You are a junior network engineer for a financial company, and the main office network is experiencing network issues. Troubleshoot the network issues.
Router R1 connects the main office to the internet, and routers R2 and R3 are internal routers. NAT is enabled on router R1.
The routing protocol that is enabled between routers R1, R2 and R3 is RIPv2.
R1 sends the default route into RIPv2 for the internal routers to forward internet traffic to R1. You have console access on R1, R2 and R3 devices.
Use only show commands to troubleshoot the issues.

  1. Examine the DHCP configuration between R2 and R3; R2 is configured as the DHCP server and R3 as the client. What is the reason R3 is not receiving the IP address via DHCP?
    A. On R2. The network statement In the DHCP pool configuration is incorrectly configured.
    B. On R3. DHCP is not enabled on the interface that is connected to R2.
    C. On R2, the interface that is connected to R3 is in shutdown condition.
    D. On R3, the interface that is connected to R2 is in shutdown condition.
  2. R1 router clock is synchronized with ISP router R2 is supposed to receive NTP updates from R1. But you observe that R2 clock is not synchronized with R1. What is the reason R2 is not receiving NTP updates from R1?
    A. The IP address that is used in the NTP configuration on R2 router is incorrect.
    B. The NTP server command not configured on R2 router.
    C. R2 router Ethernet interface that is connected to R1 is placed in shutdown condition.
    D. R1 router Ethernet interface that is connected to R2 is placed in shutdown condition.
  3. Why applications that are installed on PC’s in R2 LAN network 10.100.20.0/24 are unable to communicate with server1?
    A. A standard ACL statement that is configured on R1 is blocking the traffic sourced from Server1 network.
    B. A standard ACL statement that is configured on R2 is blocking the traffic sourced from Server1 network.
    C. A standard ACL statement that is configured on R2 is blocking the traffic sourced from R2 LAN network.
    D. A standard ACL statement that is configured on R1 is blocking the traffic sourced from R2 LAN network.
  4. Users complain that they are unable to reach internet sites. You are troubleshooting internet connectivity problem at main office. Which statement correctly identifies the problem on Router R1?
    A. Interesting traffic for NAT ACL is incorrectly configured.
    B. NAT configurations on the interfaces are incorrectly configured.
    C. NAT translation statement incorrectly configured.
    D. Only static NAT translation configured for the server, missing Dynamic NAT or Dynamic NAT overloading for internal networks.

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