1.4 Given a scenario, configure a subnet and use appropriate IP addressing schemes. Flashcards
What is the Internet Protocol (IP) address of a router on the same IP network as the host?
The default gateway is the Internet Protocol (IP) address of a router on the same IP network as the host.
The loopback address is used by administrators to verify if the Transmission Control Protocol (TCP)/IP is correctly installed on a local host.
A subnet mask is used to distinguish between the network ID and the host ID within a single IP address.
A virtual IP allows for multiple physical routers to serve as a single default gateway for a subnet. To do this, each router must have an interface connected to the subnet, with its own unique Media Access Control (MAC) address and IP address. They share a common virtual IP.
Select the Internet Protocol (IP) address that is in the Class B private address range.
Hosts communicating with one another over a Local Area Network (LAN) will typically use private addressing. Private Internet Protocol (IP) addresses can be drawn from one of the pools of addresses. The Class B private address range is 172.16.0.0 to 172.31.255.255. The answer option 172.20.105.003 falls within this range.
The addresses 169.254.0.0 to 169.254.255.255 are reserved for use by hosts for automatic private IP addressing, also known as link-local addressing.
The IP address 127.050.137.081 is reserved for loopback addresses. The range 127.0.0.0 to 127.255.255.255 is reserved for this purpose, to be used by administrators to verify if the Transmission Control Protocol (TCP)/IP is correctly installed on the local host.
The Class A private address range is 10.0.0.0 to 10.255.255.255.
A new physical web server receives power from and connects to the network in the communications closet. To ensure the server is ready to communicate with users in the various offices of the building, a network administrator verifies network service installation and that the server can communicate with a Layer 3 switch in the same closet. How may the network administrator carry out these tests? (Select all that apply.
The loopback address is a reserved address, typically an IPv4 address of 127.0.0.1. It is often used to check that TCP/IP is correctly installed on the local host.
The default gateway is the router. A layer 3 switch can operate on the network layer to route traffic. Pinging the gateway will verify that a path exists to eventually route to other offices.
The subnet mask is not a pingable IP address. A subnet mask distinguishes the network ID and host ID of a single IP address (e.g., 255.255.255.0).
A virtual IP is a shared IP address for representing, for example, a pair of web servers configured for load balancing. There is no virtual IP in this case.
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A network administrator is setting up a 192.168.1.0/24 network using variable length subnet masking (VLSM) to support the sales and marketing department. The sales department has 120 computers and the marketing department has 50 computers. Which of the following Internet Protocol (IP) address configurations will provide adequate support for the marketing department? (Select all that apply.)
The 192.168.1.128/26 network provides 62 assignable IP addresses in the range of 192.168.1.129 - 192.168.1.190. This is enough addresses to support the 50 computers of the marketing department.
The subnet mask of 255.255.255.192 is used for the 192.168.1.128/26 network. The network’s broadcast address is 192.168.1.191.
The 192.168.1.0/25 network provides 126 assignable IP addresses in the range of 192.168.1.1 - 192.168.1.126. The network’s broadcast address is 192.168.1.127.
The 192.168.1.192/27 network uses a subnet mask of 255.255.255.224 and provides 30 valid host IP addresses ranging from 192.168.1.193 to 192.168.1.222. This network’s broadcast address is 192.168.1.223.
What allows a network designer to allocate ranges of Internet Protocol (IP) addresses to subnets that match the predicted need for the number of subnets and hosts per subnet?
Variable Length Subnet Masks (VLSMs) allows a network designer to allocate ranges of Internet Protocol (IP) addresses to subnets that match the predicted need for numbers of subnets and hosts per subnet.
Classless Inter-Domain Routing (CIDR) uses bits normally assigned to the network ID to mask the complexity of the subnet and host addressing scheme within that network. CIDR is also sometimes described as supernetting.
Private addressing is used by hosts communicating within a Local Area Network (LAN).
Public addressing is used by hosts communicating with other hosts on different networks or over the Internet.
A new network administrator is going through the company’s network and surveying current network configurations. After examining a few hosts, the general Internet Protocol (IP) scheme starts with the first octet at 10 and all are using a default mask of 255.0.0.0. Which of the following would be true for this network? (Select all that apply.)
A Class A network can be identified by the first octet being in the range of 1-126. It supports large numbers of hosts over 16 million.
Private IP addresses are used for internal networks. They can be drawn from one of the pools of addresses defined in RFC 1918, or better known as Class A, B, and C private address ranges.
Public IP addresses are used and routable on the public network or the Internet. The allocation of these addresses is governed by IANA and administered by regional registries and Internet service providers (ISP).
A classless inter-domain routing (CIDR) notation of a /24 is representative of a Class C network that uses a subnet mask of 255.255.255.0.
