CIDR Notation and Subnet Mask Quiz
20 Questions
100 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What does CIDR stand for?

Classless Inter Domain Routing

CIDR Notation is another way of displaying a ___________.

Subnet Mask

What is the subnet mask for /8?

255.0.0.0

What is the subnet mask for /16?

<p>255.255.0.0</p> Signup and view all the answers

What is the subnet mask for /24?

<p>255.255.255.0</p> Signup and view all the answers

Is /32 a possible CIDR value?

<p>False</p> Signup and view all the answers

How many 1's are in /16?

<p>16</p> Signup and view all the answers

Why use CIDR notation?

<p>Shorthand</p> Signup and view all the answers

Subnet masks go from right to left.

<p>False</p> Signup and view all the answers

What do we know if a CIDR value is divisible by 8?

<p>Subnet Mask: 255.0.0.0 /8; 255.255.0.0 /16; 255.255.255.0 /24</p> Signup and view all the answers

The IPv4 address worksheet looks like?

<p>128|64|32|16|8|4|2|1</p> Signup and view all the answers

What is the value of an octet with all 8 bits set to 1?

<p>255</p> Signup and view all the answers

What is the value of an octet with all 8 bits set to 0?

<p>0</p> Signup and view all the answers

What is the subnet mask for /12?

<p>255.240.0.0</p> Signup and view all the answers

What is CIDR Syntax?

<p>/N</p> Signup and view all the answers

What is the valid range of values for CIDR notation?

<p>/1 - /31</p> Signup and view all the answers

What does VLSM stand for?

<p>Variable-length subnet masking</p> Signup and view all the answers

To what does /N refer?

<p>Leading 1 bits in the routing mask</p> Signup and view all the answers

The routing mask was traditionally called?

<p>Network mask</p> Signup and view all the answers

192.168.100.14/24 represents?

<p>Routing prefix 192.168.100.0 &amp; subnet 255.255.255.0</p> Signup and view all the answers

Study Notes

CIDR Overview

  • CIDR stands for Classless Inter Domain Routing.
  • CIDR notation is an alternative representation for subnet masks.
  • It simplifies subnetting by providing a concise way to indicate the size of a network.

CIDR Notation and Subnet Masks

  • The subnet mask for /8 is 255.0.0.0.
  • The subnet mask for /16 is 255.255.0.0.
  • The subnet mask for /24 is 255.255.255.0.
  • /32 is not a valid CIDR value since it equates to a subnet mask of 255.255.255.255.

Binary Representation

  • A CIDR value of /16 indicates there are 16 leading 1's in the subnet mask.
  • Each octet, with all bits set to 1, has a value of 255; with all bits set to 0, the value is 0.
  • The IPv4 address worksheet is represented as: 128|64|32|16|8|4|2|1.

CIDR and Subnetting Benefits

  • CIDR notation serves as a shorthand to simplify subnetting processes.
  • Subnet masks are always read from left to right, not right to left.
  • CIDR values divisible by 8 correspond to specific subnet masks:
    • /8: 255.0.0.0
    • /16: 255.255.0.0
    • /24: 255.255.255.0.

VLSM and Routing Masks

  • VLSM stands for Variable-Length Subnet Masking, which allows for more efficient IP address space utilization.
  • The /N in CIDR refers to the number of leading 1 bits in the subnet mask used for routing.
  • The traditional term for the routing mask is network mask.

Address Representation

  • An IPv4 address like 192.168.100.14/24 represents the routing prefix 192.168.100.0 with a subnet mask of 255.255.255.0.
  • The valid range for CIDR notation is from /1 to /31.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Description

Test your understanding of CIDR notation and subnet masks with this quiz. You'll learn the meanings behind CIDR values and associated definitions. Perfect for networking students or professionals looking to refresh their knowledge!

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser