Networking & Servers GFACT Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   Which protocol is used to automatically assign IP addresses and other network configuration parameters to devices on a network?

   • AICMP
   • BDHCP
   • CHTTP
   • DDNS
   Reveal Solution Discussion Select an answer first
2. 2application · medium

   A small office has a single router connected to the ISP, a switch, and several workstations. Users report that web browsing is slow, but email and file sharing work fine. You check the router's logs and see a large number of ICMP echo requests from an external IP. Which protocol is being used to flood the router, and what is the most immediate impact?

   • AUDP is flooding the router, causing the switch to drop all frames.
   • BTCP is flooding the router, causing the firewall to block all inbound connections.
   • CICMP is flooding the router, consuming its CPU and causing it to drop or delay legitimate traffic.
   • DDNS is flooding the router, preventing workstations from resolving internal hostnames.
   Reveal Solution Discussion Select an answer first
4. 3application · medium

   A network administrator is troubleshooting a connectivity issue. A workstation can ping the local gateway but cannot reach a server on a different subnet. The administrator checks the routing table on the workstation and sees a default route. Which OSI layer is most likely where the failure is occurring?

   • ALayer 7, because the application is not responding.
   • BLayer 2, because the switch is not forwarding frames to the gateway.
   • CLayer 4, because the firewall is blocking the TCP handshake.
   • DLayer 3, because the router is not forwarding packets between subnets.
   Reveal Solution Discussion Select an answer first
5. 4application · medium

   A company's network has multiple VLANs for different departments. Users in the Sales VLAN need to access a server in the IT VLAN. Which device is required to allow communication between these VLANs?

   • AA layer 3 switch or router
   • BA wireless access point
   • CA firewall only
   • DA layer 2 switch
   Reveal Solution Discussion Select an answer first
6. 5application · medium

   A company runs a web server on a virtual machine in a public cloud. The VM has a public IP address and is protected by a cloud firewall (security group) that allows only TCP ports 80 and 443 from the internet. Users report they can access the website, but the administrator cannot SSH into the VM from the office. What is the most likely cause?

   • AThe VM does not have a private IP address.
   • BThe web server is consuming all CPU resources.
   • CThe security group does not allow inbound TCP port 22.
   • DThe VM's operating system firewall is blocking ICMP.
   Reveal Solution Discussion Select an answer first