Networking Basics: LAN vs. WAN, IP/MAC Addresses, Routers, Switches, and Firewalls. IT-FUNDAMENTALS-ITF-CERTIFICATION Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   What is the primary function of a router?

   • ATo assign IP addresses to devices on a network
   • BTo connect multiple devices within a single LAN and forward data based on MAC addresses
   • CTo direct data packets between different networks, such as between a LAN and the internet
   • DTo filter network traffic based on security rules
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   What is the primary role of a MAC address?

   • ATo route data between different networks
   • BTo translate domain names into IP addresses
   • CTo identify a device's logical location on a network
   • DTo provide a unique physical identifier for a network interface card (NIC)
   Reveal Solution Discussion Select an answer first
4. 13foundation · easy

   Which device is best suited to connect multiple computers in the same office so they can share files and printers?

   • ASwitch
   • BFirewall
   • CModem
   • DRouter
   Reveal Solution Discussion Select an answer first
5. 14application · medium

   A company's network has a firewall at the edge, between the internal LAN and the internet. The firewall is configured to allow web browsing traffic (ports 80 and 443) but block all other inbound traffic. An employee reports that they cannot access a file server that is located on the internal LAN. Which statement best explains why the firewall is not the cause of this issue?

   • AThe firewall is blocking the employee's MAC address
   • BThe firewall only filters traffic between the LAN and the internet, not traffic within the LAN
   • CThe firewall is blocking the file server's IP address
   • DThe firewall is not configured to allow file-sharing protocols
   Reveal Solution Discussion Select an answer first
6. 15application · medium

   A small accounting firm has two offices in the same city, each with 15 computers connected to a single network. The partners want employees in both offices to be able to access a shared file server and send print jobs to a printer located in the other office. Which two network types must be connected to make this work, and which device is required to connect them?

   • AOne LAN and one WAN connected by a firewall
   • BTwo WANs connected by a switch
   • COne LAN and one WAN connected by a switch
   • DTwo LANs connected by a router
   Reveal Solution Discussion Select an answer first