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NetAcad 11 - 13

Scott Jones Computer Networking IT Certification Englisch 77 Karten

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  1. 110.5.4.100 255.255.255.0 What is the network address?10.5.4.0
  2. 2172.16.4.100 255.255.0.0 What is the network address?172.16.0.0
  3. 3172.16.35.2 Public or Private?Private
  4. 4192.168.3.5 Public or Private?Private
  5. 5192.0.3.15 Public or Private?Public
  6. 664.104.0.22 Public or Private?Public
  7. 710.55.3.168 Public or Private?Private
  8. 8172.99.1.1 Public or PrivatePublic
  9. 9Do routers forward broadcasts by default?No
  10. 10What will excessive broadcast traffic cause?Slow network and device operations.
  11. 11What is the subnet mask and prefix for 25 hosts? (Use binary to help)255.255.255.224
    /27
  12. 12What is the subnet mask and prefix for 1000 hosts? (Use binary to help)255.255.252.0
    /22
  13. 13192.168.5.0/24 Each subnet requires 50 users. Calculate the subnet mask, the prefix, and the first, second, and last subnet ranges.Subnet mask 255.255.255.192
    Prefix /26
    First 192.168.5.0 - 192.168.5.63
    Second 192.168.5.64 - 192.168.5.127
    Last 192.168.5.192 - 192.168.5.255
  14. 14192.168.5.64 - 192.168.5.127 This is a subnet in a /26 network. Subnet this further to accommodate 20 users. Calculate the subnet mask, prefix, and address ranges.Subnet mask 255.255.255.224
    Prefix /27
    First 192.168.5.64 - 192.168.5.95
    Last 192.168.5.96 - 192.168.5.127
  15. 15How many valid hosts are there on an IPv4 subnet with a /26 mask?62
  16. 16What is the subnet mask for /20255.255.240.0
  17. 17With variable-length subnet masking, can the size of each subnet be different, or will they all be the same.Different sizes.
  18. 18Why does a layer 3 device perform the ANDing process on a destination IP address and its subnet mask?The IP address on its own could mean anything, the device needs to know what the network address is.
  19. 19What is the subnet mask when 4 host bits are available?255.255.255.240
  20. 20How many host addresses are available on a /28 mask?14 useable
  21. 21Does a duel stack network run native IPv6?Yes, a dual stack is where IPv6 is native, but it will coexist there with IPv4 until IPv6 makes a full transition.
  22. 22Compress the IPv6 address 2001:0000:0db8:1111:0000:0000:0000:02002001:0:db8:1111::200
  23. 23What is the recommended prefix length for most IPv6 networks?/64
  24. 24What part of the GUA is assigned by the ISP?The global routing prefix
  25. 25Does the GUA subnet ID need to borrow bits from the interface ID?No
  26. 26What addresses stat with fe80::Link-local addresses
  27. 27Devices will rely entirely on the router advertisement message for addressing when using what type of dynamic addressing method?SLAAC
  28. 28What does the Stateful DHCPv6 do?It allows devices to get all their addressing configuration from the DHCPv6 server by sending a DHCPv6 solicit message. Only the default gateway will be obtained from the router advertisement message.
  29. 29When devices obtain their IP configuration from the router advertisement message, and request DNS information from the DHCPv6 server, what dynamic addressing method are they using?SLAAC and DHCPv6
  30. 30What methods can an IPv6 device use to generate its interface ID?It can be randomly generated, or generated with EUI-64.
  31. 31With a /48 global routing prefix, and a /64 prefix, what is the subnet portion of this address 2001:db8:cafe:1111:2222:3333:4444:55551111
  32. 32What is the prefix of this address 2001:DB8:D15:EA:CC44::1/642001:DB8:D15:EA::/
    (The prefix is the global routing prefix and the subnet ID)
  33. 33What type of address is automatically assigned when IPv6 is enabled on an interface?The link-local address
  34. 34Does IPv6 support broadcasts?No
  35. 35A successful ping to the loopback ::1 means what?The host has directed traffic to itself and its TCP/IP stack is properly configured.
  36. 36Any IPv6 interfaces will at a bare minimum need what type of address?A link-local
  37. 37What are the three parts of an IPv6 GUA?Global routing prefix.
    Subnet ID
    Interface ID
  38. 38What information does the prefix length give you about an IPv4 address?It tells you what the subnet mask is, and how many bits are borrowed for the network portion.
  39. 39What is a unicast address?An address belonging to a single device.
  40. 40What is a limited broadcast?A broadcast that transmits to all devices on the LAN.
  41. 41What is a direct broadcast and how does it work?A broadcast to all devices on a remote network. The IPv4 address will consist of the network portion and .255 for the broadcast.
  42. 42What is an advantage of subdividing networks?It eliminates excessive broadcast traffic.
  43. 43What is a multicast?A broadcast sent to a group of hosts using the same multicast address.
