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Module I: Wireless > Mod 7: Bluetooth - PE > Flashcards

Mod 7: Bluetooth - PE Flashcards

1
Q

Bluetooth is a short range wireless technology between a mobile and fixed device over what frequency range?

  • HF
  • VHF
  • UHF
  • None of the above
A

UHF

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2
Q

[TRUE / FALSE]

Bluetooth uses Frequency Hopping Spread Spectrum (FHSS).

A

True

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3
Q

[True / False]

Bluetooth is a packet-based protocol that forms a network known as piconet; devices using a piconet do not have to be on the same channel at the same time.

A

False

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4
Q

Which actress was the inventor of Frequency Hopping Spread Spectrum (FHSS)?

  • Margot Robbie
  • Hedy Lamarr
  • Halle Barrie
  • Jennifer Aniston
A

Hedy Lamarr

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5
Q

How many bluetooth channels are available?

  • 72
  • 64
  • 56
  • 79
A

79

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6
Q

During device discovery, devices generate an inquiry hopping sequence derived from where?

  • The devices serial number
  • A random generated number
  • The local devices clock and chosen inquiry access code
  • None of the Above
A

The local devices clock and chosen inquiry access code.

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7
Q

[TRUE / FALSE]

Bluetooth protocol is broken down into four category stacks.

A

FALSE

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8
Q

[True / False]

Bluetooth host is the device such as the mobile, while the Bluetooth controller is the built-in chip into the mobile device.

A

True

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9
Q

The Bluetooth controller is responsible for which lower-layer functions?

  • Frequency Hopping
  • Base Band Encapsulation
  • Returning Results to Host Device
  • All of the Above
A

All of the Above

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10
Q

[TRUE / FALSE]

The Bluetooth host is responsible for higher-layer protocols.

A

True

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11
Q

What is the connection-oriented streaming transport protocol over Bluetooth?

  • LRCOMM
  • RFCOMM
  • CFCOMM
  • UHCOMM
A

RFCOMM

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12
Q

What is the bridge that connects and moves information between RFCOMM and the upper layers?

  • PCAP
  • L1CAP
  • L2CAP
  • CCAP
A

L2CAP

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13
Q

What is the link that communicates between the host and the controller?

  • Mode Controller Interface (MCI)
  • Link Manager Protocol (LMP)
  • Host Controller User (HCU)
  • Host Controller Interface (HCI)
A

Host Controller Interface (HCI)

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14
Q

What is the first step of the controller protocol stack and is inaccessible without special hardware?

  • Link Manager Protocol (LMP)
  • Baseband Manager Protocol (BMP)
  • Host Controller Interface (HCI)
  • None of the Above
A

Link Manager Protocol (LMP)

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15
Q

What is the final layer of framing a packet and specifies over-the-air characteristics such as transmission rate?

  • Lowband
  • Highband
  • Waistband
  • Baseband
A

Baseband

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16
Q

A Bluetooth address is how many bits?

  • 32
  • 36
  • 38
  • 48
A

48

17
Q

The first 24 bits of a Bluetooth Mac Address are called what?

  • NIC
  • OUI
  • UAA
  • None of the above
A

OUI

18
Q

Which part of the Bluetooth Mac Address help to determine the manufacturer of the device?

  • OUI
  • NIC
  • UAA
  • None of the Above
A

OUI

19
Q

What is used to help determine the frequency hopping pattern in radio communication between Bluetooth devices?

  • AB_ADDR
  • CD_ADDR
  • BD_ADDR
  • AD_ADDR
A

BD_ADDR

20
Q

What are the three main parts that Bluetooth Address Structure breaks into?

  • NAP
  • UAP
  • LAP
  • All of the Above
A

All of the Above

21
Q

What main part of the Bluetooth Address Structure contains the first 16 bits of the OUI?

  • UAP
  • LAP
  • NAP
  • GAP
A

NAP

22
Q

Which main part of the Bluetooth Address Structure contains the remaining 8 bits of the OUI?

  • UAP
  • LAP
  • NAP
  • GAP
A

UAP

23
Q

Which portion of the Bluetooth address is allocated by the vendor of the device?

  • UAP
  • LAP
  • NAP
  • GAP
A

LAP

24
Q

How many bits is the LAP portion of the Bluetooth MAC Address?

  • 8
  • 16
  • 24
  • 48
A

24

25
Q

[True / False]

Both authentication and encryption are built into the Bluetooth controller chip when manufactured?

A

True

26
Q

[True / False]

Developers can choose to use both authentication and encryption, neither, or one over the other.

A

True

27
Q

What profile info do devices share during the pairing process?

  • PIN
  • Random Number
  • Bluetooth MAC address (BD_ADDR)
  • All of the Above
A

All of the Above

28
Q

Profile info during the pairing process is used to generate a common secret key known as what?

  • HEX KEY
  • CRYPTO KEY
  • LINK KEY
  • SAFE KEY
A

LINK KEY

29
Q

[TRUE / FALSE]

A brute-force attack can allow an attacker to derive the LINK KEY from the pairing exchange and authentication exchange by passive scanning.

A

TRUE

30
Q

Which pairing mode in Secure Simple Pairing is where two devices display a 6-digit number and the user confirms they match in order to pair?

  • Numeric Comparison
  • Just Works
  • Passkey Entry
  • Out of Band
A

Numeric Comparison

31
Q

Which pairing mode allows pairing with different technology such as Near Field Communication (NFC)?

  • Numeric Comparison
  • Just Works
  • Passkey Entry
  • Out of Band
A

Out of Band

32
Q

Which pairing mode is used with devices such as headsets that have no input methods?

  • Numeric Comparison
  • Just Works
  • Passkey Entry
  • Out of Band
A

Just Works

33
Q

What is the Bluetooth range?

  • 5m
  • 10m
  • 20m
  • 40m
A

10m

34
Q

[TRUE / FALSE]

The goal of scanning and reconnaissance is to discover the BD_ADDR, and there are four main ways to do so.

A

TRUE

35
Q

Which type of discovery is when the physical device is accessible, and the manufacturer and model number can be found?

  • Active Discovery
  • Passive Discovery
  • Hybrid Discovery
  • Traffic Analysis
A

Passive Discovery

36
Q

Which type of discovery is when a target Bluetooth device is in discoverable mode, and you are able to transmit inquiry scan messages and listen for responses?

  • Active Discovery
  • Passive Discovery
  • Hybrid Discovery
  • Traffic Analysis
A

Active Discovery

37
Q

What protocol is used to identify what services are available on a specific Bluetooth device?

  • ADP
  • TCP
  • SDP
  • UDP
A

SDP

Module I: Wireless (8 decks)

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