ITN - Module 16 - Network Security Fundamentals

What type of attack may involve the use of tools such as nslookup and fping?

• Access attack

• DOS attack

• Reconnaissance attack

• Brutforce attack

• Phishing attack

What is the difference between a virus and a worm?

• Viruses self-replicate but worms do not

• Worms self-replicate but viruses do not

• Worms require user intervention typically attaching itself to a program

• Viruses typically enter networks by exploiting vulnerabilities

• Worms are spread via file collaboration, email attachments and USB drives

What is the purpose of an IPS?

• Detecting and blocking of attacks in real time

• Authenticating users

• Informing users of a malicious attack

• Filtering of nefarious websites

• Network Policy Statement

What is the purpose of the network security authorization function?

• Keep track of the actions of a user

• To require users to prove who they are

• To provide a challenge and response question

• To determine which resources a user can access

Which firewall feature is used to ensure that packets coming into a network are legitimate responses to requests initiated from internal hosts?

• Application filtering

• URL filtering

• Stateful packet inspection

• Packet filtering

• Transport filtering

What feature of SSH makes it more secure than telnet for device management?

• Plain text transmission
• No authentication required
• MAC address filtering
• Data encryption
• Stronger password requirements

Which component is designed to protect against unauthorised communications to and from a computer?

• Encryption
• Antivirus software
• Firewall
• Antimalware

• Security centre

Which malicious code attack is self contained and tries to exploit a specific vulnerability in a system being attacked?

• Worm

• Trojan

• Virus

• Exploit

• Phishing

What type of firewalls are there available to network administrators and company Directors? (Choose three)

• Cloud firewalls
• Software based firewalls

• Hardware based firewalls

• Hybrid firewalls

What is the most effective way of protecting against data loss?

• Security

• Installing IPS

• Strong username and password

• Regular Backups

• Firewalls