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The IEEE standard was first published in 1985

Palo Alto Research Center

3 types of wiring techniques to construct the ethernet cable

RJ45 is the most popular Ethernet cable.

(c) Twisted pair

Wireless Ethernet cards uses radio waves to transmit data.

1. crimping

2. crimping

Registered Jacks:

A Registered Jack commonly known as RJ is a network interface used for network cabling, wiring and jack construction. The primary function of the registered jack is to connect different data equipment and telecommunication devices. The commonly known registered jacks are RJ-11, RJ-45, RJ21, andRJ-28.

(a) (i)-1 (ii)-2 (iii)-3

Answer is (d) a and c

Answer is (a) (i), (ii)

2 wiring schemes are available in RJ45

Answer is (a) I, IV

RJ-21 is typically used for data communication trucking applications.

Universal Serial Bus

(a) Tim Berners Lee

(c) Advanced Research Project Agency Network

Single-mode, Multi-mode

USB is used for connecting keyboard, mouse and other peripheral devices.

Answer is (c) RJ-27

Answer is (a) (i), (ii)

The latest version of USB is USB 3.0

Micro USB is a miniaturized version of the USB used for connecting mobile devices.

(d) 4.85Gbps

Dongles is the special network device used to connect the Internet through the USB

Uses of USB Cables: 

1. The Universal Serial Bus are used to connect keyboard, mouse and other peripheral devices.

2. But there are some special network devices used to connect the Internet through the USB called dongles.

3. The dongle is a small peripheral device which has a compatible of mobile broadband with a sim slot in it and connects the Internet and acts as a modem to the computer

Pin details of the RJ-11, there are 6 pin where the two pins give the transmission configuration, the two pins give the receiver configuration and the other two pins will be kept for reserved. The two pin will have the positive terminal and the negative terminal.

(b) RJ-14 – 18 pins

1. male

2. Register Jack, number of interfaces

3. RJ45

RJ45 connector is also called as 8P8C

The RJ-21 connector has 50 pins with 25 pins at one end and 25 pins at the other end. It is also called as champ connector or Amphenol connector. The Amphenol is a connector manufacturer. The RJ-21 interface is typically used for data communication trucking applications.

Some of the cable names are Media Bridge 50-feet Coaxial cable, Amazon basics CL2-Rated Coaxial cables.

IT is of strands of glass and pulse of light is used to send the information. They are mainly used in Wide Area Network (WAN).

UTP:

The UTP is used nowadays as modem cables for Internet and they are lower in cost and installation and maintenance is easy compared to the coaxial cables.

STP:

STP is similar to UTP, but it is covered by an additional jackets to protect the wires from External interference.

(b) Twisted pair cables – ATP, UTP

(c) Unshielded Twisted Pair

(a) (i)- 1(ii)-2 (iii)-3 (iv)-4

null modem cable

The co-axial cable got its name by the word coax

Computers can be connected on the network with the help of wired media (Unshielded Twisted pair, shielded Twisted pair, Co-axial cables and Optical fibre) or wireless media (Infra Red, Bluetooth, WiFi)

Co-axial cables transfer the information in 10 mbps

Co-axial cables are made up of Copper

Answer is (c) I, IV

(d) co-axial

Twisted Pair Cables:

It is type of cable with two or more insulated wires twisted together. It started with the speed of 10 mbps (1 OBASE-T cable is used).

(b) Wired Network

(c) (i)-4, (ii)3, (iii)-1, (iv)-2

1880 was the co-axial cables invented

(c) both a and b

The main components are used in the Ethernet cabling are

1. Patch Cable (Twisted pair)

2. RJ45 Connector

3. Ethernet Ports

4. Crimping Tool

1. Patch Cable (Twisted Pair): 

1. These Cables are generally made up of 8 wires in different colors.

2. Four of them are solid colours, and the others are striped.

3. The eight colors are white green, green, white orange, blue, white blue, orange, white brown and brown. The following figure 13.8 shows the patch cable.

Ethernet cables are normally manufactured in several industrial standards such as Cat 3, Cat 5, Cat 6, Cat 6e and cat 7. “Cat” simply stands for “Category, ”. Increasing the size of the cable also lead to slower transmission speed.

4. The cables together with male connectors (RJ45) on each end are commonly referred as Ethernet cables. It is also called as RJ45 cables, since Ethernet cable uses RJ45 connectors.

2. RJ45 Connector:

• The RJ45 connector is a small plastic cup which will be used to connect the wire inside the connector and ready to connect the Internet.
• The RJ45 connector looks similar like a telephone jack but it looks a slightly wider. 
• The Ethernet cables are sometime called as RJ45 cables.
• In RJ45 the “RJ” stands for the Registered Jack and the “45” simply refers to the number of interface standard in the cable.
• Each RJ45 connector has eight pins and connected to each end of the Ethernet cable.
• Since it has 8-position, 8-contact (8P8C) modular plug, It is also known as 8P8C connector. Th£se plugs (connector) are then inserted into Ethernet port of the network card.

3. Ethernet card and Port:

• Ethernet card is a Network Interface Card (NIC) that allows computers to connect and transmit data to the devices on the network. It may be an expansion card or built-in type. 
• Expansion card is a separate circuit board also called as PCI Ethernet card which is inserted into PCI slot on motherboard of a computer.
• Now a days most of the computers come with built-in Ethernet cards which resides on motherboard.
• Wireless Ethernet cards are also available, which uses radio waves to transmit data. 
• Ethernet port is an opening which is a part of an Ethernet card. It accepts RJ45 connector with Ethernet cable. It is also called as RJ45 jack. It is found on personal computers, laptops, routers, switches, hubs and modems.
• In these days, most of the computers and laptops have a built-in Ethernet port for connecting the device to a wired network.

4. Crimping Tool:

• Crimping is the process of joining two or more pieces of metal or wire by deforming one or both of them to hold each other.
• The crimping tool is a physical tool which is used to connect the patch wire and the Ethernet connector.
• The tool will puncture the connector and makes the wire set in the connector.