CompTIA CompTIA Certifications N10-008 Questions & Answers

• Question 211:

  A network technician is troubleshooting a connection to a web server. The technician is unable to ping the server but is able to verify connectivity to the web service using Telnet. Which of the following protocols is being blocked by the firewall?

  A. UDP

  B. ARP

  C. ICMP

  D. TCP

  Correct Answer: C

• Question 212:

  A network administrator is configuring a firewall to allow for a new cloud-based email server. The company standard is to use SMTP to route email traffic. Which of the following ports, by default, should be reserved for this purpose?

  A. 23

  B. 25

  C. 53

  D. 110

  Correct Answer: B

• Question 213:

  Which of the following demarcation connections would be MOST appropriate to use with a cable modem being installed in a SOHO situation?

  A. RG6

  B. Cat 6

  C. RJ11

  D. Multimode fiber

  Correct Answer: A

• Question 214:

  A technician needs to allow a device to maintain the same IP address lease based on the physical address of a network card. Which of the following should the technician use?

  A. MAC address reservation

  B. Static IP address

  C. Custom DNS server entry

  D. IP address exclusion

  Correct Answer: A

• Question 215:

  A network technician wants to find the shortest path from one node to every other node in the network. Which of the following algorithms will provide the FASTEST convergence time?

  A. A static algorithm

  B. A link-state algorithm

  C. A distance-vector algorithm

  D. A path-vector algorithm

  Correct Answer: B

• Question 216:

  After upgrading to a SOHO router that supports Wi-Fi 6, the user determines throughput has not increased. Which of the following is the MOST likely cause of the issue?

  A. The wireless router is using an incorrect antenna type.

  B. The user's workstation does not support 802.11ax.

  C. The encryption protocol is mismatched.

  D. The network is experiencing interference.

  Correct Answer: B

• Question 217:

  While using a secure conference call connection over a corporate VPN, a user moves from a cellular connection to a hotel wireless network. Although the wireless connection and the VPN show a connected status, no network connectivity is present. Which of the following is the MOST likely cause of this issue?

  A. MAC filtering is configured on the wireless connection.

  B. The VPN and the WLAN connection have an encryption protocol mismatch.

  C. The WLAN is using a captive portal that requires further authentication.

  D. Wireless client isolation is enforced on the WLAN settings.

  Correct Answer: C

• Question 218:

  A network administrator creates a new network, 10.10.0.0/24, on a DHCP server. The administrator wants to ensure that 10.10.0.10-10.10.0.15 are not allocated to other devices. Which of the following features should the administrator configure?

  A. Exclusion

  B. Reservation

  C. Scope

  D. Relay

  Correct Answer: A

• Question 219:

  An on-call network technician receives an automated email alert stating that a power supply on a firewall has just powered down. Which of the following protocols would BEST allow for this level of detailed device monitoring?

  A. TFTP

  B. TLS

  C. SSL

  D. SNMP

  Correct Answer: D

• Question 220:

  A technician is investigating a SAN switch that has a high number of CRC errors. Which of the following is the MOST likely cause of the errors?

  A. Break in the fiber

  B. Bad switch port

  C. Mismatched duplex

  D. Memory errors

  Correct Answer: A

  CRC errors and/or late collisions can be caused by a duplex mismatch. When one site of a link is configured on full-duplex and the other on half-duplex you will see the CRC errors at the interface which is configured on full-duplex. This problem occurs also when one site of a link is configured on auto-duplex and the other fixed (full-duplex).