N10-009 Free Practice Test

- (Exam Topic 1)
A workstation is configured with the following network details:

Software on the workstation needs to send a query to the local subnet broadcast address. To which of the following addresses should the software be configured to send the query?

1. A. 10.1.2.0
2. B. 10.1.2.1
3. C. 10.1.2.23
4. D. 10.1.2.255
5. E. 10.1.2.31

Correct Answer: D
The software on the workstation should be configured to send the query to 10.1.2.255, which is the local subnet broadcast address. A broadcast address is a special address that allows a device to send a message to all devices on the same subnet. It is usually derived by setting all the host bits to 1 in the network address. In this case, the network address is 10.1.2.0/27, which has 27 network bits and 5 host bits. By setting all the host bits to 1, we get 10.1.2.31 as the broadcast address in decimal notation, or 10.1.2.255 in dotted decimal notation. References: https://www.cisco.com/c/en/us/support/docs/ip/routing-information-protocol-rip/13788-3.html

- (Exam Topic 1)
Which of the following devices would be used to manage a corporate WLAN?

1. A. A wireless NAS
2. B. A wireless bridge
3. C. A wireless router
4. D. A wireless controller

Correct Answer: D
A wireless controller is used to manage a corporate WLAN, providing centralized management and configuration of access points. References: CompTIA Network+ Certification Study Guide, Chapter 8: Wireless Networks.

- (Exam Topic 3)
A network administrator is adding a new switch to the network. Which of the following network hardening techniques would be BEST to use once the switch is in production?

1. A. Disable unneeded ports
2. B. Disable SSH service
3. C. Disable MAC filtering
4. D. Disable port security

Correct Answer: A

- (Exam Topic 3)
A new student is given credentials to log on to the campus Wi-Fi. The student stores the password in a laptop and is able to connect; however, the student is not able to connect with a phone when only a short distance from the laptop. Given the following information:

Which of the following is MOST likely causing this connection failure?

1. A. Transmission speed
2. B. Incorrect passphrase
3. C. Channel overlap
4. D. Antenna cable attenuation/signal loss

Correct Answer: B

- (Exam Topic 2)
A firewall administrator is implementing a rule that directs HTTP traffic to an internal server listening on a non-standard socket Which of the following types of rules is the administrator implementing?

1. A. NAT
2. B. PAT
3. C. STP
4. D. SNAT
5. E. ARP

Correct Answer: B
The firewall administrator is implementing a PAT (Port Address Translation) rule that directs HTTP traffic to an internal server listening on a non-standard socket. PAT is a type of NAT (Network Address Translation) that allows multiple devices to share a single public IP address by using different port numbers. PAT can also be used to redirect traffic from one port to another port on the same or different IP address. This can be useful for security or load balancing purposes. For example, a firewall administrator can configure a PAT rule that redirects HTTP traffic (port 80) from the public IP address of the firewall to an internal server that listens on a non-standard port (such as 8080) on its private IP address. References: https://www.cisco.com/c/en/us/support/docs/ip/network-address-translation-nat/13772-12.html