Answer / shahin

Subnet Mask:
Subnet mask is a 32 bits value which
differentiate the host portion & network portion of an IP
address.

Where network portion is designate by the 1's & host portion
0's.


Wild card Mask:
Wild card mask defines which IP addresses are
allowed & which are blocked.

Where 0's defines the accurate match where non zero value
defines any value on the corresponding octete.

Answer / jitendera sinha

well shahin good to see you here again

subnet mask---subnet mask is the value which determine from
which class the ip address is realted.

wild mask-- Wild card mask defines which IP addresses are
allowed & which are blocked and used in extended access
list and ospf also.

Answer / shahin

Mr. S.M.Feroz Ahmed, Nice to see you here in Allinterview
Forum....

Could you please explain on which book & How the range of IP
address would be 191 to 227....???

Will be thankful if u let us know about it????

C ya...

Answer / sarbjeet sohi

Subnet-mask is used to match contigous bits, means in subnet mask there is no 1 after 0. Its always from high (1's) to low (0's).
EXAMPLE:- subnetmask-----255.255.0.0
BInary----- 11111111.11111111.00000000.00000000

In above example there is continous 1's and continous 0's
It cannot be like this :-

11111111.00000000.11111111.00000000 = 255.0.255.0
Because subnet mask is used only for the classful and when CIDR comes WILDCARD mask is launched. The above bit pattern in WCM tells to match 2nd and 4th octect.1st and 3rd can be ignored.

Answer / s.m.feroz ahmed

Hi,

Subnet mask is classified on class A,B,C,D,E at present we
are making use of class C ip addressing and the series of
class C starts from 191 to 227 so depending on class subnet
mask is defined for Class A subnet mask is 255.255.255.0
for Class B it is 255.255.0.0 and class C it is 255.0.0.0
and wildcard mask is just opposite to Subnet mask and it is
defined as 0.0.0.255 .

Answer / anshul johari

SUBNET- MASK IS A 32-BIT IP ADDRESS. AND IP ADDRESS TWO
DIVIDED NETWORK ID AND HOST ID. AND SUBNET MASK A SETTING IN
ALL BITS REPRESENTED "1" IS SIGNIFICANT AND "0" IS IN-
SIGNIFICANT.

WILDCARD MASK IS NOTHING BUT OPPOSITE TO SUBNET MASK SUBNET
MASK A SETTING IN ALL BITS REPRESENTED "0" IS SIGNIFICANT AND
"1" IS IN-SIGNIFICANT.

Identify the default values that make up IGRP's composite metric? A.) Bandwidth B.) Load C.) Reliability D.) MTU E.) Delay

1 Answers  

How does L2TP process?

0 Answers   CCIE,

What are the two types of access lists that can be configured on a Cisco router? A. Standard B. Extended C. Filtering D. Packet

2 Answers  

What type of frame does CDP use to gather information about it's neighbors? A.) TCP/IP B.) Novell-ether C.) Subnetwork Access Protocol (SNAP) D.) Ethernet_II

1 Answers  

Which two statements about integrated services digital network (ISDN) are true? A. ISDN provides data only capability B. ISDN provides an integrated voice/data capability C. The ISDN standards define the hardware and call setup schemes for end the end digital connectivity D. Users receive more bandwidth on WANS with a leased lin of 56 Cops than with multiple B channels

1 Answers  

What is the command for change serial cost?

0 Answers  

Name the protocol which can do load balancing on unequal cost also?

0 Answers  

What are the different types of the password used in securing a cisco router?

0 Answers  

What was the key reason the International Organization for Standardization released the OSI model? A. users could access network servers faster B. different vendor networks could work with each other C. the industry could create a standard for how computers work D. network administrators could increase the overall speed of their network

1 Answers  

The benefits to segmenting with Bridges are which of the following? A.) Scalability B.) Datagram filtering C.) Manageability D.) Reliability

1 Answers  

What does a Standard IP Access-list use as test criteria? A.) IP source address B.) IP source and destination address, protocol numbers and port numbers C.) IPX source and destination address D.) Source MAC address

2 Answers  

The two sublayers of the IEEE Data Link Layer are which of the following? A.) Link and Logical Control B.) Data Link and LLC C.) Logical Link Control and Media Access Control D.) Data Link and MAC

2 Answers