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CCNA 1 v7 Modules 11 – 13: IP Addressing - Test Online
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1. Question1 pointsWhat is the prefix length notation for the subnet mask 255.255.255.224?CorrectIncorrect
HintThe binary format for 255.255.255.224 is 11111111.11111111.11111111.11100000. The prefix length is the number of consecutive 1s in the subnet mask. Therefore, the prefix length is /27.
2. Question1 pointsHow many valid host addresses are available on an IPv4 subnet that is configured with a /26 mask?CorrectIncorrect
3. Question1 pointsWhich subnet mask would be used if 5 host bits are available?CorrectIncorrect
4. Question1 pointsA network administrator subnets the 192.168.10.0/24 network into subnets with /26 masks. How many equal-sized subnets are created?CorrectIncorrect
5. Question1 pointsMatch the subnetwork to a host address that would be included within the subnetwork. (Not all options are used.)
6. Question1 pointsAn administrator wants to create four subnetworks from the network address 192.168.1.0/24. What is the network address and subnet mask of the second useable subnet?CorrectIncorrect
7. Question1 pointsHow many bits must be borrowed from the host portion of an address to accommodate a router with five connected networks?CorrectIncorrect
HintEach network that is directly connected to an interface on a router requires its own subnet. The formula 2n, where n is the number of bits borrowed, is used to calculate the available number of subnets when borrowing a specific number of bits.
8. Question1 pointsHow many host addresses are available on the 192.168.10.128/26 network?CorrectIncorrect
HintA /26 prefix gives 6 host bits, which provides a total of 64 addresses, because 26 = 64. Subtracting the network and broadcast addresses leaves 62 usable host addresses.
9. Question1 pointsHow many host addresses are available on the network 172.16.128.0 with a subnet mask of 255.255.252.0?CorrectIncorrect
HintA mask of 255.255.252.0 is equal to a prefix of /22. A /22 prefix provides 22 bits for the network portion and leaves 10 bits for the host portion. The 10 bits in the host portion will provide 1022 usable IP addresses (210 – 2 = 1022).
10. Question1 pointsMatch each IPv4 address to the appropriate address category. (Not all options are used.)CorrectIncorrect
11. Question1 pointsWhat three blocks of addresses are defined by RFC 1918 for private network use? (Choose three.)CorrectIncorrect
HintRFC 1918, Address Allocation for Private Internets, defines three blocks of IPv4 address for private networks that should not be routable on the public Internet.
12. Question1 pointsRefer to the exhibit. An administrator must send a message to everyone on the router A network. What is the broadcast address for network 172.16.16.0/22?CorrectIncorrect
HintThe 172.16.16.0/22 network has 22 bits in the network portion and 10 bits in the host portion. Converting the network address to binary yields a subnet mask of 255.255.252.0. The range of addresses in this network will end with the last address available before 172.16.20.0. Valid host addresses for this network range from 172.16.16.1-172.16.19.254, making 172.16.19.255 the broadcast address.
13. Question1 pointsA site administrator has been told that a particular network at the site must accommodate 126 hosts. Which subnet mask would be used that contains the required number of host bits?CorrectIncorrect
HintThe subnet mask of 255.255.255.0 has 8 host bits. The mask of 255.255.255.128 results in 7 host bits. The mask of 255.255.255.224 has 5 host bits. Finally, 255.255.255.240 represents 4 host bits.
14. Question1 pointsRefer to the exhibit. Considering the addresses already used and having to remain within the 10.16.10.0/24 network range, which subnet address could be assigned to the network containing 25 hosts?CorrectIncorrect
HintAddresses 10.16.10.0 through 10.16.10.63 are taken for the leftmost network. Addresses 10.16.10.192 through 10.16.10.207 are used by the center network.The address space from 208-255 assumes a /28 mask, which does not allow enough host bits to accommodate 25 host addresses.The address ranges that are available include 10.16.10.64/26 and10.16.10.128/26. To accommodate 25 hosts, 5 host bits are needed, so a /27 mask is necessary. Four possible /27 subnets could be created from the available addresses between 10.16.10.64 and 10.16.10.191: 10.16.10.64/27 10.16.10.96/27 10.16.10.128/27 10.16.10.160/27
15. Question1 pointsWhat is the usable number of host IP addresses on a network that has a /26 mask?CorrectIncorrect
HintA /26 mask is the same as 255.255.255.192. The mask leaves 6 host bits. With 6 host bits, 64 IP addresses are possible. One address represents the subnet number and one address represents the broadcast address, which means that 62 addresses can then be used to assign to network devices.
16. Question1 pointsWhich address prefix range is reserved for IPv4 multicast?CorrectIncorrect
17. Question1 pointsRefer to the exhibit. Match the network with the correct IP address and prefix that will satisfy the usable host addressing requirements for each network.
