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Free CompTIA Network+ N10-009 Practice Test
Prepare for the CompTIA Network+ N10-009 exam with this free practice test. Randomly generated and customizable, this test allows you to choose the number of questions.
- Questions: 15
- Time: 15 minutes (60 seconds per question)
- Included Objectives:Networking ConceptsNetwork ImplementationNetwork OperationsNetwork SecurityNetwork Troubleshooting
A company with operations across remote areas globally needs real-time data sharing and communication amongst its sites. What type of connectivity would best serve this requirement, considering the geographical challenges?
4G LTE Cellular network
Satellite connectivity
RF systems
Dedicated fiber-optic cables
Answer Description
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.
Ask Bash
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How does satellite connectivity work?
What are the advantages and disadvantages of using satellite connectivity?
What are some common applications of satellite connectivity?
A network administrator observes that two departments, which are supposed to operate on separate network segments, are unexpectedly able to interact with each other. Upon inspection, it is found that several devices meant for secure departmental communication are wrongly grouped with general office network traffic. What could be the most probable cause of this configuration error?
Configuration errors in the switch port settings.
A loop in the routing configuration causing traffic misdirection.
Incorrect zone records maintained by the DNS server.
Misconfigurations in the DHCP server settings.
Answer Description
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.
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What are switch port settings?
What is VLAN, and how does it affect network segmentation?
How can I troubleshoot switch port configuration errors?
A network administrator notices that a switch port, which connects to a server, is no longer active and upon checking, finds that the port has been put into an 'error disabled' state. What is the MOST likely cause for this state?
The switch experienced a temperature anomaly exceeding operational thresholds.
The DHCP server has run out of IP addresses to assign to clients.
There was an incorrect cable type used between the server and the switch.
The port security settings have been violated, such as exceeding the maximum number of allowed MAC addresses.
Answer Description
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.
Ask Bash
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
What is port security in networking?
What does 'error disabled' state mean?
How do I configure port security on a switch?
When ensuring physical security of a server room, which type of lock is most effective at limiting access?
Combination locks
Traditional key locks
Biometric locks
Keypad locks
Answer Description
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.
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What are biometric locks and how do they work?
What are the advantages of biometric locks over traditional locks?
What are some potential drawbacks or challenges of using biometric locks?
Your company has implemented a new content filtering policy which includes blocking access to specific harmful websites known for malware distribution. As an IT administrator, you notice that users are unable to connect to reputable news sites that occasionally include user-generated content. What is the most probable explanation for this issue?
Content filtering rules are inadvertently blocking these sites due to their allowance of user-generated content.
The Internet bandwidth has been exceeded for the month leading to a preventive shutdown of high traffic sites.
A Distributed Denial-of-Service (DDoS) attack is currently preventing access to these sites.
The web filtering hardware is malfunctioning and randomly blocking websites.
Answer Description
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.
Ask Bash
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What are content filtering rules and how do they work?
What are user-generated content and its potential risks?
How can the filtering rules be adjusted to prevent blocking reputable sites?
Encrypting data while it is being transmitted over the internet ensures that the data remains confidential if intercepted.
False
True
Answer Description
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.
Ask Bash
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What are common encryption methods used for data transmission?
What is the role of encryption keys in data transmission?
How does data encryption protect against unauthorized access?
A network administrator detects that a Windows workstation is unable to reach other systems within the same segment. Which method should be used to confirm if the workstation's network address correctly correlates to its hardware address?
Checking the complete network configuration with
ifconfig
Use
shutdown /clear /force
to restart the device and wipe any cached network informationExamining the routing table on the router using
show ip route
Viewing the ARP cache with the
arp -a
command
Answer Description
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.
Ask Bash
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What does ARP stand for and how does it work?
What are the differences between ARP and the routing table commands?
Why might a workstation be unable to reach other systems in the same segment?
In a high-security data center, management is reviewing options to enhance the security of the server room entrance. They are seeking a solution that drastically minimizes the risk of unauthorized entry due to duplicated or stolen access credentials. Which locking system should they implement?
Biometric locks
Key locks
Numerical keypad systems
Keycard systems
Electronic keys
Answer Description
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.
Ask Bash
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What are common types of biometric locks?
How do biometric locks compare to keycard systems in terms of security?
What are the potential drawbacks of using biometric locks?
What typically causes an area within a wireless network environment to have a weak signal or no connectivity?
Use of mismatched wireless standards
Placement of the wireless access points too far apart
Incorrect subnet mask configuration
High network traffic
Answer Description
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.
Ask Bash
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What factors can affect the signal strength of a wireless access point?
How can I improve the coverage of my wireless network?
What are wireless standards, and why can mismatched standards cause connectivity issues?
Which metric in a disaster recovery plan is crucial to determine the acceptable downtime for critical systems before significant operational impact occurs?
Recovery Time Objective (RTO)
Mean Time to Repair (MTTR)
Mean Time Between Failures (MTBF)
Recovery Point Objective (RPO)
Answer Description
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).
Ask Bash
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What is Recovery Point Objective (RPO)?
How is Recovery Time Objective (RTO) determined?
What is Mean Time to Repair (MTTR) and how does it differ from RTO?
SSH is exclusively used for remote shell access and file transfers between a client and a server.
True
False
Answer Description
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.
Ask Bash
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
What are some other uses of SSH besides remote shell access and file transfers?
What does port forwarding mean in the context of SSH?
What is the process of tunneling in SSH?
An IT administrator is setting up a web server for a company's internal site where financial reports will be shared. The administrator must ensure encrypted connections for this site. Which protocol and port should be correctly configured on the server to meet this requirement?
FTP on port 21
HTTPS on port 443
HTTP on port 80
SMTP on port 25
Answer Description
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.
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What is HTTPS and why is it important for secure connections?
What is the difference between HTTP and HTTPS?
What roles do SSL and TLS play in HTTPS?
A network administrator needs to ensure that a critical server consistently maintains the same network address from the server responsible for dynamically assigning addresses to avoid disruptions in connectivity. Which of the following methods is the BEST solution to meet this requirement?
Create a reservation for the server's MAC address on the dynamic address assignment server.
Adjust the pool of available addresses to set aside certain addresses.
Conduct a capacity test on the network address assignment abilities of the server.
Manually set a network address on the server within the assignable range.
Answer Description
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.
Ask Bash
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What is a MAC address and why is it important for reservations?
What is DHCP and how does it work?
What potential issues can arise from manually setting IP addresses?
Is the IP address 192.168.1.1 as defined by RFC 1918 designated for public Internet usage?
Yes
No
Answer Description
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.
Ask Bash
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What are RFC 1918 addresses used for?
What does it mean for an IP address to be 'routable'?
Can private IP addresses communicate with the public Internet?
When troubleshooting a network issue, a technician decides to employ a bottom-to-top approach using the OSI model. Which layer would they start their troubleshooting from?
Transport layer
Physical layer
Network layer
Application layer
Answer Description
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.
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What is the OSI model?
What does the Physical layer include?
Why is the bottom-to-top approach effective in troubleshooting?
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