Question # 1
| Which of the following requires network devices to be managed using a different set of IP addresses? | | A. Console | | B. Split tunnel | | C. Jump box | | D. Out of band |
D. Out of band
Out-of-band (OOB) management refers to using a dedicated management network that is physically separate from the regular data network. This management network uses a different set of IP addresses to ensure that management traffic is isolated from user data traffic, providing a secure way to manage network devices even if the main network is down or compromised. References: CompTIA Network+ study materials.
Question # 2
| A network administrator notices interference with industrial equipment in the 2.4GHz range. Which of the following technologies would most likely mitigate this issue? (Select two). | | A. Mesh network | | B. 5GHz frequency | | C. Omnidirectional antenna | | D. Non-overlapping channel | | E. Captive portal |
B. 5GHz frequency
Question # 3
| Which of the following describes the best reason for using BGP? | | A. Preventing a loop within a LAN | | B. Improving reconvergence times | | C. Exchanging router updates with a different ISP | | D. Sharing routes with a Layer 3 switch |
C. Exchanging router updates with a different ISP
Explanation:
BGP (Border Gateway Protocol) is used for routing data between different ISPs, making it essential for the functioning of the internet. Its primary use is for exchanging routing information between autonomous systems, especially different ISPs. Preventing loops within a LAN is handled by protocols like Spanning Tree Protocol (STP), while improving reconvergence times and sharing routes with a Layer 3 switch are functions of other protocols or internal mechanisms.
[Reference:, The CompTIA Network+ training emphasizes BGP’s role in the exchange of routing information across different ISPs and autonomous systems., , ]
Question # 4
| A customer recently moved into a new office and notices that some wall plates are not working and are not properly labeled Which of the following tools would be best to identify the proper wiring in the IDF? | | A. Toner and probe | | B. Cable tester | | C. Visual fault locator | | D. Network tap |
A. Toner and probe
Explanation:
A toner and probe tool, also known as a tone generator and probe, is used to trace and identify individual cables within a bundle or to locate the termination points of cables in wiring closets and patch panels. It generates a tone that can be picked up by the probe, helping technicians quickly and accurately identify and label wall plates and wiring. This is the best tool for identifying proper wiring in the Intermediate Distribution Frame (IDF). References: CompTIA Network+ Exam Objectives and official study guides.
Question # 5
| Which of the following is most commonly associated with many systems sharing one IP address in the public IP-addressing space?
| | A. PAT | | B. NAT | | C. VIP | | D. NAT64 |
A. PAT
Explanation:
Explanation: Port Address Translation (PAT) allows multiple internal devices to share a single public IP address by assigning each device a unique port number. This is the most common method used in environments where many systems need internet access but there are limited public IP addresses.
Question # 6
Which of the following attacks can cause users who are
attempting to access a company website to be directed to an entirely different
website? | | A. DNS poisoning | | B. Denial-of-service | | C. Social engineering | | D. ARP spoofing |
A. DNS poisoning
Network segmentation involves dividing a network into smaller segments or subnets. This is particularly important when integrating OT (Operational Technology) devices to ensure that these devices are isolated from other parts of the network. Segmentation helps protect the OT devices from potential threats and minimizes the impact of any security incidents. It also helps manage traffic and improves overall network performance. References: CompTIA Network+ study materials.
Question # 7
| Which of the following attacks utilizes a network packet that contains multiple network tags? | | A. MAC flooding | | B. VLAN hopping | | C. DNS spoofing | | D. ARP poisoning |
B. VLAN hopping
Explanation:
VLAN hopping is an attack where an attacker crafts packets with multiple VLAN tags, allowing them to traverse VLAN boundaries improperly. This can result in gaining unauthorized access to network segments that are supposed to be isolated. The other options do not involve the use of multiple network tags. MAC flooding aims to overwhelm a switch’s MAC address table, DNS spoofing involves forging DNS responses, and ARP poisoning involves sending fake ARP messages.
[Reference:, According to the CompTIA Network+ course materials, VLAN hopping exploits the tagging mechanism in network packets to gain unauthorized access., , ]
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