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Thursday, February 21, 2013

Computer Networking Question with Answer



1) What is a Link?
A link refers to the connectivity between two devices. It includes the type of cables and protocols used in order for one device to be able to communicate with the other.
2) What is a node?

A node refers to a point or joint where a connection takes place. It can be computer or device that is part of a network. Two or more nodes are needed in order to form a network connection.
3) What is backbone network?
A backbone network is a centralized infrastructure that is designed to distribute different routes and data to various networks. It also handles management of bandwidth and various channels.
4) What are the layers of the OSI reference model?
There are 7 OSI layers: Physical Layer, Data Link Layer, Network Layer, Transport Layer, Session Layer, Presentation Layer and Application Layer.
5) What are routers?
Routers can connect two or more network segments. These are intelligent network devices that store information in its routing table such as paths, hops and bottlenecks. With this info, they are able to determine the best path for data transfer. Routers operate at the OSI Network Layer.
6) What is point to point link?
It refers to a direct connection between two computers on a network. A point to point connection does not need any other network devices other than connecting a cable to the NIC cards of both computers.
7) What is a LAN?  
LAN is short for Local Area Network. It refers to the connection between computers and other network devices that are located within a small physical location.
8)What is anonymous FTP?
Anonymous FTP is a way of granting user access to files in public servers. Users that are allowed access to data in these servers do not need to identify themselves, but instead log in as an anonymous guest.
9) What is subnet mask?
A subnet mask is combined with an IP address in order to identify two parts: the extended network address and the host address. Like an IP address, a subnet mask is made up of 32 bits.
10) What is the maximum length allowed for a UTP cable?
A single segment of UTP cable has an allowable length of 90 to 100 meters. This limitation can be overcome by using repeaters and switches.


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Monday, February 18, 2013

IT Quiz


Test Your IT Skills
Q:-1 How Many layers are present in OSI Model ?
a) 4
b) 5
c) 6
d) 7
Q:-2 Java is Platform independent ?
a) True
b) False  

Q:-3 What is the use of sleep command in UNIX ?
a) It suspends program execution for a specified period of time
b) It will abort the sheel script and will exit
c) None of them

Q:-4 Javac is primarly
a) Java Complier
b) C complier
c) c++ complier
d) .Net complier

Q:-5 What does JVM stands for ?
a) Juniper Virtual Machine
b) Java Virtual Machine
c) None of the them
 
Q:-6 Unix Kernel is Written in C language ?
a) True
b) False

Q:-7 MongoDB is a ___
a) Mailserver
b) Webserver
c). Database
 
Q:-8 What is the default port for the Secure Web server ?
a) 80
b) 8080
c) 443
d) None of Them
Q:-9 OpenStack  is  a __________
a) Cloud computing software / OS
b) Mac Operating system
c) Windows Operating System
d) None of them 

 ***Answers 1-d , 2-a , 3-a , 4-a , 5-b , 6-a , 7-c, 8-c , 9-a.***

** Please feel free to add any other comments or ideas you may have. You're invited to share your thoughts.**






IT Quiz

Q1: In Linux , Grub stands for ?
(a) Grand Unified Boot loader ( Correct ) 
(b) Great Unified Boot Loader
(c) Great Unified Boot
(d) None of Them

Q2: Buffer and Cache are the part of ____
 (a) Virtual Memory
 (b) Hard Disk
 (c) Physical Memory
(d) none of them

Q3: what is the default Port of Tomcat ?
(a) 80
(b) 8080 (Correct)
 (c) 8081
 (d) 81

Q4: What is JBoss ?
(a) Application Server (Correct) 
(b) Web Server
(c) Both a & b
(d) None of Them

 Q5: What is the default Port of MySQL?
(a) 3031
(b) 3033
(c) 3035
(d) 3306 (Correct ) 

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