Network+ Practice Quiz: N10-008 Quiz 23

1. You're configuring a network firewall to allow SMTP outbound email traffic and POP3 inbound email traffic. Which of the following TCP/IP ports should you open on the firewall? (Choose two)

• 110
• 25
• 21
• 143
• 443

2. Which protocol and port number does TFTP use?

• UDP 20 and 21
• TCP 20 and 21
• TCP 67
• UDP 67
• TCP 69
• UDP 69

3. You manage a subnet that uses the subnet address 198.162.1.0/23. Which of the following BEST describes how addressing is configured for this subnet?

• Subnetting
• Classful
• Supernetting
• Private

4. You want to implement a protocol on your network that allows computers to find a host's IP address from a logical name. Which protocol should you implement?

• DNS
• Telnet
• ARP
• DHCP

5. You have a network configured to use the OSPF routing protocol. Which of the following describes the state when all OSPF routers have learned about all other routes on a network?

• Link state
• Distance vector
• VLSM
• Classful
• Convergence

6. Which of the following routing protocols is a hybrid that uses a composite number for its metric based on bandwidth and delay?

• BGP
• EIGRP
• RIP
• OSPF

7. Which of the following is the term for when a system is unable to keep up with the demands placed on it?

• Jitter
• Latency
• Bottleneck
• Hard fault

8. Which of the following is the term for a calculation of how often bits are damaged in transit due to electromagnetic interference?

• Bottleneck
• Bandwidth
• Latency
• Error rate

9. Which of the following measures are you MOST likely to implement to protect your system from a worm or Trojan horse?

• Antivirus software
• IPsec
• Firewall
• Password policy

10. A group of zombie computers have been set up to collect personal information. Which type of malware do the zombie computers represent?

• Logic bomb
• Trojan horse
• Spyware
• Botnet