Mod 7: Bluetooth - PE Flashcards by Rubi Reeser

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

HF
VHF
UHF
None of the above

UHF

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[TRUE / FALSE]

Bluetooth uses Frequency Hopping Spread Spectrum (FHSS).

True

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[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.

False

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

Margot Robbie
Hedy Lamarr
Halle Barrie
Jennifer Aniston

Hedy Lamarr

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How many bluetooth channels are available?

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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

The local devices clock and chosen inquiry access code.

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[TRUE / FALSE]

Bluetooth protocol is broken down into four category stacks.

FALSE

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[True / False]

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

True

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

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

All of the Above

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[TRUE / FALSE]

The Bluetooth host is responsible for higher-layer protocols.

True

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

LRCOMM
RFCOMM
CFCOMM
UHCOMM

RFCOMM

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

PCAP
L1CAP
L2CAP
CCAP

L2CAP

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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)

Host Controller Interface (HCI)

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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

Link Manager Protocol (LMP)

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

Lowband
Highband
Waistband
Baseband

Baseband

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A Bluetooth address is how many bits?

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

NIC
OUI
UAA
None of the above

OUI

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

OUI
NIC
UAA
None of the Above

OUI

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

AB_ADDR
CD_ADDR
BD_ADDR
AD_ADDR

BD_ADDR

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

NAP
UAP
LAP
All of the Above

All of the Above

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

NAP

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

UAP

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

LAP

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

[True / False] Both authentication and encryption are built into the Bluetooth controller chip when manufactured?

True

[True / False] Developers can choose to use both authentication and encryption, neither, or one over the other.

True

What profile info do devices share during the pairing process? * PIN * Random Number * Bluetooth MAC address (BD\_ADDR) * All of the Above

All of the Above

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

LINK KEY

[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.

TRUE

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

Numeric Comparison

Which pairing mode allows pairing with different technology such as Near Field Communication (NFC)? * Numeric Comparison * Just Works * Passkey Entry * Out of Band

Out of Band

Which pairing mode is used with devices such as headsets that have no input methods? * Numeric Comparison * Just Works * Passkey Entry * Out of Band

Just Works

What is the Bluetooth range? * 5m * 10m * 20m * 40m

10m

[TRUE / FALSE] The goal of scanning and reconnaissance is to discover the BD\_ADDR, and there are four main ways to do so.

TRUE

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

Passive Discovery

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

Active Discovery

What protocol is used to identify what services are available on a specific Bluetooth device? * ADP * TCP * SDP * UDP

SDP