- 192.168.0.128 /25
- 192.168.0.0 /26
- 192.168.0.96 /27
- 192.168.0.80 /30
- Network A
- Network B
- Network C
- Network D
HintNetwork A needs to use 192.168.0.128 /25, which yields 128 host addresses. Network B needs to use 192.168.0.0 /26, which yields 64 host addresses. Network C needs to use 192.168.0.96 /27, which yields 32 host addresses. Network D needs to use 192.168.0.80/30, which yields 4 host addresses.
18. Question1 pointsA high school in New York (school A) is using videoconferencing technology to establish student interactions with another high school (school B) in Russia. The videoconferencing is conducted between two end devices through the Internet. The network administrator of school A configures the end device with the IP address 220.127.116.11. The administrator sends a request for the IP address for the end device in school B and the response is 192.168.25.10. Neither school is using a VPN. The administrator knows immediately that this IP will not work. Why?CorrectIncorrect
19. Question1 pointsWhich three addresses are valid public addresses? (Choose three.)CorrectIncorrect
HintThe ranges of private IPv4 addresses are as folllows: 10.0.0.0 – 10.255.255.255 172.16.0.0 – 172.31.255.255 192.168.0.0 – 192.168.255.255
20. Question1 pointsA message is sent to all hosts on a remote network. Which type of message is it?CorrectIncorrect
HintA directed broadcast is a message sent to all hosts on a specific network. It is useful for sending a broadcast to all hosts on a nonlocal network. A multicast message is a message sent to a selected group of hosts that are part of a subscribing multicast group. A limited broadcast is used for a communication that is limited to the hosts on the local network. A unicast message is a message sent from one host to another.
21. Question1 pointsA company has a network address of 192.168.1.64 with a subnet mask of 255.255.255.192. The company wants to create two subnetworks that would contain 10 hosts and 18 hosts respectively. Which two networks would achieve that? (Choose two.)CorrectIncorrect
22. Question1 pointsWhich address is a valid IPv6 link-local unicast address?CorrectIncorrect
HintIPv6 LLAs are in the fe80::/10 range. The /10 indicates that the first 10 bits are 1111 1110 10xx xxxx. The first hextet has a range of 1111 1110 1000 0000 (fe80) to 1111 1110 1011 1111 (febf).
23. Question1 pointsWhich of these addresses is the shortest abbreviation for the IP address: 3FFE:1044:0000:0000:00AB:0000:0000:0057?CorrectIncorrect
HintThe rules for reducing the notation of IPv6 addresses are: 1. Omit any leading 0s (zeros) in any hextet. 2. Replace any single, contiguous string of one or more 16-bit hextets consisting of all zeros with a double colon (::) . 3. The double colon (::) can only be used once within an address.
24. Question1 pointsA network administrator has received the IPv6 prefix 2001:DB8::/48 for subnetting. Assuming the administrator does not subnet into the interface ID portion of the address space, how many subnets can the administrator create from the /48 prefix?CorrectIncorrect
HintWith a network prefix of 48, there will be 16 bits available for subnetting because the interface ID starts at bit 64. Sixteen bits will yield 65536 subnets.
25. Question1 pointsGiven IPv6 address prefix 2001:db8::/48, what will be the last subnet that is created if the subnet prefix is changed to /52?CorrectIncorrect
HintPrefix 2001:db8::/48 has 48 network bits. If we subnet to a /52, we are moving the network boundary four bits to the right and creating 16 subnets. The first subnet is 2001:db8::/52 the last subnet is 2001:db8:0:f000::/52.
26. Question1 pointsConsider the following range of addresses: 2001:0DB8:BC15:00A0:0000:: 2001:0DB8:BC15:00A1:0000:: 2001:0DB8:BC15:00A2:0000:: … 2001:0DB8:BC15:00AF:0000:: The prefix-length for the range of addresses is ___CorrectIncorrect
HintAll the addresses have the part 2001:0DB8:BC15:00A in common. Each number or letter in the address represents 4 bits, so the prefix-length is /60.
27. Question1 pointsWhat type of IPv6 address is FE80::1?CorrectIncorrect
28. Question1 pointsRefer to the exhibit. A company is deploying an IPv6 addressing scheme for its network. The company design document indicates that the subnet portion of the IPv6 addresses is used for the new hierarchical network design, with the site subsection to represent multiple geographical sites of the company, the sub-site section to represent multiple campuses at each site, and the subnet section to indicate each network segment separated by routers. With such a scheme, what is the maximum number of subnets achieved per sub-site?CorrectIncorrect
HintBecause only one hexadecimal character is used to represent the subnet, that one character can represent 16 different values 0 through F.
29. Question1 pointsWhat is used in the EUI-64 process to create an IPv6 interface ID on an IPv6 enabled interface?CorrectIncorrect
HintThe EUI-64 process uses the MAC address of an interface to construct an interface ID (IID). Because the MAC address is only 48 bits in length, 16 additional bits (FF:FE) must be added to the MAC address to create the full 64-bit interface ID.
30. Question1 pointsWhat is the prefix for the host address 2001:DB8:BC15:A:12AB::1/64?CorrectIncorrect
31. Question1 pointsAn IPv6 enabled device sends a data packet with the destination address of FF02::1. What is the target of this packet?CorrectIncorrect
32. Question1 pointsMatch the IPv6 address with the IPv6 address type. (Not all options are used.)
- solicited node multicast
- global unicast
- all node multicast
HintFF02::1:FFAE:F85F is a solicited node multicast address. 2001:DB8::BAF:3F57:FE94 is a global unicast address. FF02::1 is the all node multicast address. Packets sent to this address will be received by all IPv6 hosts on the local link. ::1 is the IPv6 loopback address. There are no examples of link local or unique local addresses provided.
33. Question1 pointsWhich IPv6 prefix is reserved for communication between devices on the same link?CorrectIncorrect
HintIPv6 link-local unicast addresses are in the FE80::/10 prefix range and are not routable. They are used only for communications between devices on the same link.
34. Question1 pointsWhich type of IPv6 address refers to any unicast address that is assigned to multiple hosts?CorrectIncorrect
35. Question1 pointsWhat are two types of IPv6 unicast addresses? (Choose two.)CorrectIncorrect
HintMulticast, anycast, and unicast are types of IPv6 addresses. There is no broadcast address in IPv6. Loopback and link-local are specific types of unicast addresses.
36. Question1 pointsWhich service provides dynamic global IPv6 addressing to end devices without using a server that keeps a record of available IPv6 addresses?CorrectIncorrect
HintUsing stateless address autoconfiguration (SLAAC), a PC can solicit a router and receive the prefix length of the network. From this information the PC can then create its own IPv6 global unicast address.
37. Question1 pointsWhich protocol supports Stateless Address Autoconfiguration (SLAAC) for dynamic assignment of IPv6 addresses to a host?CorrectIncorrect
HintSLAAC uses ICMPv6 messages when dynamically assigning an IPv6 address to a host. DHCPv6 is an alternate method of assigning an IPv6 addresses to a host. ARPv6 does not exist. Neighbor Discovery Protocol (NDP) provides the functionality of ARP for IPv6 networks. UDP is the transport layer protocol used by DHCPv6.
38. Question1 pointsThree methods allow IPv6 and IPv4 to co-exist. Match each method with its description. (Not all options are used.)
- The IPv4 packets and IPv6 packets coexist in the same network.
- The IPV6 packet is transported inside an IPv4 packet.
- IPv6 packets are converted into IPv4 packets, and vice versa.
39. Question1 pointsA technician uses the ping 127.0.0.1 command. What is the technician testing?CorrectIncorrect
40. Question1 pointsRefer to the exhibit. An administrator is trying to troubleshoot connectivity between PC1 and PC2 and uses the tracert command from PC1 to do it. Based on the displayed output, where should the administrator begin troubleshooting?CorrectIncorrect
41. Question1 pointsWhich protocol is used by the traceroute command to send and receive echo-requests and echo-replies?CorrectIncorrect
HintTraceroute uses the ICMP (Internet Control Message Protocol) to send and receive echo-request and echo-reply messages.
42. Question1 pointsWhich ICMPv6 message is sent when the IPv6 hop limit field of a packet is decremented to zero and the packet cannot be forwarded?CorrectIncorrect
43. Question1 pointsA user executes a traceroute over IPv6. At what point would a router in the path to the destination device drop the packet?CorrectIncorrect
44. Question1 pointsWhat is the purpose of ICMP messages?CorrectIncorrect
HintThe purpose of ICMP messages is to provide feedback about issues that are related to the processing of IP packets.
45. Question1 pointsWhat source IP address does a router use by default when the traceroute command is issued?CorrectIncorrect
HintWhen sending an echo request message, a router will use the IP address of the exit interface as the source IP address. This default behavior can be changed by using an extended ping and specifying a specific source IP address.
46. Question1 pointsMatch each description with an appropriate IP address. (Not all options are used.)
- The private addresses
- a loopback addresses
- an experimental address
- a TEST-NET address
- a link-local address
47. Question1 pointsA user issues a ping 18.104.22.168 command and receives a response that includes a code of 1. What does this code represent?CorrectIncorrect
48. Question1 pointsWhich subnet would include the address 192.168.1.96 as a usable host address?CorrectIncorrect
HintFor the subnet of 192.168.1.64/26, there are 6 bits for host addresses, yielding 64 possible addresses. However, the first and last subnets are the network and broadcast addresses for this subnet. Therefore, the range of host addresses for this subnet is 192.168.1.65 to 192.168.1.126. The other subnets do not contain the address 192.168.1.96 as a valid host address.
