A-Level Presentation - 23 Network security

Open Ended

Describe a method you would use to identify vulnerabilities in a computer network.

Multiple Choice

Why is network security important in today's digital world?

• To keep computers running faster

• To prevent unauthorized access and protect sensitive data

• To make internet browsing quicker

• To reduce electricity consumption

Multiple Choice

According to Newton Lee, what should individuals ask themselves regarding cybersecurity?

• What cybersecurity can do for them

• What they can do for cybersecurity

• How to avoid cybersecurity responsibilities

• How to become a hacker

Open Ended

Why is computer security important, and what are some motives behind hacking?

Multiple Select

Which of the following are responsibilities of network managers?

• Preventing network threats

• Creating malware

• Ignoring vulnerabilities

• Detecting and preventing vulnerabilities

Multiple Select

Which of the following are threats to networks?

• Malware

• Phishing

• Data interception

• Firewall

Fill in the Blanks

Malware can cause a computer to

or become unresponsive.

Multiple Choice

Which of the following types of malware does NOT self-replicate?

• Virus

• Worms

• Trojans

• Macro Virus

Multiple Select

Which of the following statements are true about macro viruses?

• They attach to word processing or spreadsheet data files.

• They infect the template when the data file is opened.

• All files created using an infected template are also infected.

• Macro viruses are more harmful than other types of viruses.

Open Ended

Explain how viruses and worms differ in their replication process.

Fill in the Blanks

Worms can spread to other users by sending emails from the infected computer’s

.

Open Ended

Describe two ways in which trojans can compromise a computer system.

Multiple Choice

Which of the following is NOT a recommended preventive measure against malware?

• Install anti-virus software

• Update operating system and browser

• Download software from unknown sources

• Back-up system in off-site mode

Multiple Choice

Which of the following is NOT a preventive measure against malware?

• Opening email attachments from unknown senders

• Using email services that implement scans

• Treating mobile phones with care

• Following security guidelines for handheld devices

Open Ended

Explain how phishing attacks can trick users into revealing personal information. Use examples from the slides.

Multiple Select

Which of the following are signs that an email might be a phishing attempt?

• Strange sender email address

• Request for private information

• Link to a harmful website

• Email sent from a known contact

Open Ended

Why are not all phishing emails easily identifiable?

Fill in the Blanks

It is important to check the

and email address carefully regarding banking.

Fill in the Blanks

Denial of Service (DoS) attacks can prevent users from accessing

, emails, and banking applications.

Multiple Choice

Which type of attack involves infecting innocent computers with malware to flood websites and make them unavailable for users?

• Phishing attack

• Denial of Service (DoS) attack

• Man-in-the-middle attack

• SQL injection

Open Ended

Explain how data interception and theft can occur in a network, and describe the role of hijacking software in this process.

Fill in the Blanks

A secure connection between a browser and a website is usually indicated by a

symbol.

Multiple Select

Which of the following statements about data interception and theft are correct?

• Packet sniffing software can be used to examine data packets at a certain IP address.

• It is never legitimate to use packet sniffing software.

• Wireless LAN data interception can be done using special Wi-Fi adapters.

• Organisations use packet sniffing software to detect intrusion attempts.

Open Ended

Why is it important to use WPA encryption with a key of at least 128 bits for wireless networks?

Multiple Choice

Which SQL statement can be used by an attacker to retrieve all data from a table by exploiting SQL injection?

• SELECT * FROM table_users WHERE user_id= 16 OR 1=1

• SELECT * FROM table_users WHERE user_id= 16 AND 1=0

• SELECT * FROM table_users WHERE user_id= 16

• SELECT * FROM table_users WHERE user_id= 16 OR 1=0

Multiple Choice

Which of the following is NOT a typical objective when learning about network security?

• Understanding different threats to a computer or network

• Identifying vulnerabilities in your network

• Learning how to prevent threats and vulnerabilities

• Designing new computer hardware

Open Ended

Reflecting on today's lesson about network security, what is one strategy you learned to prevent threats and vulnerabilities in a network?