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A network engineer needs to deploy an access point at a remote office so that it will not communicate back to the wireless LAN controller. Which of the following deployment methods must the engineer use to accomplish this task?
Autonomous access points operate independently without needing to communicate with a central wireless LAN controller. This is ideal for remote deployments.
From Andrew Ramdayal's guide:
''Autonomous access points are stand-alone devices that manage their own configurations and operations. They do not require a WLC and are ideal for small or remote office deployments.''
A junior network administrator is auditing the company network and notices incrementing input errors on a long-range microwave interface. Which of the following is the most likely reason for the errors?
A misaligned parabolic antenna can cause a significant increase in input errors because the signal is not properly focused or directed towards the receiving antenna, resulting in poor reception and data corruption. The document confirms:
''Misalignment of parabolic microwave antennas can lead to weak or incorrect signal reception, causing an increase in input errors and connectivity issues on the link.''
A network engineer needs to order cabling to connect two buildings within the same city. Which of the following media types should the network engineer use?
Single-mode fiber is best suited for long-distance communication, often exceeding 10 km (6.2 miles). It's immune to EMI and offers high bandwidth --- making it the ideal choice for connecting buildings across a city.
Coaxial (A) and Twinaxial (B) are used for shorter distances and specific use cases (e.g., storage or legacy systems).
Cat 5 (D) is limited to 100 meters and is not suitable for city-level interconnects.
For long-distance, high-speed, and reliable communication between buildings, Single-mode fiber is the professional choice.
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A network administrator is implementing security zones for each department. Which of the following should the administrator use to accomplish this task?
Understanding ACLs:
Access Control Lists (ACLs): A set of rules used to control network traffic and restrict access to network resources by filtering packets based on IP addresses, protocols, or ports.
Implementing Security Zones:
Defining Zones: ACLs can be used to create security zones by applying specific rules to different departments, ensuring that only authorized traffic is allowed between these zones.
Control Traffic: ACLs control inbound and outbound traffic at network boundaries, enforcing security policies and preventing unauthorized access.
Comparison with Other Options:
Port Security: Limits the number of devices that can connect to a switch port, preventing MAC address flooding attacks, but not used for defining security zones.
Content Filtering: Blocks or allows access to specific content based on predefined policies, typically used for web filtering rather than network segmentation.
NAC (Network Access Control): Controls access to the network based on the security posture of devices but does not define security zones.
Implementation Steps:
Define ACL rules based on the requirements of each department.
Apply these rules to the appropriate network interfaces or firewall policies to segment the network into security zones.
CompTIA Network+ study materials on network security and access control methods.
A technician is troubleshooting a user's laptop that is unable to connect to a corporate server. The technician thinks the issue pertains to routing. Which of the following commands should the technician use to identify the issue?
The tracert (Traceroute) command is used to determine the path packets take from the source to the destination. It helps in identifying routing issues by showing each hop the packets pass through, along with the time taken for each hop. This command can pinpoint where the connection is failing or experiencing delays, making it an essential tool for troubleshooting routing issues.Reference: CompTIA Network+ study materials and common network troubleshooting commands.
