Test Out Exam 2

Test out exam 2 1. What is the first thing a device does when it connects to a network? Sends a DHCP Discover packet 2. You have a TCP/IP network with 50 hosts. There have been inconsistent communication problems between these hosts. You run a protocol analyzer and discover that two of them have the same IP address assigned. Which protocol can you implement on your network to help prevent problems such as this? DHCP 3. Which of the following IPv6 addresses is equivalent to the IPv4 loopback address of 127.0.0.1? ::1 4. After you install a new DHCP server on your network, you need to verify that the network devices are receiving IP addressing via DHCP. You reboot a Windows 10 client system and, using the ipconfig /all command, receive the following information: Ethernet adapter Local Area Connection 1: Description . . . . . . . . . . . : Intel(R) Ethernet Connection Physical Address. . . . . . . . . : 02-00-4C-4F-3F-50 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Autoconfiguration IPv4 Address. . : 169.254.25.129 Subnet Mask . . . . . . . . . . . : 255.255.0.0 Default Gateway . . . . . . . . . : DNS Servers . . . . . . . . . . . : Which of the following statements are true? (Select two). The client system is unable to reach the DHCP server. The client system is configured to use DHCP. 5. Which of the following IPv6 addresses is used by a host to contact a DHCP server? FF02::1:2 6. Which port is a DHCP Discover packet sent out on when a device first connects to a network? 67 7. You need to transfer data from one laptop to another, and you would like to use an Ethernet cable. You do not have a hub or a switch. Which type of cable should you use? Crossover 8. When a device renews its DHCP lease, which two steps in the DHCP process are skipped? Discover Offer 9. Which of the following is true about half-duplex mode? Collision detection is turned on. 10. Listed below are several DNS record types. Match each record type on the left with its function on the right. Points a hostname to an IPv4 address A Provides alternate names to hosts that already have a host record CNAME Points an IP address to a hostname PTR Points a hostname to an IPv6 address AAAA Identifies servers that can be used to deliver mail MX 11. On a typical network, what happens if a client attempts to receive DHCP configuration from a DHCP server that's located on a different subnet? The router drops the DHCP request. 12. Which of the following statements about Dynamic Host Configuration Protocol (DHCP) are true? (Select two.) It can deliver other configuration information in addition to IP addresses. A DHCP server assigns addresses to requesting hosts. 13. Which organization is responsible for allocating public IP addresses? IANA 14. Your network follows the 100Base-TX specifications for Fast Ethernet. What is the maximum cable segment length allowed? 100 meters 15. You are configuring the DHCP relay agent role on a Windows server. Which of the following is a required step for the configuration? Specify which server network interface the agent listens on for DHCP messages. 16. If dynamic DNS is in use, which of the following events causes a dynamic update of the host records? (Select two.) Renew the DHCP server's IP address lease. Enter the ipconfig /registerdns command on a workstation. 17. Which of the following connectors is typically used for the ends of a rollover cable? RJ45 Serial 18. Which of the following would a device use to receive NTP configuration from a NTP server that's located on a different network? IP helper 19. Which of the following physical topologies are used with Ethernet networks? (Select two.) Bus Star 20. Your network uses a network address of 137.65.0.0 with a subnet mask of 255.255.0.0. How many IP addresses are available to assign to network hosts on this network? 65534 21. Which of the following DHCP scope options assigns a static IP configuration to a device using that device's MAC address? Reservation 22. Due to wide network expansion, you've decided to upgrade your network by configuring a DHCP server. The network uses Linux, Windows, and Mac OS X client systems. You configure the server to distribute IP addresses from 192.168.2.1 to 192.168.2.100. You use the subnet mask of 255.255.255.0. After you make all the setÝng changes on the DHCP server, you reboot each client system, but they are not able to obtain an IP address from the DHCP server. Which of the following explains the failure? You must configure the clients to obtain IP addressing from a DHCP server. 23. You are the network administrator for a small consulting firm. The firm has recently rolled out a new intranet site, and you are responsible for configuring the DNS. You are able to connect to the intranet site by using the IP address, but you cannot connect when you use the hostname. Which of the following do you need to configure so that the site can be accessed with the hostname? Forward lookup zone 24 Which of the following are characteristics of Teredo tunneling? (Select three.) Can be used to send data over the internet Is configured between individual hosts Has dual-stack hosts 25. You need to design an IPv6 addressing scheme for your network. The following are key requirements for your design:  Infrastructure hosts, such as routers and servers, are assigned static interface IDs. However, workstations, notebooks, tablets, and phones are assigned interface IDs dynamically.  Internet access must be available to all hosts through an ISP.  Site-to-site WAN connections are created using leased lines. Which type of IPv6 addressing is most appropriate for hosts on this network? Global unicast addressing 26. You manage a network with two locations (Portland and Seattle). Both locations are connected to the internet. The computers in both locations are configured to use IPv6. You'd like to implement an IPv6 solution to meet the following requirements:  Hosts in each location should be able to use IPv6 to communicate with hosts in the other location through the IPv4 internet.  You want to use a site-to-site tunneling method instead of a host-to-host tunneling method. Which IPv6 solution should you use? 6to4 tunneling 27. Which of the following best describes the purpose of using subnets? Subnets divide an IP network address into multiple network addresses. 28. What is the correct binary form of the decimal IP address 192.168.1.1? 11000000.10101000.00000001.00000001 29. Which of the following is the first place a computer looks at during the name resolution process? HOSTS file 30. You want to connect the LAN port on a router to the uplink port on a switch. The switch does not support auto-MDI. Which type of cable should you use? Crossover 31. You need to connect two switches using their uplink ports. The switches do not support auto-MDI. Which type of cable should you use? Crossover 32. Which of the following is the top-level domain in www.testout.com.'s fully qualified domain name (FQDN)? Com 33. Which of the following strategies do we use to prevent duplicate IP addresses from being used on a network? (Select two.) Install a DHCP server on the network. Use Automatic Private IP Addressing (APIPA). 34. Which port does the relay agent use when it sends DHCP information back to the client? 68 35. Which of the following standards does a rollover cable typically use? RS232 36. You need to connect a workstation to a switch using a regular port on the switch (not an uplink port). The switch does not support auto-MDI. Which type of cable should you use? Straight-through 37. You have a small network with three subnets, as shown in the exhibit. IP addresses for each router interface are also indicated in the exhibit. How many IP addresses that you can assign to hosts remain on each subnet? SubnetA = 125, SubnetB = 0, SubnetC = 13