FUNDAMENTALS OF COMPUTER

TELECOMMUNICATIONS SYSTEMS

NETWORK ARCHITECTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which one of the following best describes the use of the ‘Netmask’?
A
A unique device identifier
B
A default pathway
C
A network identifier
D
A network security option
Explanation: 

Detailed explanation-1: -Netmask is a term used in computer networking to define the class and range of Internet Protocol (IP) addresses. Netmask provides the available number range of IP addresses From Class A to Class C, and specifies a mask to divide these networks into sub-networks (subnets).

Detailed explanation-2: -A Netmask is a 32-bit “mask” used to divide an IP address into subnets and specify the network’s available hosts. In a netmask, two bits are always automatically assigned. For example, in 255.255. 225.0, “0” is the assigned network address.

Detailed explanation-3: -A subnet mask is a 32-bit number created by setting host bits to all 0s and setting network bits to all 1s. In this way, the subnet mask separates the IP address into the network and host addresses. The “255” address is always assigned to a broadcast address, and the “0” address is always assigned to a network address.

Detailed explanation-4: -The subnet mask is used in IPv4 and IPv6 to show what part of the address is the network portion and what part of the address is the host portion.

There is 1 question to complete.