Cyber-hacker Protection Test 1 — Questions and Answers
Question 1: Which of the following best describes a hacker of computers?
- A capable coder who creates training software for new hires.
- An expert coder who sneakily breaks into computers without authorization. (Correct answer)
- A knowledgeable programmer who aids in the setup of new software for a corporation.
- A knowledgeable programmer who exploits information with authorized access offered on a computer.
Correct answer: An expert coder who sneakily breaks into computers without authorization.
In the context of cybersecurity, a hacker is typically defined as an individual who gains unauthorized access to computer systems or networks. This access is often achieved through exploiting vulnerabilities, bypassing security measures, and without the explicit permission of the system owner. Their motivations can range from malicious intent to ethical security testing.
Question 2: Which of the following is a phishing example?
- A message asking the receiver to forward it to friends.
- An email instructing the recipient to input personal information on a phony website (Correct answer)
- A message in an email alerting the recipient to a virus hazard.
- An email with a download link for an attachment.
Correct answer: An email instructing the recipient to input personal information on a phony website
Phishing is a social engineering attack where attackers attempt to trick individuals into revealing sensitive information, such as usernames, passwords, or credit card details. This is commonly done through deceptive emails or messages that appear to be from a legitimate entity, instructing the recipient to click a link to a fake website where they are prompted to enter their personal data.
Question 3: The idea of utilizing the same key for both encryption and decryption is known as .
- Substitution cipher
- Symmetric key system (Correct answer)
- Caesar cipher
- Asymmetric key system
Correct answer: Symmetric key system
A symmetric key system, also known as symmetric-key cryptography, uses a single, shared secret key for both encrypting and decrypting data. This means the same key used to scramble the information is also used to unscramble it. While efficient, secure communication requires both parties to securely exchange and manage this shared secret key.
Question 4: Virtual "listening in" on data exchanged over a WiFi network that is not secure (not encrypted).
- Wi-Fi Eavesdropping (Correct answer)
- Wl-Fl Master
- Spyware
- WPA2 Handshake Vulnerabilities
Correct answer: Wi-Fi Eavesdropping
Wi-Fi Eavesdropping refers to the act of intercepting and monitoring data transmitted over an unsecured (unencrypted) Wi-Fi network. Attackers can 'listen in' on network traffic, capturing sensitive information like login credentials, personal messages, or financial data as it travels wirelessly. Using encrypted Wi-Fi protocols like WPA2/WPA3 helps prevent this.
Question 5: Of the following, which is a DoS attack?
- Sending false requests nonstop to a targeted network. (Correct answer)
- Injecting fake instructions for networking re-configuration
- Forcing computer connections to be lost and then reestablished using the attacker's access point
- Forcing computer connections to be lost and then reestablished using the attacker's access point
Correct answer: Sending false requests nonstop to a targeted network.
A Denial of Service (DoS) attack aims to make a machine or network resource unavailable to its intended users. This is typically achieved by overwhelming the target system with a flood of traffic or requests, consuming its resources and preventing legitimate users from accessing the service. Sending nonstop false requests is a classic method to achieve this overload.
Question 6: Which of the following remote access protocols is secure?
- FTP
- Telnet
- SMTP
- SSH (Correct answer)
Correct answer: SSH
SSH (Secure Shell) is a cryptographic network protocol that provides a secure channel over an unsecured network for remote access and data transfer. Unlike older protocols like Telnet or FTP, SSH encrypts all communications, including authentication credentials, protecting them from eavesdropping and tampering. This makes it the preferred choice for secure remote administration.
Question 7: Which of the following offers the strongest wireless signal encryption?
- WAP
- WIPS
- WPA (Correct answer)
- WEP
Correct answer: WPA
WPA (Wi-Fi Protected Access) was developed as an interim solution to address the serious security flaws found in the older WEP protocol. WPA introduced stronger encryption (TKIP) and improved authentication methods, making it significantly more secure than WEP. While WPA2 and WPA3 offer even greater security, WPA was a crucial step forward in wireless encryption among the given options.
Cyber-hacker Protection Test 1
Which of the following best describes a hacker of computers?