What are signatures as they relate to security threats?
Correct answer(s):
- one or more code patterns within a specific type of malware
Topic
Introduction to Computer Studies
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Quizzes in Introduction to Computer Studies
A group of users on the same network are all complaining about their computers running slowly. After investigating, the technician determines that these computers are part of a zombie network. Which type of malware is used to control these computers?
Correct answer(s):
- botnet
A user notices that files created and saved locally last week are missing and asks the technician to investigate. The technician suspects there has been a security breach. Which type of malware could be responsible?
Correct answer(s):
- Trojan
A retail store wants to secure laptops that are on display. The store manager also wants a record of which employees enter the backroom where inventory is kept. Which security option would work best for this situation?
Correct answer(s):
- cable locks and a token-based lock on the backroom
How can users working on a shared computer keep their personal browsing history hidden from other workers that may use this computer?
Correct answer(s):
- Operate the web browser in private browser mode.
A user calls the help desk reporting that a laptop is not performing as expected. Upon checking the laptop, a technician notices that some system files have been renamed and file permissions have changed. What could cause these problems?
Correct answer(s):
- The laptop is infected by a virus.
What would cause a Microsoft Windows update to fail?
Correct answer(s):
- A required prior update was not installed.
Which type of firewall serves as a relay between users and servers on the Internet, inspects all traffic, and allows or denies traffic based on a set of rules?
Correct answer(s):
- proxy firewall
When would a PC repair person want to deploy the idle timeout feature?
Correct answer(s):
- when users are leaving their desk but remaining logged on
A system administrator has been asked to protect the sensitive data on the Windows 7 computers of all management employees. Which Windows feature can be used to selectively encrypt individual files within the user accounts of each manager?
Correct answer(s):
- EFS
After confirming the removal of a virus from a computer, how should the technician ensure and verify the full functionality of the system?
Correct answer(s):
- Check for the latest OS patches and updates.
The IT department is reporting that a company web server is receiving an abnormally high number of web page requests from different locations simultaneously. Which type of security attack is occurring?
Correct answer(s):
- DDoS
A user receives a phone call from a person who claims to represent IT services and then asks that user for confirmation of username and password for auditing purposes. Which security threat does this phone call represent?
Correct answer(s):
A high technology company has an issue with unauthorized people gaining access into the company by following an authorized employee through the secure entrance. Which two measures could help with this security breach? (Choose two.)
Correct answer(s):
- mantrap
- security guard that checks IDs
Which two algorithms are used for hash encoding to guarantee the integrity of data? (Choose two.)
Correct answer(s):
- MD5
- SHA
Which two items are used in asymmetric encryption? (Choose two.)
Correct answer(s):
- a private key
- a public key
A file called new_resume has the following file permissions: rw-r-x–x . What two facts can be determined from these permissions? (Choose two.)
Correct answer(s):
- Members of the group have read and executed access to the file.
An instructor is discussing facts about different mobile device operating software. The instructor states: “When the device roams out of the range of any Wi-Fi networks, it can connect to the cellular data network if this feature is enabled.” To which OS does this relate: iOS, Android, or both?
Correct answer(s):
- both
An instructor is discussing facts about different mobile device operating software. The instructor states: To synchronize a mobile device to a PC, iTunes must be installed on the PC. To which OS does this relate: iOS, Android, or both?
Correct answer(s):
- iOS
An instructor is discussing facts about different mobile device operating software. The instructor states: The start voice control function can be performed with the home button. To which OS does this relate: iOS, Android, or both?
Correct answer(s):
- iOS