Answer / rinkesh

because in the digital communication there are only two
voltage levels are used to communicate(to transfer or to
receive the signal), that are high voltage(1) and low voltage
(0). And easier to control the devices used in this type of
communication system.

Answer / ravi kumar

In digital signals, there are the signals in the form of 0
and 1 . so if any unauthorised user access the information
then can't understand the information.so for security
purpose, this technique is used rather then analog
technique.

Answer / preeti kumari(college of bio-m

1)almost all electronic devices use digital signals,because they remain accurate in shape and amplitude.2)transmission is at a higher rate and with a wider broadband width.3)it enables multi-directional transmission simultaneously.4)there is minimal electromagnetic interference in digital technology

Answer / pavithranagamani

Digital signals have only two levels such as binary 0 and 1.so if noise is interfered,then it can be easily detected and recovered.Thus the error recovery is greatly utilised.But in analog signal,the signal has various voltage level at various time.

Answer / peter jensen

My business is camera stabilizers for motion picture cameras.

We use analogue servo systems because the analogue servo loop is much smoother and stability is much better than digital servo systems. Operating a high performance analogue servo stabilizer (panning/tilting/rolling the camera) is smoother, powerful and trouble-free.

Answer / mahendra

In the nature we r having all the signals in analog form and
some of these signals can not processed in the digital
systems.so,,we convert these analog signals into digital
signals and preferred.

Answer / bala kumar

simple thing is it is easier to control than analog and it also offers less room for noise..
so the signal transmitted is more accurate..

• Tell me a bit about the capabilities of Exchange Server. • What are the different Exchange 2003 versions? • What's the main differences between Exchange 5.5 and Exchange 2000/2003? • What are the major network infrastructure for installing Exchange 2003? • What is the latest Exchange 2003 Service Pack? Name a few changes in functionality in that SP. • What are the disk considerations when installing Exchange (RAID types, locations and so on). • You got a new HP DL380 (2U) server, dual Xeon, 4GB of RAM, 7 SAS disks, 64-bit. What do you do next to install Exchange 2003? (you have AD in place) • Why not install Exchange on the same machine as a DC? • Are there any other installation considerations? • How would you prepare the AD Schema in advance before installing Exchange? • What type or permissions do you need in order to install the first Exchange server in a forest? In a domain? • How would you verify that the schema was in fact updated? • What type of memory optimization changes could you do for Exchange 2003? • How would you check your Exchange configuration settings to see if they're right? • What are the Exchange management tools? How and where can you install them? • What types of permissions are configurable for Exchange? • How can you grant access for an administrator to access all mailboxes on a specific server? • What is the Send As permission? • What other management tools are used to manage and control Exchange 2003? Name the tools you'd use. • What are Exchange Recipient types? Name 5. • You created a mailbox for a user, yet the mailbox does not appear in ESM. Why? • You wanted to change mailbox access permissions for a mailbox, yet you see the SELF permission alone on the permissions list. Why? • What are Query Based Distribution groups? • What type of groups would you use when configuring distribution groups in a multiple domain forest? • Name a few configuration options for Exchange recipients. • What's the difference between Exchange 2003 Std. and Ent. editions when related to storage options and size? • Name a few configuration options related to mailbox stores. • What are System Public Folders? Where would you find them? • How would you plan and configure Public Folder redundancy? • How can you immediately stop PF replication? • How can you prevent PF referral across slow WAN links? • What types of PF management tools might you use? • What are the differences between administrative permissions and client permissions in PF? • How can you configure PF replication from the command prompt in Exchange 2003? • What are the message hygiene options you can use natively in Exchange 2003? • What are the configuration options in IMF? • What are virtual servers? When would you use more than one? • Name some of the SMTP Virtual Server configuration options. • What is a Mail Relay? Name a few known mail relay software or hardware options. • What is a Smart Host? Where would you configure it? • What are Routing Groups? When would you use them? • What are the types of Connectors you can use in Exchange? • What is the cost option in Exchange connectors? • What is the Link State Table? How would you view it? • How would you configure mail transfer security between 2 routing groups? • What is the Routing Group Master? Who holds that role? • Explain the configuration steps required to allow Exchange 2003 to send and receive email from the Internet (consider a one-site multiple server scenario). • What is DS2MB? • What is Forms Based Authentication? • How would you configure OWA's settings on an Exchange server? • What is DSACCESS? • What are Recipient Policies? • How would you work with multiple recipient policies? • What is the "issue" with trying to remove email addresses added by recipient policies? How would you fix that? • What is the RUS? • When would you need to manually create additional RUS? • What are Address Lists? • How would you modify the filter properties of one of the default address lists? • How can you create multiple GALs and allow the users to only see the one related to them? • What is a Front End server? In what scenarios would you use one? • What type of authentication is used on the front end servers? • When would you use NLB? • How would you achieve incoming mail redundancy? • What are the 4 types of Exchange backups? • What is the Dial-Tone server scenario? • When would you use offline backup? • How do you re-install Exchange on a server that has crashed but with AD intact? • What is the dumpster? • What are the e00xxxxx.log files? • What is the e00.chk file? • What is circular logging? When would you use it? • What's the difference between online and offline defrag? • How would you know if it is time to perform an offline defrag of your Exchange stores? • How would you plan for, and perform the offline defrag? • What is the eseutil command? • What is the isinteg command? • How would you monitor Exchange's services and performance? Name 2 or 3 options. • Name all the client connection options in Exchange 2003. • What is Direct Push? What are the requirements to run it? • How would you remote wipe a PPC? • What are the issues with connecting Outlook from a remote computer to your mailbox? • How would you solve those issues? Name 2 or 3 methods • What is RPC over HTTP? What are the requirements to run it? • What is Cached Mode in OL2003/2007? • What are the benefits and "issues" when using cached mode? How would you tackle those issues? • What is S/MIME? What are the usage scenarios for S/MIME? • What are the IPSec usage scenarios for Exchange 2003? • How do you enable SSL on OWA? • What are the considerations for obtaining a digital certificate for SSL on Exchange? • Name a few 3rd-party CAs. • What do you need to consider when using a client- type AV software on an Exchange server? What are the different clustering options in Exchange 2003? Which one would you choose

0 Answers  

What is the state if the RED LED is glowing on PWSx card What is the state if the YELLOW LED is glowing on PWSx card

0 Answers   NSN,

Why thyristors are not preferred for inverters?

0 Answers  

State different methods of voltage control inverters. Describe about pwm control in inverter?

0 Answers  

Which type of connector we use in FIFA card?

0 Answers   NSN,

how to cancel cable inductance in power supplies without adding any ckt parallel to cable?

2 Answers  

why we prefer LED as light source insted of Laser in FSO (FREE SPACE OPTIC)communication.plz give me answer soon

3 Answers  

Explain why bjt is known as current controlled device and fet is known as voltage controlled device?

0 Answers  

is there any method to interact with LnT ER300P trivector meters and fetch data from that online from remote? the distance between the meter and the pc will be about 4 km.plz reply.thanks

0 Answers   Mitsubishi,

i am appearing for the test of NIC SCIENTIC OFFICERS. so please anybody could mail me its placement paper at coolcool.212000@gmail.com

0 Answers   NIC,

Explain how to convert a binary number into bcd number directly and vice-versa, without converting it into any other number system?

0 Answers  

What is the difference between microprocessors and micro controllers?

4 Answers   CTS,