What is the network number of address 10.30.45.22 with a subnet mask of 255.224.0.0?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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What is the network number of address 10.30.45.22 with a subnet mask of 255.224.0.0?

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Introduction

Network address:

The network address identifies a particular network in a network of addresses. The network address can be calculated by using the AND operation of IP-address of node (or host) or subnet address results the network address.

AND operation:

The AND (&&) operation yields true (1)if the two operands are true or 1 otherwise results in false or 0.

A B A &&B
0 0 0
0 1 0
1 0 0
1 1 1
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