4. Interpret a Basic Network Topology Diagram with Elements Such as Switches, Routers, Firewalls, Load Balancers, and Port Values 200-901 Practice Questions (Page 3)

Questions 11–15

1. 11expert · hard

   A user on the internal network (10.0.0.0/8) attempts to access a public web server at 203.0.113.10. The topology shows: user → switch → router → firewall → internet. The firewall has a rule that allows outbound traffic from the internal network to any destination on TCP 80 and 443. However, the user cannot reach the web server. Which additional configuration is most likely required?

   • AChange the firewall rule to allow TCP 80 and 443 on the inbound interface.
   • BAdd a static route on the router to reach 203.0.113.10.
   • CConfigure NAT on the router to translate the internal source IP to a public IP.
   • DAdd a firewall rule to allow inbound traffic from the web server to the user.
   Reveal Solution Discussion Select an answer first
2. 12expert · medium

   A network diagram shows a client PC connected to a switch, which connects to a router, which connects to a firewall, which connects to the internet. The client is using a VoIP phone connected to the same switch. The VoIP phone uses SIP for signaling. Which destination port does the SIP signaling use?

   • A1720
   • B5061
   • C5060
   • D2000
   Reveal Solution Discussion Select an answer first
4. 13application · medium

   A diagram shows a router connected to a switch, which connects to three servers. The router also connects to a firewall, which connects to the internet. A load balancer is placed between the switch and the servers. What is the primary role of the load balancer in this topology?

   • AFilter malicious traffic before it reaches the servers.
   • BRoute packets between the switch and the internet.
   • CProvide a single collision domain for all connected devices.
   • DDistribute incoming client requests across the three servers to balance load and provide high availability.
   Reveal Solution Discussion Select an answer first
5. 14foundation · easy

   In a topology diagram, two switches are connected to each other and each switch is also connected to a different router. What does this design provide?

   • ANo redundancy because the switches are connected
   • BA single point of failure at the switch level
   • CRedundant paths between the switches and to the routers
   • DRedundancy for the router connections
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6. 15foundation · easy

   In a topology diagram, a web server is shown with the label 'TCP 443'. Which service is this server providing?

   • AFTP
   • BSSH
   • CHTTPS
   • DHTTP
   Reveal Solution Discussion Select an answer first