E6 IPV4 Flashcards
Describe base 2.
It is a numbering system, The digits range from 0 to 1, Each digit represents 1 bit, It is also called a binary
Describe base 8.
It is a numbering system, The digits range from 0 to 7, Each digit represents 3 bit, It is also called a octal
Describe base 10.
It is a numbering system, The digits range from 0 to 9, Each digit represents 3 1/3 bit, It is also called a decimal
Describe base 16.
It is a numbering system, The digits range from 0 to 9 and A to F, Each digit represents 4 bit, It is also called a hexadecimal.
Describe base 60.
(a) It is a numbering system. (b) The digits range from 0 to 59. (c) It is
used for time and angle measurement, including navigation. (d) Because
the digits are multi-character, in writing they are normally separated by
another character
Describe base 64.
It is a coding system. The characters includes A-Z, a-z, 0-9 and two others. Each character represents 6 bits. It is used for data transmitting as though it were text.
Describe base 256.
(a) It is a numbering system. (b) It uses multi-character ‘digits’ 0-255.
(c) Each digit represents 8 bits. (d) In writing the digits are normally
separated by dots.
What is an octet?
8 bits
How many bits in a byte?
8
How many bits in a nybble?
4
The number 0755 is assumed to be in what number base?
8
The number 755 is assumed to be in what number base?
10
What are the two meanings of kilo?
Ten to the third power, and two to the tenth power
What are the two meanings of meg?
Ten to the sixth power. Two to the 20th power.
What are the two meanings of gig?
Ten to the ninth power. Two to the 30th power.
In a net mask, what do the 1s mean?
The 1s indicate the part of the address that is the network number.
In a net mask, what do the 0s mean?
The 0s indicate the part of the address that is the host number.
What is the IPv4 special address range for the local network?
0.0.0.0/8
What is the Class A Private Address Range?
10.0.0.0/8
In the Class A Private Address Range, how many (classful) networks are there?
1
In the Class A Private Address Range, what is the first IP address?
10.0.0.0
In the Class A Private Address Range, what is the first host address?
10.0.0.1
In the Class A Private Address Range, what is the last IP address?
10.255.255.255
In the Class A Private Address Range, what is the last host address?
10.255.255.254
What is the local host Private Address Range?
127.0.0.0/8
What is the Link Local (APIPA) Private Address Range?
169.254.0.0/16
How are Link Local (APIPA) addresses assigned?
Each computer pick its own
What is the Class B Private Address Range?
172.16.0.0/12
In the Class B Private Address Range, how many (classful) networks are there?
16
In the Class B Private Address Range, what is the first IP address?
172.16.0.0
In the Class B Private Address Range, what is the first host address?
172.16.0.1
In the Class B Private Address Range, what is the last IP address?
172.31.255.255
In the Class B Private Address Range, what is the last host address?
172.31.255.254
What is the Class C Private Address Range?
192.168.0.0/16
In the Class C Private Address Range, how many (classful) networks are there?
256
In the Class C Private Address Range, what is the first IP address?
192.168.0.0
In the Class C Private Address Range, what is the first host address?
192.168.0.1
In the Class C Private Address Range, what is the last IP address?
192.168.255.255
In the Class C Private Address Range, what is the last host address?
192.168.255.254
What is the IPv4 global broadcast address?
255.255.255.255
What does CIDR stand for?
classless inter-domain routing
What does CIDR notation look like?
a slash followed by a number from 0 - 32, like /21
What is the other name for slash notation?
CDIR
What is the other name for CIDR?
slash notation
What does VLSM stand for?
variable length subnet mask
Software port numbers range from 0 up to what number?
65535
What is port 21 normally used for?
ftp or file transfer protocol
What is port 22 normally used for?
ssh, secure shell
What is port 23 normally used for?
telnet
What is port 25 normally used for?
What is port 443 normally used for?
https
What is a client?
a computer that makes requests
What is a server?
A computer that answers requests.
What is the well-known port number for web servers?
80
What is the well-known port number for secure web servers?
443
What is the well-known port number for file transfer protocol (ftp) servers?
21
What is the well-known port number for email servers?
25