  44. 44What is this address range used for 224.0.0.0 - 239.255.255.255Multicast addresses.
  45. 45Provide the private address range for 10.0.0.0/810.0.0.0 - 10.255.255.255
  46. 46Provide the private address range for 172.16.0.0/12172.16.0.0 - 172.31.255.255
  47. 47Provide the private address range for 192.168.0.0/16192.168.0.0 - 192.168.255.255
  48. 48What does a router use to translate a private source address into a public address? What about the destination address?It is translated using NAT. As for the destination, it will already be a public address.
  49. 49What sort of devices would be found in an organisation's DMZ?Anything available to the internet, such as servers.
  50. 50Addresses beginning in 127.0.0.0/8 are what?Loopback addresses
  51. 51What is the link-local address range? (169.254.0.0/16)169.254.0.0 - 169.254.255.254
  52. 52There are no DHCP servers available. What does the DHCP client do?It uses the link-local address to self-configure.
  53. 53Who manages IPv4 and IPv6?The Internet Assigned Numbers Authority (IANA).
  54. 54What do IANA do with IP addresses?Assign them to the Regional Internet Registries (RIR).
  55. 55A new ISP is established and needs addresses to assign address blocks to its customers. Where does the ISP get addresses from?Their Regional Internet Regestry.
  56. 56Where will a broadcast domain end?At the router interface it is connected to.
  57. 57What are some factors that may determine how you segment a network?The location (floor 1, floor 2...)
    The group/function (e.g., students, HR, accounting, guests).
    The device type (printers, hosts, servers)
  58. 58Will a device's public IP address remain static as it connects to different networks?No, it will change based on the network it is connected to.
  59. 59Name the three IPv4 to IPv6 migration techniques.Duel Stack
    Tunneling
    NAT64
  60. 60An IPv6 packet needs to transmit through an IPv4 network to reach another IPv6 network. What is the problem here and how can this be solved.An IPv4 network will not be able to process an IPv6 packet. By using tunneling, the IPv6 packet will be encapsulated inside an IPv4 packet and then de-encapsulated at the other end.
  61. 61What is NAT64?IPv4 and IPv6 packets are translated from one type to the other. It allows both types of IP devices to communicate.
  62. 62Why is a 64-bit prefix recommended for IPv6 addresses?SLAAC uses 64 bits for the interface ID. It also makes subnetting easier to create and manage.
  63. 63Briefly state what an IPv6 anycast is.A unicast sent to multiple devices.
  64. 64An IPv6 packet need to be broadcasted, how will this be done?An all-nodes multicast will do the job.
  65. 65What is a global unicast address?An IPv6 address, equivalent to a public IPv4.
  66. 66What is significant about the first three bits of the GUA?It is the part assigned by ICANN before they give out address blocks to the RIRs.
  67. 67What would a subnet-router anycast address look like?The GUA interface ID would be the lowest address on the network consisting of all 0s.
    For example: 2001:db8:5512:3311::
  68. 68What is an IPv6 link-local address?The private address of a device on an IPv6 network.
  69. 69The router's LLA on an IPv6 network will serve as what?The default gateway address.
  70. 70What IPv6 address do routers use to send routing updates to other routers?The interface LLA.
  71. 71What are two methods that a device will use to dynamically obtain its IPv6 GUA?Stateless Address Autoconfiguration (SLAAC)
    DHCPv6
  72. 72What makes it feasible to use the same link-local address on all router interfaces?Packets with a link-local address will not leave the network.
  73. 73What is the router solicitation message used for?Devices send this to their local router when they need IPv6 addressing information.
  74. 74What will typically be included in a router advertisement message?Network prefix
    Prefix length
    Default gateway address
    DNS address
    Domain name
  75. 75How does SLAAC work?The IPv6 devices obtains all addressing information from the RA. THe interface ID is generated either randomly, or with EUI-64.
  76. 76A device uses SLAAC and stateless DHCPv6 to obtain addressing information. How does this work?DHCPv6 server is used to obtain the DNS server and domain name.
    The RA provides everything else.
  77. 77What does the Extended Unique Identifier (EUI-64) process use when generating an interface ID?The device's MAC address; 16 bits are inserted into the middle of it. This is the interface ID.

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Beschreibung
IT Certification Computer Networking Karteikarten am NetAcad 11 - 13, erstellt von Scott Jones am 12/12/2022.
Erstellt von
Scott Jones · Dez 2022
Aktualisiert
14 Dez 2022
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