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Which of the following connectors provides console access to a switch?
A. ST
B. RJ45
C. BNC
D. SFP
Explanation:
Console Access:
Purpose:
Console access to a switch allows administrators to configure and manage the device directly. This is typically done using a terminal emulator program on a computer.
RJ45 Connector:
Common Use: The RJ45 connector is widely used for Ethernet cables and also for console connections to network devices like switches and routers.
Console Cables: Console cables often have an RJ45 connector on one end (for the switch) and a DB9 serial connector on the other end (for the computer).
Comparison with Other Connectors:
ST (Straight Tip): A fiber optic connector used for networking, not for console access.
BNC (Bayonet Neill-Concelman): A connector used for coaxial cable, typically in older network setups and not for console access.
SFP (Small Form-factor Pluggable): A modular transceiver used for network interfaces, not for console access.
Practical Application:
Connection Process: Connect the RJ45 end of the console cable to the console port of the switch. Connect the DB9 end (or USB via adapter) to the computer. Use a terminal emulator (e.g., PuTTY, Tera Term) to access the switch’s command-line interface (CLI).
References:
CompTIA Network+ study materials on network devices and connectors.
A network administrator wants users to be able to authenticate to the corporate network using a port-based authentication framework when accessing both wired and wireless devices. Which of the following is the best security feature to accomplish this task?
A. 802.1X
B. Access control list
C. Port security
D. MAC filtering
Explanation:
802.1X is a port-based network access control (PNAC) protocol that provides an authentication mechanism to devices wishing to connect to a LAN or WLAN. It is widely used for secure network access, ensuring that only authenticated devices can access the network, whether they are connecting via wired or wireless means. 802.1X works in conjunction with an authentication server, such as RADIUS, to validate the credentials of devices trying to connect.
References:
CompTIA Network+ study materials.
Which of the following panels would be best to facilitate a central termination point for all network cables on the floor of a company building?
A. Patch
B. UPS
C. MDF
D. Rack
Explanation:
[Reference: CompTIA Network+ Certification Exam Objectives - Network Installation section., ]
A user connects to a corporate VPN via a web browser and is able to use TLS to access the internal financial system to input a time card. Which of the following best describes how the VPN is being used?
A. Clientless
B. Client-to-site
C. Full tunnel
D. Site-to-site
Explanation:
[Reference: CompTIA Network+ Certification Exam Objectives - Remote Access Methods section., ]
Which of the following should a network administrator configure when adding OT devices to an organization’s architecture?
A. Honeynet
B. Data-at-rest encryption
C. Time-based authentication
D. Network segmentation
Explanation:
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.
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