Answer / Suneeta Kumari

IPSec (Internet Protocol Security) is a protocol suite used to secure Internet communications by encrypting and authenticating IP packets. It consists of multiple components:
1. ISAKMP/IKE (Internet Security Association and Key Management Protocol/Internet Key Exchange): Used for negotiating security associations (SAs).
2. SAD (Security Associations Database) & SPD (Security Policy Database): SAD stores the details of all established security associations, while SPD defines the security policy rules used by IPSec.
3. SA (Security Associations): These are established between two communicating devices and define the cryptographic algorithms, keys, and modes to be used for securing data exchange.
4. AH (Authentication Header) & ESP (Encapsulating Security Payload): AH provides integrity and authentication of IP packets, while ESP encrypts and authenticates them.

What are the three phases of PPP session establishment? A. Link establishment phase B. Authentication phase C. Network layer protocol phase D. Handshake phase E. Dial-in phase

2 Answers  

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Identify the 2 characteristics that TCP and UDP share in common? A.) Both use port numbers to identify upper level applications B.) Operate at the Network layer C.) Both are Transport protocols D.) Both are reliable communications

3 Answers  

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hi friends i have some problem regarding technical round ahr round plz tell me what should the right answer technical questions 1 what is brouter 2 what is the menaing of 10 base2, 10 base 5 and 10baset 3 what is diffrence between bit rate and baud rate. and this question was tooooooooooo much difficult to me that hr said to me that rank me after the taking the all short of interview

5 Answers  

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1.hi all, my question is how maximum number of ports can exist in a switch? 2.Which type of switching good in using and why?

4 Answers   HCL,

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A ISDN PRI circuit can be described as which of the following? A.) 24 B channels and 1-64Kbps D channel B.) 23 B channels and 1-64Kbps D channel C.) 2-D channels and 1-C channel D.) 2-64Kbps B channels and 1-16Kbps D channel

1 Answers  

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Identify the purpose of the wildcard mask? A.) Match a certain portion of the IP address while ignoring the rest of the address B.) Determine the class of the IP address C.) Determine the network portion of an IP address D.) Hide the host portion of an IP address

1 Answers  

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Identify the OSI layer associated with bits? A.) Physical B.) Network C.) Binary D.) Data link

2 Answers  

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why we assingn the wild card mask in the use of ospf and access list.

6 Answers   IBM,

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Which command listed below sets the banner message when someone connects to the router? A.) message # B.) banner # C.) login banner # D.) description # E.) login description # F.) banner motd #

2 Answers  

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Which OSI layer defines end to end communication, segmentation and re-assembly? A.) Network B.) Transport C.) Physical D.) Application E.) Data-Link F.) Presentation

1 Answers  

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Why we use filter option?

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take a pen and copy before solving that question there is a router name Ra there is two switch sw1 and sw2 sw1 is coneceted through fa0/1 interface of router Ra sw2 is conected through the fa1/1 serai interface of router s0/1 conected through the isp with it ip address 192.168.1.1 now therer are three host conexted through the sw1 and having ip host1=10.1.2.1 host2=10.1.2.2 host3=10.1.2.3 now there is also 3ree host conected through switch 2 i.e sw2 having ip host4=10.1.1.1 host 5=10.1.1.2 host 6=10.1.1.3 now i think u have made corect confrigation.now questios is started network admin configure the Ra router in that fassion Ra(config)#access-list 2 permit 10.1.1.0 0.0.0.255 Ra(config)#line vty 0 4 ra(config)#access-class 2 in now question is that why should network admnistratoe do it in this maneer A to give access sw1 host to acess internet B to prevent sw1 host from acessing comand promt c to prevent sw2 host from accessing console of router ra D to give sw2 host access to the enternet e prevent sw1 host from accessing internet f to prevent sw1 host from acessing the sw2 host network isp------(s0/1)..RA..(fa1/1)---SW2-host (4,5,6) | | (sw1)------host 1,2,3 this is not exect digarm but help to derive the diagram plz answer as soon as possible

6 Answers   AT&T,

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