Correct Answer: D

The primary purpose of assigning an IP address to the management VLAN interface on a Layer 2 switch is to facilitate remote management of the switch. By configuring an IP address on the management VLAN, network administrators can

access the switch's Command Line Interface (CLI) remotely using protocols such as Telnet or Secure Shell (SSH). This allows for convenient configuration changes, monitoring, and troubleshooting without needing physical access to the

switch1.

References:

-Understanding the Management VLAN

-Cisco - VLAN Configuration Guide

-Remote Management of Switches

Assigning an IP address to the management VLAN interface (often the VLAN 1 interface by default) on a Layer 2 switch allows network administrators to remotely manage the switch using protocols such as Telnet or SSH. This IP address

does not affect the switch's ability to route traffic between VLANs but provides a means to access and configure the switch through its Command Line Interface (CLI).

-A: The switch does not act as a default gateway; this is typically a function of a Layer 3 device like a router.

-B: The switch does not resolve URLs; this is typically a function of DNS servers.

-C: The switch can relay DHCP requests but does not typically provide DHCP services

itself; this is usually done by a dedicated DHCP server or router.

Thus, the correct answer is D. To enable access to the CLI on the switch through Telnet or SSH.

References :

-Cisco VLAN Management Overview

-Cisco Catalyst Switch Management

Correct Answer: B

The command that will display the output provided, which includes capability codes, local interface details, device IDs, hold times, and platform port ID capabilities, is the show cdp neighbor command. This command is used in Cisco devices

to display current information about neighboring devices detected by Cisco Discovery Protocol (CDP), which includes details such as the interface through which the neighbor is connected, the type of device, and the port ID of the device1.

References:

-Cisco - show cdp neighbors

The provided output is from the Cisco Discovery Protocol (CDP) neighbor table. The show cdp neighbor command displays information about directly connected Cisco devices, including Device ID, Local Interface, Holdtime, Capability,

Platform, and Port ID.

-A. show mac-address-table: Displays the MAC address table on the switch.

-C. show inventory: Displays information about the hardware inventory of the device.

-D. show ip interface: Displays IP interface status and configuration.

Thus, the correct answer is B. show cdp neighbor.

References:

-Cisco CDP Neighbor Command

-Understanding CDP

Correct Answer: B

In a network, when a Layer 2 switch (like Switch1) receives a frame destined for a MAC address that is not in its MAC address table, it performs a flooding operation. This means the switch will send the frame out of all ports except the port on

which the frame was received. This flooding ensures that if the destination device is connected to one of the other ports, it will receive the frame and respond, allowing the switch to learn its MAC address. A. Switch1 queries Switch2 for the

MAC address of PC-C: This does not happen in Layer 2 switches; they do not query other switches for MAC addresses. A. Switch1 drops the frame and sends an error message back to PC-A: This is not the default behavior for unknown

unicast frames. D. Switch1 sends an ARP request to obtain the MAC address of PC-C: ARP is used by devices to map IP addresses to MAC addresses, not by switches to find unknown MAC addresses.

Thus, the correct answer is B. Switch1 floods the frame out all active ports except port G0/1.

References:

Cisco Layer 2 Switching Overview

Switching Mechanisms (Cisco)

Correct Answer: C

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.

References := -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.

References: -Cisco VLAN Configuration Guide: Cisco VLAN Configuration -Understanding and Configuring VLANs: VLANs Guide

Correct Answer: C

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.

References:

cisco Catalyst 2960-L Series Switches Data Sheet Cisco PoE Overview

Correct Answer: B

When prioritizing trouble tickets, the most critical issues affecting business operations or high-impact activities should be addressed first. Here's a breakdown of the tickets:

Ticket 1: Relocation of a printer, while necessary, is not urgent and does not impact critical operations.

Ticket 2: An ongoing webinar losing internet access is critical, especially if the webinar is time-sensitive and involves multiple participants. Ticket 3: Slower response time for a cloud-based application is important but typically not as urgent as

a complete loss of internet access for a live event. Ticket 4: Wireless access down in the cafeteria affects users but does not have the same immediate impact as a live webinar losing connectivity. Thus, the correct answer is B. Ticket 2: An

online webinar is taking place in the conference room. The video conferencing equipment lost internet access.

References:

IT Help Desk Best Practices

Prioritizing IT Support Tickets

Correct Answer:

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. Assign the reserved IP address 10.10.10.200 to a web server at your company. Perform a ping to ensure that a server is responding to network connections.

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.

References:

DNS Basics: What is DNS?

DHCP Overview: What is DHCP?

ICMP and Ping: Understanding ICMP

Correct Answer:

To capture packets sent to and received from the URLhttps://www.companypro.net:7100/apiusing Wireshark, you would use the following filter options:

Protocol:tcp

Filter Type:port

Port Number:7100

This filter setup in Wireshark will display all TCP packets that are sent to or received from port 7100, which is the port specified in the URL for the API service. Since HTTPS typically uses TCP as the transport layer protocol, filtering by TCP

and the specific port number will help isolate the relevant packets for troubleshooting the app's data download issues.

cp: The app is using HTTPS, which relies on the TCP protocol for communication. port: The specific port number used by the application, which in this case is 7100. 7100: This is the port specified in the URL (https://

www.companypro.net:7100/api). This filter will capture all TCP traffic on port 7100, allowing you to analyze the packets related to the application's data download.

References:

Wireshark Filters: Wireshark Display Filters

Correct Answer:

A firewall can direct all web traffic to a specific IP address. A firewall can block traffic to specific ports on internal computers. A firewall can prevent specific apps from running on a computer.

Directing Web Traffic: Firewalls can manage traffic redirection using NAT and port forwarding rules to route web traffic to designated servers or devices within the network.

Blocking Specific Ports: Firewalls can enforce security policies by blocking or allowing traffic based on port numbers, ensuring that only permitted traffic reaches internal systems.

Application Control: While firewalls manage network traffic, preventing applications from running typically requires software specifically designed for endpoint protection and application management.

References:

Understanding Firewalls: Firewall Capabilities

Network Security Best Practices: Network Security Guide

Correct Answer:

The two interfaces are administratively shut down:

The two interfaces have default IP addresses assigned:

The two interfaces can communicate over Layer 2:

Interface Status: The absence of the "shutdown" command means the interfaces are not administratively shut down.

IP Address Assignment: There is no evidence in the output that IP addresses have been assigned to the interfaces, which would typically be shown as "ip address" entries.

Layer 2 Communication: Switch interfaces in their default state operate at Layer 2, enabling them to forward Ethernet frames and participate in Layer 2 communication.

References:

Cisco IOS Interface Configuration: Cisco Interface Configuration Understanding Cisco Switch Interfaces: Cisco Switch Interfaces