of long-term keys after pairing
Exchange and storage of long-term keys after pairing is correct because Bluetooth bonding establishes a secure, persistent connection. This allows devices to automatically reconnect without repeating the initial pairing process, ensuring continued secure communication.
Wrong-answer review
- B. A method for forcing legacy PIN mode: Forcing legacy PIN mode changes the pairing method, while bonding focuses on secure key exchange, whereas Exchange and storage of long-term keys after pairing fits the requirement in this scenario.
- C. An RF channel-switching optimization: RF channel-switching optimization is unrelated to the security aspects of Bluetooth pairing, whereas Exchange and storage of long-term keys after pairing fits the requirement in this scenario.
- D. Temporary scanning before device discovery: Temporary scanning before discovery is a preliminary step in the pairing process, but doesn't define bonding, whereas Exchange and storage of long-term keys after pairing fits the requirement in this scenario.
Question 2 A network engineer is troubleshooting a slow file transfer over the internet. Where in the TCP/IP stack are reliability mechanisms such as error detection and retransmission handled?
Answer choices
- A. Application layer
- B. Transport layer
- C. Physical layer
- D. Data link layer
Correct answer
Transport layer
Question 3 A user plans to store an iPhone unused for several months. What battery charge level should the technician recommend before storage?
Answer choices
- A. Keep it around half charged
- B. Store it fully discharged at 0%
- C. Continuously trickle charge it while powered on
- D. Store it fully charged at 100%
Correct answer
Keep it around half charged
Question 4 A laptop automatically receives an IP address when joining an office network. Which service provides this functionality?
Answer choices
- A. DHCP is a protocol that assigns IP addresses to devices on a network dynamically
- B. DHCP is a file transfer protocol used for transferring files between computers
- C. DHCP is a routing protocol used for determining the best path for data packets
- D. DHCP is a security protocol used for encrypting data in transit
Correct answer
DHCP is a protocol that assigns IP addresses to devices on a network dynamically
Question 5 A traveler wants to minimize potential data roaming charges on an international flight. What is the primary function of enabling Airplane Mode on their Android device?
Answer choices
- A. To immediately disable all cellular and Wi-Fi connectivity, preventing data usage.
- B. To automatically connect to the strongest available Wi-Fi network, regardless of cellular signal.
- C. To temporarily disable cellular data while maintaining Wi-Fi and Bluetooth functionality.
- D. To prioritize cellular data over Wi-Fi, ensuring faster speeds when available.
Correct answer
To immediately disable all cellular and Wi-Fi connectivity, preventing data usage.
Question 6 A network administrator wants a device to automatically obtain an IP address and other network settings. What is the primary function of DHCP in this scenario?
Answer choices
- A. To encrypt data transmitted over the network
- B. To assign IP addresses to devices dynamically
- C. To transfer files between computers
- D. To route data packets across networks
Correct answer
To assign IP addresses to devices dynamically
Question 7 A USB-C battery pack can power a laptop in one setup and receive power from the laptop in another. Which power role behavior is supported by Dual-Role Power ports?
Answer choices
- A. They can operate as either Source or Sink depending on negotiation
- B. They can only ever act as Sink ports
- C. They can only ever act as Source ports
- D. They cannot participate in USB Power Delivery
Correct answer
They can operate as either Source or Sink depending on negotiation
Question 8 A technician is explaining why TCP can recover from corrupted or missing segments. Which TCP behavior supports that reliability?
Answer choices
- A. TCP relies on UDP to recover lost segments
- B. TCP has no sequence numbering
- C. TCP uses checksums to detect corruption and retransmits missing data
- D. TCP intentionally drops out-of-order traffic without recovery
Correct answer
TCP uses checksums to detect corruption and retransmits missing data
Question 9 While pairing a Bluetooth device, the laptop and device display identical numeric codes. What action should the technician take to ensure a secure connection?
Answer choices
- A. Accept immediately without checking values
- B. Enter the value only on one device regardless of method
- C. Verify both values match before accepting the pairing request
- D. Turn off encryption to avoid mismatches
Correct answer
Verify both values match before accepting the pairing request
Question 10 A client is about to send reliable application data to a server over TCP. Before that data is sent reliably, what does TCP establish between endpoints?
Answer choices
- A. Establishes connection state between endpoints
- B. Uses ICMP echo as its transport setup
- C. Requires manual static route creation
- D. Starts streaming data without state negotiation
Correct answer
Establishes connection state between endpoints
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