About This Flashcard Deck
This flashcard deck contains 10 cards covering key Network+ concepts for the NETPLUS exam. Test your networking knowledge. Use active recall by attempting to answer each question before revealing the answer.
Question
What are the 7 OSI layers?
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Answer
Application, Presentation, Session, Transport, Network, Data Link, Physical (mnemonic: All People Seem To Need Data Processing).
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All Network+ Flashcards
Q: What are the 7 OSI layers?
A: Application, Presentation, Session, Transport, Network, Data Link, Physical (mnemonic: All People Seem To Need Data Processing).
Q: What is the subnet mask for a /24 network?
A: 255.255.255.0 (256 addresses, 254 usable hosts).
Q: What is the difference between TCP and UDP?
A: TCP: connection-oriented, reliable, 3-way handshake, retransmits lost data. UDP: connectionless, faster, no guaranteed delivery.
Q: What is a VLAN?
A: Virtual LAN — logically segments a switch into separate broadcast domains without needing separate physical switches.
Q: What port does DNS use?
A: 53 (both TCP and UDP).
Q: What is NAT?
A: Network Address Translation — translates private IP addresses to public IP addresses for internet access.
Q: What is SNMP?
A: Simple Network Management Protocol — monitors and manages network devices. Uses agents and managers. Community strings (v2c) or auth/encryption (v3).
Q: What is 802.1X?
A: Port-based Network Access Control — authenticates devices before granting network access. Uses RADIUS/EAP.
Q: What is the purpose of ARP?
A: Address Resolution Protocol — resolves IP addresses to MAC addresses on a local network segment.
Q: What is a default gateway?
A: The router interface on the local network that forwards traffic to other networks/internet.
CompTIA Flashcard Study Technique
CompTIA exams cover broad domains with hundreds of concepts. Use these flashcards in short, focused sessions of 15–20 minutes rather than marathon study sessions. Group cards by domain and track which domains have the lowest recall rates — allocate extra study time to those areas. CompTIA exams weight domains differently, so match your flashcard focus to the domain percentages listed in the exam objectives.