Term
| What are public IP addresses used for? |
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Definition
| These are used for packets sent out of the internal network |
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Term
| What are private IP addresses used for? |
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Definition
| These are used for packets traversing an internal network. |
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Term
| How are packets transported at the Network Layer? |
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Definition
| transported from a source to its destination by Internet Protocol (IP) which uses logical or virtual addressing. |
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Term
| Who allocates public IP address numbers to organizations? |
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Definition
| Internet Assigned Numbers Authority (IANA) |
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Term
| How many bits are in an IPv4 address? |
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Definition
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Term
| How is an IPv4 address broken down? |
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Definition
| into 4 ocets of 8 bits each |
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Term
| What format are IPv4 addresses in? |
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Definition
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Term
| What do we call a common base 16 numbering system? |
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Definition
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Term
| How many bits does a hexadecimal character represent? |
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Definition
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Term
| What are the two parts of an IP address? |
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Definition
| Host address and network address |
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Term
| How many ocets are used for the network address in a Class A IP address? |
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Definition
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Term
| How many ocets are used for the network address in a Class B IP address? |
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Definition
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Term
| How many ocets are used for the network address in a Class C IP address? |
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Definition
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Term
| What are class D IPv4 addresses used for? |
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Definition
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Term
| What are class E IPv4 addresses used for? |
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Definition
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Term
| What is the first ocet decimal range for a Class A IP address? |
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Definition
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Term
| What is the first ocet decimal range for a Class B IP address? |
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Definition
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Term
| What is the first ocet decimal range for a Class C IP address? |
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Definition
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Term
| What is the first ocet decimal range for a Class D IP address? |
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Definition
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Term
| What is the first ocet decimal range for a Class E IP address? |
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Definition
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Term
| What is the 127.x.x.x range reserved for? |
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Definition
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Term
| Why can two host ID's not be used for each network ID? |
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Definition
| Because all 0's is the network address and all 1's is the broadcast address |
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Term
| Every subnet becomes an individual ________ domain |
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Definition
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Term
| What is used to signify the network ID in a subnet mask? |
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Definition
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Term
| Using the Boolean and method, what happens if one address has a 0 and the other has a 1 in a particular bit place? |
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Definition
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Term
| In the Boolean and method, what must be true for the bit to be assigned a 1? |
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Definition
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Term
| What is the CIDR notation of a Class A address? |
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Definition
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Term
| What is the CIDR notation of a Class B address? |
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Definition
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Term
| What is the CIDR notation of a Class C address? |
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Definition
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Term
| What should be assigned to the first IP address of a subnet? |
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Definition
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Term
| What is the command that can be used on Windows based hosts to get all the IP information for a network? |
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Definition
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Term
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Definition
| Network Address Translation |
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Term
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Definition
| Multiple devices to use a single public IP address |
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Term
| What does NAT eliminate that acts as natural security? |
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Definition
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Term
| What size companies were Class A private IP addresses designed for? |
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Definition
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Term
| What size companies were Class B private IP addresses designed for? |
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Definition
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Term
| What size companies were Class C private IP addresses designed for? |
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Definition
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Term
| What is the range for Class A private addresses? |
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Definition
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Term
| What is the range of class B private IP addresses? |
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Definition
| 172.16.0.0 - 172.31.255.255 |
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Term
| What are the range of Class C private IP addresses? |
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Definition
| 192.168.0.0 - 192.168.255.255 |
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Term
| A _______ NAT is the simplest form of Nat. It enables mapping of one IP address to another in a one-to-one relationship. |
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Definition
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Term
| ___________ NAT enables defining a pool of addresses to be translated along with a pool of addresses to which they are to be translated. |
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Definition
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Term
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Definition
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Term
| ___________ allows a single IP address to support multiple internal clients. When a host communicates with a server outside the NAT firewall, the first thing that it does is to access a specific port number. This is also used for return traffic. |
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Definition
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Term
| What translation type does Static NAT use? |
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Definition
| One to one IP address translation |
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Term
| What translation type does Dynamic NAT use? |
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Definition
| Many to many IP Address Translations |
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Term
| What translation type does PAT use? |
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Definition
| Many to one IP address Translations |
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Term
| What does the ip domain-lookup command do? |
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Definition
| forces cisco router to look for a DNS server inorder to resolve anything it gets on the CLI |
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Term
| What happens when a command is mistyped on a Cisco router? |
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Definition
| it attempts to resolve it via DNS |
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Term
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Definition
| Translates private IP addresses to public ones and vice versa |
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Term
| What was PAT developed to do? |
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Definition
| Translate multiple IP addresses on a private network to a single public IP address |
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Term
| ______________ can be defined as process of decoding larger IP networks into smaller sub-network. |
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Definition
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Term
| What does VLSM stand for? |
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Definition
| Variable Length Subnet Masking |
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Term
| What command will verify the status of NAT from a global perspective? |
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Definition
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Term
| What command will help to identify whether or not the NAT is working? |
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Definition
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Term
| What command filters the large running configuration to the interfaces that are important. (For example as the ip nat inside interface and the ip nat outside interface.)? |
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Definition
| running- config interface |
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Term
| When troubleshooting connectivity problems, what is the first issue? |
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Definition
| Whether the host can ping other hosts inside the same subnet. |
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Term
| If you cannot ping within the local subnet, what are the two most likely problems? |
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Definition
| incorrect IP/subnet mask configurations, or a problem with the underlying Ethernet |
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