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| Section | Weight | Objectives |
|---|---|---|
| Infrastructure | 20% | - Routing concepts and default gateway - Network device ports and status indicators - Switching concepts and VLANs - Wireless access points and SSIDs |
| Addressing and Subnet Formats | 20% | - IPv6 addressing and prefixes - IPv4 addressing and subnetting - Public vs private IP and NAT - Subnet mask and CIDR notation |
| Diagnosing Problems | 15% | - Packet capture and analysis basics - Remote access methods (SSH, RDP, console) - Troubleshooting methodology - Command-line utilities (ping, traceroute, nslookup) |
| Endpoints and Media Types | 15% | - Wired, wireless, and cellular technologies - Network cables and connectors - Endpoint devices and operating systems - Connectivity verification tools |
| Standards and Concepts | 20% | - OSI and TCP/IP models - Bandwidth, throughput, and latency - Common network protocols - Network topologies and types |
| Security | 10% | - Wireless security standards (WPA2/WPA3) - Common threats and vulnerabilities - Firewall and access control principles - CIA triad and AAA model |
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NEW QUESTION # 85
A Cisco PoE switch is shown in the following image.
Which type of port will provide both data connectivity and power to an IP phone?
Answer: C
Explanation:
In the provided image of the Cisco PoE switch, the ports identified with number 6 are the standard RJ-45 Ethernet ports typically found on switches that provide both data connectivity and Power over Ethernet (PoE). PoE ports are designed to supply power to devices such as IP phones, wireless access points, and other PoE-enabled devices directly through the Ethernet cable.
Ports:
* 2: Console port (for management and configuration)
* 3 and 4: Specific function ports (often for management)
* 6: RJ-45 Ethernet ports (capable of providing PoE)
* 7: SFP ports (for fiber connections, typically do not provide PoE) Thus, the correct answer is C. Ports identified with number 6.
Reference: =
* Cisco Catalyst 2960-L Series Switches Data Sheet
* Cisco PoE Overview
NEW QUESTION # 86
Which protocol allows you to securely upload files to another computer on the internet?
Answer: C
Explanation:
SFTP, or Secure File Transfer Protocol, is a protocol that allows for secure file transfer capabilities between networked hosts. It is a secure extension of the File Transfer Protocol (FTP). SFTP encrypts both commands and data, preventing passwords and sensitive information from being transmitted openly over the network. It is typically used for secure file transfers over the internet and is built on the Secure Shell (SSH) protocol1.
References :=
*What Is SFTP? (Secure File Transfer Protocol)
*How to Use SFTP to Safely Transfer Files: A Step-by-Step Guide
*Secure File Transfers: Best Practices, Protocols And Tools
The Secure File Transfer Protocol (SFTP) is a secure version of the File Transfer Protocol (FTP) that uses SSH (Secure Shell) to encrypt all commands and data. This ensures that sensitive information, such as usernames, passwords, and files being transferred, are securely transmitted over the network.
*ICMP (Internet Control Message Protocol) is used for network diagnostics and is not designed for file transfer.
*NTP (Network Time Protocol) is used to synchronize clocks between computer systems and is not related to file transfer.
*HTTP (HyperText Transfer Protocol) is used for transmitting web pages over the internet and does not inherently provide secure file transfer capabilities.
Thus, the correct protocol that allows secure uploading of files to another computer on the internet is SFTP.
References :=
*Cisco Learning Network
*SFTP Overview (Cisco)
NEW QUESTION # 87
Which wireless security option uses a pre-shared key to authenticate clients?
Answer: D
Explanation:
WPA2-Personal, also known as WPA2-PSK (Pre-Shared Key), is the wireless security option that uses a pre-shared key to authenticate clients. This method is designed for home and small office networks and doesn't require an authentication server. Instead, every user on the network uses the same key or passphrase to connect1.
Reference: =
* What is a Wi-Fi Protected Access Pre-Shared Key (WPA-PSK)?
* Exploring WPA-PSK and WiFi Security
* WPA2-Personal: This wireless security option uses a pre-shared key (PSK) for authentication. Each client that connects to the network must use this key to gain access. It is designed for home and small office networks where simplicity and ease of use are important.
* WPA2-Enterprise: Unlike WPA2-Personal, WPA2-Enterprise uses 802.1x authentication with an authentication server (such as RADIUS) and does not rely on a pre-shared key.
* 802.1x: This is a network access control protocol for LANs, particularly wireless LANs. It provides an authentication mechanism to devices wishing to attach to a LAN or WLAN.
* 802.1q: This is a networking standard that supports VLAN tagging on Ethernet networks and is not related to wireless security.
Reference:
* Cisco Documentation on WPA2 Security: Cisco WPA2
* Understanding Wireless Security: Wireless Security Guide
NEW QUESTION # 88
Drag and Drop Question
Move the CIA security principles from the list on the left to its example on the right. You may use each security principle once, more than once, or not at all.
Note: You will receive partial credit for each correct selection.
Answer:
Explanation:
Explanation:
Encrypting a sensitive email protects the content from unauthorized disclosure, which supports confidentiality. A digital signature helps confirm the message has not been altered and supports trust in the data, which supports integrity. Configuring redundant web servers helps keep services accessible even during failures, which supports availability.
NEW QUESTION # 89
A user reports that a company website is not available. The help desk technician issues a tracert command to determine if the server hosting the website is reachable over the network.
The output of the command is shown as follows:
What can you tell from the command output?
Answer: B
Explanation:
The tracert command output shows the path taken to reach the destination IP address, 192.168.1.10.
The command output indicates:
* Hops 1 and 2 are successfully reached.
* Hop 3 times out, meaning the router at hop 3 did not respond to the tracert request.
However, this does not necessarily indicate a problem with forwarding packets, as some routers may be configured to block or not respond to ICMP requests.
* Hops 4 and 5 are successfully reached, with hop 5 being the destination IP 192.168.1.10, indicating that the server is reachable.
Thus, the correct answer is C. The server with the address 192.168.1.10 is reachable over the network.
Reference: =
* Cisco Traceroute Command
* Understanding Traceroute
The tracert command output indicates that the server with the address 192.168.1.10 is reachable over the network. The asterisk (*) at hop 3 suggests that the probe sent to that hop did not return a response, which could be due to a variety of reasons such as a firewall blocking ICMP packets or the router at that hop being configured not to respond to ICMP requests. However, since the subsequent hops (4 and 5) are showing response times, it means that the packets are indeed getting through and the server is reachable12.
Reference: =
* How to Use Traceroute Command to Read Its Results
* How to Use the Tracert Command in Windows
NEW QUESTION # 90
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