1. What is the primary function of a firewall in network security?
To block all network traffic
To monitor and control incoming and outgoing network traffic
To encrypt all data packets
To manage user permissions
Correct 1/1 Points
2. Which protocol is used to securely transfer files over the network?
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FTP
HTTP
SSH
SFTP
Correct 1/1 Points
3. What does the acronym VPN stand for?
Virtual Private Network
Variable Privacy Network
Virtual Public Network
Verified Private Network
Correct 1/1 Points
4. What type of attack involves intercepting and altering communications between two parties
without their knowledge?
Phishing
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Man-in-the-middle
SQL Injection
DDoS
Correct 1/1 Points
5. Which of the following is considered a secure protocol for web browsing?
HTTP
FTP
HTTPS
TELNET
Correct 1/1 Points
6. What is the main purpose of encryption in network security?
To authenticate users
To prevent unauthorized data access
To create backups
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To speed up data transmission
Correct 1/1 Points
7. What is a DDoS attack?
An attack that infects multiple devices
An attack that disrupts service by overwhelming a system with traffic
An attack that modifies data in transit
An attack that steals user credentials
Correct 1/1 Points
8. Which layer of the OSI model is responsible for encryption and decryption?
Physical layer
Data Link layer
Transport layer
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