Term
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Definition
| An ipv4-to-ipv6 transition protocol that provides automatic tunneling of IPv6 traffic over an IPv4 network. |
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Term
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Definition
The number of addresses available in an IP network number that can be
assigned to hosts. |
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Term
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Definition
| An address type used in IPv6 to allow a one-to-many relationship between source and destination; the packet is delivered to only one of the possible destination computers. |
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Term
| Automatic Private IP Addressing (APIPA) |
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Definition
A private range of IP addresses assigned to an
APIPA-enabled computer automatically when an IP address is requested via DHCP but no
DHCP server responds to the request. See also Dynamic Host Configuration Protocol
(DHCP). |
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Term
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Definition
| The bounds of a network that defines which devices must receive a packet that's broadcast by another device; usually an IP subnet. |
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Term
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Definition
| A method of expressing an IP address in the format A.B.C.D/n; n is the number of 1 bits in the subnet mask or the number of bits in the network ID. |
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Term
| Classless Interdomain Routing (CIDR) |
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Definition
A method of IP addressing in which the network and
host IDs are determined by a prefix number that specifies how many bits of the IP address
are network bits; the remaining bits are host bits. |
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Term
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Definition
| The use of IP addresses with their default subnet masks according to their address class: A, B, or C. |
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Term
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Definition
The format used to express an IPv4 address; four decimal numbers
separated by periods. |
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Term
| Dual IP layer architecture |
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Definition
| The current architecture of the IPv6 protocol in Windows, in which both IPv4 and IPv6 share the other components of the stack. |
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Term
| Extended Unique Identifier (EUI)-64 interface ID |
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Definition
| An autoconfigured IPv6 host address that uses the MAC address of the host plus an additional 16 bits. |
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Term
| Intra-Site Automatic Tunnel Addressing Protocol (ISATAP) |
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Definition
| An automatic tunneling protocol used to transmit IPv6 packets between dual IP layer hosts across an IPv4 network. |
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Term
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Definition
A value used to express how many bits of an IP address are network ID bits.
Usually expressed as /PrefixNumber—for example, 192.168.1.24/27, with 27 as the IP prefix. |
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Term
| Internet Protocol Version 4 (IPv4) |
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Definition
A connectionless Internetwork-layer protocol that
provides source and destination addressing and routing for the TCP/IP protocol suite. Uses
32-bit dotted decimal addresses. |
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Term
| Internet Protocol version 6 (IPv6) |
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Definition
A connectionless Internetwork-layer protocol that provides
source and destination addressing and routing for the TCP/IP protocol suite. Uses 128-bit
hexadecimal addresses and has built-in security and QoS features. |
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Term
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Definition
| An IP address that can be used to communicate only on the local subnet. It can't be routed to other networks. |
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Term
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Definition
The name used to refer to the loopback address in an IP network. See also
loopback address. |
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Term
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Definition
An address that always refers to the local computer; in IPv4, 127.0.0.1 is
the loopback address. |
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Term
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Definition
| A value assigned to the gateway based on the speed of the interface used to access the gateway. |
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Term
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Definition
| An address that identifies a group of computers running a multicast application. |
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Term
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Definition
| A network communication in which a packet is addressed so that more than one destination can receive it. |
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Term
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Definition
| A server with two or more NIC's each attached to a different IP network. Each NIC is assigned a network connection and requires it's own IP address. |
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Term
| Network Address Translation (NAT) |
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Definition
A service that translates a private IP address to a public
IP address in packets destined for the Internet, and then translates the public IP address in
the reply to the private address. |
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Term
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Definition
A grouping of 8 bits, often used to identify the four 8-bit decimal numbers that
compose an IP address (as in “first octet,” “second octet,” and so forth). |
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Term
| Port Address Translation (PAT) |
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Definition
An extension of NAT, a service that allows several hundred
workstations to access the Internet with a single public Internet address by using Transportlayer
port numbers to differentiate each host conversation. See also Network Address
Translation (NAT). |
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Term
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Definition
A 32-bit number in dotted decimal format, consisting of a string of eight or
more binary 1s followed by a string of 0s, that determines which part of an IP address is the
network ID and which part is the host ID. A binary 1 in the subnet mask signifies that the
corresponding bit in the IP address belongs to the network ID, and a binary 0 signifies that
the corresponding bit in the IP address belongs to the host ID. |
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Term
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Definition
| Subdivisions of an IP address space. |
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Term
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Definition
The process of dividing an IP network address into two or more subnetwork
addresses. See also subnet. |
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Term
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Definition
Reallocating bits from the network portion of an IP address to the host
portion, effectively combining two or more smaller subnets into a larger supernet. |
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Term
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Definition
| An automatic IPv6-over-IPv4 tunneling protocol that solves the problem of 6to4's requirement of a public IPv4 address and the inability to transverse NAT routers. |
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Term
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Definition
| A common network protocol technique that allows transmitting a packet in a format that would otherwise be incompatible for the network architecture by encapsulating the packet in a compatible header format. |
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Term
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Definition
| An address in a unit of network data intended for a single destination device. |
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Term
| Unique Local IPv6 address |
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Definition
| An address for devices on a private network that can't be routed on the internet. |
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Term
An IPv6 address is made up of how many bits?
a. 32
b. 48
c. 64
d. 128
e. 2456 |
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Definition
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Term
The subnet mask of an IP address does which of the following?
