This is set-2 for Networking Questions and answers for your technical interview and become sound in networking. Networking has much importance today life.
follow url Q. What is a full-class C in CIDR notation?
For class A ..default subnet mask is 255.0.0.0 so CIDR notation is /8
For class B ..default subnet mask is 255.255.0.0 so CIDR notation is /16
For class C ..default subnet mask is 255.255.255.0 so CIDR notation is /24
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a) Repeater – Also called a regenerator, it is an electronic device that operates only at physical layer. It receives the signal in the network before it becomes weak, regenerates the original bit pattern and puts the refreshed copy back in to the link.
b) Bridges – These operate both in the physical and data link layers of LANs of same type. They divide a larger network in to smaller segments. They contain logic that allow them to keep the traffic for each segment separate and thus are repeaters that relay a frame only the side of the segment containing the intended recipent and control congestion.
c) Routers – They relay packets among multiple interconnected networks (i.e. LANs of different type). They operate in the physical, data link and network layers. They contain software that enable them to determine which of the several possible paths is the best for a particular transmission.
Gateways – They relay packets among networks that have different protocols (e.g. between a LAN and a WAN). They accept a packet formatted for one protocol and convert it to a packet formatted for another protocol before forwarding it. They operate in all seven layers of the OSI model.
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Hub works on layer 1 of OSI model
Swich works on layer 2 of OSI model
Router works on layer 3 of OSI model
Hub does not seperate collision and broadcost domain
swich seperate collision domain but does not seperate broadcost domain.
router does seperate collision and broadcost domain
What is the difference between layer 2 and layer 3 of OSI model?
In the hirarchical design of the osi model , layer 3 is used fot the determinning the path of packet delivery and method of the packet to deliver. for that the routing and the routed protocol works .On the layer two , packets are segmented to data enclosed with the mac address to which the data needs to deliver . on layer 2 , ARP works to resolve the IP address to mac address .
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Every line has an upper limit and a lower limit on the frequency of signals it can carry. This limited range is called the bandwidth.
risperdal m tab cost 10mg - Summary of Product Characteristics (SmPC) by Eisai Ltd Q. What are the types of Transmission media ?
Signals are usually transmitted over some transmission media that are broadly classified in to two categories.
a) Guided Media – These are those that provide a conduit from one device to another that include twisted-pair, coaxial cable and fiber-optic cable. A signal traveling along any of these media is directed and is contained by the physical limits of the medium. Twisted-pair and coaxial cable use metallic that accept and transport signals in the form of electrical current. Optical fiber is a glass or plastic cable that accepts and transports signals in the form of light.
b) Unguided Media – This is the wireless media that transport electromagnetic waves without using a physical conductor. Signals are broadcast either through air. This is done through radio communication, satellite communication and cellular telephony.
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The data unit in the LLC level is called the protocol data unit (PDU). The PDU contains of four fields a destination service access point (DSAP), a source service access point (SSAP), a control field and an information field. DSAP, SSAP are addresses used by the LLC to identify the protocol stacks on the receiving and sending machines that are generating and using the data. The control field specifies whether the PDU frame is a information frame (I – frame) or a supervisory frame (S – frame) or a unnumbered frame (U – frame). paroxetine street price BREAKING NEWS: Do Not Buy Pamelor Until You Read This Review! Does Pamelor Work? Learn More About its Ingredients And Side Effects from Our Expert.
Q. How do you network two PCs together directly using a cat 5 cable?
Ans. – Connect 2 Computers Directly Using Crossover Cable
You will need a crossover cable to do this. Pairs are switched allowing
communication to occur without a hub or router
TAKE THE CAT5E CABLE AND TWO JACKS.YOU WILL FIND 4 PAIRS OF
WIRES. LIKE OW-O,BLUEW-BLUE,GREENW-GREEN,BROWNW-BROWN. IN
THIS THERE ONLY FOUR WIRES ARE NEEDED. supoose you have crimped
one side like this ow-o-gw-g-blw-bl-brw-br.then other end will be gw-blow-
bl-o-brw-br. ow-orange white o-orange blw-blue white bl-blue grwgreen
white gr-green brw-brown white br-brown COLUR CODE : 1—-3 2–
–6 3—-1 4—-4 5—-5 6—-2 7—-7 8—-8 Both computers need to have
a NIC(Network Interface Card) installed.
The computers need to have different IP addresses in the same IP subnet.
This gets set in Network Properties – TCP/IP Properties. Easiest would be
to set one at 10.0.0.1 and the other at 10.0.0.2, both with a netmask of
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ICMP is Internet Control Message Protocol, a network layer protocol of the TCP/IP suite used by hosts and gateways to send notification of datagram problems back to the sender. It uses the echo test / reply to test whether a destination is reachable and responding. It also handles both control and error messages.
