Question 1

The security department is looking to install a new IP-based camera. Plugging the camera into the available Ethernet jack does not power on the camera. Upon further investigation, the cable tests fine, and it does provide power to a VoIP phone. Which of the following is MOST likely causing the issue?
A) The brown pair UTP has a short.
B) The camera requires 802.3at power.
C) The camera requires Cat 7 cabling.
D) The switchport has PoE disabled.

Accepted Answer

The camera likely requires 802.3at power, which is a higher power standard than what might be provided by the switch for the VoIP phone.

Question 2

A network engineer is deploying a new PBX for a customer. Although all new phones will be IP-based, the office will still use a few POTS-based phones and a fax line. Which of the following will be needed to connect the fax line?
A) RJ11
B) RJ45
C) DB-9
D) F-type

Accepted Answer

RJ11 is the standard connector used for POTS (Plain Old Telephone Service) lines, which includes traditional phone lines and fax machines.

Question 3

A network administrator migrated the data for the corporate email service from one provider to another. All DNS records were successfully changed and verified. However, many hours later, users are still receiving new emails on the old provider's server. Which of the following should the administrator perform NEXT to troubleshoot the issue?
A) Add a secondary MX server to the DNS records.
B) Remove old SPF records from the DNS host.
C) Create a DMARC record that includes the old server.
D) Check the TTL value on the MX records.

Accepted Answer

The answer of A network administrator migrated the data for...

Question 4

Which of the following technologies can be implemented on network devices to increase throughput in network storage systems?
A) Trunking
B) Frame Relay
C) Jumbo frames
D) InfiniBand

Accepted Answer

The answer of Which of the following technologies can be...

Question 5

A technician is helping to secure a wireless network at a home office and is looking to prevent unauthorized devices from connecting to the network. Which of the following would be BEST for the technician to do? (Choose two.)
A) Configure MAC filtering.
B) Configure guest network isolation.
C) Enable plug and play.
D) Disable the SSID broadcast.
E) Configure a captive portal.
F) Disable unneeded ports.

Accepted Answer

MAC filtering and disabling the SSID broadcast are both effective methods for preventing unauthorized devices from connecting to a wireless network. MAC filtering allows the network administrator to specify which devices are allowed to connect to the network based on their MAC addresses. Disabling the SSID broadcast prevents the network from being advertised, making it more difficult for unauthorized devices to find and connect to the network.

Question 6

A network manager is reviewing recent changes after learning the network health metrics are no longer being protected. The manager discovers the ACL has been updated to the following:  Which of the following lines in the ACL points to the issue?
A) Line 1
B) Line 2
C) Line 3
D) Line 4
E) Line 5

Accepted Answer

The answer of A network manager is reviewing recent changes...

Question 7

An administrator recently implemented new SOHO routers for a company's teleworking employees. Before deploying the routers, the administrator changed the default credentials and disabled unnecessary services. Within a few days of deployment, hackers gained access to the routers. Which of the following is the MOST important thing the administrator forgot to do?
A) Disable unused physical router ports.
B) Generate new encryption keys.
C) Upgrade the router firmware.
D) Create a database of file hashes on the router.

Accepted Answer

The answer of An administrator recently implemented new SOHO routers...

Question 8

A network technician is attempting to resolve an issue for two users. The users unplugged and moved their laptops to a different cubicle to work together. The NIC LED is lit on both laptops, but the users are not able to access the network resources. Which of the following is MOST likely preventing access?
A) Port security
B) Auto-MDIX
C) BPDU guard
D) DHCP snooping

Accepted Answer

Port security is likely preventing access because it can restrict a switch port to a specific MAC address or number of MAC addresses. When the laptops were moved, their MAC addresses may not match the allowed addresses for the new ports, causing network access issues.

Question 9

Which of the following is the LARGEST MTU for a standard Ethernet frame?
A) 1452
B) 1492
C) 1500
D) 2304

Accepted Answer

The standard Maximum Transmission Unit (MTU) for Ethernet frames is 1500 bytes.

Exam 10: CompTIA Network+

A network engineer is deploying a new PBX for a customer. Although all new phones will be IP-based, the office will still use a few POTS-based phones and a fax line. Which of the following will be needed to connect the fax line?

Which of the following technologies can be implemented on network devices to increase throughput in network storage systems?

A technician is helping to secure a wireless network at a home office and is looking to prevent unauthorized devices from connecting to the network. Which of the following would be BEST for the technician to do? (Choose two.)

A network manager is reviewing recent changes after learning the network health metrics are no longer being protected. The manager discovers the ACL has been updated to the following: Which of the following lines in the ACL points to the issue?

Which of the following is the LARGEST MTU for a standard Ethernet frame?