A. Provides encryption in a TCP/IP network
B. Defines network and host portions of an IP address
C. Allows automated IP address configuration
D. Allows users to use a computer's name rather than its address |
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Definition
| B. Defines network and host portions of an IP address |
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Term
Which of the following is needed if a computer with the IP address 172.31.210.10/24 wants to communicate with a computer with the IP address 172.31.209.122/24?
a. Hub
b. Router
c. Switch
d. Server |
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Definition
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Term
Which of the following is a private IP address and can't be routed across the Internet?
A. 192.156.90.100
B. 172.19.243.254
C. 11.200.99.180
D. 221.24.250.207
E. 12.12.12.12 |
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Definition
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Term
Which command should you use with a dual-homed server to make sure the server sends packets out the correct interface?
a. ipconfig
b. ping
c. tracert
d. route |
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Definition
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Term
Which command should you use to configure the primary DNS server on your computer?
a. ipconfig
b. netsh
c. nslookup
d. arp |
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Definition
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Term
Which IP address expressed in CIDR notation has the subnet mask 255.255.255.0?
a. /24
b. /16
c. /26
d. /18 |
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Definition
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Term
Which IP network address expressed in CIDR notation can support a maximum of 1022 hosts?
a. /24
b. /22
c. /26
d. /18 |
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Definition
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Term
The IP address 10.240.0.0/8 can't be assigned to a host.
True or False? |
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Definition
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Term
| What is the term for each grouping of 8 bits in an IP address? |
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Definition
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Term
When using TCP/IP, which of the following must computers on the same logical network have in common? (Choose all that apply.)
A. Network ID
B. Host ID
C. Subnet mask
D. Computer name |
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Definition
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Term
Which of the following IPv6 features is an enhancement to IPv4? (Choose all that apply.)
A. Larger address space
B. Works at the Internetwork and Transport layers
C. Built-in security
D. Connectionless communication |
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Definition
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Term
Which protocol can configure a computer's IP address and subnet mask automatically?
A. TCP
B. IP
C. ARP
D. DNS
E. DHCP |
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Definition
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Term
| How many bits must be reallocated from host ID to network ID to create 16 subnets? |
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Definition
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Term
For the Class C network address 192.168.10.0, which of the following subnet masks provides 32 subnets?
A. 255.255.255.252
B. 255.255.255.248
C. 255.255.255.240
D. 255.255.255.224 |
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Definition
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Term
How many host bits are necessary to assign addresses to 62 hosts?
A. 6
B. 5
C. 4
D. 3 |
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Definition
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Term
Which IP addressing process enables workstations to use private IP addresses to access the Internet?
A. Supernetting
B. NAT
C. DHCP
D. Subnetting |
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Definition
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Term
When a Windows computer is configured to use DHCP but no DHCP server is available, what type of address is configured automatically for it?
A. PAT
B. APIPA
C. NAT
D. Static |
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Definition
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Term
Which of the following represents a valid IPv6 address?
A. 2001:345:abcd:0:230:44
B. 2001:345:abcd::BEEF:44
C. 2001:345::abcd:0:79f::230:44
D. 2001:345:abcd:0:FEED:230:44 |
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Definition
| B. 2001:345:abcd::BEEF:44 |
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Term
Which of the following is a reason to subnet? (Choose all that apply.)
A. Networks can be divided into logical groups
B. Subnetting eliminates the need for routers
C. Subnetting can decrease the size of broadcast domains
D. There's no need to assign static IP addresses to each computer |
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Definition
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Term
Which of the following IP addresses has 12 bits in the host ID?
a. /16
b. /12
c. /8
d. /20 |
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Definition
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Term
You have a server with two NICs, each attached to a different IP network. You're having
problems communicating with devices on remote networks that send packets to one of the
interfaces. The server receives the packets fine, but the server's replies never reach the
intended destination network. Replies to packets that come in through the other interface seem to reach their destination without any problems. What can you do that will most likely solve the problem? |
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Definition
| Configure a second default gateway on the interface exhibiting problems. |
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Term
| You have just changed the IP address on a computer named computer5 in your domain from 172.31.1.10/24 to 172.31.1.110/24. You were communicating with this computer from your workstation fine right before you changed the address. Now when you try the command ping computer5 from your workstation, you don't get a successful reply. Other computers on the network aren't having a problem communicating with the computer. Which command might help solve the problem? |
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Definition
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Term
Which address can't be assigned to a host computer?
A. 192.156.90.100/16
B. 172.16.7.255/22
C. 11.200.99.180/25
D. 221.24.250.207/24 |
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Definition
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Term
Which ipv6 transition technology can be used with NAT routers and has the address prefix 2001::/32?
a. Teredo
b. ISATAP
c. 6to4
d. IPv6-over-IPv4 |
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Definition
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Term
How many bits are in the interface ID of an IPv6 address?
a. 32
b. 64
c. 16
d. 48 |
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Definition
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Term
What address should you ping if you want to test local IPv6 operation but don't want to actually send any packets on the network?
a. 1::f
b. 2001::db8
c. fe80::ffff
d. ::1 |
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Definition
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