Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
29 Cards in this Set
- Front
- Back
|
What happens if a host does not have a gateway
|
Cannot connect to internet or any computers past broadcast range
|
|
|
3 private address ranges
|
10.0.0.0
172.16.0.0 192.168.0.0 |
|
|
what is an address space
|
range of addresses associated with a given address block.
|
|
|
difference between a network and a subnet
|
subnet refers to single broadcast domain. network can refer to a single subnet or a group of interconnected subnets.
|
|
|
how many addresses in a /24 network
|
256
|
|
|
how many addresses in a /25 network
|
128 addresses in a /25 network
|
|
|
how many addresses in a /26 network
|
64 addresses
|
|
|
how many addresses in /23 network?
|
512
|
|
|
how many addresses in 255.255.248.0?
|
equivalent to:
1111 1000 Thus, 11 bits available for hosts 2^11 are available. OR, knowing that 8 bits is 256, we go: 256*2=512 512*2=1024 1024*2=2048 Thus, there are 2048 addresses available |
|
|
Does an address block get larger or smaller If the subnet mask is lengthened
|
it will get smaller
|
|
|
How many hosts for /20
|
4096
|
|
|
what is /20 in dotted decimal notation
|
255.255.240.0
|
|
|
/21
|
255.255.248.0
|
|
|
#hosts /21
|
2048
|
|
|
/22
|
255.255.252.0
|
|
|
#hosts /22
|
1024
|
|
|
/23
|
255.255.254.0
|
|
|
#hosts /23
|
512
|
|
|
/24
|
255.255.255.0
|
|
|
#hosts /24
|
256
|
|
|
/25
|
255.255.255.128
|
|
|
#hosts /25
|
128
|
|
|
/26
|
255.255.255.192
|
|
|
#hosts /26
|
64
|
|
|
/27
|
255.255.255.224
|
|
|
#hosts /27
|
32
|
|
|
/28
|
255.255.255.240
|
|
|
#hosts /28
|
16
|
|
|
How is host capacity determined
|
subtract 2 from the total #hosts. 1 is for network and the other for is for broadcast
|
