A network technician is setting static IPv4 addresses on servers for a sandbox environment. Which settings would be considered optional for ensuring proper communications within a local area network? (Select all that apply.) A. The gateway B. The alternate DNS C. IP address D. Subnet mask
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The question asks which settings are optional for ensuring proper communication within a local area network (LAN) when setting static IPv4 addresses. Show more…
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Refer to the exhibit. A network administrator has configured R1 as shown. When the administrator checks the status of the serial interface, the interface is shown as being administratively down. What additional command must be entered on the serial interface of R1 to bring the interface up? In order for packets to be sent to a remote destination, what three pieces of information must be configured on a host? (Choose three.) a. Hostname b. IP address c. Subnet mask d. Default gateway e. DNS server address f. DHCP server address
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R2 is now set to be the DHCP server to provide IP addresses for all PC1 to PC6. The first 15 usable IP addresses of the four networks are reserved for static IP addresses. Use the pool name LAN_A for the network 20.0.0.0, LAN_B for the network 21.0.0.0, LAN_C for the network 145.61.0.0, and LAN_D for the network 200.164.20.0. Also, include the default gateway and DNS server in the DHCP assignment. a. Besides the first 15 usable IP addresses of each network, there is one more IP address that should be excluded from the DHCP pool based on the information given. What is it? b. Write the commands on R2 to set up the DHCP server based on the requirement. Also, consider part (a) answer. c. Assume your command typed on R2 is correct, it is found that not all PCs can get the IP addresses from DHCP. i. Which PCs cannot get the IP address? ii. What is the reason for this issue from the lab experience? iii. Write down commands to solve the problem. 2. Assume all PCs got the IP addresses from the DHCP server already. a. Assume the ARP table of PC3 is empty. After pinging from PC3 to PC5, what entry should be added to PC3's ARP table? (You may just refer to which PC or which router interface) b. What is the command to show the ARP table in PC3? c. List all of the devices or router interfaces that would appear in PC5's ARP table if all devices communicate with each other. d. Assume all ARP tables of the devices are empty. When pinging from PC2 to PC3, it is found that the first ping result is "request timed out," but the other 3 ping results are successful. Explain why.
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