Networking & Protocols GSEC Practice Questions (Page 13)

Questions 61–64

1. 61foundation · easy

   What is the primary function of a network firewall?

   • ATo encrypt all network traffic
   • BTo filter traffic based on a set of security rules
   • CTo route packets between different networks
   • DTo assign IP addresses to devices
   Reveal Solution Discussion Select an answer first
2. 62foundation · easy

   Which OSI model layer is responsible for routing packets across different networks and determining the best path for data transmission?

   • ASession Layer
   • BTransport Layer
   • CData Link Layer
   • DNetwork Layer
   Reveal Solution Discussion Select an answer first
4. 63application · medium

   A network engineer is troubleshooting a connectivity issue between two routers. The engineer suspects that the issue is at the data link layer. Which of the following would be the most direct way to verify that the data link layer is functioning correctly?

   • ACheck the routing table on the local router
   • BPing the remote router's IP address
   • CCheck the status of the router's interfaces using the 'show interfaces' command
   • DUse the 'traceroute' command to the remote router
   Reveal Solution Discussion Select an answer first
5. 64foundation · easy

   What is the primary purpose of a MAC address in local network communication?

   • ATo uniquely identify a network interface within a local network
   • BTo encrypt data transmitted over the network
   • CTo route packets between different networks
   • DTo identify a device on the internet
   Reveal Solution Discussion Select an answer first