49. Question1 pointsOpen the PT Activity. Perform the tasks in the activity instructions and then answer the question.What are the three IPv6 addresses displayed when the route from PC1 to PC2 is traced? (Choose three.)CorrectIncorrect
HintUsing the ipv6config command on PC2 displays the IPv6 address of PC2, which is 2001:DB8:1:4::A. The IPV6 link-local address, FE80::260:70FF:FE34:6930, is not used in route tracing. Using the tracert 2001:DB8:1:4::A command on PC1 displays four addresses: 2001:DB8:1:1::1, 2001:DB8:1:2::1 , 2001:DB8:1:3::2, and 2001:DB8:1:4::A.
50. Question1 pointsA host is transmitting a broadcast. Which host or hosts will receive it?CorrectIncorrect
51. Question1 pointsA host is transmitting a unicast. Which host or hosts will receive it?CorrectIncorrect
52. Question1 pointsA user issues a ping 2001:db8:FACE:39::10 command and receives a response that includes a code of 3. What does this code represent?CorrectIncorrect
53. Question1 pointsA host is transmitting a multicast. Which host or hosts will receive it?CorrectIncorrect
54. Question1 pointsA host is transmitting a multicast. Which host or hosts will receive it?CorrectIncorrect
55. Question1 pointsA host is transmitting a multicast. Which host or hosts will receive it?CorrectIncorrect
56. Question1 pointsA host is transmitting a multicast. Which host or hosts will receive it?CorrectIncorrect
57. Question1 pointsA host is transmitting a multicast. Which host or hosts will receive it?CorrectIncorrect
58. Question1 pointsA host is transmitting a broadcast. Which host or hosts will receive it?CorrectIncorrect
59. Question1 pointsA host is transmitting a broadcast. Which host or hosts will receive it?CorrectIncorrect
60. Question1 pointsWhich is the compressed format of the IPv6 address 2001:0db8:0000:0000:0000:a0b0:0008:0001?CorrectIncorrect
61. Question1 pointsWhich is the compressed format of the IPv6 address fe80:09ea:0000:2200:0000:0000:0fe0:0290?CorrectIncorrect
62. Question1 pointsWhich is the compressed format of the IPv6 address 2002:0042:0010:c400:0000:0000:0000:0909?CorrectIncorrect
63. Question1 pointsWhich is the compressed format of the IPv6 address 2001:0db8:0000:0000:0ab8:0001:0000:1000?CorrectIncorrect
64. Question1 pointsWhich is the compressed format of the IPv6 address 2002:0420:00c4:1008:0025:0190:0000:0990?CorrectIncorrect
65. Question1 pointsWhich is the compressed format of the IPv6 address 2001:0db8:0000:0000:0000:a0b0:0008:0001?CorrectIncorrect
66. Question1 pointsWhich is the compressed format of the IPv6 address fe80:0000:0000:0000:0220:0b3f:f0e0:0029?CorrectIncorrect
67. Question1 pointsWhich is the compressed format of the IPv6 address 2001:0db8:0000:0000:0000:a0b0:0008:0001?CorrectIncorrect
68. Question1 pointsWhich is the compressed format of the IPv6 address 2002:0042:0010:c400:0000:0000:0000:0909?CorrectIncorrect
69. Question1 pointsWhich is the compressed format of the IPv6 address fe80:09ea:0000:2200:0000:0000:0fe0:0290?CorrectIncorrect
70. Question1 pointsA user issues a ping 2001:db8:FACE:39::10 command and receives a response that includes a code of 2 . What does this code represent?CorrectIncorrect
71. Question1 pointsA user issues a ping 22.214.171.124 command and receives a response that includes a code of 1. What does this code represent?CorrectIncorrect
72. Question1 pointsA user issues a ping fe80:65ab:dcc1::100 command and receives a response that includes a code of 3. What does this code represent?CorrectIncorrect
73. Question1 pointsA user issues a ping 10.10.14.67 command and receives a response that includes a code of 0. What does this code represent?CorrectIncorrect
74. Question1 pointsA user issues a ping fe80:65ab:dcc1::100 command and receives a response that includes a code of 4. What does this code represent?CorrectIncorrect
75. Question1 pointsA user issues a ping 126.96.36.199 command and receives a response that includes a code of 0. What does this code represent?CorrectIncorrect
76. Question1 pointsA user issues a ping 2001:db8:3040:114::88 command and receives a response that includes a code of 4. What does this code represent?CorrectIncorrect
77. Question1 pointsA user issues a ping 2001:db8:FACE:39::10 command and receives a response that includes a code of 2. What does this code represent?CorrectIncorrect