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| Section | Objectives |
|---|---|
| Networking Concepts | - OSI model and TCP/IP model - IPv4 and IPv6 addressing - Network topologies and types (LAN, WAN, WLAN) - Ports, protocols, and services |
| Network Security | - Network hardening techniques - Access control and authentication - Security concepts and threats |
| Network Troubleshooting | - Common network issues - Troubleshooting methodology - Tools and diagnostic techniques |
| Network Operations | - Monitoring and optimization - Business continuity and disaster recovery - Network documentation and diagrams |
| Network Implementation | - Switching technologies - Routing technologies - Wireless networking - Network storage and virtualization |
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NEW QUESTION # 302
Which of the following protocol ports should be used to securely transfer a file?
Answer: C
Explanation:
Port 22 is used for SFTP (Secure File Transfer Protocol) and SCP (Secure Copy Protocol), which encrypt file transfers using SSH (Secure Shell). This ensures data is transmitted securely over the network.
*Why not the other options?
*Port 69 (B) - TFTP (Trivial File Transfer Protocol): Transfers files but is not secure (no encryption).
*Port 80 (C) - HTTP: Used for web traffic, not for file transfer.
*Port 3389 (D) - RDP (Remote Desktop Protocol): Used for remote desktop access, not file transfer.
NEW QUESTION # 303
Which of the following protocols is used to send networking status messages between clients and servers?
Answer: B
Explanation:
The correct answer is SNMP (Simple Network Management Protocol) because it is specifically designed to collect and transmit network management and status information between managed devices and management systems. According to CompTIA Network+ (N10-009) objectives, SNMP is used for monitoring and managing network devices such as routers, switches, servers, and printers.
SNMP operates using a manager-agent model. The SNMP manager (such as a network monitoring server) communicates with SNMP agents installed on network devices. Agents send traps and inform messages, which are unsolicited status alerts indicating events such as device failures, high CPU usage, or link outages.
The manager can also poll agents to retrieve performance metrics and configuration details stored in the Management Information Base (MIB).
SSH (Option A) is used for secure remote administration. DHCP (Option B) dynamically assigns IP addresses. NTP (Option C) synchronizes time between devices. None of these protocols are designed for network status monitoring and alert messaging.
Therefore, SNMP is the correct protocol for sending networking status messages between devices and management systems.
Bottom of Form
NEW QUESTION # 304
A user in the finance department reports that they cannot access the internet. Other finance department users are not having issues.
A network administrator runs a route printcommand on the user's machine:
Which of the following is most likely the root cause of the issue?
Answer: C
Explanation:
There is no 0.0.0.0/0 entry in the routing table, so the workstation has no default route for Internet-bound traffic. Adding or correcting the default gateway route restores external connectivity.
NEW QUESTION # 305
A network engineer needs to change, update, and control APs remotely, with real-time visibility over HTTPS.
Which of the following will best allow these actions?
Answer: D
Explanation:
API gateways offer programmable control and real-time communication, commonly over HTTPS, which allows administrators to update and manage devices like access points remotely and efficiently.
From Andrew Ramdayal's guide:
"APIs enable automation and real-time interaction with network devices via secure interfaces, often using HTTPS for encrypted communication and control."
NEW QUESTION # 306
A user recently moved a workstation to a different part of the office. The user is able to access the internet and print but is unable to access server resources. Which of the following is the most likely cause of the issue?
Answer: B
Explanation:
If a workstation can access the internet and printers (likely in another VLAN) but not internal servers, the port was likely placed into the wrong VLAN after the move. VLAN assignment controls Layer 2 segmentation, restricting access to resources on different VLANs.
A . A wrong default gateway would prevent internet access.
C . An error-disabled port would block all connectivity.
D . A duplicate IP would cause general network issues, not just missing server access.
Reference (CompTIA Network+ N10-009):
NEW QUESTION # 307
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