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CYBR 235 > Content Quiz 2 > Flashcards

Content Quiz 2 Flashcards

1
Q

What type of cable is used to connect a host to a network device?

A

Straight-through

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2
Q

What type of fiber-optic cable uses a laser to transmit a light signal via a small core, single path?

A

Single-mode

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3
Q

What type of fiber-optic cables use LEDs to transmit data?

A

Multimode

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4
Q

Why are wires in UTP twisted?

A

To protect from interference and crosstalk

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5
Q

What are the physical components in the Physical Layer?

A

Interfaces
Cables
NICs
Connectors

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6
Q

How many pairs of wires are in a UTP cable?

A

4

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7
Q

What is Signaling?

A

How bit values are represented on the medium

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8
Q

What is the most popular type of medium used in networks?

A

Copper

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9
Q

What is the PDU for the Physical Layer?

A

Bits

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10
Q

What are the limitations of wireless media

A

Coverage Area
Interference
Security
Bottlenecks

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11
Q

What are the main limitations for copper cabling

A
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12
Q

What is the term for the amount of time, including delays, for data to travel form one given point to another?

A

Latency

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13
Q

What type of connector is used to terminate UTP?

A

RJ45

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14
Q

What is UTP?

A

Unshielded Twisted pair

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15
Q

What is Encoding?

A

Converts the stream of bits into a format recognizable by the next device in the network path

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16
Q

What does bps mean?

A

Bits per second

17
Q

Physical Layer Standards address which three functional areas

A

Encoding
Physical Components
Signaling

18
Q

What is Full-duplex communication?

A

Both devices can send and receive at the same time.

19
Q

What type of addresses are included in the Layer 2 header?

A

MAC

20
Q

What are the parts of a Data Link frame

A

Header
Data
Trailer

21
Q

True or False.
Wifi is Full-duplex.

A

False

22
Q

What type of topology show physical connections and how devices are interconnected?

A

Physical Topology

23
Q

What type of topology identifies the virtual connections between devices using device interfaces and IP addressing schemes?

A

Logical Topology

24
Q

What are the four L2 functions that occur at each hop along the path

A

Accept a frame
De-encapsulate the frame
Re-encapsulate the frame with new MACs
Forward the frame

25
Q

What is the PDU for the Data Link layer?

A

Frame

26
Q

What are the two sub-layers of the Data Link layer?

A

LLC and MAC

27
Q

What is 10101100 in Decimal?

A

172

28
Q

What is the highest value in Hex?

A

F

29
Q

What is 0x0F in Binary?

A

00001111

30
Q

What is 0x0A in decimal?

A

10

CYBR 235 (5 decks)

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