Free CompTIA Network+ N10-009 Practice Test

Satellite connectivity is specifically designed to provide internet coverage over vast and remote areas where terrestrial internet connections (like fiber, DSL) are not possible or economically feasible. This makes it the best option for providing reliable, wide-reaching network coverage required for real-time data sharing and communication across global, remote operations. High fees make it less appealing for low-cost solutions, while coverage limitation affects terrestrial and Cellular options in remote areas. Radio Frequency (RF) systems, though useful in specific conditions, primarily support local scale deployments and can face interference issues.

The correct answer specifies the likely problem to be associated with switch port configurations, which directly manage how devices are grouped into logical network segments. Errors in these configurations can mistakenly direct traffic to incorrect segments, leading to the observed issue. Other answers relate to issues that typically affect other areas such as IP addressing and network routing, and not directly influencing logical traffic segregation at the switch level.

The correct reason why the port would go into an 'error disabled' state in this scenario is usually due to a violation of port security settings, such as exceeding the maximum allowed MAC addresses. Port security limits the number of valid MAC addresses allowed on a port to prevent unauthorized access. If this number is exceeded, the default action for many switches is to disable the port to prevent possible security breaches. Incorrect cable types or DHCP exhaustion typically do not directly cause ports to be error disabled, and temperature anomalies are more related to hardware malfunctions rather than configurations that trigger port security.

Biometric locks provide the most effective security measure for limiting access to sensitive areas like a server room because they require unique individual characteristics such as fingerprints or iris scans that cannot be easily duplicated or shared, unlike keys or access cards. Traditional key locks are less secure as keys can be copied or lost. Keypad locks, though more secure than traditional key locks, still suffer from the risk of shared or guessed access codes. Combination locks carry a similar risk if the combination is shared or becomes known to unauthorized individuals.

The most likely explanation is that the content filtering rules are overly broad, blocking any site that includes user-generated content due to potential risks. News sites that allow comments or guest posts can be inadvertently blocked by rules targeting harmful or unmoderated content sources. This highlights the need to carefully balance security concerns with access needs, possibly involving more granular rules or whitelisting known-safe sources. Incorrect answers suggest inadequate hardware or major malicious attacks, which are less likely given the contextual clues of targeted, legitimate site access issues.

The statement is correct as data encryption during transit protects it from being readable by unauthorized parties, ensuring confidentiality. This is a fundamental principle of data security, particularly important when sensitive information is sent over less secure networks like the internet. Unauthorized interception, while possible, will yield encrypted data, which is unreadable without the decryption key.

The ARP cache shows the mapping between IP addresses and MAC addresses, making it the correct method to verify if a workstation's IP address correctly correlates to its hardware address. The command arp -a specifically displays these mappings.

Using shutdown /clear /force would restart the device but doesn't provide the IP-to-MAC correlation.

Examining the routing table with show ip route only shows paths between networks, not the local IP-to-MAC relationships.

ifconfig (or ipconfig on Windows) only shows local interface settings, but not the IP-to-MAC mappings needed to verify the ARP relationship.

Biometric locks are the optimal choice as they utilize unique biological traits like fingerprints or retinal scans. This approach significantly lowers the risk of unauthorized access because it is challenging to duplicate these biological markers, unlike other methods. Keycard systems, while common, are vulnerable to cloning. Numerical keypad systems can be compromised if someone discovers the code. Key locks can be picked or duplicated, and electronic keys, similar to RFID, can also be copied or lost, thereby compromising security.

Insufficient wireless coverage occurs when the wireless access point or router does not have a sufficient signal range to cover the intended area. This can be due to physical distance, obstacles that block or degrade the signal, or inadequate signal strength settings on the wireless device. Answer 'Placement of the wireless access points too far apart' directly pertains to the issue of the physical distribution of signal, which is a common and straightforward cause of insufficient coverage. The other answers, while plausible, do not specifically address the fundamental issue of signal distribution itself.

The Recovery Time Objective (RTO) is specifically concerned with the maximum allowable downtime after a disruption, which helps organizations in strategic planning to ensure critical systems are quickly restored to minimize operational impact. It does not measure the amount of data at risk (covered by RPO), nor the general operational time between system failures (covered by MTBF), or the time needed to repair a system (covered by MTTR).

While SSH is commonly used for secure shell access and file transfers, saying it is 'exclusively' used for these purposes is incorrect. SSH can also be used for other purposes such as port forwarding, tunneling, and as part of other security implementations in network environments. The notion of exclusive use in the context of networking protocols is seldom accurate due to the versatility and broad application of these protocols.

HTTPS is the secure version of HTTP, providing encryption and secure identification of the server. It typically runs on port 443 to ensure data sent and received is encrypted, which is essential for handling sensitive information such as financial reports.

Creating a reservation for the server's MAC address on the network address allocation server is the best solution because it allows this server to assign the same network address to the critical server every time it connects to the network. This approach ensures that even if the server reboots or its allocated address lease expires, the server will always receive the same network address, maintaining consistent access and reducing configuration errors. Setting a manual network address could lead to address conflicts if not carefully managed outside the assignable range. Adjusting the address pool and stress testing the allocation capabilities do not directly ensure that a specific address is consistently assigned to a particular server.

RFC 1918 specifies ranges of IP addresses for private use, intended to be utilized inside private networks and not routable on the public Internet. Thus, IP addresses like 192.168.1.1 are designed strictly for private use, which means using them on the public Internet would be inappropriate and technically impractical as they cannot be routed.

When using the bottom-to-top approach in the OSI model for troubleshooting, the technician starts at the Physical layer. This layer deals with the physical components of the network such as cables and hardware, which are often the first places to check for connectivity issues or physical damage before exploring higher-level configuration or software issues in other layers.