Deck 7: Digital Security

Question 1

​Android devices automatically encrypt data stored on the device when a user activates the login password.

Answer 1

False

Question 2

​Which of the following is not an example of an authentication protocol?

A) ​password
B) ​PINs
C) ​fingerprint scanner
D) ​all of the above

Answer 2

D

Question 3

​Which of the following terms would best match this definition: Transforms a message or data file in such a way that its contents are hidden from unauthorized readers.

A) ​authentication
B) ​encryption
C) ​ciphertext
D) ​decryption

Answer 3

B

Question 4

​Password _________ is a measure in bits of a password's unpredictability.

Question 5

​It is not possible to encrypt a Windows hard drive volume.

Question 6

​There are various encryption methods, but __________ is the encryption standard currently used worldwide.

A) ​AES
B) ​DDoS
C) ​IMSI
D) ​TLS

Question 7

Brute force attacks methodically try every possible password until the correct one is found.​

Question 8

​Which of the following is not a characteristic of a weak password?

A) ​Eight characters in length and include one or more uppercase letters, numbers, and symbols.
B) ​Uses default passwords such as password, admin, system, and guest.
C) ​Any sequence that includes a user name.
D) ​Use of words from a dictionary.

Question 9

​If you want to store passwords on your digital device, make sure to _________ the file in which they are stored.

Question 10

​Passwords used as encryption ________ help to make hijacked data unusable.

Question 11

​Which of the following type of attack uses password-cracking software to generate every possible combination of letters, numerals, and symbols.

A) entropy​
B) ​massive
C) ​dictionary
D) ​brute force

Question 12

​A cryptographic __________ is a procedure for encryption or decryption.

A) ​firewall
B) ​ciphertext
C) ​key
D) ​algorithm

Question 13

​An original message or file that has not yet been encrypted is referred to as ciphertext.

Question 14

​Conventional wisdom tells us that strong passwords are at least _____ characters in length and include one or more uppercase letters, numbers, and symbols.

Question 15

​The single most effective security measure for digital devices is to password protect access to them.

Question 16

​OS X devices include a utility that automatically encrypts data stored locally.

Question 17

A cryptographic ________ is a word, number, or phrase that must be known to encrypt or decrypt data.​

Question 18

​A(n) _______ password is difficult to hack.

Question 19

​Password entropy is a measure in _____ of a password's unpredictability.

Question 20

​If you feel more secure with a totally random and unique password for each of your logins, then a(n) _______________ is an excellent option.

A) ​keylogger
B) ​encryption key
C) ​password manager
D) ​personal firewall

Question 21

​A key characteristic of viruses is their ability to lurk in a device for days or months, quietly replicating themselves.

Question 22

Password managers store passwords in a(n) _________ file​

Question 23

​The action carried out by malware code is referred to as a(n) _______.

Question 24

​Password managers can generate unique passwords that have very good entropy.

Question 25

​A password manager can store passwords in an encrypted file located at which of the following storage locations?

A) ​ local storage
B) ​cloud storage
C) ​USB storage
D) ​all of the above

Question 26

​Stuxnet is a notorious computer _______.

Question 27

​ ________ refers to any computer program designed to surreptitiously enter a digital device.

Question 28

​Which of the following is not a characteristic of a computer worm?

A) ​self-replicating
B) ​usually standalone executable programs
C) ​self-distributing
D) ​spread through a process called side-loading

Question 29

​What is the process called when an app from a source other than an official app store is installed on a device?

A) ​Side-loading
B) ​Rootkit
C) ​Code injection
D) ​Dropper

Question 30

​In addition to replicating itself, a virus self-distributing.

Question 31

​Viruses spread themselves from one device to another.

Question 32

​Common classifications of _________ include viruses, worms, and trojans.

Question 33

​Most trojans are not designed to replicate themselves.

Question 34

​__________ is the process of modifying an executable file or data stream by adding additional commands

A) ​Keylogging
B) ​Pharming
C) ​Brute force attack
D) ​Code injection

Question 35

​Similar to a worm, a trojan is not designed to spread itself to other devices.

Question 36

​The core function of a password manager is to store user IDs with their corresponding ________.

Question 37

​A computer _______ is a self-replicating, self-distributing program designed to carry out unauthorized activity on a victim's device.

Question 38

​If you use a password manager, what do you as the user need to remember?

A) ​Your passwords for individual sites.
B) ​The master password.
C) ​Form data including credit card numbers.
D) ​All of the above

Question 39

​A computer _________ is a set of self-replicating program instructions that surreptitiously attaches itself to a legitimate executable file on a host device.

A) trojan​
B) ​virus
C) ​worm
D) ​all of the above

Question 40

​Any code that is designed to hide the existence of processes and privileges is referred to as a(n) _______.

Question 41

​Which of the following sequence of events best describes an online intrusion?

A) ​Malware enters the device, then opens a backdoor, leading to an open communications link on the device that a hacker can exploit.
B) ​A backdoor is opened on the device locally, which allows malware to be loaded onto the device by a hacker.
C) ​A USB drive containing a trojan is inserted into a device which opens a backdoor, allowing a hacker access to the device.
D) None of the above​

Question 42

​A(n) __________ is an undocumented method of accessing a digital device.

