Networks and Security Interview Questions

HCP (D)Discover DHCP (O)ffer DHCP (R)equest DHCP (A)ck Step 1: Your computer sends a "Discovery" request, asking for its IP information from any listening DHCP servers. Step 2: Any listening DHCP ...

check this vedio this might help:
http://www.youtube.com/watch?v=0Dp7YoR0SLE&feature=g-user-u

There is nothing like security protocol. apply security using the routing protocols. access-lists is the main feature or you can say technology that is used to permit/deny the traffic in/out of the ne...

To configure VPN at four locations, the need for hardware is dependent on requirements. once hardware is selected, static ips may not be needed if three of the four locations are talking back only to ...

First you have to purchase 4 routers for each branch. then four static ip address through internet service provider & set the ip addresses as per given below1.  for 1st branch router wan addr...

No. Does a good bullet-proof vest secure one from death? First you must actually wear the vest (correctly), and even then, you might get struck by a bus, drown or have a heart attack! Assuming the f...

true

Go to Start-> Run and type \ipaddress or \computer name

Go to Start ->Run 
Type "ip address" or "computer name"

how to block local area network , all user not deney and open any user

Hi,Port blocking is possible if Switch is installed in LAN,Port blocking to particular port is possible only if Switch is installed in LAN.A particular port can be blocked by configuring Switch under ...

Routed protocols are the protocols that used with mostly Application, Presentation layers .. etc in other words they deal with your os system and how your PC , Ip phone ... etc will receive the data. ...

IP used by MICROSOFT
IPX used by NOVELL
APPLE TALK used by APPLE

Organization Unit is a means in which we can keep objects such as user accounts, groups, computer, printer . applications.It allows us to assign specific permission to the users. Benifits 1.OUs can b...

Organization Unit is like creating a group of users or computers in a domain so that we can apply policies easily to a group at a time.

The RSA algorithm as it makes use of unique prime number which is not the same each time when being generated.Hence we cannot debug the algorithm.

No we cannot debug RSA because for creating keys random prime is used so we cannot generate again same prime number therefore we cannot debug the RSA.

VPN is used to make remote connections i.e,it is used to connect remote sites or users together with the help of a public network (usually the Internet). It uses "virtual" connections routed through t...

Yes, The use of VPN is to secure connection between two private networks over the internet.

The mini operating rate wireless lan is 54 mbps

1 Mbps

network is divided in five classes class A consist of 32 bits in which first 8 bit is a network and rest is host part class B consist of 32 bits in which first 16 bit is a network part and rest is h...

there are 5 types of ip address they are class A,B,C,D,E

NAT means Network Address Translation , NAT helps the Private IP to route over the public Internet, its translate private IP to a public IP by one to one or many to one, PAT means Port Address Translation ,its translate based on source port

NAT : Short for Network Address Translation, an Internet standard that enables a local-area network (LAN) to use one set of IP addresses for internal traffic and a second set of addresses for externa...

It means that it is in class c network

Hi,

If a Computer has ip address 10.1.1.5 and subnet Mask 255.255.255.0 then it means it is classless ip address where class is not defined or not a subnetted ip address.

Provisioning is the process through which a service can be either activated or ceased based on the requirements of the business. The service can be:Pre-paid, post paid, fixed line services like broadband, IPTV, Landline etc.

Provisoning means ready to activate..

Cloud computing and networking

dns query is send on port 53 not on port no 80 . at first web browser send dns query with destination address of dns and after resolving the web site address . http get query send by browser using destination as web address and after session created by web server the data exchange will happen

HI All, once a web site is entered in the address bar and enter key pressed the following process happens. 1. The system performs a check on the dns cache to check if there is any entry for the ...

KC comment is correct.Apart from KC comment the error message that comes on the client of an AD is that Domain Controller is unavailable when Kerberos Authentication server(AD) is down.

Kerberos is a network authentication protocol which allows individuals communicating over an insecure network to authenticate to themselves in a secure manner.Kerberos makes use of the Key Distributio...

Hi,Classful and Classless Routing is defined as if particular ip address ex.192.168.1.1/24 this is defined as classfull routing and 192.168.1.1 without specific subnetting is defined as classless rout...

classfull routing protocols do not carry subnet mask information on their routing updates. Classless routing protocols do carry subnet mask information on their routing updates.ripv1 is a cl...

Hi,

Layer3 switches are installed and consistent to send only interested traffic to allow through the Network.Whereas Layer2 switches act as a interceptor in between layer3 switch and LAN.examples of Layer3 and Layer2 switches are Router and Switch.

L2 Switch, or L2VPN, is forwarding packets based on the MAC. In more depth, if you have 2 switches, switch#1 has been configured for 2 vlans, ports 2,3,4 for vlan111, and ports 5,6,7 for vlan222, and ...