Which of these supports speeds of up to 100 Mbps?

Which of these supports speeds of up to 100 Mbps?

• Cat 5
• Cat 2
• Cat 4
• Cat 3 

 

 

EXPLANATION

 

CAT3

The Category 3 or CAT3 standard was used heavily in the early 90’s for wiring offices and homes. It’s still used in two-line phone configurations, but has largely fallen out of favor for wired networking thanks to the Category 5e cable’s superior performance. CAT3 can be relied on to handle data speeds of up to 10 Mbps, but no more. Its maximum frequency clocks in at 16 MHz. Like many other cabling options, it relies on copper for data and power transmission. While theoretically limited to 10BASE-T Ethernet, it can actually support 100BASE-T4 speeds by using 4 wires instead of 2 to achieve 100 Mbps throughput.

CAT5

Around 2000 or so, CAT5 overtook CAT3 as the Ethernet cable of choice for LAN networking. CAT5 uses either the 10BASE-T or 100BASE-T standard for data transmission. Using two cable pairs to signal over copper wire, CAT5 is now largely archaic and isn’t widely used for Ethernet connections. It’s rated for a maximum frequency of 100 MHz and top speeds of 100 Mbps. CAT5 uses 8P8C modular connectors to connect devices together, and can be used effectively at lengths of up to 100 meters. Today, CAT5 cable has been replaced for the most part by CAT5e. 

CAT5e

While very similar to CAT5 in appearance, CAT5e introduces some new wrinkles in the equation. For one thing, CAT5e uses four pairs of copper wire rather than the two that CAT5 relies on. In addition, the wire pairs are twisted more tightly and are sheathed in heavy-duty shielding to eliminate crosstalk. Crosstalk cuts down on the speed at which a cable can transmit information. Thanks to its internal upgrades, CAT5e is capable of achieving 1000BASE-T speeds. In other words, it can handle up to 1 Gbps of throughput at a distance of up to 100 meters. As of today, it’s the most common type of cabling found in modern homes and offices for Ethernet purposes. 

 

 

Read More

Which type of fiber-optic cable transmits multiple streams of LED-generated light?

Which type of fiber-optic cable transmits multiple streams of LED-generated light?

• Multi-phase
• Multi-channel
• Multi-color
• Multi-mode 

EXPLANATION

 

 

 Multi-mode optical fiber is a type of optical fiber mostly used for communication over short distances, such as within a building or on a campus. Typical multi-mode links have data rates of 10 Mbit/s to 10 Gbit/s over link lengths of up to 600 meters (2000 feet).

Fiber optic cabling and hardware products including single mode and multimode fiber patch cables of 62.5/125, 50/125, and 9/125, and fiber distribution products used in high tech networking.

Read More

In an optical fiber, the inner core is _______ the cladding.

In an optical fiber, the inner core is _______ the cladding.

• the same density as
• also known as
• less dense than
• denser than 

EXPLANATION

 

An optical fiber has two layers, the inner layer and the outer layer. The inner layer is called core. The data pass through a core. This core is made of dense of glass or plastic. The outer layer of a fiber is called cladding. It is also made of glass or plastic. Its glass or plastic is less dense.
Cladding is used in optical fiber for prevent any refraction while passing data. The function of cladding is to occur full internal reflection in optical fiber. That is why a cladding’s density is lower then core.

The inner core of an optical fiber is Glass or plastic

Read More

What is IRQ?

What is IRQ?

• Internal Response Query
• Internal Request Queue
• Interrupt Request
• Increased Raise Quantity 

EXPLANATION

 

In a computer, an interrupt request is a hardware signal sent to the processor that temporarily stops a running program and allows a special program, an interrupt handler, to run instead. Hardware interrupts are used to handle events such as receiving data from a modem or network card, key presses, or mouse movements.

 

Such an input may be either "level sensitive" - the interrupt condition will persist as long as the input is active or "edge triggered" - an interrupt is signalled by a low-to-high or high-to-low transition on the input. Some processors have several interrupt request inputs allowing different priority interrupts. 

Read More

What is FIFO?

What is FIFO?

• Foot Induced Foul Odor
• Flow In, Flow Out
• Fade In, Fade Out
• First In, First Out 

EXPLANATION

 

 FIFO is an acronym for first in, first out, a method for organizing and manipulating a data buffer, where the oldest entry, or 'head' of the queue, is processed first. It is analogous to processing a queue with first-come, first-served behaviour: where the people leave the queue in the order in which they arrive.

Read More

What's an FDD?

What's an FDD?

• Feature Driven Development
• Floppy Disk Drive
• Fault-Detection Drive
• Fierce Donut Dependence

EXPLANATION

 

A floppy disk drive, also called FDD or FD for short, is a computer disk drive that enables a user to save data to removable diskettes. Although 8" disk drives were first made available in 1971, the first real disk drives used were the 5 1/4" floppy disk drives, which were later replaced with the 3 1/2" floppy disk drives.

By 2006 computers were rarely manufactured with installed floppy disk drives; 3 1 ⁄ 2-inch floppy disks can be used with an external USB floppy disk drive, but USB drives for 5 1 ⁄ 4-inch, 8-inch, and non-standard diskettes are rare to non-existent. These formats are usually handled by older equipment.

Read More

What's EPS?

What's EPS?

• Essential Programs and Services
• Express Print Station
• Elephants Perform the Shake
• Encapsulated PostScript 

 

EXPLANATION

 

Encapsulated PostScript is a DSC-conforming PostScript document with additional restrictions which is intended to be usable as a graphics file format. In other words, EPS files are more-or-less self-contained, reasonably predictable PostScript documents that describe an image or drawing and can be placed within another PostScript document.Wikipedia

Filename extension:eps.epsf.epsi

Internet media type:application/postscript, application/eps, application/x-eps, image/eps, image/x-eps

Type code:EPSF, TEXT

Read More