Chapter 4- Configure Networking Flashcards
What is IPv4?
A 32 bit number that is styled as four 8 bit octets.
It has 2 parts, the network ID and the host ID. The network ID describes the network and host defines the specific device on it. It can be Unicast, Broadcast or Multicast.
What is DNS?
Domain name service is a service that allows users to type the name of the host instead of it’s IP address.
The DNS server resolves the name.
What is IPv6?
128 bit space with 16 bit boundaries.
What is a subnet mask?
The 32 bit number notated by four 8 bit octets that consist of a set of 1’s followed by a set 0’s. It is used to define which part of the IPv4 address is the network ID an hich part is the host ID. The 1’s donate network and 0’s donate the host. The default subnet masks are in the form 255.0.0.0 for class A
- 255.0.0 for class B
- 255.255.0 for class C
Translated 255.0.0.0 looks like
11111111 00000000 00000000 00000000
what would you type in cmd to configure IPv4 and IPv6 addresses?
netsh
What would be the command to apply a static IP for a host?
netsh interface ipv4 set address ‘Ethernet’ static 192.168.5.12 255.255.255.0 192.168.1.10.
Or from DHCP would be
netsh interface ipv4 set address name=”Ethernet” source+dhcp.
What is an APIPA?
Automatic Private Internet Protocol Address-
This is a local link (IP) address that is assigned by Windows when no other addressing mechanism can be found. This enables the host to function on the local network segment. Routers do not forward packets for these kinds of addresses.
What is a default gateway?
This hardware or software device let’s hosts connect to other networks. Often that network is the internet but could be another network segment in an enterprise domain.
What is DHCP?
Dynamic Host Configuration Protocol is a network protocol that enables a server to automatically assign an IP address to a computer from a defined range of numbers configured for a given network.
What 2 options do you have when you first connect to a loacl network?
No, Don’t turn on sharing or connect to devices- This is intended for public networks. The users computer cannot be seen and it cannot see others that are connected.
Yes, turn on sharing and connect to other devices- This option is intended for private and trusted networks.
Computers sit behind a trusted router and do not connect to the internet directly.
Which command line tools are available when investigating IP issues?
PING- sends packets to another TCP/IP computer and the receipt of these packets gives an indication as to the level of communication.
IPCONFIG and IPCONF /ALL- This displays the current TCP/IP network configuration values. It can also refresh DHCP and DNS settings. Common parameters with ipconfig are /release /renew /flushdns.
TRACERT- This tool dtermines the path taken to a destination and shows info about each hop a packet takes to get where it’s going. A hop is a pass through a router. You can use this to see where a transmission fails.
NETSTAT- This displays a list of active TCP connnections and the ports on which the computer is listening. It also displays Ethernet stats, the IP routing table and IPv4 and IPv6 stats.
What are the primary command line tools for troubleshooting host name resolution?
ipconfig and nslookup.
PowerShell alternatives are Get-NetIPAddress, Get-NetIPv4Protocol and Resolvednsname.
