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| Section | Objectives |
|---|---|
| Network Implementation | - Wireless networking - Network storage and virtualization - Routing technologies - Switching technologies |
| Network Troubleshooting | - Troubleshooting methodology - Common network issues - Tools and diagnostic techniques |
| Network Security | - Security concepts and threats - Access control and authentication - Network hardening techniques |
| Network Operations | - Network documentation and diagrams - Business continuity and disaster recovery - Monitoring and optimization |
| Networking Concepts | - IPv4 and IPv6 addressing - Ports, protocols, and services - Network topologies and types (LAN, WAN, WLAN) - OSI model and TCP/IP model |
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NEW QUESTION # 752
A network technician needs to securely transfer files remotely. Which of the following ports should the technician use?
Answer: B
Explanation:
Port 22 is used by Secure Shell, which provides encrypted remote access and secure file transfer capabilities, ensuring data is protected during transmission.
NEW QUESTION # 753
A network administrator is expanding a network and wants to ensure no unauthorized redundant links are present. Which of the following should the administrator use to identify and block redundant links?
Answer: A
NEW QUESTION # 754
A network administrator needs to divide a Class B network into four equal subnets, each with a host range of 1,000 hosts. Which of the following subnet masks should the administrator use?
Answer: A
Explanation:
A 255.255.252.0 subnet mask provides 1,022 usable host addresses per subnet, which supports the required 1,000 hosts while dividing the Class B address space into appropriately sized equal subnets.
NEW QUESTION # 755
A company is hosting a secure that requires all connections to the server to be encrypted. A junior administrator needs to harded the web server. The following ports on the web server. The following ports on the web server are open:
Which of the following ports should be disabled?
Answer: C
Explanation:
For a web server that requires all connections to be encrypted, port 80 (HTTP) should be disabled. Port 80 is used for unencrypted web traffic, whereas port 443 is used for HTTPS, which provides encrypted communication.
* Port 80 (HTTP): This port is used for unsecured web traffic. Disabling this port ensures that all web traffic must use HTTPS, which encrypts the data in transit.
* Port 443 (HTTPS): This port is used for secure web traffic via SSL/TLS encryption. Keeping this port open ensures that secure connections can be made to the web server.
* Other Ports:
* Port 22: Used for SSH, providing secure remote access and file transfers.
* Port 587: Used for secure email submission (SMTP) with encryption.
Network References:
* CompTIA Network+ N10-007 Official Certification Guide: Discusses the roles and security implications of various ports and protocols.
* Cisco Networking Academy: Provides training on secure web server configuration and port management.
* Network+ Certification All-in-One Exam Guide: Covers port security and best practices for securing web servers.
NEW QUESTION # 756
Which of the following physical installation factors is the most important when a network switch is installed in a sealed enclosure?
Answer: A
Explanation:
Switches in sealed enclosures are at risk of overheating because airflow is restricted. The temperature factor is critical since heat buildup can damage components, shorten device lifespan, and cause outages. Proper cooling or ventilation must be ensured.
A). Fire suppression is important for data centers but not the primary concern in a sealed box.
B). Power budget applies to PoE allocations, not environmental safety.
D). Humidity matters, but overheating is far more immediate in sealed environments.
References (CompTIA Network+ N10-009):
Domain: Network Infrastructure - Environmental considerations, switch installation, temperature control.
NEW QUESTION # 757
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