Deck 7: Digital Security

Question 1

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

A) ​AES 
B) ​DDoS 
C) ​IMSI 
D) ​TLS

Answer 1

  A

Question 2

 ​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.

Answer 2

  A

Question 3

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

Answer 3

  False

Question 4

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

Question 5

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

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

Question 6

 ​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 7

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

Question 8

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

Question 9

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

Question 10

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

Question 11

 ​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 12

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

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

Question 13

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

Question 14

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

Question 15

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

Question 16

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

Question 17

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

Question 18

 ​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

Question 19

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

Question 20

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

Question 21

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

Question 22

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

Question 23

 ​__________ 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 24

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

Question 25

 ​Most trojans are not designed to replicate themselves. 

Question 26

 ​Stuxnet is a notorious computer _______.

Question 27

 ​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 28

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

Question 29

 ​Viruses spread themselves from one device to another. 

Question 30

 ​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 31

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

Question 32

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

Question 33

 ​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 34

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

Question 35

 ​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 36

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

Question 37

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

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

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

Question 40

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

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

 ​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 43

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

Question 44

 ​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 45

 ​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 46

 ​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 47

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

Question 48

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

Question 49

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

Question 50

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

Question 51

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

Question 52

 ​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 53

 ​The best defense against malware is _____________. 

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

Question 54

 ​Any data entering a digital device could be malware. 

Question 55

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

Question 56

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

Question 57

 ​Trojans depend on ________ to spread. 

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

Question 58

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

Question 59

 ​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 60

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

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

Question 61

 ​__________ 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 62

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

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

Question 63

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

Question 64

 ​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 65

 ​Correctly installed antivirus software will prevent all intrusions. 

Question 66

 ​Which of the following would be considered spyware? 

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

Question 67

 ​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 68

 ​_______ 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 69

 ​MITM attacks include which of the following? 

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

Question 70

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

Question 71

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

Question 72

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

Question 73

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

Question 74

 ​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 75

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

Question 76

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

Question 77

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

Question 78

 ​ 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 79

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

Question 80

 ​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