Question 43

​Antivirus software can use techniques called__________ to detect malware by analyzing the characteristics and behavior of suspicious files.

A) ​heuristic analysis
B) ​virus signature
C) ​side-loading
D) ​port scan

Question 44

​Trojans depend on ________ to spread.

A) ​self-replication
B) ​social engineering
C) ​rootkits
D) ​code injection

Question 45

​The best defense against malware is _____________.

A) ​encryption
B) ​entropy
C) ​antivirus software
D) ​all of the above

Question 46

​Any data entering a digital device could be malware.

Question 47

​A(n) _________ is designed to deliver malicious code into a device.

Question 48

​Heuristics may produce false positives that mistakenly identify a legitimate file as malware.

Question 49

​A virus __________ is a section of program code that contains a unique series of instructions known to be part of a malware exploit.

Question 50

​RATs can be used to create a backdoor to a victim's device that takes control of the device's camera.

Question 51

​When antivirus software detects malware, which of the following would not be a course of action you could take?

A) ​Conduct a heuristic analysis.
B) ​Repair the infection.
C) ​Put the infected file into quarantine.
D) ​Delete the infected file.

Question 52

​Which type of device is the top target for ransomware?

A) ​Desktops
B) ​Laptops
C) ​Smartphones
D) ​All of the above

Question 53

​Once you have installed antivirus software, you don't typically need to keep it running full time in the background

Question 54

​A(n) ________________ takes place when an unauthorized person gains access to a digital device by using an Internet connection and exploiting vulnerabilities in hardware or software.

A) ​address spoofing
B) ​online intrusion
C) ​brute force attack
D) ​zero-day attack

Question 55

​__________ are standalone programs that masquerade as useful utilities or applications

Question 56

​A ___________ is malware that arrives in a trojan disguised as legitimate software and sets up a secret communication link to a hacker.

A) ​DDoS
B) ​TLS
C) ​PUP
D) ​RAT

Question 57

​A virus __________ usually arrives as an email message that contains warnings about a supposedly new virus.

A) ​payload
B) ​signature
C) ​hoax
D) ​dropper

Question 58

​A(n) __________ is a computer program that seems to perform one function while actually doing something else.

Question 59

​One method of heuristic analysis allows the suspicious file to run in a guarded environment called a(n) ___________ .

Question 60

​If you are traveling and expect to access files on a computer that you've left at home, make sure the remote access utilities is turned off.

Question 61

​ A(n) __________ is a device or software that is designed to block unauthorized access while allowing authorized communications.

A) ​Netstat
B) ​firewall
C) ​Evil Twin
D) ​digital certificate

Question 62

​Which of the following would be considered spyware?

A) ​a keylogger
B) ​firewall software
C) ​Antivirus software
D) ​all of the above

Question 63

​__________ changes an originating address or a destination address to redirect the flow of data between two parties.

A) ​Social engineering
B) ​IMSI catching
C) ​Address spoofing
D) ​All of the above

Question 64

​A network utility called ______________ produces a detailed list of open ports on a device.

Question 65

​Correctly installed antivirus software will prevent all intrusions.

Question 66

​Antivirus software cannot be expected to block threats that do not arrive in the form of malware.

Question 67

​_____________ software shields certain applications against behaviors commonly exhibited by intrusions.

A) ​Malware
B) ​Anti-exploit
C) ​Antivirus
D) ​Virus signature

Question 68

​ ___________ locks a device and then requests payment for an unlocking code.

Question 69

​Which of the following can be used to block unauthorized access while allowing authorized communications on a device or network?

A) ​network router
B) ​personal firewall
C) ​hardware that uses a NAT
D) ​all of the above

Question 70

​Hackers who gain control over several computers can organize them into a client-server network known as a(n) _______.

Question 71

​To establish a(n) ________, hackers set up an unsecured Wi-Fi hotspot complete with an Internet connection.

A) ​Keylogger
B) ​Evil Twin
C) ​botnet
D) ​None of the above

Question 72

​The objective of a MITM attack is for a third party to block communications between two entities.

Question 73

​Any software that secretly gathers personal information without the victim's knowledge is classified as __________.

Question 74

​MITM attacks include which of the following?

A) ​Address spoofing
B) ​IMSI catchers
C) ​Evil Twins
D) ​all of the above

Question 75

​_______ can be used to flood a Web site with so much traffic that it can no longer provide its intended service.

A) ​DDoS
B) ​Botnets
C) ​Commands from a botmaster
D) ​All of the above

Question 76

​A(n) _____________ is a LAN server that is designed to look like a legitimate Wi-Fi hotspot.

Question 77

​Hackers can use ports to communicate with devices in botnets.

Question 78

​A(n) ______________ attack exploits previously unknown vulnerabilities in software applications, hardware, and operating system program code.

A) zero-day​
B) ​rootkit
C) ​brute force
D) ​dictionary

Question 79

​A(n) __________ pings a packet of data to a port in order to see if that port is open or not.

A) ​rootkit
B) ​port scan
C) ​virus signature
D) ​heuristic analysis

Question 80

​A botnet has a server that is controlled by hackers.