Cyber Security Software Test 1 — Questions and Answers
Question 1: Which one of the following describes why it is important to update antivirus software regularly?
- To ensure that the software can detect outdated infections.
- Preventing unwanted bulk texts from reaching your PC
- To stop dangerous software from spreading across the Internet.
- To secure your PC against all recognized viruses (Correct answer)
Correct answer: To secure your PC against all recognized viruses
Regular updates for antivirus software are critical because new viruses and malware are constantly being developed and released. These updates provide the software with the latest virus definitions and detection algorithms. This ensures that your PC is protected against the most current and recognized threats, safeguarding your system from infection.
Question 2: Which of the following can guard against the possibility of receiving unsolicited emails on a computer?
- Anti-virus software. (Correct answer)
- Anti-spyware software.
- PC diagnostic software.
- Anti-spam software.
Correct answer: Anti-virus software.
While anti-spam software is specifically designed to filter unsolicited emails, many modern antivirus suites offer comprehensive internet security features. These often include email scanning and phishing protection, which can detect and block malicious unsolicited emails containing viruses, malware, or phishing attempts. Therefore, antivirus software can indeed guard against the possibility of receiving certain types of harmful unsolicited emails.
Question 3: Which of the following protect a computer against the possibility of harmful software?
- Anti-spyware software.
- Anti-spam software.
- Web tracking software.
- PC diagnostic software. (Correct answer)
Correct answer: PC diagnostic software.
While anti-spyware and anti-virus software are primary tools for direct protection, PC diagnostic software can play an indirect role in guarding against harmful software. It identifies system anomalies, unusual processes, or performance degradation that might be symptoms of an infection. By detecting these indicators, it prompts users to investigate and potentially remove the threat, thus contributing to overall system security.
Question 4: A website or email address that has been made to appear as though it is from a reliable source. It might be challenging to determine whether the sender of an email is genuine because the email address might even contain your name or the name of someone you know.
- Spam
- Spoofing (Correct answer)
- Wi-Fi Eavesdropping
- Spyware
Correct answer: Spoofing
Spoofing refers to the act of disguising a communication from an unknown source as being from a known, trusted sender. This tactic is used to trick recipients into believing the message is legitimate, often by manipulating email addresses or website URLs to appear authentic. The goal is typically to gain unauthorized access to systems or information by exploiting trust.
Question 5: Which of the following attacks involves the self-replication of a carrier file?
- Spam
- Virus (Correct answer)
- Trojan
- Worm
Correct answer: Virus
A virus is a type of malicious software that attaches itself to a legitimate program or file and then self-replicates. When the infected 'carrier file' is executed, the virus code runs, often spreading to other programs on the computer. Unlike worms, viruses require a host program to spread and execute.
Question 6: Which of the following best sums up the use of firewalls?
- To guard against a computer being destroyed in a fire.
- To make data download from websites simple.
- To find and remove infections that are already on a computer.
- To stop incoming transmissions from being used for unauthorized access. (Correct answer)
Correct answer: To stop incoming transmissions from being used for unauthorized access.
Firewalls act as a barrier between a trusted internal network and untrusted external networks, like the internet. Their primary function is to monitor and control incoming and outgoing network traffic based on predefined security rules. This prevents unauthorized access attempts and blocks malicious data transmissions from reaching internal systems.
Question 7: What two categories of network layer firewalls are there?
- Mandatory and discretionary
- Anomaly and signature
- Dynamic and static
- Stateful and stateless (Correct answer)
Correct answer: Stateful and stateless
Network layer firewalls primarily operate by examining the header information of network packets. Stateful firewalls track the state of active connections, allowing them to make more intelligent decisions about which packets to permit. Stateless firewalls, on the other hand, examine each packet in isolation without considering its context within a connection, making them simpler but less secure.
Cyber Security Software Test 1
Which one of the following describes why it is important to update antivirus software regularly?