Networking Basics: LAN vs. WAN, IP/MAC Addresses, Routers, Switches, and Firewalls. IT-FUNDAMENTALS-ITF-CERTIFICATION Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   A home user has a single router that connects their computer, smartphone, and smart TV to the internet. The router assigns each device a unique address so that data sent from the internet is delivered to the correct device. Which type of address does the router assign to each device for this purpose?

   • AIP address
   • BMAC address
   • CSubnet mask
   • DPort number
   Reveal Solution Discussion Select an answer first
2. 2application · medium

   A company's network administrator wants to prevent employees from accessing a known malicious website while still allowing all other internet traffic. The company uses a router to connect its LAN to the internet. Which device or configuration should the administrator use to block access to that specific website?

   • ADisable the firewall
   • BConfigure a firewall rule to block traffic to the website's IP address
   • CConfigure the switch to block the website's MAC address
   • DChange the router's IP address
   Reveal Solution Discussion Select an answer first
4. 3foundation · easy

   Which of the following is a valid IPv6 address format?

   • A00:1A:2B:3C:4D:5E
   • B192.168.1.1
   • C2001:0db8:85a3:0000:0000:8a2e:0370:7334
   • D10.0.0.255
   Reveal Solution Discussion Select an answer first
5. 4application · medium

   A network administrator is setting up a small office network with 10 computers and a server. The administrator wants to ensure that data sent from one computer to another is delivered only to the intended recipient, not broadcast to all devices. Which device should be used to connect the computers and the server?

   • AA router
   • BA firewall
   • CA hub
   • DA switch
   Reveal Solution Discussion Select an answer first
6. 5foundation · easy

   Which statement correctly describes the purpose of an IP address?

   • AIt is a 48-bit hexadecimal number that never changes.
   • BIt is a unique identifier assigned only to servers, not to client devices.
   • CIt identifies a device's location on a network and enables routing of data between networks.
   • DIt is a physical address burned into the network interface card (NIC).
   Reveal Solution Discussion Select an answer first