infosec

Collisions should occur no more than 15 percent of the time.

Which of these is NOT a characteristic of a secure hash algorithm?

USB OTG is only available for connecting Android devices to a subnotebook.

Enki received a request by a technician for a new subnotebook computer. The technician noted that he wanted USB OTG support and asked Enki's advice regarding its. Which of the following would Enki NOT tell him?

Perfect forward secrecy

What are public key systems that generate different random public keys for each session?

It separates personal data from corporate data.

What does containerization do?

Geofencing

What enforces the location in which an app can function by tracking the location of the mobile device?

two files produce the same digest

What is a collision?

plaintext

What is data called that is to be encrypted by inputting it into a cryptographic algorithm?

The time between when a byte is input into a cryptographic cipher and when the output is obtained.

What is low latency?

geolocation

What is the process of identifying the geographical location of a mobile device?

screen lock

What prevents a mobile device from being used until the user enters the correct passcode?

Push notification services

Which of these is used to send SMS text messages to selected users or groups of users?

Hardware Security Module (HSM)

Which of these provides cryptographic services and is external to the device?

Arduino

Agape has been asked to experiment with different hardware to create a controller for a new device on the factory floor. She needs a credit-card-sized motherboard that has a microcontroller instead of a microprocessor. Which would be the best solution?

availability

Akira is explaining to his team members the security constraints that have made it a challenge for protecting a new embedded system. Which of the following would Akira NOT include as a constraint?

Wireless carriers are reluctant to provide firmware OTA updates because of the bandwidth the updates consume on their wireless networks.

Aoi has been asked to provide research regarding adding a new class of Android smartphones to a list of approved devices. One of the considerations is how frequently the smartphones receive firmware OTA updates. Which of the following reasons would Aoi NOT list in her report as a factor in the frequency of Android firmware OTA updates?

rooting

Banko's sister has just downloaded and installed an app that allows her to circumvent the built-in limitations on her Android smartphone. What is this called?

downgrade attack

Basil was reading about a new attack that forces the system to abandon a higher cryptographic security mode of operation and instead fall back to an older and less secure mode. What type of attack is this?

ROT13

Brielle is researching substitution ciphers. She came across a cipher in which the entire alphabet was rotated 13 steps. What type of cipher is this?

SHA3-512

Cicero is researching hash algorithms. Which algorithm would produce the longest and most secure digest?

Nonrepudiation

Cryptography can prevent an individual from fraudulently reneging on an action. What is this known as?

As computers become more powerful, the ability to compute factoring has increased.

Deo has been asked to explain RSA to his colleague. After his explanation, Deo is asked what, if any, weaknesses RSA has. How would Deo respond?

verify the receiver

Egor wanted to use a digital signature. Which of the following benefits will the digital signature NOT provide?

UEM

Hakaku needs a tool with a single management interface that provides capabilities for managing and securing mobile devices, applications, and content. Which tool would be the best solution?

Apple uses file-based encryption to offer a higher level of security.

Hisoka is creating a summary document for new employees about their options for different mobile devices. One part of his report covers encryption. What would Hisoka NOT include in his document?

Alice's public key

If Bob wants to send a secure message to Alice using an asymmetric cryptographic algorithm, which key does he use to encrypt the message?

CYOD

In her job interview, Xiu asks about the company policy regarding smartphones. She is told that employees may choose from a limited list of approved devices but that she must pay for the device herself; however, the company will provide her with a monthly stipend. Which type of enterprise deployment model does this company support?

Mobile device management (MDM)

What allows a device to be managed remotely?

Steganography

Which of the following hides the existence of information?

unknown

Which of the following is FALSE about "security through obscurity"?

unknown

Which of the following is NOT a characteristic of the Trusted Platform Module (TPM)?

trusted places

Which of the following is NOT a context-aware authentication?

SHA

Which of the following is NOT a symmetric cryptographic algorithm?

digest

Which of the following is not to be decrypted but is only used for comparison purposes?

RCS

Which of the following technologies can convert a texting app into a live chat platform?

risk

Which of these is NOT a basic security protection for information that cryptography can provide?

last known good configuration

Which of these is NOT a security feature for locating a lost or stolen mobile device?

password

Which of these is considered the strongest type of passcode to use on a mobile device?

Advanced Encryption Standard

Which of these is the strongest symmetric cryptographic algorithm?

MAM

Which tool manages the distribution and control of apps?

RTOS

Which type of OS is typically found on an embedded system?