Network+ Networking Fundamentals Flashcards
7 cards from real COMPTIA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Network+ Networking Fundamentals flashcards as text
Which protocol is used to translate private IPv4 addresses to a single public IP address for internet access?
Answer: NAT
NAT (Network Address Translation) maps private internal IP addresses to one or more public addresses, enabling internet access while conserving public IPs.
What does a broadcast domain define in a network?
Answer: All devices that receive a broadcast frame sent by any member
A broadcast domain includes all devices that receive Layer 2 broadcast frames; routers and VLANs are used to segment broadcast domains.
Which port number does HTTPS use by default?
Answer: 443
HTTPS uses TCP port 443 for encrypted web traffic secured by TLS/SSL.
What type of address is 169.254.10.5, and when is it assigned?
Answer: An APIPA address assigned when DHCP is unavailable
169.254.0.0/16 is the APIPA (Automatic Private IP Addressing) range, self-assigned by a Windows host when no DHCP server responds.
Which cable standard supports 10 Gbps Ethernet over a maximum distance of 100 meters?
Answer: Cat 6a
Cat 6a (augmented Category 6) supports 10GBASE-T at speeds up to 10 Gbps over distances up to 100 meters.
Which topology connects every device directly to every other device, providing the highest redundancy?
Answer: Full mesh
A full mesh topology has a direct link between every pair of nodes, maximizing redundancy at the cost of cabling complexity.
What is the loopback address in IPv4 and what is it used for?
Answer: 127.0.0.1 — used to test the local TCP/IP stack without sending traffic on the network
127.0.0.1 (loopback) allows a host to test its own TCP/IP stack; packets sent to this address never leave the device.