NWF C3&4

1. What are common security threats in a network?

• a) Viruses, worms, trojan horse, adware
• b) Pretexting, phishing, vishing
• c) HTTP, FTP, DNS, SMTP
• d) Information thefts, data loss, disruption of service

2. Which category does DDoS belong to?

• a) Malware
• b) Denial of service attacks
• c) War-driving
• d) SSID broadcast

3. What is the purpose of MAC address filtering and DMZ in WLANS?

• a) Preventing malware
• b) Enhancing routing
• c) Controlling access to the network
• d) Broadcasting SSID

4. Which of the following is an Application Layer Protocol?

• a) TCP
• b) Telnet
• c) IP
• d) UDP

5. What do TCP and UDP belong to?

• a) Transport layer
• b) Internetwork layer
• c) Application layer
• d) Data link layer

6. What is the primary function of an Internetwork layer protocol?

• a) Ensuring data integrity
• b) Establishing connections
• c) Routing packets between networks
• d) Controlling access to resources

7. What is the main difference between TCP and UDP?

• a) TCP is connection-oriented, while UDP is connectionless
• b) UDP is more secure than TCP
• c) TCP is faster than UDP
• d) UDP is widely used for web browsing

8. Which of the following are well-known Ports?

• a) SSH, IMAP, DHCP
• b) HTTP, FTP, Telnet
• c) DNS, SMTP, Telnet
• d) Virus, worms, trojan horse

9. What does the "show running-config" command provide in Cisco routers?

• a) Display the current configuration of the router
• b) Show information about running processes
• c) List all connected devices
• d) Display routing information

10. In Cisco routers, what is the purpose of user exec mode and privileged exec mode?

• a) Controlling access to the router
• b) Configuring routing tables
• c) Executing different commands with varying levels of access
• d) Analyzing network traffic