4. Interpret a Basic Network Topology Diagram with Elements Such as Switches, Routers, Firewalls, Load Balancers, and Port Values 200-901 Practice Questions (Page 6)

Questions 26–30

1. 26application · medium

   A network diagram shows a router connected to a firewall, which connects to a DMZ switch. The DMZ switch connects to a web server and a mail server. The firewall also connects to an internal switch. Which device is responsible for controlling traffic between the DMZ and the internal network?

   • AThe firewall
   • BThe web server
   • CThe DMZ switch
   • DThe router
   Reveal Solution Discussion Select an answer first
2. 27expert · hard

   A topology shows a client (10.0.0.10) sending a DNS query to a DNS server (10.0.0.53). The path is: client → switch → router → firewall → DNS server. The firewall has a rule allowing UDP 53 from the client network to the DNS server. The DNS query fails. The network team checks the firewall logs and sees that the query is being dropped. What is the most likely reason?

   • AThe router is not routing to the DNS server.
   • BThe client is using TCP 53 instead of UDP.
   • CThe firewall rule is applied to the wrong interface or direction.
   • DThe DNS server is not listening on UDP 53.
   Reveal Solution Discussion Select an answer first
4. 28foundation · easy

   A topology shows: Web Server → Firewall → Router → Internet. A user on the internet wants to access the web server. What is the correct sequence of devices the traffic passes through?

   • AWeb Server → Firewall → Router → Internet
   • BInternet → Firewall → Router → Web Server
   • CInternet → Router → Firewall → Web Server
   • DInternet → Router → Web Server → Firewall
   Reveal Solution Discussion Select an answer first
5. 29application · medium

   A topology shows a client (192.168.1.10) sending an HTTP request to a web server (10.1.1.20). The path is: client → switch → router → firewall → load balancer → web server. The load balancer is configured with a VIP of 10.1.1.100. What is the destination IP address in the packet when it leaves the client?

   • A10.1.1.100
   • B10.1.1.20
   • CThe firewall's IP address
   • D192.168.1.10
   Reveal Solution Discussion Select an answer first
6. 30foundation · easy

   In a network diagram, a device is connected to multiple servers and distributes incoming client requests among them to optimize resource use. What is the role of this device?

   • ASwitch
   • BFirewall
   • CRouter
   • DLoad balancer
   Reveal Solution Discussion Select an answer first