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NEW QUESTION # 75
Which component of the AAA service security model provides identity verification?
Answer: C
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 # 76
DRAG DROP
Move each protocol from the list on the left to its correct example on the right.
Answer:
Explanation:
Explanation:
The correct matching of the protocols to their examples is as follows:
DHCP: Assign the reserved IP address 10.10.10.200 to a web server at your company.
DNS: Perform a query to translate companypro.net to an IP address.
ICMP: Perform a ping to ensure that a server is responding to network connections.
Here's how each protocol corresponds to its example:
DHCP (Dynamic Host Configuration Protocol) is used to assign IP addresses to devices on a network.
In this case, DHCP would be used to assign the reserved IP address 10.10.10.200 to a web server.
DNS (Domain Name System) is used to translate domain names into IP addresses. Therefore, to translate companypro.net to an IP address, DNS would be utilized.
ICMP (Internet Control Message Protocol) is used for sending error messages and operational information indicating success or failure when communicating with another IP address. An example of this is using the ping command to check if a server is responding to network connections.
These protocols are essential for the smooth operation of networks and the internet.
Perform a query to translate companypro.net to an IP address.
DNS (Domain Name System): DNS is used to resolve domain names to IP addresses.
Assign the reserved IP address 10.10.10.200 to a web server at your company.
DHCP (Dynamic Host Configuration Protocol): DHCP is used to assign IP addresses to devices on a network.
Perform a ping to ensure that a server is responding to network connections.
ICMP (Internet Control Message Protocol): ICMP is used by network devices to send error messages and operational information, and it is the protocol used by the ping command.
DNS (Domain Name System): DNS translates human-friendly domain names like "companypro.net" into IP addresses that computers use to identify each other on the network.
DHCP (Dynamic Host Configuration Protocol): DHCP automatically assigns IP addresses to devices on a network, ensuring that no two devices have the same IP address.
ICMP (Internet Control Message Protocol): ICMP is used for diagnostic or control purposes, and the ping command uses ICMP to test the reachability of a host on an IP network.
Reference: DNS Basics: What is DNS?
DHCP Overview: What is DHCP?
ICMP and Ping: Understanding ICMP
NEW QUESTION # 77
Your company has 20 Cisco switches throughout its building.
You need to view the configuration of each switch from the command line.
Which protocol should you use?
Answer: D
Explanation:
SNMP is used to monitor and retrieve management information from network devices such as switches. It allows an administrator to view device configuration and status information remotely from the command line through a network management system or SNMP tools.
NEW QUESTION # 78
An engineer configured a new VLAN named VLAN2 for the Data Center team. When the team tries to ping addresses outside VLAN2 from a computer in VLAN2, they are unable to reach them.
What should the engineer configure?
Answer: C
Explanation:
When devices within a VLAN are unable to reach addresses outside their VLAN, it typically indicates that they do not have a configured path to external networks. The engineer should configure a default gateway for VLAN2. The default gateway is the IP address of the router's interface that is connected to the VLAN, which will route traffic from the VLAN to other networks12.
Reference: =
* Understanding and Configuring VLAN Routing and Bridging on a Router Using the IRB Feature
* VLAN 2 not able to ping gateway - Cisco Community
* VLANs: Virtual Local Area Networks (VLANs) logically segment network traffic to improve security and performance. Devices within the same VLAN can communicate directly.
* Default Gateway: For devices in VLAN2 to communicate with devices outside their VLAN, they need a default gateway configured. The default gateway is typically a router or Layer 3 switch that routes traffic between different VLANs and subnets.
* Additional VLAN: Not needed in this scenario as the issue is related to routing traffic outside VLAN2, not creating another VLAN.
* Default Route: While a default route on the router may be necessary, the primary issue for devices within VLAN2 is to have a configured default gateway.
* Static Route: This is used on routers to manually specify routes to specific networks but does not address the need for a default gateway on the client devices.
Reference:
* Cisco VLAN Configuration Guide: Cisco VLAN Configuration
* Understanding and Configuring VLANs: VLANs Guide
NEW QUESTION # 79
A user at your company cannot connect to websites on the internet. However, they can connect to network resources on the company LAN.
You want to use the divide-and-conquer approach to troubleshoot the issue.
What should you do first?
Answer: C
Explanation:
Ping the default gateway from the user ' s computer.
The divide-and-conquer troubleshooting methodology begins at an intermediate OSI layer, typically Layer 3 (Network), rather than systematically examining all seven layers from the top or bottom.
In this scenario, the user can access resources on the local area network but cannot reach websites on the internet.
This suggests that basic local connectivity is operational, although it does not establish whether the computer can communicate with its default gateway.
The most appropriate initial diagnostic action is to ping the default gateway.
A successful ping verifies IP-layer communication with the local router and provides evidence that the underlying LAN connectivity is functioning.
If the ping succeeds, troubleshooting can proceed toward upstream routing, DNS resolution, firewall policies, or internet connectivity.
If the ping fails, the technician should investigate the configured gateway address, VLAN membership, local routing, and Layer 2 connectivity.
Why the other options are incorrect:
A). Telnet tests TCP connectivity to a specific service and is not the preferred initial Layer 3 diagnostic test.
B). Checking the network adapter follows a lower-layer troubleshooting approach.
C). Inspecting cable connections begins at the Physical layer, which is characteristic of bottom-up troubleshooting.
Therefore, Option D correctly applies the divide-and-conquer methodology.
Cisco Press+1
References:
Cisco Certified Support Technician Networking (100-150) - Troubleshooting Methodologies and Diagnostic Tools.
Cisco Press - Troubleshooting Methods for Cisco IP Networks, Divide-and-Conquer Approach.
Cisco Troubleshooting TCP/IP - Checking Local Connectivity and Default Gateway Reachability.
NEW QUESTION # 80
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