Answer / milind

Full form of RAID (Redundant Array of Independent Disks)
It is the way of storing the same data in different places
(thus, redundantly) on multiple hard disks.
RAID levels
RAID 0 (block-level striping without parity or mirroring)
RAID 1 (mirroring without parity or striping)
RAID 2 (bit-level striping with dedicated Hamming-code
parity)
RAID 3 (byte-level striping with dedicated parity)
RAID 4 (block-level striping with dedicated parity)
RAID 5 (block-level striping with distributed parity)
RAID 6 (block-level striping with double distributed parity)
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DNS, full form (Domain Name System)
It translates domain names meaningful to humans into the
numerical identifiers <IP> associated with networking
equipment for the purpose of locating and addressing these
devices worldwide.
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DHCP, full form (Dynamic Host Configuration Protocol)
It is automatic configuration protocol used on IP networks.
DHCP allows a computer to be configured automatically for
IP address.
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IP Classes
Every machine on the Internet­ has a unique identifying
number, called an IP Address.
Class 1st Octet Decimal Range
A 1 – 126*
B 128 – 191
C 192 – 223
D 224 – 239
E 240 – 254
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Protocols
A protocol is a special set of rules that enable
communication between two computers.
You may find protocol details on net.

Answer / vinod

dns means domain naming systems and dhcp means dynamic host
configuration protocol

Answer / imnoor

PROTOCOL :

"Protocol" usually refers to a set of rules that define an exact format for communication between systems. For example the HTTP protocol defines the format for communication between web browsers and web servers, the IMAP protocol defines the format for communication between IMAP email servers and clients, and the SSL protocol defines a format for encrypted communications over the Internet.

2 examples of DCE devices ? a. modems b. routers c. computers d. interface cards

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You want sendmail to attempt to re-deliver previously undelivered mail (e.g. the receving mail server was down) every 30 minutes. Which option and value would you use with the sendmail deamon ?

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Your workstation can ping itself by ip, but it can't ping ip of the others on the same subnet. why? (The physical connection is OK).

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Solaris machines more often than not runs routed daemon. routed is the unix equivalent of RIP. It is always run with -q option. Why ? a. q options optimizes the process b. q option uses a default route c. q option only activates itself in the absence of a default router d. q option tells the process not to advertise any routes. It just listens to the RIP udates. That way it does not interfere with router in the subnet.

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What is the the advantage of address sharing?

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Explain VLAN concepts

0 Answers   HCL,

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How many layers are under tcp/ip?

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You have a class B subnet. You would like divide it up into 5 more subnets by "subnetting". However you also have to have at least 6000 hosts per subnet. Can you do it ? a. Yes b. No.

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can i get oracle10g with Linux installation procedure

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In a peer-to-peer network, each computer can act as both a server and a _____ .

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To configure "Local mail in Local Mode", how many sendmail.cf files are requried ?

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True or False: In the OSI model the Physical layer communicates directly with the what layer in another computer.

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