Networking Tutorials

Transmission Media - 1 Objectives : Cable characteristics Various types of Cables  Fiber optic cable  Connectors of fiber optic cable  Cabling Standard - EIA/TIA 568A and 568B  Straight cabling & Cross Cabling   Introduction :-       Networking involves connection of computers, workstations and peripheral devices. Networking hardware involves all the peripheral devices,interface cards and other equipment such as cables and wires that are used to establish a network connection. Wire is a single, cylindrical strand of metal conductor with low resistance to the current flow. Cable can be defined as a bunch of wires bound together which may be or insulted. You can connect these devices either using physical transmission medium or using wireless transmission medium. Physical transmission media involves the use of wires and cables. (1) Characteristics of Cables  :       Before selecting a ca...

Multiple Choice Questions  (MCQs) on Ethernet Questions : (Q1). The _ _ _ _ _ Ethernet standards employs two pairs of wires in a CAT5 cable. 100Base-FX 100Base-SX 100Base-TX 100Base-T4 (Q2). The maximum length of cable defined for 100Base-T is _ _ _ _ _ meter. 200 185 100 2000 (Q3). _ _ _ _ _ uses less expensive short wavelength light source and other optical components. 100Base-SX 100Base-FX 100Base-BX none of the above (Q4). The _ _ _ _ _ standard defines a single UTP solution called 1000Base-T. 802.3z 802.3ae 802.3ab none of the above (Q5). 1000Base-TX is simpler to implement and requires _ _ _ _ _ cable. CAT3 CAT6 CAT5 CAT7 (Q6). 10-Gigabit Ethernet supports a segment length upto _ _ _ _ _ kilometers. 2 10 40 100 Answers :- I will not tell/show the answer's of the above Questions now. Rather I asks you all to find the answers. I will reveal answers when there will be more than 10 Comments to sho...

Switch Imlementation       In organization multiple switches are installrd to provisde network connectivity to many users as each switch supports maximum up to 48 users. Two common implementation strategies are : #(1) Implementation 1  :-       You can install the switches by connecting the switches one after another using it,s uplink port in cascade manner as shown in figure below :- Switch implementation 1        So in this case access speed and backbone speed is same i.e. 100Mbps. Access speed is the speed that any host will get if it is connected to one of the switch's access port. And backbone speed is the interconnection speed between the switches. #(2) Implementation 2  :-       Or you can connect all the switches to a central switch that is called backbone switch using their uplink ports as shown in the figure below :- Switch implementation 2         H...

Ethernet - (3) Summary on What we have studied in last Tutorial  ? :- 1000Base-X is the first version published by the 802.3z standard. It is divided into a number of standards such as 1000Base-CX, 1000Base-SX and, 1000Base-LX . Gigabit Ethernet Provides speed of 1000Mbps.  It transmits data over UTP category 5e, or 6 cabling.Gigabit Ethernet is divided into following standards. (1.2.1)  Advantages of Gigabit Ethernet  :- Compatibility -  Gigabit Ethernet uses same transmission schemes and Frames format as they are used in 100Base-T and 100Base-T ( Fast Ethernet ) Ethernet. As a result, there is no need of complex, slow emulations and translations for Gigabit Ethernet. Hardware Cost -  The Hardware cost of Gigabit Ethernet is equivalent to the Cost of Tradtional Ethernet and Fast Ethernet hardware. Familiar Technology -  Gigabit Ethernet is supports the same technology and uses the same protocols as used...

Ethernet - (2) Summary on What we have studied in last Tutorial  ? :- Network involves connection of computers, Workstation and network devices such as routers, switches, and firewalls . Ethernet is most widely used Local Area Network ( LAN ) technology and is formally defines by IEEE 802.3 standard.  High speed Ethernet was developed in order to increase the connectivity speed between the terminals or computers in a particular network. Fast Ethernet is further sub-divided into two categories :- (1). Copper Cabled Ethernet & (2). Fiber Optic Cabled Ethernet. # Fiber optic Ethernet :-        Fibre cabled to Ethernet employes fibre optic cables for transmission of signals in which the electrical signals are converted to optical signals ( light signals ) for transmission through the cable which is made up of thin glass. These transmitted signals are again converted from light to electrical signals at the receiver e...

Ethernet - (1) Introduction   :-             Network involves connection of computers, Workstation and network devices such as routers, switches, and firewalls. These devices are interconnected with each other with the help of a medium. Ethernet is most widely used Local Area Network ( LAN ) technology and is formally defines by IEEE 802.3 standard. Ethernet makes use of different cables for communication between different computers.               The high speed Ethernet is developed to increase the connectivity speed. All these standard use different transmission rates. (1)  High Speed Ethernet  :-              High speed Ethernet was developed in order to increase the connectivity speed between the terminals or computers in a particular network. The various high speed Ethernet standards are: ...

Multiple choice Questions  (MCQs ) on IP address   Questions  :- (Q1). Class_________Provides 65,534 host address. Class A Class B Class C Class D (Q2). Class D addresses are reserved for _____________.  Loop back Private addressing Multicast Broadcast (Q3). An IP address 255.255.0.0 is a default address mask of class__________. Class B Class A Class C Class E (Q4). IPv6 implements _____________ IP address whereas IPv4 implements 32-bit. 32-bit 64-bit 128-bit 256-bit (Q5). ___________ addresses are used to automatically assign an IP address to device in an IP network when IP address configuration protocols are unavailable. Private Link-Local IPv6 Loop-Back (Q6). IP address contain two addresses embedded within one IP address; __________ and Host address. Network address Host address Subnet mask None of the above. Answers  :- Class B Multicast Class B 128-bit Link-local Network addres...