CC Exam: Domain 4 Network Security questions and verified correct answers 2024

What are the names of the two most common types of basic networks? - correct answer LAN, WAN A network hub is used to connect multiple devices to a network. What layer of the OSI model does it belong to? - correct answer Layer 1 - Physical What is the main difference between a layer 2 switch and a layer 3 switch? - correct answer A layer 2 switch can only route packets from a source port to a destination port using a MAC address of the device and a layer 3 switch routes using IP address routing. Routers are used to control traffic flow of data. What layer of the OSI model do they exist on? - correct answer Layer 3 Network A _______ layer firewall performs packet filtering based on the configurations of access authorization to open/close certain ports or IP addresses. Layer 3 is also known as what? - correct answer Network IEEE 802.3 is a standard that defines wired connections of networked devices. It defines the way data is formatted over the wire to ensure different devices can communicate over the same cables. What is this also known as? - correct answer Ethernet -F5 and 23.5.2.1 are common device address examples of what? - correct answer MAC (Media Access Control) , IP (Internet Protocol) What are the names of the 7 layers of the OSI model? - correct answer Physical, Data Link, Network, Transport, Session, Presentation, Application HTTP and DNS protocols operate at what layer of the OSI layer? - correct answer Application