Network+ Practice Quiz: N10-008 Quiz 21

1. To increase security on your company's internal network, the administrator has disabled as many ports as possible. Now, although you can browse the internet, you're unable to perform secure credit card transactions.

Which port needs to be enabled to allow secure transactions?

• 443
• 69
• 23
• 21

2. Which port does Telnet use?

• 53
• 23
• 25
• 80

3. Which type of address is the IP address 198.162.12.254/24?

• Multicast
• Unicast
• Broadcast
• Private

4. Which of the following can you append to the end of the dig command to run a query for all the records in the zone?

• -ns
• -a
• -axfr
• -mx

5. Which NAT implementation assigns two IP addresses to the public NAT interface, allowing traffic to flow in both directions?

• Dynamic and Static
• Static
• Dynamic
• PAT

6. At which layer of the OSI model do NAT routers operate?

• Layer 7 (Application layer)
• Layer 3 (Network layer)
• Layer 1 (Physical layer)
• Layer 5 (Session layer)

7. You are using a protocol analyzer to capture network traffic. You want to only capture the frames coming from a specific IP address. Which of the following can you use to simplify this process?

• Display filters
• Switch
• Capture filters
• NIC

8. Most equipment is cooled by bringing cold air in the front and ducting the heat out the back. What is the term for where heat is sent?

• Cold aisle
• Back aisle
• Hot aisle
• Front aisle

9. Which of the following is most vulnerable to a brute force attack?

• Password authentication
• Biometric authentication
• Challenge-response token authentication
• Two-factor authentication

10. Which of the following is a text file that a website stores on a client's hard drive to track and record information about the user?

• Digital signature
• Mobile code
• Cookie
• Certificate