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E Mich Basic Questions Flashcards

1
Q

What does HTML stand for?

A

Hypertext Markup Language

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2
Q

What does MAC stand for?

A

Media access control

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3
Q

What is a MAC address? explain the two parts of it.

A
  1. Its an ID code that’s assigned to a network adapter or any device with built-in networking capability, such as a printer
  2. The OUI represents the manufacturer
  3. The NIC represents the specific portion (like a serial number) made by the manufacturer.
    Basically = serial number

Basicly= Identifies the device on a network

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4
Q

What does USB stand for?

A

Universal Serial Bus

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5
Q

Name two modes of data transmission.

A

Simplex

Half duplex

Full duplex

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6
Q

Explain the term Simplex Data Transmission

A

A communication channel that sends information one direction only

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7
Q

Explain the term Half Duplex Data Transmission

A

Transmission of data in just one direction at a time

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8
Q

Explain the term Full Duplex Data Transmission

A

Transmission of data in two directions simultaneously

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9
Q

Highlight a problem with parallel data transmission

A

When needing to be used for longer distances some of the data can get lost

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10
Q

What is ARQ?

A

Automatic Repeat reQuest. Error method for data transmission

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11
Q

Explain how echo checks work

A

The data received is stored + transmitted back to its point of origin, where it is compared with its original data

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12
Q

What does the term ISP stand for?

A

Internet Service Provider

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13
Q

One reason why we use binary to represent data in computers?

A

Because transistors have 2 states. Therefore 1 and 0 would work best

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14
Q

What is an algorithm?

A

A set of instructions used to solve a problem. You can use a flow chart or pseudo code for it

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15
Q

Limitations of ASCII

A
  1. ASCII is 7 bit binary therefore the highest number of characters it can represent is 128
  2. Many languages throughout the world have more than 128 characters
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16
Q

Why are logical errors often the most difficult to find?

A

The computer will not often spot them, just run them. It does not appear to do what you asked it to do

17
Q

What is a Boolean?

A

associated with conditional statements, which allow different actions and change control flow

18
Q

AND gate

A

000
010
100
111

19
Q

Or gate

A

000
011
101
111

20
Q

NOT gate

21
Q

NAND gate

A

001
011
101
110

22
Q

NOR gate

A

001
010
100
110

Computer Science (2 decks)

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