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Ans. – Using online video conferencing tools, such as net meeting with
microphone/speakers and net cam
More input from FAQ Farmers:
Using socket programming in java and using NIC card
We can use LAN utility for voice conference. It gives superior speed and
quality with no extra infrastructure. If we use phone for same, it wont
have speed and quality of data.
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The data unit created at the application layer is called a message, at the transport layer the data unit created is called either a segment or an user datagram, at the network layer the data unit created is called the datagram, at the data link layer the datagram is encapsulated in to a frame and finally transmitted as signals along the transmission media.
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The address resolution protocol (ARP) is used to associate the 32 bit IP address with the 48 bit physical address, used by a host or a router to find the physical address of another host on its network by sending a ARP query packet that includes the IP address of the receiver.
The reverse address resolution protocol (RARP) allows a host to discover its Internet address when it knows only its physical address.
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Ans. – This is possible in Linux based systems. IP’s can be splitted in two
IP’s!! And it can be achieved from single NIC card!!
Sure you can… if you are using Windows you can configure the TCP/IP
Protocol in your Network Properties and then you can add additional IP
”’Windows XP”’ * Control Panel -> Network Connections -> Local Area
Connection -> Properties -> Internet Protocol (TCP/IP) * Type in a static
ip address * Then click Advanced * Under the “IP address” group box,
click add to add more ip addresses.
You would need to do this in the case where you need to connect to more
then one different subnet where proper routing has not been set up.
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Ans. – Networks can run slowly for a variety of reasons. I assume that
your network is running slowly because you have a lot of traffic. The best
way to speed up an overloaded network is to segment it. In other words,
divide it into two networks. Then each network will support only half the
You need two hubs/switches to be able to do this. Each hub/switch will
support one of the networks. If you have multiple servers, one of your
servers should probably be “multi-homed”. That means it should have two
network cards and be attached to both networks. Then it can serve as a
“router”. A “router” will pass packets from one network to the other if they
Get a free case evaluation here to find out if you can collect compensation for enter side effects. Did you know the FDA is urging doctors to stop Q. What is the minimum and maximum length of the header in the TCP segment and IP datagram ?
The header should have a minimum length of 20 bytes and can have a maximum length of 60 bytes.
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Class A 0.0.0.0 – 127.255.255.255
Class B 188.8.131.52 – 184.108.40.206
Class C 192.0.0.0 – 220.127.116.11
Class D 18.104.22.168 – 22.214.171.124
Class E 240.0.0.0 – 247.255.255.255
Pictures of Microzide (moduretic 5 mg indicazioni Capsule), drug imprint information, side effects for the patient. Q. What is the difference between TFTP and FTP application layer protocols ?
The Trivial File Transfer Protocol (TFTP) allows a local host to obtain files from a remote host but does not provide reliability or security. It uses the fundamental packet delivery services offered by UDP.
The File Transfer Protocol (FTP) is the standard mechanism provided by TCP / IP for copying a file from one host to another. It uses the services offer by TCP and so is reliable and secure. It establishes two connections (virtual circuits) between the hosts, one for data transfer and another for control information.
Buy himalaya methylprednisolone tablets usp 4 mg price forte tablet 60 tablets pack online at discounted price. visit 1mg.com to know price, benefits and product information of himalaya Q. What are major types of networks and explain ?
a) Server-based network
b) Peer-to-peer network
Peer-to-peer network, computers can act as both servers sharing resources and as clients using the resources.
Server-based networks provide centralized control of network resources and rely on server computers to provide security and network administration
Pictures of see url (Pentoxifylline), drug imprint information, side effects for the patient. Q. What are the important topologies for networks ?
a) BUS topology – In this each computer is directly connected to primary network cable in a single line.
Advantages: Inexpensive, easy to install, simple to understand, easy to extend.
b) STAR topology – In this all computers are connected using a central hub.
Advantages: Can be inexpensive, easy to install and reconfigure and easy to trouble shoot physical problems.
c) RING topology – In this all computers are connected in loop.
Advantages: All computers have equal access to network media, installation can be simple, and signal does not degrade as much as in other topologies because each computer regenerates it.
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A network in which there are multiple network links between computers to provide multiple paths for data to travel.
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In a baseband transmission, the entire bandwidth of the cable is consumed by a single signal. In broadband transmission, signals are sent on multiple frequencies, allowing multiple signals to be sent simultaneously.
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In a Ethernet network, between any two points on the network ,there can be no more than five network segments or four repeaters, and of those five segments only three of segments can be populated.
Q. What MAU ?
In token Ring , hub is called Multistation Access Unit(MAU).
Q. What is the difference between routable and non- routable protocols?
Routable protocols can work with a router and can be used to build large networks. Non-Routable protocols are designed to work on small, local networks and cannot be used with a router
Q. Why should you care about the OSI Reference Model ?
It provides a framework for discussing network operations and design.
Q. What is logical link control ?
One of two sublayers of the data link layer of OSI reference model, as defined by the IEEE 802 standard. This sublayer is responsible for maintaining the link between computers when they are sending data across the physical network connection.