ÔN TẬP AN TOÀN THÔNG TIN

A security tool to verify the authenticity of the message and claimed identity of the sender and to verify the message integrity is

• Encryption

• Firewalls

• Digital certificates

• Digital signature

_____ is NOT a password attack

• Brute force attack

• Dictionary attack

• Phishing attack

• Rainbow tables

What is the purpose of a password manager?

• To automatically generate and store complex passwords

• To share passwords with friends and family

• To encrypt your computer's hard drive

• To protect against malware

Which of the following is a common method for protecting against password leaks and breaches?

• Sharing your passwords with trusted colleagues

• Reusing the same password across multiple accounts

• Changing your password every six months

• Checking if your passwords have been compromised in data breaches

What is a computer virus?

• A type of software that enhances computer performance

• A malicious program that replicates itself and infects other files or systems

• A protective barrier for your computer

• A tool for optimizing hard drive storage

Which of the following is NOT a potential consequence of a malicious backdoor?

• Unauthorized access to sensitive data

• Disabling antivirus software

• Slowing down computer performance

• Increasing internet speed

How can organizations defend against the threat of backdoors?

• By installing more backdoors for legitimate users

• By regularly updating and patching software

• By disabling all network security measures

• By sharing backdoor information with the public

What is a Denial-of-Service (DoS) attack?

• A cyberattack that steals sensitive information

• An attack that compromises a computer's operating system

• An attack that floods a target system with traffic to make it unavailable

• A type of phishing attack

What is the primary difference between a DoS attack and a Distributed Denial-of-Service (DDoS) attack?

• A DDoS attack is faster and more destructive

• A DDoS attack is launched by a single attacker, while a DoS attack involves multiple attackers

• A DDoS attack uses multiple compromised devices to flood a target, while a DoS attack uses a single device

• There is no difference; the terms are used interchangeably

In a DDoS attack, what are the devices that are compromised and used to launch the attack called?

• Zombies

• Bots

• Phishers

• Malware