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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Security | 10% | - CIA triad and AAA model - Wireless security standards (WPA2/WPA3) - Firewall and access control principles - Common threats and vulnerabilities |
| Topic 2: Diagnosing Problems | 15% | - Troubleshooting methodology - Packet capture and analysis basics - Remote access methods (SSH, RDP, console) - Command-line utilities (ping, traceroute, nslookup) |
| Topic 3: Infrastructure | 20% | - Switching concepts and VLANs - Routing concepts and default gateway - Network device ports and status indicators - Wireless access points and SSIDs |
| Topic 4: Standards and Concepts | 20% | - OSI and TCP/IP models - Bandwidth, throughput, and latency - Network topologies and types - Common network protocols |
| Topic 5: Addressing and Subnet Formats | 20% | - IPv6 addressing and prefixes - Subnet mask and CIDR notation - IPv4 addressing and subnetting - Public vs private IP and NAT |
| Topic 6: Endpoints and Media Types | 15% | - Network cables and connectors - Endpoint devices and operating systems - Wired, wireless, and cellular technologies - Connectivity verification tools |
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NEW QUESTION # 48
A help desk technician receives a report that a user is experiencing network connectivity issues.
The help desk supervisor advises the technician to use a bottom-up troubleshooting method to determine the cause of the problem.
Which two potential issues would the technician check first using the bottom-up method?
(Choose two.)
Answer: B,E
Explanation:
The bottom-up troubleshooting method begins at the physical layer, so the first checks focus on hardware and connectivity media. A failed network interface card and incorrect or damaged cables are both physical-layer problems that should be verified before moving up to configuration or service-related causes.
NEW QUESTION # 49
Which standard contains the specifications for Wi-Fi networks?
Answer: C
Explanation:
IEEE 802.11 is the standard that defines the protocols and specifications for wireless local area (Wi-Fi) networking.
NEW QUESTION # 50
Hotspot Question
A help desk technician is working on a computer that is unable to resolve URLs in the browser.
The technician runs the ipconfig /allcommand and receives the following output:
You need to issue a command to view the network devices in the path from the computer to the server that resolves the host name.
Which command should you issue? Complete the command by selecting the correct option from each drop-down list.
Answer:
Explanation:
Explanation:
To view the network devices along the path, the correct utility is tracert. Since the server responsible for resolving host names is the DNS server, the destination should be the DNS server address shown in the output, 64.100.8.8.
NEW QUESTION # 51
Which network technology is not impacted by electromagnetic and radio wave interference?
Answer: D
Explanation:
Fiber transmits data as light rather than electrical signals, so it is not affected by electromagnetic or radio frequency interference.
NEW QUESTION # 52
Which component of the AAA service security model provides identity verification?
Answer: B
Explanation:
The AAA service security model consists of three components: Authentication, Authorization, and Accounting.
*Authentication: This is the process of verifying the identity of a user or device. It ensures that only legitimate users can access the network or service.
*Authorization: This determines what an authenticated user is allowed to do or access within the network.
*Auditing/Accounting: This component tracks the actions of the user, including what resources they access and what changes they make.
Thus, the correct answer is C. Authentication.
References :=
*Cisco AAA Overview
*Understanding AAA (Authentication, Authorization, and Accounting)
NEW QUESTION # 53
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